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(Click to learn more.)"><span class="icon icon-question-mark "></span></a></div></form></li><li class=" "><a data-locale="de" href="/de/docs/Web/API/Navigator/connection" class="button submenu-item"><span>Deutsch</span><span title="Diese Übersetzung ist Teil eines Experiments."><span class="icon icon-experimental "></span></span></a></li><li class=" "><a data-locale="fr" href="/fr/docs/Web/API/Navigator/connection" class="button submenu-item"><span>Français</span></a></li><li class=" "><a data-locale="ja" href="/ja/docs/Web/API/Navigator/connection" class="button submenu-item"><span>日本語</span></a></li><li class=" "><a data-locale="ru" href="/ru/docs/Web/API/Navigator/connection" class="button submenu-item"><span>Русский</span></a></li><li class=" "><a data-locale="zh-CN" href="/zh-CN/docs/Web/API/Navigator/connection" class="button submenu-item"><span>中文 (简体)</span></a></li></ul></div></div></li></ul></div></div></div></div><div class="main-wrapper"><div class="sidebar-container"><aside id="sidebar-quicklinks" class="sidebar" data-macro="APIRef"><button type="button" class="button action backdrop" aria-label="Collapse sidebar"><span class="button-wrap"></span></button><nav aria-label="Related Topics" class="sidebar-inner"><header class="sidebar-actions"><section class="sidebar-filter-container"><div class="sidebar-filter "><label id="sidebar-filter-label" class="sidebar-filter-label" for="sidebar-filter-input"><span class="icon icon-filter"></span><span class="visually-hidden">Filter sidebar</span></label><input id="sidebar-filter-input" autoComplete="off" class="sidebar-filter-input-field false" type="text" placeholder="Filter" value=""/><button type="button" class="button action has-icon clear-sidebar-filter-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear filter input</span></span></button></div></section></header><div class="sidebar-inner-nav"><div class="in-nav-toc"><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In this article</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#value">Value</a></li><li class="document-toc-item "><a class="document-toc-link" href="#specifications">Specifications</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser_compatibility">Browser compatibility</a></li><li class="document-toc-item "><a class="document-toc-link" href="#see_also">See also</a></li></ul></section></div></div><div class="sidebar-body"><ol><li class="section"><a href="/en-US/docs/Web/API/Network_Information_API">Network Information API</a></li><li class="section"><a href="/en-US/docs/Web/API/Navigator"><code>Navigator</code></a></li><li class="toggle"><details open=""><summary>Instance properties</summary><ol><li><a href="/en-US/docs/Web/API/Navigator/activeVRDisplays"><code>activeVRDisplays</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/appCodeName"><code>appCodeName</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/appName"><code>appName</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/appVersion"><code>appVersion</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/bluetooth"><code>bluetooth</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/buildID"><code>buildID</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/clipboard"><code>clipboard</code></a></li><li><em><code>connection</code> </em></li><li><a href="/en-US/docs/Web/API/Navigator/contacts"><code>contacts</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/cookieEnabled"><code>cookieEnabled</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/credentials"><code>credentials</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/deviceMemory"><code>deviceMemory</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/doNotTrack"><code>doNotTrack</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/geolocation"><code>geolocation</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/globalPrivacyControl"><code>globalPrivacyControl</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/gpu"><code>gpu</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/hardwareConcurrency"><code>hardwareConcurrency</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/hid"><code>hid</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/ink"><code>ink</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/keyboard"><code>keyboard</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/language"><code>language</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/languages"><code>languages</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/locks"><code>locks</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/login"><code>login</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/maxTouchPoints"><code>maxTouchPoints</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/mediaCapabilities"><code>mediaCapabilities</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/mediaDevices"><code>mediaDevices</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/mediaSession"><code>mediaSession</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/mimeTypes"><code>mimeTypes</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/onLine"><code>onLine</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/oscpu"><code>oscpu</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/pdfViewerEnabled"><code>pdfViewerEnabled</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/permissions"><code>permissions</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/platform"><code>platform</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/plugins"><code>plugins</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/presentation"><code>presentation</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/product"><code>product</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/productSub"><code>productSub</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/scheduling"><code>scheduling</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/serial"><code>serial</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/serviceWorker"><code>serviceWorker</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/storage"><code>storage</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/usb"><code>usb</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/userActivation"><code>userActivation</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/userAgent"><code>userAgent</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/userAgentData"><code>userAgentData</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/vendor"><code>vendor</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/vendorSub"><code>vendorSub</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/virtualKeyboard"><code>virtualKeyboard</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/wakeLock"><code>wakeLock</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/webdriver"><code>webdriver</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/windowControlsOverlay"><code>windowControlsOverlay</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/xr"><code>xr</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li></ol></details></li><li class="toggle"><details open=""><summary>Instance methods</summary><ol><li><a href="/en-US/docs/Web/API/Navigator/canShare"><code>canShare()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/clearAppBadge"><code>clearAppBadge()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/deprecatedReplaceInURN"><code>deprecatedReplaceInURN()</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/getAutoplayPolicy"><code>getAutoplayPolicy()</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/getBattery"><code>getBattery()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/getGamepads"><code>getGamepads()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/getInstalledRelatedApps"><code>getInstalledRelatedApps()</code></a><abbr class="icon icon-experimental" title="Experimental. Expect behavior to change in the future."> <span class="visually-hidden">Experimental</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/getUserMedia"><code>getUserMedia()</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/getVRDisplays"><code>getVRDisplays()</code></a><abbr class="icon icon-nonstandard" title="Non-standard. Check cross-browser support before using."> <span class="visually-hidden">Non-standard</span> </abbr><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/javaEnabled"><code>javaEnabled()</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/registerProtocolHandler"><code>registerProtocolHandler()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/requestMediaKeySystemAccess"><code>requestMediaKeySystemAccess()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/requestMIDIAccess"><code>requestMIDIAccess()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/sendBeacon"><code>sendBeacon()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/setAppBadge"><code>setAppBadge()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/share"><code>share()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/taintEnabled"><code>taintEnabled()</code></a><abbr class="icon icon-deprecated" title="Deprecated. Not for use in new websites."> <span class="visually-hidden">Deprecated</span> </abbr></li><li><a href="/en-US/docs/Web/API/Navigator/unregisterProtocolHandler"><code>unregisterProtocolHandler()</code></a></li><li><a href="/en-US/docs/Web/API/Navigator/vibrate"><code>vibrate()</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Related pages for Network Information API</summary><ol><li><a href="/en-US/docs/Web/API/NetworkInformation"><code>NetworkInformation</code></a></li><li><a href="/en-US/docs/Web/API/WorkerNavigator/connection"><code>WorkerNavigator.connection</code></a></li></ol></details></li></ol></div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In this article</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#value">Value</a></li><li class="document-toc-item "><a class="document-toc-link" href="#specifications">Specifications</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser_compatibility">Browser compatibility</a></li><li class="document-toc-item "><a class="document-toc-link" href="#see_also">See also</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="en-US"><header><h1>Navigator: connection property</h1><details class="baseline-indicator not"><summary><span class="indicator" role="img" aria-label="Baseline Cross"></span><h2><span class="not-bold">Limited availability</span></h2><div class="browsers"><span class="engine" title="Supported in Chrome, and not widely supported in Edge"><span class="browser chrome supported" role="img" aria-label="Chrome check"></span><span class="browser edge " role="img" aria-label="Edge cross"></span></span><span class="engine" title="Not widely supported in Firefox"><span class="browser firefox " role="img" aria-label="Firefox cross"></span></span><span class="engine" title="Not widely supported in Safari"><span class="browser safari " role="img" aria-label="Safari cross"></span></span></div><span class="icon icon-chevron "></span></summary><div class="extra"><p>This feature is not Baseline because it does not work in some of the most widely-used browsers.</p><ul><li><a href="/en-US/docs/Glossary/Baseline/Compatibility" data-glean="baseline_link_learn_more" target="_blank" class="learn-more">Learn more</a></li><li><a href="#browser_compatibility" data-glean="baseline_link_bcd_table">See full compatibility</a></li><li><a href="https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Fen-US%2Fdocs%2FWeb%2FAPI%2FNavigator%2Fconnection&level=not" data-glean="baseline_link_feedback" class="feedback-link" target="_blank" rel="noreferrer">Report feedback</a></li></ul></div></details></header><div class="section-content"><p>The <strong><code>connection</code></strong> read-only property of the <a href="/en-US/docs/Web/API/Navigator"><code>Navigator</code></a> interface returns a <a href="/en-US/docs/Web/API/NetworkInformation"><code>NetworkInformation</code></a> object containing information about the system's connection, such as the current bandwidth of the user's device or whether the connection is metered.</p> <p>This could be used to select high definition content or low definition content based on the user's connection.</p></div><section aria-labelledby="value"><h2 id="value"><a href="#value">Value</a></h2><div class="section-content"><p>A <a href="/en-US/docs/Web/API/NetworkInformation"><code>NetworkInformation</code></a> object.</p></div></section><h2 id="specifications"><a href="#specifications">Specifications</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://wicg.github.io/netinfo/#connection-attribute">Network Information API <br/><small># connection-attribute</small></a></td></tr></tbody></table><h2 id="browser_compatibility"><a href="#browser_compatibility">Browser compatibility</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="see_also"><h2 id="see_also"><a href="#see_also">See also</a></h2><div class="section-content"><ul> <li><a href="/en-US/docs/Web/API/Navigator/onLine">Online and offline events</a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" fill="#fff"><path d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 23.86c5.819 9.579 9.269 20.318 10.083 31.385a69.85 69.85 0 0 1-5.387 32.44c-4.358 10.272-11.115 19.443-19.747 26.801-8.632 7.359-18.908 12.709-30.034 15.637l-6.17-21.698c7.666-2.017 14.746-5.703 20.694-10.773 5.948-5.071 10.603-11.389 13.606-18.467a48.14 48.14 0 0 0 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Content available under <a href="/en-US/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/en-US/docs/Web/API/Navigator/connection","doc":{"isMarkdown":true,"isTranslated":false,"isActive":true,"flaws":{},"title":"Navigator: connection property","mdn_url":"/en-US/docs/Web/API/Navigator/connection","locale":"en-US","native":"English (US)","browserCompat":["api.Navigator.connection"],"baseline":{"baseline":false,"support":{"chrome":"67","chrome_android":"67"}},"sidebarHTML":"<ol><li class=\"section\"><a href=\"/en-US/docs/Web/API/Network_Information_API\">Network Information API</a></li><li class=\"section\"><a href=\"/en-US/docs/Web/API/Navigator\"><code>Navigator</code></a></li><li class=\"toggle\"><details open=\"\"><summary>Instance properties</summary><ol><li><a href=\"/en-US/docs/Web/API/Navigator/activeVRDisplays\"><code>activeVRDisplays</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/appCodeName\"><code>appCodeName</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/appName\"><code>appName</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/appVersion\"><code>appVersion</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/bluetooth\"><code>bluetooth</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/buildID\"><code>buildID</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/clipboard\"><code>clipboard</code></a></li><li><em><code>connection</code> </em></li><li><a href=\"/en-US/docs/Web/API/Navigator/contacts\"><code>contacts</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/cookieEnabled\"><code>cookieEnabled</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/credentials\"><code>credentials</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/deviceMemory\"><code>deviceMemory</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/doNotTrack\"><code>doNotTrack</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/geolocation\"><code>geolocation</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/globalPrivacyControl\"><code>globalPrivacyControl</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/gpu\"><code>gpu</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/hardwareConcurrency\"><code>hardwareConcurrency</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/hid\"><code>hid</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/ink\"><code>ink</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/keyboard\"><code>keyboard</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/language\"><code>language</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/languages\"><code>languages</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/locks\"><code>locks</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/login\"><code>login</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/maxTouchPoints\"><code>maxTouchPoints</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/mediaCapabilities\"><code>mediaCapabilities</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/mediaDevices\"><code>mediaDevices</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/mediaSession\"><code>mediaSession</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/mimeTypes\"><code>mimeTypes</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/onLine\"><code>onLine</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/oscpu\"><code>oscpu</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/pdfViewerEnabled\"><code>pdfViewerEnabled</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/permissions\"><code>permissions</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/platform\"><code>platform</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/plugins\"><code>plugins</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/presentation\"><code>presentation</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/product\"><code>product</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/productSub\"><code>productSub</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/scheduling\"><code>scheduling</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/serial\"><code>serial</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/serviceWorker\"><code>serviceWorker</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/storage\"><code>storage</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/usb\"><code>usb</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/userActivation\"><code>userActivation</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/userAgent\"><code>userAgent</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/userAgentData\"><code>userAgentData</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/vendor\"><code>vendor</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/vendorSub\"><code>vendorSub</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/virtualKeyboard\"><code>virtualKeyboard</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/wakeLock\"><code>wakeLock</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/webdriver\"><code>webdriver</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/windowControlsOverlay\"><code>windowControlsOverlay</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/xr\"><code>xr</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Instance methods</summary><ol><li><a href=\"/en-US/docs/Web/API/Navigator/canShare\"><code>canShare()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/clearAppBadge\"><code>clearAppBadge()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/deprecatedReplaceInURN\"><code>deprecatedReplaceInURN()</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/getAutoplayPolicy\"><code>getAutoplayPolicy()</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/getBattery\"><code>getBattery()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/getGamepads\"><code>getGamepads()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/getInstalledRelatedApps\"><code>getInstalledRelatedApps()</code></a><abbr class=\"icon icon-experimental\" title=\"Experimental. Expect behavior to change in the future.\">\n <span class=\"visually-hidden\">Experimental</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/getUserMedia\"><code>getUserMedia()</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/getVRDisplays\"><code>getVRDisplays()</code></a><abbr class=\"icon icon-nonstandard\" title=\"Non-standard. Check cross-browser support before using.\">\n <span class=\"visually-hidden\">Non-standard</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/javaEnabled\"><code>javaEnabled()</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/registerProtocolHandler\"><code>registerProtocolHandler()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/requestMediaKeySystemAccess\"><code>requestMediaKeySystemAccess()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/requestMIDIAccess\"><code>requestMIDIAccess()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/sendBeacon\"><code>sendBeacon()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/setAppBadge\"><code>setAppBadge()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/share\"><code>share()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/taintEnabled\"><code>taintEnabled()</code></a><abbr class=\"icon icon-deprecated\" title=\"Deprecated. Not for use in new websites.\">\n <span class=\"visually-hidden\">Deprecated</span>\n</abbr></li><li><a href=\"/en-US/docs/Web/API/Navigator/unregisterProtocolHandler\"><code>unregisterProtocolHandler()</code></a></li><li><a href=\"/en-US/docs/Web/API/Navigator/vibrate\"><code>vibrate()</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Related pages for Network Information API</summary><ol><li><a href=\"/en-US/docs/Web/API/NetworkInformation\"><code>NetworkInformation</code></a></li><li><a href=\"/en-US/docs/Web/API/WorkerNavigator/connection\"><code>WorkerNavigator.connection</code></a></li></ol></details></li></ol>","sidebarMacro":"APIRef","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p>The <strong><code>connection</code></strong> read-only property of the <a href=\"/en-US/docs/Web/API/Navigator\"><code>Navigator</code></a> interface returns a <a href=\"/en-US/docs/Web/API/NetworkInformation\"><code>NetworkInformation</code></a> object containing information about the system's connection, such as the current bandwidth of the user's device or whether the connection is metered.</p>\n<p>This could be used to select high definition content or low definition content based on the user's connection.</p>"}},{"type":"prose","value":{"id":"value","title":"Value","isH3":false,"content":"<p>A <a href=\"/en-US/docs/Web/API/NetworkInformation\"><code>NetworkInformation</code></a> object.</p>"}},{"type":"specifications","value":{"title":"Specifications","id":"specifications","isH3":false,"specifications":[{"bcdSpecificationURL":"https://wicg.github.io/netinfo/#connection-attribute","title":"Network Information API"}],"query":"api.Navigator.connection"}},{"type":"browser_compatibility","value":{"title":"Browser compatibility","id":"browser_compatibility","isH3":false,"query":"api.Navigator.connection"}},{"type":"prose","value":{"id":"see_also","title":"See also","isH3":false,"content":"<ul>\n <li><a href=\"/en-US/docs/Web/API/Navigator/onLine\">Online and offline events</a></li>\n</ul>"}}],"toc":[{"text":"Value","id":"value"},{"text":"Specifications","id":"specifications"},{"text":"Browser compatibility","id":"browser_compatibility"},{"text":"See also","id":"see_also"}],"summary":"The connection read-only property of the Navigator interface returns a NetworkInformation object containing information about the system's connection, such as the current bandwidth of the user's device or whether the connection is metered.","popularity":0.002,"modified":"2024-03-30T00:55:27.000Z","other_translations":[{"locale":"de","title":"Navigator: connection-Eigenschaft","native":"Deutsch"},{"locale":"fr","title":"Navigator.connection","native":"Français"},{"locale":"ja","title":"Navigator: connection プロパティ","native":"日本語"},{"locale":"ru","title":"NetworkInformation.connection","native":"Русский"},{"locale":"zh-CN","title":"Navigator：connection 属性","native":"中文 (简体)"}],"pageType":"web-api-instance-property","source":{"folder":"en-us/web/api/navigator/connection","github_url":"https://github.com/mdn/content/blob/main/files/en-us/web/api/navigator/connection/index.md","last_commit_url":"https://github.com/mdn/content/commit/8bb6752a4d3ed3d54ab681636d16602e6bf1d74d","filename":"index.md"},"short_title":"connection","parents":[{"uri":"/en-US/docs/Web","title":"References"},{"uri":"/en-US/docs/Web/API","title":"Web APIs"},{"uri":"/en-US/docs/Web/API/Navigator","title":"Navigator"},{"uri":"/en-US/docs/Web/API/Navigator/connection","title":"connection"}],"pageTitle":"Navigator: connection property - Web APIs | MDN","noIndexing":false}}</script></body></html>