15,769,866 websites in the live index use HTTP/3 as of October 2026. Download the full list of HTTP/3 websites with website, company, country and language.
HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
As of October 21, 2026, TechLeads detects HTTP/3 on 15,769,866 websites.
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TechLeads. "Companies Using HTTP/3." Data as of October 21, 2026. https://techleads.fyi/technology/http-3HTML link
<a href="https://techleads.fyi/technology/http-3">Companies using HTTP/3 (TechLeads data)</a>Sample results for HTTP/3
| Rank | Icon | Website | Title | Description | Company | Country | Language |
|---|---|---|---|---|---|---|---|
| #18 | Blog Tool, Publishing Platform, and CMS – WordPress.org | Open source software which you can use to easily create a beautiful website, blog, or app. | WordPress | - | - | ||
| #98 | URL Shortener, Branded Short Links & Analytics | TinyURL | - | - | - | - | ||
| #162 | About Google: Our products, technology and company information - About Google | Learn more about Google. Explore our innovative AI products and services, and discover how we | About Google | - | - | ||
| #183 | UNPKG | The CDN for everything on npm | - | - | - | ||
| #197 | OpenAI acquires Rockset | OpenAI | OpenAI Acquires Rockset | - | - | - | ||
| #201 | Moz logo | Improve your local SEO strategy with an all-in-one solution to manage listings, audit performance, and boost traffic. Monitor your listing health, increase visibility, and drive more traffic with Moz’s local SEO tool. | - | - | - | ||
| #211 | Pixabay - Russia No Access | - | - | - | - | ||
| #243 | Example Domain | - | - | - | - | ||
| #273 | Zurret | Hier verlinke ich Seiten die offiziell mit mir zutun haben. | - | - | - | ||
| #309 | Slack | Connect faster with Slack’s video meeting platform. Start a video chat, share screens, and collaborate in one virtual meeting app and online tool today. | - | - | - | ||
| #320 | Google Safety Center - Stay Safer Online | Making technology for everyone means protecting everyone who uses it. Explore what Google does to help you stay safe online. | Safety | - | en | ||
| #324 | Love Express #TheSocialEventExpert | Peatix | Join us for fun and exciting dating events designed specifically for singles to know each ... powered by Peatix : More than a ticket. | - | - | - | ||
| #326 | zio.no - Domain configured to handle links from cutt.ly — Link Management Platform | Create branded short links with Cuttly’s custom domain feature. Boost your brand visibility and track link performance with powerful analytics using your own domain like zio.no. | - | - | - | ||
| #333 | Schema.org - Schema.org | Schema.org is a set of extensible schemas that enables webmasters to embed structured data on their web pages for use by search engines and other applications. | Schema.org Community Group | - | - | ||
| #395 | Stay ahead of the curve with Feedly AI | Welcome to Feedly — the platform where businesses and curious minds stay ahead of the curve! We | - | - | - | ||
| #399 | Gizmodo en Français | Dive into cutting-edge tech, reviews and the latest trends with the expert team at Gizmodo. Your ultimate source for all things tech. | Gizmodo | - | - | ||
| #460 | ツバメ堂 / zbame lit.link | 型染版画と半襟や帯、ハンカチなど | - | - | - | ||
| #518 | Politik 💬 Propagandist.in (@politik@mastodon.social) - Mastodon | - | - | - | - | ||
| #537 | web.dev | Guidance to build modern web experiences that work on any browser. | web.dev | - | - | ||
| #544 | teenage engineering - teenage engineering | teenage engineering creates high quality, well designed, electronic products for all people who love sound and music. | - | - | - | ||
| #674 | Boing Boing Video Archives - Boing Boing | - | Happy Mutants, LLC. | - | - | ||
| #678 | nowości ze świata IT – newsblog.pl | .st1{display:none}wiadomości .st1{display:none}technologia .st1{display:none}systemy | newsblog.pl | - | - | ||
| #720 | National Academy of Medicine | Advancing Health Care | NAM | NAM advances science, informs policy, and catalyzes action to achieve human health, equity, and well-being. | Social Driver | US | en | ||
| #737 | General Data Protection Regulation (GDPR) Compliance Guidelines | The EU General Data Protection Regulation went into effect on May 25, 2018, replacing the Data Protection Directive 95/46/EC. Designed to increase data privacy for EU citizens, the regulation levies steep fines on organizations that don’t follow the law. | GDPR.eu | - | - | ||
| #752 | YouTube Research - Home | Learn more about how YouTube is equipping researchers from around the world with data to advance the public’s understanding of our platform | YouTube | - | en |
TechLeads scans public websites and identifies HTTP/3 from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily; this page uses data from October 21, 2026. Counts only include websites we have scanned, so they can differ from other providers.
Complete HTTP/3 website dataset in CSV. One-time purchase.
Secure checkout · 7-day download accessHTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
Our comprehensive database contains 15,769,866 websites using HTTP/3, making it the most complete HTTP/3 sites list available. This HTTP/3 customer websites directory helps businesses detect websites using HTTP/3 and identify potential leads.
Our HTTP/3 technology detection system scans millions of websites to identify those powered by HTTP/3. This list of sites with HTTP/3 includes detailed information such as company names, contact details, social media profiles, and website rankings. Whether you're looking for top websites with HTTP/3 or exploring HTTP/3 adoption trends, our database provides comprehensive insights.
Each entry in our HTTP/3 sites list includes valuable data points: domain name, global ranking, company information, contact details, social media links. This makes it easy to detect websites using HTTP/3 and reach out to potential customers or partners.
Get instant access to the full list of sites with HTTP/3 in CSV format. Our dataset includes all 15,769,866 HTTP/3 customer websites with complete contact information, perfect for lead generation, market research, and competitive analysis. The data is regularly updated to ensure accuracy and includes the latest HTTP/3 powered websites.