Websites Using Google Analytics 4

Google Analytics 4 (GA4) is Google's event-based web and app analytics platform, the default analytics tag on a large share of the web.

9,737,326 sites detected across 129,313,463 indexed domains refreshed monthly · August 2026

The source-code fingerprint

gtag/js?id=G- Search all 9,737,326 results →

Pages load the GA4 library from googletagmanager.com/gtag/js?id=G-XXXXXXXXXX, so the string gtag/js?id=G- appears in the source of any site running a GA4 measurement ID.

Likely false positives: Also matched on sites that load gtag purely for Google Ads (AW-), the id=G- prefix keeps this specific to GA4 properties.

Example websites using Google Analytics 4

These domains all contain the gtag/js?id=G- fingerprint in their homepage source right now. A match is a verified substring of the live page, so confidence is high, the false positives noted above are the main caveat.

support.google.com ...JLN"></script><script src="https://www.googletagmanager.com/gtag/js?id=G-H30R9PNQFN" async="" nonce="qIypprnYk88BxBK6VJLN"></script><...
creativecommons.org ...hts.com/ -->\n\t\t\t\t\t\t\t<script src="//www.googletagmanager.com/gtag/js?id=G-J83GSCH0LS" data-cfasync="false" data-wpfc-render="false" t...
www.researchgate.net ...ync = 1;\n script.src = 'https://www.googletagmanager.com/gtag/js?id=G-4P31SJ70EJ';\n var referenceNode = document.getElementsByT...
about.me ...ics -->\n<script async src="https://www.googletagmanager.com/gtag/js?id=G-LE3EMX7RDC"></script>\n<script>\n window.dataLayer = window...
stackoverflow.com ... <script async src="https://www.googletagmanager.com/gtag/js?id=G-WCZ03SZFCQ"></script>\n <script>\n w...
transparencyreport.google.com .../script><script async src="https://www.googletagmanager.com/gtag/js?id=G-XQYF1YFYZF" nonce="j3fJOwcL_NRO1TEfj5e2yw"></script><script ...
lnk.bio ...>\n\t\t\t\t\t\t<script async src="https://www.googletagmanager.com/gtag/js?id=G-N2VNE35MLW"></script>\n\t\t\t<script>\n\t\t\t\tconst cleanPath = wind...
www.fda.gov ...f-8" />\n<script async src="https://www.googletagmanager.com/gtag/js?id=G-273DTKB5QW"></script>\n<link rel="canonical" href="https://ww...
lifehacker.com ...ipt>\n\n\n\n<script async src="https://www.googletagmanager.com/gtag/js?id=G-7E851STSQZ"></script>\n<script>\n window.dataLayer = window...
metro.co.uk ... -->\n\t\t\t<script async src="https://www.googletagmanager.com/gtag/js?id=G-MYFQ9GLWWV"></script>\n\t\t\t<script>\n\t\t\twindow.metro = window.m...
www.acm.org ...t>\r\n\r\n <script async src="https://www.googletagmanager.com/gtag/js?id=G-RX448GM2EK"></script>\r\n <script>\r\n window.dataLayer = wi...
caniuse.com ...ript>\n\t\n<script async src="https://www.googletagmanager.com/gtag/js?id=G-8SCDSGDGKM"></script>\n<script>\n window.dataLayer = window.d...
mashable.com ... <script async src="https://www.googletagmanager.com/gtag/js?id=G-BPBF083TYP"></script>\n<script>\n window.globalGAInfo = {"p...
csrc.nist.gov ...> \r\n <script async src="https://www.googletagmanager.com/gtag/js?id=G-TSQ0PLGJZP"></script> \r\n <script> window.dataLayer = ...
www.aljazeera.com ...165"></script><script async src="//www.googletagmanager.com/gtag/js?id=G-XN9JB9Q0M1"></script><script async src="//static.chartbeat.c...
www.pewresearch.org ...id="google_gtagjs-js" src="https://www.googletagmanager.com/gtag/js?id=G-JWLCYL52TJ" async></script>\n<script id="google_gtagjs-js-aft...
www.fbi.gov ...s) -->\r\n<script async src="https://www.googletagmanager.com/gtag/js?id=G-DBEM2FVVRF"></script>\r\n<script>\r\n window.dataLayer = window...
www.producthunt.com ...><link rel="preload" href="https://www.googletagmanager.com/gtag/js?id=G-WZ46833KH9" as="script"/><meta name="theme-color" content="#...
www.snapchat.com ...elmet="true" async="" src="https://www.googletagmanager.com/gtag/js?id=G-DPDHJB4310"></script><script data-react-helmet="true">\n w...
jsfiddle.net ...js) -->\n<script async src="https://www.googletagmanager.com/gtag/js?id=G-DG76L8EKG3"></script>\n<script>\n window.dataLayer = window.d...
people.eecs.berkeley.edu ...js) --> <script async src="https://www.googletagmanager.com/gtag/js?id=G-LC250GQGVR"></script> <script> window.dataLayer = window.dat...
cutt.ly ....com">\r\n<script data-src="https://www.googletagmanager.com/gtag/js?id=G-EYXHB4M7KS" type="text/plain" data-cookiecategory="analytics...
www.mapbox.com ... -->\n<script async="" src="https://www.googletagmanager.com/gtag/js?id=G-K0D3QK4GKE"></script>\n<script>\n window.dataLayer = window.d...
enterprisemarketingportal.google .../script><script async src="https://www.googletagmanager.com/gtag/js?id=G-V9KKCT1BF9" nonce="YlWSoFyfdN8wNnuQ6Ifs9A"></script><script ...
webaim.org ...log">\n\n\t<script async src="https://www.googletagmanager.com/gtag/js?id=G-Y41PF8WV9X"></script>\n\t<script>\n \twindow.dataLayer = window...
pagespeed.web.dev ....js) --><script async src="https://www.googletagmanager.com/gtag/js?id=G-S8N9N15MT1" id="bw-ga" nonce="lKOjTxGLXsBoZVVKr9uLYw"></scri...
nvd.nist.gov ...s) -->\r\n<script async src="https://www.googletagmanager.com/gtag/js?id=G-4KKFZP12LQ"></script>\r\n\r\n\r\n<style id="antiClickjack">\r\nbody>...
openid.net ...id="google_gtagjs-js" src="https://www.googletagmanager.com/gtag/js?id=G-NF8HNLNJJE" async></script>\n<script id="google_gtagjs-js-aft...
gamehistory.org ...id="google_gtagjs-js" src="https://www.googletagmanager.com/gtag/js?id=G-4ZPZBFRVR6" async></script>\n<script id="google_gtagjs-js-aft...
pastebin.com ... <script async src="https://www.googletagmanager.com/gtag/js?id=G-S72LBY47R8"></script>\n <script>\n window.dataLayer = ...

Showing 30 of 9,737,326 matching sites. Open the full ranked list, inspect the matched source, and export the domain list →

Related technologies

Google Tag Manager Universal Analytics Google Ads Facebook Pixel

How this works

SearchWebCode indexes the raw HTML, CSS and JavaScript source of public web pages. To find sites using Google Analytics 4 we match the literal fingerprint gtag/js?id=G-, the code Google Analytics 4 ships, against that index, then verify each match against the raw source. Counts reflect the current index (129,313,463 domains, refreshed monthly, last built August 2026) and grow as we scale toward the whole web. Run the search yourself to see every match, view the full page source for any result, filter by TLD or regex, and export the domain list.

Comparing adoption across tools? The Web Technology Adoption Report ranks the most common tags in the index side by side.