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class="Header_subtitle__1Hlx3">Included features</strong><h1 class="h1 Header_title__kJX4z">Get the latest advances for free. Make your performance a feature.</h1></div></header><div></div><div class="Container_container__1x51I"><div class="Layout_contentWrapper__3nEl1"><aside class="Aside_wrapper__1B3R4"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-primary__28cyr Button_tertiary__2M2mN Button_before__2SgJS Aside_backLink__2wdIO Button_withIcon__1HB0s" data-testid="Back to overview" href="/web/20201206233841/https://www.cdn77.com/features"><span class="TextWithIcon_wrap__32gwR align-items-center justify-content-center TextWithIcon_noEvent__vGPey"><span class="TextWithIcon_iconWrapper__3kFXP TextWithIcon_before__SJ3GH TextWithIcon_sm__2Z4ci" style="width:14px;height:14px"><span class="TextWithIcon_textForHeight__wR7nH">|</span><span class="TextWithIcon_iconInsideWrapper__3PXoB"></span></span>Back to overview</span></a><div class="Aside_navigationWrapper__eyrG3"><div class="Aside_navigationContent__9mP9r"><div class="Aside_groupsWrapper__1d87O"><div class="Aside_group__2R6SD"><strong 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class="Aside_linksWrapper__1V7Id"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu" data-testid="SSL / TLS Certificates" href="/web/20201206233841/https://www.cdn77.com/ssl">SSL / TLS Certificates</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu" data-testid="DDoS Protection" href="/web/20201206233841/https://www.cdn77.com/ddos-mitigation">DDoS Protection</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="Secure Tokens & Signed URL" href="/web/20201206233841/https://www.cdn77.com/content-protection-access-management">Secure Tokens & Signed URL</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="IP and Geo Whitelisting / Blacklisting" href="/web/20201206233841/https://www.cdn77.com/content-protection-access-management">IP and Geo Whitelisting / Blacklisting</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="Hotlinking Protection" href="/web/20201206233841/https://www.cdn77.com/content-protection-access-management">Hotlinking Protection</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="Origin Protection" href="/web/20201206233841/https://www.cdn77.com/content-protection-access-management">Origin Protection</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu" data-testid="SmartWAF" href="/web/20201206233841/https://www.cdn77.com/waf">SmartWAF</a></div></div><div class="Aside_group__2R6SD"><strong class="Aside_groupTitle__3uckz">Content & CDN Management</strong><div class="Aside_linksWrapper__1V7Id"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu" data-testid="CMS Integration" href="/web/20201206233841/https://www.cdn77.com/cms-integration">CMS Integration</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu" data-testid="CDN Storage" href="/web/20201206233841/https://www.cdn77.com/cdn-storage">CDN Storage</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="Purge & Prefetch" href="/web/20201206233841/https://www.cdn77.com/cdn-management">Purge & Prefetch</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="Customisable cache rule" href="/web/20201206233841/https://www.cdn77.com/cdn-management">Customisable cache rule</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="Data Center Control" href="/web/20201206233841/https://www.cdn77.com/cdn-management">Data Center Control</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu" data-testid="Robust API" href="/web/20201206233841/https://www.cdn77.com/cdn-api">Robust API</a></div></div><div class="Aside_group__2R6SD"><strong class="Aside_groupTitle__3uckz">Reports & analytics</strong><div class="Aside_linksWrapper__1V7Id"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="Traffic &聽Bandwidth Overview" href="/web/20201206233841/https://www.cdn77.com/reports-analytics">Traffic &聽Bandwidth Overview</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="Performance Overview" href="/web/20201206233841/https://www.cdn77.com/reports-analytics">Performance Overview</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="CDN Logs" href="/web/20201206233841/https://www.cdn77.com/reports-analytics">CDN Logs</a><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV Aside_link__2OAmu Aside_connected__2Yiiz" data-testid="Costs & Billing Overview" href="/web/20201206233841/https://www.cdn77.com/reports-analytics">Costs & Billing Overview</a></div></div></div></div><div class="Aside_overlay__2zdvI"></div></div></aside><main class="Layout_content__1ywyN"><h2 class="Layout_title__3NiDl">Latest HTTP/2 Optimization</h2><p class="Paragraph_default__3nDxv mb-5 Paragraph_lg__2VNEs">Let us boost your content delivery with the latest HTTP/2 features and improvements, for free and without any charges per HTTP(S) requests. We were the first CDN to support HTTP/2 back in 2015 and we're still committed to keep pace with the protocol development.</p><p class="Paragraph_default__3nDxv Paragraph_md__3qCCA">Derived from Google's SPDY protocol as a major upgrade to the HTTP protocol, HTTP/2 is made to suit the complexity of modern websites. Its server support is a must to achieve the best website performance and has many advantages over its predecessor HTTP/1.1.</p><div class="mb-6"><div class="OverviewScreens_mainWrapper__ppbHc OverviewScreens_responsiveWrapper___O3O7"><div class="OverviewScreens_wrapper__1JPFP" style="height:294px"><div class="OverviewScreens_innerWrapper__2kXsv" style="height:294px;width:655px"><div class="OverviewScreens_imageWrapper__1s-1i" style="width:335px;height:264px;transform:translate(320px, 30px)"><div></div><noscript><img alt="" class="OverviewScreens_image__2GLvB OverviewScreens_noShadow__1eFef" src="/web/20201206233841im_/https://www.cdn77.com/_next/static/images/clientScreen14-450.bf06d74b.png" srcset="/web/20201206233841im_/https://www.cdn77.com/_next/static/images/clientScreen14-450.bf06d74b.png 450w, /web/20201206233841im_/https://www.cdn77.com/_next/static/images/clientScreen14-712.85ffd88d.png 712w" width="335"/></noscript></div><div class="OverviewScreens_imageWrapper__1s-1i" style="width:335px;height:260px;transform:translate(0px, 0px)"><div></div><noscript><img alt="" class="OverviewScreens_image__2GLvB" src="/web/20201206233841im_/https://www.cdn77.com/_next/static/images/clientScreen13-450.1aa4059d.png" srcset="/web/20201206233841im_/https://www.cdn77.com/_next/static/images/clientScreen13-450.1aa4059d.png 450w, /web/20201206233841im_/https://www.cdn77.com/_next/static/images/clientScreen13-670.95b71fb0.png 670w" width="335"/></noscript></div></div></div></div></div><h3 class="mb-4 mt-7">Main benefits of using HTTP/2</h3><ul class="List_listContainer__2Tji0 List_lgSpacing__1XTEc List_monochromeBullet__2-Ibp List_mdBulletOffset__2iVWb List_dash__1QARd"><li class="List_listItem__14a8D mdText"><strong class="Http2Optimization_listItemTitle__2xiHO">Multiplexing</strong><p class="Paragraph_default__3nDxv Paragraph_md__3qCCA">Also known as parallelisation, HTTP/2 enables the client and server to send multiple requests and responses within a single TCP connection. This significantly lowers page load times by eliminating the unnecessary latency.</p></li><li class="List_listItem__14a8D mdText"><strong class="Http2Optimization_listItemTitle__2xiHO">Reduced Protocol Overhead</strong><p class="Paragraph_default__3nDxv Paragraph_md__3qCCA">HTTP/2 decreases the time needed for metadata transfer by compressing HTTP request and response headers. The overhead is proportional to the number of assets so the impact of such header compression could be huge for websites with a lot of resources.</p></li><li class="List_listItem__14a8D mdText"><strong class="Http2Optimization_listItemTitle__2xiHO">Server Push</strong><p class="Paragraph_default__3nDxv Paragraph_md__3qCCA">Let our edge servers deliver necessary assets even before the client requests it! This feature minimizes the number of round trips by, for example, sending CSS files along with HTML instead of requesting it at the time of parsing. The browser will already have the resources loaded in its local cache. Start using HTTP/2 Server Push by <a class="Button_link__3OsLg Button_md__1KL2x Button_color-primary__28cyr Button_primary__1HfZQ Button_external__2hUJh" target="_blank" rel="noopener noreferrer" data-testid="setting up link headers" href="https://web.archive.org/web/20201206233841/https://client.cdn77.com/support/knowledgebase/cdn-resource/http2-server-push">setting up link headers</a>.</p></li><li class="List_listItem__14a8D mdText"><strong class="Http2Optimization_listItemTitle__2xiHO">Optimized Resources Prioritization</strong><p class="Paragraph_default__3nDxv Paragraph_md__3qCCA">The order in which page resources are loaded is critical for the best user experience. Most web servers support HTTP/2 prioritization but it requires an optimized networking stack given the nature of multiplexing. CDN77 supports proper resources prioritization with BBR congestion control algorithm and tcp_notsent_lowat socket option.</p></li></ul><div class="mt-7"><div class="Note_wrapper__3_En4"><div class="Note_iconWrapper__LMmiZ"></div><p class="Paragraph_darkGray__1xzOb Paragraph_md__3qCCA">Even though HTTP/2 could be technically used without an encrypted connection, all major browsers only support it over TLS 1.2 or 1.3. If your website is not running on HTTPS yet, we have also got you covered with our <a class="Button_link__3OsLg Button_md__1KL2x Button_color-primary__28cyr Button_primary__1HfZQ" data-testid="free SSL certificate options" href="/web/20201206233841/https://www.cdn77.com/ssl">free SSL certificate options</a> and the latest TLS 1.3 support.</p></div></div></main></div></div><section class="Section_wrapper__6r5hs default Section_md__20edk CtaPanel_wrapper__3y_7-"><div class="Container_container__1x51I"><div></div><noscript><img alt="" class="CtaPanel_background__1UmFm" src="/web/20201206233841im_/https://www.cdn77.com/_next/static/images/ctaBackground-450.5dc0ceff.png" srcset="/web/20201206233841im_/https://www.cdn77.com/_next/static/images/ctaBackground-450.5dc0ceff.png 450w, /web/20201206233841im_/https://www.cdn77.com/_next/static/images/ctaBackground-720.0045ffbe.png 720w, /web/20201206233841im_/https://www.cdn77.com/_next/static/images/ctaBackground-1141.cf7a8f70.png 1141w"/></noscript><div class="CtaPanel_content__3BQH5"><header class="CtaPanel_header__1UE0_"><h2 class="CtaPanel_title__pfnIQ h3">Deliver your content with CDN77</h2></header><div class="Row_row__2iXAY justify-content-center align-items-stretch Row_gap-sm__3aLoJ"><div class="Col_col__18TL5 Col_gap-sm__35F2Q Col_col-sm-auto__3dk5p"><a class="Button_button__NTtqi Button_md__1KL2x Button_color-primary__28cyr Button_primary__1HfZQ" data-testid="Contact us" href="/web/20201206233841/https://www.cdn77.com/contact">Contact us</a></div><div class="Col_col__18TL5 Col_gap-sm__35F2Q Col_col-sm-auto__3dk5p"><a class="Button_button__NTtqi Button_md__1KL2x Button_color-primary__28cyr Button_secondary__2imDV" data-testid="Start your free trial" href="/web/20201206233841/https://www.cdn77.com/get-started">Start your free trial</a></div></div></div></div></section></div><footer class="Footer_footerWrapper__n_QYq" data-testid="footer"><div class="Row_row__2iXAY Footer_row__3HmTn justify-content-left 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class="Footer_linksList__1eO-W"><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV text-sm" data-testid="Why CDN77" href="/web/20201206233841/https://www.cdn77.com/why-cdn77">Why CDN77</a></li><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV text-sm" data-testid="Network" href="/web/20201206233841/https://www.cdn77.com/network">Network</a></li><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV text-sm" data-testid="Features" href="/web/20201206233841/https://www.cdn77.com/features">Features</a></li><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV text-sm" data-testid="DDoS Protection" 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Distribution" href="/web/20201206233841/https://www.cdn77.com/software-distribution">Software Distribution</a></li><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV text-sm" data-testid="Gaming" href="/web/20201206233841/https://www.cdn77.com/gaming">Gaming</a></li><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV text-sm" data-testid="Video CDN" href="/web/20201206233841/https://www.cdn77.com/video-cdn">Video CDN</a></li></ul></div></div><div class="Col_col__18TL5 Col_gap-none__3hNIZ Col_col-sm-4__3zkoW"><div class="Footer_linksGroup__1nTP4"><strong class="Footer_groupTitle__1UTuC">Resources</strong><ul class="Footer_linksList__1eO-W"><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV text-sm Button_external__2hUJh" target="_blank" rel="noopener noreferrer" data-testid="Getting started" href="https://web.archive.org/web/20201206233841/https://client.cdn77.com/support/knowledgebase/getting-started">Getting started</a></li><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV text-sm Button_external__2hUJh" target="_blank" rel="noopener noreferrer" data-testid="Knowledge Base" href="https://web.archive.org/web/20201206233841/https://client.cdn77.com/support/knowledgebase">Knowledge Base</a></li><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg Button_md__1KL2x Button_color-secondary__3bv33 Button_secondary__2imDV text-sm Button_external__2hUJh" target="_blank" rel="noopener noreferrer" data-testid="API Documentation" href="https://web.archive.org/web/20201206233841/https://client.cdn77.com/support/api">API Documentation</a></li><li class="Footer_linkWrapper__2tcsB"><a class="Button_link__3OsLg 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