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style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/advanced-certificate-manager/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/advanced-certificate-manager/manage-certificates/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Manage advanced certificates</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/advanced-certificate-manager/api-commands/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" 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href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/http-strict-transport-security/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">HTTP Strict Transport Security (HSTS)</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/certificate-signing-requests/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Certificate Signing Requests (CSRs)</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/tls-13/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">TLS 1.3</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/minimum-tls/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Minimum TLS Version</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/automatic-https-rewrites/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Automatic HTTPS Rewrites</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="22"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Total TLS</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/total-tls/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/total-tls/enable/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Enable</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/total-tls/error-messages/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Error messages</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/always-use-https/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Always Use HTTPS</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/additional-options/opportunistic-encryption/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Opportunistic Encryption</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="13"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Troubleshooting</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/troubleshooting/ca-faq/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">CAs and certificates FAQ</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/troubleshooting/caa-records/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Certification Authority Authorization (CAA) FAQ</span> </a></li> </ul> </details></li> </ul> </details></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="1"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Origin server</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="14"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Encryption modes</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/ssl-modes/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/ssl-modes/off/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Off (no encryption)</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/ssl-modes/flexible/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Flexible</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/ssl-modes/full/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Full</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/ssl-modes/full-strict/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Full (strict)</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/ssl-modes/ssl-only-origin-pull/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Strict (SSL-Only Origin Pull)</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/ssl-tls-recommender/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">SSL/TLS Recommender</span> <span class="sl-badge default small astro-3ii7xxms astro-avdet4wd">Deprecated</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/origin-ca/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Origin CA certificates</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="15"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Authenticated Origin Pulls (mTLS)</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/authenticated-origin-pull/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/authenticated-origin-pull/explanation/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">About</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/authenticated-origin-pull/aws-alb-integration/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">AWS integration</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="23"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Setup</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/authenticated-origin-pull/set-up/zone-level/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Zone-level</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/authenticated-origin-pull/set-up/per-hostname/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Per-hostname</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/authenticated-origin-pull/set-up/manage-certificates/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Manage certificates</span> </a></li> </ul> </details></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/custom-origin-trust-store/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Custom Origin Trust Store</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/origin-configuration/cipher-suites/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Cipher suites</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="2"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Client certificates</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/client-certificates/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/client-certificates/create-a-client-certificate/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Create a client certificate</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/client-certificates/configure-your-mobile-app-or-iot-device/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Configure your mobile app or IoT device</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/client-certificates/enable-mtls/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Enable mTLS</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/client-certificates/byo-ca/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Bring your own CA for mTLS</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/client-certificates/label-client-certificate/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Label client certificates</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/client-certificates/revoke-client-certificate/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Revoke a client certificate</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/client-certificates/troubleshooting/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Troubleshooting</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/cloudflare-one/identity/devices/access-integrations/mutual-tls-authentication/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">mTLS for Zero Trust ↗</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/cloudflare-for-platforms/cloudflare-for-saas/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="large astro-3ii7xxms"> <span class="astro-3ii7xxms">Cloudflare for SaaS ↗</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="3"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Keyless SSL</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="16"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Get started</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/configuration/cloudflare-tunnel/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Cloudflare Tunnel</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/configuration/public-dns/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Public DNS</span> </a></li> </ul> </details></li> <li class="astro-3ii7xxms"> <details class="astro-3ii7xxms"><sl-sidebar-restore data-index="17"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <div class="group-label astro-3ii7xxms"><span class="large astro-3ii7xxms">Hardware security modules</span> </div> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewbox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"> <path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z" /> </svg></summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/hardware-security-modules/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Overview</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/hardware-security-modules/configuration/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Configuration</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/hardware-security-modules/aws-cloud-hsm/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">AWS cloud HSM</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/hardware-security-modules/azure-dedicated-hsm/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Azure Dedicated HSM</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/hardware-security-modules/azure-managed-hsm/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Azure Managed HSM</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/hardware-security-modules/entrust-nshield-connect/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Entrust nShield Connect</span> </a></li> <li class="astro-3ii7xxms"><a href="https://developers-cloudflare-com.translate.goog/ssl/keyless-ssl/hardware-security-modules/fortanix-dsm/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB" 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e=t.getBoundingClientRect(),n=this.#y(t),i=n?window.innerWidth:t.naturalWidth,r=n?window.innerHeight:t.naturalHeight,d=Math.min(window.innerWidth,i),s=Math.min(window.innerHeight,r),l=Math.min(d/i,s/r),a=(n?window.innerWidth:t.naturalWidth)*l,c=(n?window.innerHeight:t.naturalHeight)*l,h=(window.innerHeight-c)/2,u=(window.innerWidth-a)/2,o=t.cloneNode(!0);o.removeAttribute("id"),o.style.position="absolute",o.style.width=`${a}px`,o.style.height=`${c}px`,o.style.top=`${h}px`,o.style.left=`${u}px`,o.style.transform="";const m=e.width/a,p=e.height/c,g=(-u+(e.width-a)/2+e.left)/m,v=(-h+(e.height-c)/2+e.top)/p;return o.style.transform=`scale(${m}, ${p}) translate3d(${g}px, ${v}px, 0)`,o.dataset[this.#r]=o.style.transform,t.parentElement?.tagName==="PICTURE"&&t.currentSrc&&(o.src=t.currentSrc),o}#y(t){return t.currentSrc.toLowerCase().endsWith(".svg")}});</script> <div class="sl-markdown-content astro-cedpceuv"> <p>This page lists Cloudflare requirements for custom certificates and explains how to upload and update these certificates using Cloudflare dashboard or API.</p> <div tabindex="-1" class="heading-wrapper level-h2"> <h2 id="certificate-requirements">Certificate requirements</h2><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/uploading/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#certificate-requirements"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <p>Before accepting custom certificates, Cloudflare parses them and checks for validity according to a list of requirements.</p> <details><summary><p>Full list of requirements</p></summary> <p>Each custom certificate you upload must:</p> <ul> <li><p>Be encoded in PEM format (PEM, PKCS#7, or PKCS#12). See <a href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://www.sslshopper.com/article-most-common-openssl-commands.html" target="_blank" rel="noopener">Converting Using OpenSSL<span> ↗</span></a> for conversion examples.</p></li> <li><p>Not have a <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/remove-file-key-password/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">key file password</a>.</p></li> <li><p>Not be expiring in less than 14 days from time of upload.</p></li> <li><p>Have a subject alternative name (SAN) matching at least one hostname in the zone where it is being uploaded.</p></li> <li><p>Use a private key greater than or equal to a minimum length. Currently, 2048 bit for RSA and 225 bit for ECDSA.</p></li> <li><p>Be publicly trusted by a major browser. This does not apply for certificates that specify <code dir="auto">User Defined</code> as their <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/bundling-methodologies/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">bundling methodology</a>.</p></li> <li><p>Be one of the following certificate types:</p> <ul> <li>Unified Communications Certificates (UCC)</li> <li>Extended Validation (EV)</li> <li>Domain Validated (DV)</li> <li>Organization Validated (OV)</li> </ul></li> </ul> </details> <hr> <div tabindex="-1" class="heading-wrapper level-h2"> <h2 id="upload-a-custom-certificate">Upload a custom certificate</h2><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/uploading/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#upload-a-custom-certificate"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <aside aria-label="Warning" class="starlight-aside starlight-aside--caution"> <p class="starlight-aside__title" aria-hidden="true"> <svg viewbox="0 0 24 24" width="16" height="16" fill="currentColor" class="starlight-aside__icon"> <path d="M12 16C11.8022 16 11.6089 16.0587 11.4444 16.1686C11.28 16.2784 11.1518 16.4346 11.0761 16.6173C11.0004 16.8001 10.9806 17.0011 11.0192 17.1951C11.0578 17.3891 11.153 17.5673 11.2929 17.7071C11.4327 17.847 11.6109 17.9422 11.8049 17.9808C11.9989 18.0194 12.2 17.9996 12.3827 17.9239C12.5654 17.8482 12.7216 17.72 12.8315 17.5556C12.9413 17.3911 13 17.1978 13 17C13 16.7348 12.8946 16.4805 12.7071 16.2929C12.5196 16.1054 12.2652 16 12 16ZM22.67 17.47L14.62 3.47003C14.3598 3.00354 13.9798 2.61498 13.5192 2.3445C13.0586 2.07401 12.5341 1.9314 12 1.9314C11.4659 1.9314 10.9414 2.07401 10.4808 2.3445C10.0202 2.61498 9.64019 3.00354 9.38 3.47003L1.38 17.47C1.11079 17.924 0.966141 18.441 0.960643 18.9688C0.955144 19.4966 1.089 20.0166 1.34868 20.4761C1.60837 20.9356 1.9847 21.3185 2.43968 21.5861C2.89466 21.8536 3.41218 21.9964 3.94 22H20.06C20.5921 22.0053 21.1159 21.8689 21.5779 21.6049C22.0399 21.341 22.4234 20.9589 22.689 20.4978C22.9546 20.0368 23.0928 19.5134 23.0895 18.9814C23.0862 18.4493 22.9414 17.9277 22.67 17.47ZM20.94 19.47C20.8523 19.626 20.7245 19.7556 20.5697 19.8453C20.4149 19.935 20.2389 19.9815 20.06 19.98H3.94C3.76111 19.9815 3.5851 19.935 3.43032 19.8453C3.27553 19.7556 3.14765 19.626 3.06 19.47C2.97223 19.318 2.92602 19.1456 2.92602 18.97C2.92602 18.7945 2.97223 18.622 3.06 18.47L11.06 4.47003C11.1439 4.30623 11.2714 4.16876 11.4284 4.07277C11.5855 3.97678 11.766 3.92599 11.95 3.92599C12.134 3.92599 12.3145 3.97678 12.4716 4.07277C12.6286 4.16876 12.7561 4.30623 12.84 4.47003L20.89 18.47C20.9892 18.6199 21.0462 18.7937 21.055 18.9732C21.0638 19.1527 21.0241 19.3312 20.94 19.49V19.47ZM12 8.00003C11.7348 8.00003 11.4804 8.10538 11.2929 8.29292C11.1054 8.48046 11 8.73481 11 9.00003V13C11 13.2652 11.1054 13.5196 11.2929 13.7071C11.4804 13.8947 11.7348 14 12 14C12.2652 14 12.5196 13.8947 12.7071 13.7071C12.8946 13.5196 13 13.2652 13 13V9.00003C13 8.73481 12.8946 8.48046 12.7071 8.29292C12.5196 8.10538 12.2652 8.00003 12 8.00003Z" /> </svg>Warning</p> <div class="starlight-aside__content"> <p>When using <code dir="auto">compatible</code> or <code dir="auto">modern</code> <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/bundling-methodologies?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">bundling</a>, make sure to upload only the leaf certificate. This will allow Cloudflare to properly handle <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/bundling-methodologies/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#intermediate-and-root-certificates">the expiration of intermediate and root certificates</a>.</p> </div> </aside><starlight-tabs data-sync-key="dashPlusAPI" class="astro-esqgolmp"> <div class="tablist-wrapper not-content astro-esqgolmp"> <ul role="tablist" class="astro-esqgolmp"> <li role="presentation" class="tab astro-esqgolmp"><a role="tab" href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/uploading/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tab-panel-4051" id="tab-4051" aria-selected="true" tabindex="0" class="astro-esqgolmp"> Dashboard </a></li> <li role="presentation" class="tab astro-esqgolmp"><a role="tab" href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/uploading/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#tab-panel-4052" id="tab-4052" aria-selected="false" tabindex="-1" class="astro-esqgolmp"> API </a></li> </ul> </div> <div id="tab-panel-4051" aria-labelledby="tab-4051" role="tabpanel"> <p>To upload a custom SSL certificate in the dashboard:</p> <ol> <li><p>Log in to the <a href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://dash.cloudflare.com" target="_blank" rel="noopener">Cloudflare dashboard<span> ↗</span></a> and select your account.</p></li> <li><p>Select your application.</p></li> <li><p>Go to <strong>SSL/TLS</strong>.</p></li> <li><p>In <strong>Edge Certificates</strong>, select <strong>Upload Custom SSL Certificate</strong>.</p></li> <li><p>Copy and paste relevant values into <strong>SSL Certificate</strong> and <strong>Private key</strong> text areas (or select <strong>Paste from file</strong>).</p> <aside aria-label="Note" class="starlight-aside starlight-aside--note"> <p class="starlight-aside__title" aria-hidden="true"> <svg viewbox="0 0 24 24" width="16" height="16" fill="currentColor" class="starlight-aside__icon"> <path d="M12 11C11.7348 11 11.4804 11.1054 11.2929 11.2929C11.1054 11.4804 11 11.7348 11 12V16C11 16.2652 11.1054 16.5196 11.2929 16.7071C11.4804 16.8946 11.7348 17 12 17C12.2652 17 12.5196 16.8946 12.7071 16.7071C12.8946 16.5196 13 16.2652 13 16V12C13 11.7348 12.8946 11.4804 12.7071 11.2929C12.5196 11.1054 12.2652 11 12 11ZM12.38 7.08C12.1365 6.97998 11.8635 6.97998 11.62 7.08C11.4973 7.12759 11.3851 7.19896 11.29 7.29C11.2017 7.3872 11.1306 7.49882 11.08 7.62C11.024 7.73868 10.9966 7.86882 11 8C10.9992 8.13161 11.0245 8.26207 11.0742 8.38391C11.124 8.50574 11.1973 8.61656 11.29 8.71C11.3872 8.79833 11.4988 8.86936 11.62 8.92C11.7715 8.98224 11.936 9.00632 12.099 8.99011C12.2619 8.97391 12.4184 8.91792 12.5547 8.82707C12.691 8.73622 12.8029 8.61328 12.8805 8.46907C12.9582 8.32486 12.9992 8.16378 13 8C12.9963 7.73523 12.8927 7.48163 12.71 7.29C12.6149 7.19896 12.5028 7.12759 12.38 7.08ZM12 2C10.0222 2 8.08879 2.58649 6.4443 3.6853C4.79981 4.78412 3.51809 6.3459 2.76121 8.17317C2.00433 10.0004 1.8063 12.0111 2.19215 13.9509C2.578 15.8907 3.53041 17.6725 4.92894 19.0711C6.32746 20.4696 8.10929 21.422 10.0491 21.8079C11.9889 22.1937 13.9996 21.9957 15.8268 21.2388C17.6541 20.4819 19.2159 19.2002 20.3147 17.5557C21.4135 15.9112 22 13.9778 22 12C22 10.6868 21.7413 9.38642 21.2388 8.17317C20.7363 6.95991 19.9997 5.85752 19.0711 4.92893C18.1425 4.00035 17.0401 3.26375 15.8268 2.7612C14.6136 2.25866 13.3132 2 12 2ZM12 20C10.4178 20 8.87104 19.5308 7.55544 18.6518C6.23985 17.7727 5.21447 16.5233 4.60897 15.0615C4.00347 13.5997 3.84504 11.9911 4.15372 10.4393C4.4624 8.88743 5.22433 7.46197 6.34315 6.34315C7.46197 5.22433 8.88743 4.4624 10.4393 4.15372C11.9911 3.84504 13.5997 4.00346 15.0615 4.60896C16.5233 5.21447 17.7727 6.23984 18.6518 7.55544C19.5308 8.87103 20 10.4177 20 12C20 14.1217 19.1572 16.1566 17.6569 17.6569C16.1566 19.1571 14.1217 20 12 20Z" /> </svg>Note</p> <div class="starlight-aside__content"> <p>If doing this manually, include the <code dir="auto">---BEGIN CERTIFICATE---</code> and <code dir="auto">---END CERTIFICATE---</code> like the placeholder text.</p> </div> </aside></li> <li><p>Choose the appropriate <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/bundling-methodologies/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB"><strong>Bundle Method</strong></a>.</p></li> <li><p>Select a value for <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#geo-key-manager-private-key-restriction"><strong>Private Key Restriction</strong></a>.</p></li> <li><p>Select a value for <strong>Legacy Client Support</strong>, which specifies <span id="Server Name Indication (SNI)" data-tooltip="" data-content="<p>SNI allows a server to host multiple TLS Certificates for multiple websites using a single IP address. SNI adds the website hostname in the TLS handshake to inform the server which website to present when using shared IPs.</p> " class="border-b-2 border-dashed border-accent-600" tabindex="0"><a href="https://developers-cloudflare-com.translate.goog/ssl/reference/browser-compatibility/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#non-sni-support">Server Name Indication (SNI)</a></span><script type="module" src="/_astro/GlossaryTooltip.astro_astro_type_script_index_0_lang.DgoJ03XL.js"></script> support:</p> <ul> <li><p><strong>Modern (recommended)</strong>: SNI only</p></li> <li><p><strong>Legacy</strong>: Supports non-SNI</p> <aside aria-label="Warning" class="starlight-aside starlight-aside--caution"> <p class="starlight-aside__title" aria-hidden="true"> <svg viewbox="0 0 24 24" width="16" height="16" fill="currentColor" class="starlight-aside__icon"> <path d="M12 16C11.8022 16 11.6089 16.0587 11.4444 16.1686C11.28 16.2784 11.1518 16.4346 11.0761 16.6173C11.0004 16.8001 10.9806 17.0011 11.0192 17.1951C11.0578 17.3891 11.153 17.5673 11.2929 17.7071C11.4327 17.847 11.6109 17.9422 11.8049 17.9808C11.9989 18.0194 12.2 17.9996 12.3827 17.9239C12.5654 17.8482 12.7216 17.72 12.8315 17.5556C12.9413 17.3911 13 17.1978 13 17C13 16.7348 12.8946 16.4805 12.7071 16.2929C12.5196 16.1054 12.2652 16 12 16ZM22.67 17.47L14.62 3.47003C14.3598 3.00354 13.9798 2.61498 13.5192 2.3445C13.0586 2.07401 12.5341 1.9314 12 1.9314C11.4659 1.9314 10.9414 2.07401 10.4808 2.3445C10.0202 2.61498 9.64019 3.00354 9.38 3.47003L1.38 17.47C1.11079 17.924 0.966141 18.441 0.960643 18.9688C0.955144 19.4966 1.089 20.0166 1.34868 20.4761C1.60837 20.9356 1.9847 21.3185 2.43968 21.5861C2.89466 21.8536 3.41218 21.9964 3.94 22H20.06C20.5921 22.0053 21.1159 21.8689 21.5779 21.6049C22.0399 21.341 22.4234 20.9589 22.689 20.4978C22.9546 20.0368 23.0928 19.5134 23.0895 18.9814C23.0862 18.4493 22.9414 17.9277 22.67 17.47ZM20.94 19.47C20.8523 19.626 20.7245 19.7556 20.5697 19.8453C20.4149 19.935 20.2389 19.9815 20.06 19.98H3.94C3.76111 19.9815 3.5851 19.935 3.43032 19.8453C3.27553 19.7556 3.14765 19.626 3.06 19.47C2.97223 19.318 2.92602 19.1456 2.92602 18.97C2.92602 18.7945 2.97223 18.622 3.06 18.47L11.06 4.47003C11.1439 4.30623 11.2714 4.16876 11.4284 4.07277C11.5855 3.97678 11.766 3.92599 11.95 3.92599C12.134 3.92599 12.3145 3.97678 12.4716 4.07277C12.6286 4.16876 12.7561 4.30623 12.84 4.47003L20.89 18.47C20.9892 18.6199 21.0462 18.7937 21.055 18.9732C21.0638 19.1527 21.0241 19.3312 20.94 19.49V19.47ZM12 8.00003C11.7348 8.00003 11.4804 8.10538 11.2929 8.29292C11.1054 8.48046 11 8.73481 11 9.00003V13C11 13.2652 11.1054 13.5196 11.2929 13.7071C11.4804 13.8947 11.7348 14 12 14C12.2652 14 12.5196 13.8947 12.7071 13.7071C12.8946 13.5196 13 13.2652 13 13V9.00003C13 8.73481 12.8946 8.48046 12.7071 8.29292C12.5196 8.10538 12.2652 8.00003 12 8.00003Z" /> </svg>Warning</p> <div class="starlight-aside__content"> <p>Custom certificates of the type <code dir="auto">legacy_custom</code> are not compatible with <a href="https://developers-cloudflare-com.translate.goog/byoip/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">BYOIP</a>.</p> </div> </aside></li> </ul></li> <li><p>Select <strong>Upload Custom Certificate</strong>. If you see an error for <code dir="auto">The key you provided does not match the certificate</code>, contact your Certificate Authority to ensure the private key matches the certificate.</p></li> <li><p>(optional) <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/caa-records/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">Add a CAA DNS record</a>.</p></li> </ol> </div> <div id="tab-panel-4052" aria-labelledby="tab-4052" role="tabpanel" hidden> <p>The following call will upload a certificate for use with <code dir="auto">app.example.com</code>. Cloudflare will automatically bundle the certificate with a certificate chain optimized for maximum compatibility with browsers.</p> <aside aria-label="Warning" class="starlight-aside starlight-aside--caution"> <p class="starlight-aside__title" aria-hidden="true"> <svg viewbox="0 0 24 24" width="16" height="16" fill="currentColor" class="starlight-aside__icon"> <path d="M12 16C11.8022 16 11.6089 16.0587 11.4444 16.1686C11.28 16.2784 11.1518 16.4346 11.0761 16.6173C11.0004 16.8001 10.9806 17.0011 11.0192 17.1951C11.0578 17.3891 11.153 17.5673 11.2929 17.7071C11.4327 17.847 11.6109 17.9422 11.8049 17.9808C11.9989 18.0194 12.2 17.9996 12.3827 17.9239C12.5654 17.8482 12.7216 17.72 12.8315 17.5556C12.9413 17.3911 13 17.1978 13 17C13 16.7348 12.8946 16.4805 12.7071 16.2929C12.5196 16.1054 12.2652 16 12 16ZM22.67 17.47L14.62 3.47003C14.3598 3.00354 13.9798 2.61498 13.5192 2.3445C13.0586 2.07401 12.5341 1.9314 12 1.9314C11.4659 1.9314 10.9414 2.07401 10.4808 2.3445C10.0202 2.61498 9.64019 3.00354 9.38 3.47003L1.38 17.47C1.11079 17.924 0.966141 18.441 0.960643 18.9688C0.955144 19.4966 1.089 20.0166 1.34868 20.4761C1.60837 20.9356 1.9847 21.3185 2.43968 21.5861C2.89466 21.8536 3.41218 21.9964 3.94 22H20.06C20.5921 22.0053 21.1159 21.8689 21.5779 21.6049C22.0399 21.341 22.4234 20.9589 22.689 20.4978C22.9546 20.0368 23.0928 19.5134 23.0895 18.9814C23.0862 18.4493 22.9414 17.9277 22.67 17.47ZM20.94 19.47C20.8523 19.626 20.7245 19.7556 20.5697 19.8453C20.4149 19.935 20.2389 19.9815 20.06 19.98H3.94C3.76111 19.9815 3.5851 19.935 3.43032 19.8453C3.27553 19.7556 3.14765 19.626 3.06 19.47C2.97223 19.318 2.92602 19.1456 2.92602 18.97C2.92602 18.7945 2.97223 18.622 3.06 18.47L11.06 4.47003C11.1439 4.30623 11.2714 4.16876 11.4284 4.07277C11.5855 3.97678 11.766 3.92599 11.95 3.92599C12.134 3.92599 12.3145 3.97678 12.4716 4.07277C12.6286 4.16876 12.7561 4.30623 12.84 4.47003L20.89 18.47C20.9892 18.6199 21.0462 18.7937 21.055 18.9732C21.0638 19.1527 21.0241 19.3312 20.94 19.49V19.47ZM12 8.00003C11.7348 8.00003 11.4804 8.10538 11.2929 8.29292C11.1054 8.48046 11 8.73481 11 9.00003V13C11 13.2652 11.1054 13.5196 11.2929 13.7071C11.4804 13.8947 11.7348 14 12 14C12.2652 14 12.5196 13.8947 12.7071 13.7071C12.8946 13.5196 13 13.2652 13 13V9.00003C13 8.73481 12.8946 8.48046 12.7071 8.29292C12.5196 8.10538 12.2652 8.00003 12 8.00003Z" /> </svg>Warning</p> <div class="starlight-aside__content"> <p>Note that if you are using an ECC key generated by OpenSSL, you will need to first remove the <code dir="auto">-----BEGIN EC PARAMETERS-----...-----END EC PARAMETERS-----</code> section of the file.</p> </div> </aside> <ol> <li>Update the file and build the payload</li> </ol> <div class="expressive-code"> <link rel="stylesheet" href="/_astro/ec.jmw5e.css"> <script type="module" src="/_astro/ec.8zarh.js"></script> <figure class="frame is-terminal not-content"> <figcaption class="header"> <span class="title"></span><span class="sr-only">Terminal window</span> </figcaption> <pre data-language="sh"><code> <div class="ec-line"> <div class="code"> <span style="--0:#57C78F;--1:#00783C">cat</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00">app_example_com.pem</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="cat app_example_com.pem"> <div></div></button> </div> </figure> </div> <div class="expressive-code"> <style>.expressive-code:has(figure.code-output){margin-top:0 !important}.expressive-code .code-output .copy{display:none !important}.expressive-code .code-output > pre{border-top-width:0 !important;background:var(--sl-color-gray-6) !important}.expressive-code .code-output > pre > code{user-select:none;transition:opacity 0.5s ease}.expressive-code .code-output > pre > code:hover{cursor:default;opacity:0.5}</style> <figure class="frame code-output not-content"> <figcaption class="header"></figcaption> <pre data-language="sh"><code> <div class="ec-line"> <div class="code"> <span style="--0:#57C78F;--1:#00783C">-----BEGIN</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00">CERTIFICATE-----</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#57C78F;--1:#00783C">MIIFJDCCBAygAwIBAgIQD0ifmj/Yi5NP/2gdUySbfzANBgkqhkiG9w0BAQsFADBN</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#57C78F;--1:#00783C">MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMScwJQYDVQQDEx5E</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#57C78F;--1:#00783C">...</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#57C78F;--1:#00783C">SzSHfXp5lnu/3V08I72q1QNzOCgY1XeL4GKVcj4or6cT6tX6oJH7ePPmfrBfqI/O</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#57C78F;--1:#00783C">OeH8gMJ+FuwtXYEPa4hBf38M5eU5xWG7</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#57C78F;--1:#00783C">-----END</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00">CERTIFICATE-----</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="-----BEGIN CERTIFICATE-----MIIFJDCCBAygAwIBAgIQD0ifmj/Yi5NP/2gdUySbfzANBgkqhkiG9w0BAQsFADBNMQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMScwJQYDVQQDEx5E...SzSHfXp5lnu/3V08I72q1QNzOCgY1XeL4GKVcj4or6cT6tX6oJH7ePPmfrBfqI/OOeH8gMJ+FuwtXYEPa4hBf38M5eU5xWG7-----END CERTIFICATE-----"> <div></div></button> </div> </figure> </div> <div class="expressive-code"> <figure class="frame is-terminal not-content"> <figcaption class="header"> <span class="title"></span><span class="sr-only">Terminal window</span> </figcaption> <pre data-language="sh"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EEFFFF;--1:#00268F">MYCERT</span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#FDDA68;--1:#A84E00">"</span><span style="--0:#89DDFF;--1:#007474">$(</span><span style="--0:#57C78F;--1:#00783C">cat</span><span style="--0:#FDDA68;--1:#A84E00"> app_example_com.pem</span><span style="--0:#EE9080;--1:#8F1500">|</span><span style="--0:#57C78F;--1:#00783C">perl</span><span style="--0:#FDDA68;--1:#A84E00"> -pe 's/\r?\n/\\n/'</span><span style="--0:#EE9080;--1:#8F1500">|</span><span style="--0:#57C78F;--1:#00783C">sed</span><span style="--0:#FDDA68;--1:#A84E00"> -e 's/..$//'</span><span style="--0:#89DDFF;--1:#007474">)</span><span style="--0:#FDDA68;--1:#A84E00">"</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#EEFFFF;--1:#00268F">MYKEY</span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#FDDA68;--1:#A84E00">"</span><span style="--0:#89DDFF;--1:#007474">$(</span><span style="--0:#57C78F;--1:#00783C">cat</span><span style="--0:#FDDA68;--1:#A84E00"> app_example_com.key</span><span style="--0:#EE9080;--1:#8F1500">|</span><span style="--0:#57C78F;--1:#00783C">perl</span><span style="--0:#FDDA68;--1:#A84E00"> -pe 's/\r?\n/\\n/'</span><span style="--0:#EE9080;--1:#8F1500">|</span><span style="--0:#57C78F;--1:#00783C">sed</span><span style="--0:#FDDA68;--1:#A84E00"> -e's/..$//'</span><span style="--0:#89DDFF;--1:#007474">)</span><span style="--0:#FDDA68;--1:#A84E00">"</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="MYCERT="$(cat app_example_com.pem|perl -pe 's/\r?\n/\\n/'|sed -e 's/..$//')"MYKEY="$(cat app_example_com.key|perl -pe 's/\r?\n/\\n/'|sed -e's/..$//')""> <div></div></button> </div> </figure> </div> <p>With the certificate and key saved to environment variables (using escaped newlines), build the payload:</p> <div class="expressive-code"> <link rel="stylesheet" href="/_astro/ec.jmw5e.css"> <script type="module" src="/_astro/ec.8zarh.js"></script> <figure class="frame is-terminal not-content"> <figcaption class="header"> <span class="title"></span><span class="sr-only">Terminal window</span> </figcaption> <pre data-language="bash"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EEFFFF;--1:#00268F">request_body</span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#89DDFF;--1:#007474">$(</span><span style="--0:#EE9080;--1:#8F1500"><</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00"><(</span><span style="--0:#57C78F;--1:#00783C">cat</span><span style="--0:#FDDA68;--1:#A84E00"> </span><span style="--0:#EE9080;--1:#8F1500"><<</span><span style="--0:#FDDA68;--1:#A84E00">EOF</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"certificate": "</span><span style="--0:#EEFFFF;--1:#00268F">$MYCERT</span><span style="--0:#FDDA68;--1:#A84E00">",</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"private_key": "</span><span style="--0:#EEFFFF;--1:#00268F">$MYKEY</span><span style="--0:#FDDA68;--1:#A84E00">",</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"bundle_method": "ubiquitous"</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">}</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">EOF</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">)</span><span style="--0:#89DDFF;--1:#007474">)</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="request_body=$(< <(cat <<EOF{ "certificate": "$MYCERT", "private_key": "$MYKEY", "bundle_method": "ubiquitous"}EOF))"> <div></div></button> </div> </figure> </div> <p>You can optionally add <a href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://blog.cloudflare.com/introducing-cloudflare-geo-key-manager/" target="_blank" rel="noopener">geographic restrictions<span> ↗</span></a> that specify where your private key can physically be decrypted:</p> <div class="expressive-code"> <figure class="frame is-terminal not-content"> <figcaption class="header"> <span class="title"></span><span class="sr-only">Terminal window</span> </figcaption> <pre data-language="bash"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EEFFFF;--1:#00268F">request_body</span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#89DDFF;--1:#007474">$(</span><span style="--0:#EE9080;--1:#8F1500"><</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00"><(</span><span style="--0:#57C78F;--1:#00783C">cat</span><span style="--0:#FDDA68;--1:#A84E00"> </span><span style="--0:#EE9080;--1:#8F1500"><<</span><span style="--0:#FDDA68;--1:#A84E00">EOF</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"certificate": "</span><span style="--0:#EEFFFF;--1:#00268F">$MYCERT</span><span style="--0:#FDDA68;--1:#A84E00">",</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"private_key": "</span><span style="--0:#EEFFFF;--1:#00268F">$MYKEY</span><span style="--0:#FDDA68;--1:#A84E00">",</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"bundle_method": "ubiquitous",</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"geo_restrictions": {"label": "us"}'</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">}</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">EOF</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">)</span><span style="--0:#89DDFF;--1:#007474">)</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="request_body=$(< <(cat <<EOF{ "certificate": "$MYCERT", "private_key": "$MYKEY", "bundle_method": "ubiquitous", "geo_restrictions": {"label": "us"}'}EOF))"> <div></div></button> </div> </figure> </div> <p>You can also enable support for legacy clients which do not include SNI in the TLS handshake.</p> <div class="expressive-code"> <figure class="frame is-terminal not-content"> <figcaption class="header"> <span class="title"></span><span class="sr-only">Terminal window</span> </figcaption> <pre data-language="bash"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EEFFFF;--1:#00268F">request_body</span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#89DDFF;--1:#007474">$(</span><span style="--0:#EE9080;--1:#8F1500"><</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00"><(</span><span style="--0:#57C78F;--1:#00783C">cat</span><span style="--0:#FDDA68;--1:#A84E00"> </span><span style="--0:#EE9080;--1:#8F1500"><<</span><span style="--0:#FDDA68;--1:#A84E00">EOF</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"certificate": "</span><span style="--0:#EEFFFF;--1:#00268F">$MYCERT</span><span style="--0:#FDDA68;--1:#A84E00">",</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"private_key": "</span><span style="--0:#EEFFFF;--1:#00268F">$MYKEY</span><span style="--0:#FDDA68;--1:#A84E00">",</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"bundle_method": "ubiquitous",</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"geo_restrictions": {"label": "us"}',</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00">"type":"sni_custom"</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">}</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">EOF</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#FDDA68;--1:#A84E00">)</span><span style="--0:#89DDFF;--1:#007474">)</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="request_body=$(< <(cat <<EOF{ "certificate": "$MYCERT", "private_key": "$MYKEY", "bundle_method": "ubiquitous", "geo_restrictions": {"label": "us"}', "type":"sni_custom"}EOF))"> <div></div></button> </div> </figure> </div> <p><code dir="auto">sni_custom</code> is recommended by Cloudflare. Use <code dir="auto">legacy_custom</code> when a specific client requires non-SNI support. The Cloudflare API treats all Custom SSL certificates as Legacy by default.</p> <aside aria-label="Warning" class="starlight-aside starlight-aside--caution"> <p class="starlight-aside__title" aria-hidden="true"> <svg viewbox="0 0 24 24" width="16" height="16" fill="currentColor" class="starlight-aside__icon"> <path d="M12 16C11.8022 16 11.6089 16.0587 11.4444 16.1686C11.28 16.2784 11.1518 16.4346 11.0761 16.6173C11.0004 16.8001 10.9806 17.0011 11.0192 17.1951C11.0578 17.3891 11.153 17.5673 11.2929 17.7071C11.4327 17.847 11.6109 17.9422 11.8049 17.9808C11.9989 18.0194 12.2 17.9996 12.3827 17.9239C12.5654 17.8482 12.7216 17.72 12.8315 17.5556C12.9413 17.3911 13 17.1978 13 17C13 16.7348 12.8946 16.4805 12.7071 16.2929C12.5196 16.1054 12.2652 16 12 16ZM22.67 17.47L14.62 3.47003C14.3598 3.00354 13.9798 2.61498 13.5192 2.3445C13.0586 2.07401 12.5341 1.9314 12 1.9314C11.4659 1.9314 10.9414 2.07401 10.4808 2.3445C10.0202 2.61498 9.64019 3.00354 9.38 3.47003L1.38 17.47C1.11079 17.924 0.966141 18.441 0.960643 18.9688C0.955144 19.4966 1.089 20.0166 1.34868 20.4761C1.60837 20.9356 1.9847 21.3185 2.43968 21.5861C2.89466 21.8536 3.41218 21.9964 3.94 22H20.06C20.5921 22.0053 21.1159 21.8689 21.5779 21.6049C22.0399 21.341 22.4234 20.9589 22.689 20.4978C22.9546 20.0368 23.0928 19.5134 23.0895 18.9814C23.0862 18.4493 22.9414 17.9277 22.67 17.47ZM20.94 19.47C20.8523 19.626 20.7245 19.7556 20.5697 19.8453C20.4149 19.935 20.2389 19.9815 20.06 19.98H3.94C3.76111 19.9815 3.5851 19.935 3.43032 19.8453C3.27553 19.7556 3.14765 19.626 3.06 19.47C2.97223 19.318 2.92602 19.1456 2.92602 18.97C2.92602 18.7945 2.97223 18.622 3.06 18.47L11.06 4.47003C11.1439 4.30623 11.2714 4.16876 11.4284 4.07277C11.5855 3.97678 11.766 3.92599 11.95 3.92599C12.134 3.92599 12.3145 3.97678 12.4716 4.07277C12.6286 4.16876 12.7561 4.30623 12.84 4.47003L20.89 18.47C20.9892 18.6199 21.0462 18.7937 21.055 18.9732C21.0638 19.1527 21.0241 19.3312 20.94 19.49V19.47ZM12 8.00003C11.7348 8.00003 11.4804 8.10538 11.2929 8.29292C11.1054 8.48046 11 8.73481 11 9.00003V13C11 13.2652 11.1054 13.5196 11.2929 13.7071C11.4804 13.8947 11.7348 14 12 14C12.2652 14 12.5196 13.8947 12.7071 13.7071C12.8946 13.5196 13 13.2652 13 13V9.00003C13 8.73481 12.8946 8.48046 12.7071 8.29292C12.5196 8.10538 12.2652 8.00003 12 8.00003Z" /> </svg>Warning</p> <div class="starlight-aside__content"> <p>Custom certificates of the type <code dir="auto">legacy_custom</code> are not compatible with <a href="https://developers-cloudflare-com.translate.goog/byoip/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">BYOIP</a>.</p> </div> </aside> <ol start="2"> <li>Upload your certificate and key</li> </ol> <p>Use the <a href="https://developers-cloudflare-com.translate.goog/api/operations/custom-ssl-for-a-zone-create-ssl-configuration?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">POST</a> endpoint to upload your certificate and key.</p> <div class="expressive-code"> <figure class="frame is-terminal not-content"> <figcaption class="header"> <span class="title"></span><span class="sr-only">Terminal window</span> </figcaption> <pre data-language="bash"><code> <div class="ec-line"> <div class="code"> <span style="--0:#57C78F;--1:#00783C">curl</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00">https://api.cloudflare.com/client/v4/zones/{zone_id}/custom_certificates</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#446E7F">\</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#EEFFFF;--1:#62676A">--header </span><span style="--0:#FDDA68;--1:#A84E00">"X-Auth-Email: <EMAIL>"</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#446E7F">\</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#EEFFFF;--1:#62676A">--header </span><span style="--0:#FDDA68;--1:#A84E00">"X-Auth-Key: <API_KEY>"</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#446E7F">\</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#EEFFFF;--1:#62676A">--header </span><span style="--0:#FDDA68;--1:#A84E00">"Content-Type: application/json"</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#446E7F">\</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#EEFFFF;--1:#62676A">--data </span><span style="--0:#FDDA68;--1:#A84E00">"</span><span style="--0:#EEFFFF;--1:#00268F">$request_body</span><span style="--0:#FDDA68;--1:#A84E00">"</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="curl https://api.cloudflare.com/client/v4/zones/{zone_id}/custom_certificates \--header "X-Auth-Email: <EMAIL>" \--header "X-Auth-Key: <API_KEY>" \--header "Content-Type: application/json" \--data "$request_body""> <div></div></button> </div> </figure> </div> <ol start="3"> <li>(Optional) Add a CAA record.</li> </ol> <p>A Certificate Authority Authorization (CAA) DNS record specifies which certificate authorities (CAs) are allowed to issue certificates for a domain. This record reduces the chance of unauthorized certificate issuance and promotes standardization across your organization.</p> <p>For more guidance, refer to <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/caa-records/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">Create a CAA record</a>.</p> </div> <starlight-tabs-restore class="astro-esqgolmp"></starlight-tabs-restore> </starlight-tabs> <hr> <div tabindex="-1" class="heading-wrapper level-h2"> <h2 id="update-an-existing-custom-certificate">Update an existing custom certificate</h2><a class="anchor-link" href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/uploading/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#update-an-existing-custom-certificate"><span aria-hidden="true" class="anchor-icon"> <svg width="16" height="16" viewbox="0 0 24 24"> <path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z" /> </svg></span></a> </div> <p>Before you update an existing custom certificate, you might want to consider having active <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/universal-ssl/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">universal</a> or <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/advanced-certificate-manager/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">advanced</a> certificates as fallback options. Go to <a href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://dash.cloudflare.com/?to%3D/:account/:zone/ssl-tls/edge-certificates" target="_blank" rel="noopener"><strong>SSL/TLS</strong> > <strong>Edge Certificates</strong><span> ↗</span></a> to check a list of hostnames and status of the edge certificates in your zone.</p> <p>If you are on an Enterprise plan and want to update a custom (modern) certificate, also consider requesting access to <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/staging-environment/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB">Staging environment (Beta)</a>.</p> <p>Replacing a custom certificate following these steps does not lead to any downtime. No connections will be terminated and new connections will use the new certificate. The old certificate will only actually be deleted when the new certificate is uploaded and active.</p> <script> (() => { class StarlightTabsRestore extends HTMLElement { connectedCallback() { const starlightTabs = this.closest('starlight-tabs'); if (!(starlightTabs instanceof HTMLElement) || typeof localStorage === 'undefined') return; const syncKey = starlightTabs.dataset.syncKey; if (!syncKey) return; const label = localStorage.getItem(`starlight-synced-tabs__${syncKey}`); if (!label) return; const tabs = [...starlightTabs?.querySelectorAll('[role="tab"]')]; const tabIndexToRestore = tabs.findIndex( (tab) => tab instanceof HTMLAnchorElement && tab.textContent?.trim() === label ); const panels = starlightTabs?.querySelectorAll(':scope > [role="tabpanel"]'); const newTab = tabs[tabIndexToRestore]; const newPanel = panels[tabIndexToRestore]; if (tabIndexToRestore < 1 || !newTab || !newPanel) return; tabs[0]?.setAttribute('aria-selected', 'false'); tabs[0]?.setAttribute('tabindex', 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aria-selected="false" tabindex="-1" class="astro-esqgolmp"> API </a></li> </ul> </div> <div id="tab-panel-4049" aria-labelledby="tab-4049" role="tabpanel"> <p>To update a certificate in the dashboard:</p> <ol> <li>Log in to the <a href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://dash.cloudflare.com" target="_blank" rel="noopener">Cloudflare dashboard<span> ↗</span></a> and select your account.</li> <li>Select your application.</li> <li>Go to <strong>SSL/TLS</strong>.</li> <li>In <strong>Edge Certificates</strong>, locate a custom certificate.</li> <li>Select the wrench icon and select <strong>Replace SSL certificate and key</strong>.</li> <li>Follow the same steps as <a href="https://developers-cloudflare-com.translate.goog/ssl/edge-certificates/custom-certificates/uploading/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB#upload-a-custom-certificate">upload a new certificate</a>.</li> </ol> </div> <div id="tab-panel-4050" aria-labelledby="tab-4050" role="tabpanel" hidden> <p>To update a certificate using the API, send a <a href="https://developers-cloudflare-com.translate.goog/api/operations/custom-ssl-for-a-zone-edit-ssl-configuration?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=en-GB"><code dir="auto">PATCH</code></a> command.</p> </div> <starlight-tabs-restore class="astro-esqgolmp"></starlight-tabs-restore> </starlight-tabs> <script type="module">class r extends HTMLElement{static#e=new Map;#t;#n="starlight-synced-tabs__";constructor(){super();const t=this.querySelector('[role="tablist"]');if(this.tabs=[...t.querySelectorAll('[role="tab"]')],this.panels=[...this.querySelectorAll(':scope > [role="tabpanel"]')],this.#t=this.dataset.syncKey,this.#t){const i=r.#e.get(this.#t)??[];i.push(this),r.#e.set(this.#t,i)}this.tabs.forEach((i,c)=>{i.addEventListener("click",e=>{e.preventDefault();const n=t.querySelector('[aria-selected="true"]');e.currentTarget!==n&&this.switchTab(e.currentTarget,c)}),i.addEventListener("keydown",e=>{const 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t.textContent?.trim()}}customElements.define("starlight-tabs",r);</script> <aside aria-label="Note" class="starlight-aside starlight-aside--note"> <p class="starlight-aside__title" aria-hidden="true"> <svg viewbox="0 0 24 24" width="16" height="16" fill="currentColor" class="starlight-aside__icon"> <path d="M12 11C11.7348 11 11.4804 11.1054 11.2929 11.2929C11.1054 11.4804 11 11.7348 11 12V16C11 16.2652 11.1054 16.5196 11.2929 16.7071C11.4804 16.8946 11.7348 17 12 17C12.2652 17 12.5196 16.8946 12.7071 16.7071C12.8946 16.5196 13 16.2652 13 16V12C13 11.7348 12.8946 11.4804 12.7071 11.2929C12.5196 11.1054 12.2652 11 12 11ZM12.38 7.08C12.1365 6.97998 11.8635 6.97998 11.62 7.08C11.4973 7.12759 11.3851 7.19896 11.29 7.29C11.2017 7.3872 11.1306 7.49882 11.08 7.62C11.024 7.73868 10.9966 7.86882 11 8C10.9992 8.13161 11.0245 8.26207 11.0742 8.38391C11.124 8.50574 11.1973 8.61656 11.29 8.71C11.3872 8.79833 11.4988 8.86936 11.62 8.92C11.7715 8.98224 11.936 9.00632 12.099 8.99011C12.2619 8.97391 12.4184 8.91792 12.5547 8.82707C12.691 8.73622 12.8029 8.61328 12.8805 8.46907C12.9582 8.32486 12.9992 8.16378 13 8C12.9963 7.73523 12.8927 7.48163 12.71 7.29C12.6149 7.19896 12.5028 7.12759 12.38 7.08ZM12 2C10.0222 2 8.08879 2.58649 6.4443 3.6853C4.79981 4.78412 3.51809 6.3459 2.76121 8.17317C2.00433 10.0004 1.8063 12.0111 2.19215 13.9509C2.578 15.8907 3.53041 17.6725 4.92894 19.0711C6.32746 20.4696 8.10929 21.422 10.0491 21.8079C11.9889 22.1937 13.9996 21.9957 15.8268 21.2388C17.6541 20.4819 19.2159 19.2002 20.3147 17.5557C21.4135 15.9112 22 13.9778 22 12C22 10.6868 21.7413 9.38642 21.2388 8.17317C20.7363 6.95991 19.9997 5.85752 19.0711 4.92893C18.1425 4.00035 17.0401 3.26375 15.8268 2.7612C14.6136 2.25866 13.3132 2 12 2ZM12 20C10.4178 20 8.87104 19.5308 7.55544 18.6518C6.23985 17.7727 5.21447 16.5233 4.60897 15.0615C4.00347 13.5997 3.84504 11.9911 4.15372 10.4393C4.4624 8.88743 5.22433 7.46197 6.34315 6.34315C7.46197 5.22433 8.88743 4.4624 10.4393 4.15372C11.9911 3.84504 13.5997 4.00346 15.0615 4.60896C16.5233 5.21447 17.7727 6.23984 18.6518 7.55544C19.5308 8.87103 20 10.4177 20 12C20 14.1217 19.1572 16.1566 17.6569 17.6569C16.1566 19.1571 14.1217 20 12 20Z" /> </svg>Note</p> <div class="starlight-aside__content"> <p>To update the <strong>Private Key Restriction</strong> setting of a certificate, delete and re-add the certificate.</p> </div> </aside> <div class="feedback-prompt-content astro-cedpceuv"><feedback-prompt class="not-content astro-x6kpz2mu"> <div id="feedback-thumbs" class="astro-x6kpz2mu"> <h2 class="astro-x6kpz2mu">Was this helpful?</h2> <div class="not-content astro-x6kpz2mu"> <svg width="1em" height="1em" class="astro-x6kpz2mu" data-icon="material-symbols:thumb-up-outline-rounded"> <title>Yes</title><symbol id="ai:material-symbols:thumb-up-outline-rounded" viewbox="0 0 24 24"> <path fill="currentColor" d="M21 8q.8 0 1.4.6T23 10v2q0 .175-.05.375t-.1.375l-3 7.05q-.225.5-.75.85T18 21H7V8l6-5.95q.375-.375.888-.437t.987.187t.7.7t.1.925L14.55 8zM9 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