Updated

Technology · Other

HTTP/3

httpwg.org

HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.

HTTP/3 belongs toMiscellaneouscategory.

858websites

use it — 33.6% of the 2,555 websites we scanned in the last 12 months

#3of 34

tools in its category seen in our scans (we recognize 141)

311public pages

on UptimeCard — open any of them to see how that site is doing

Used on 33.6% of the websites we scan — and those sites load in 4.3 s, about the same as every other site (4.3 s). Installing it does not make a site noticeably slower.

35.64% of all websites we track run HTTP/3▲ 0.02 points since 20 Sep

At a glance

UptimeCard's own scans and tests of 2,555 websites · refreshed weekly

How HTTP/3 sites scoreout of 100 · hover or tap a score for details

50PerformanceLowaverage site: 5090AccessibilityGoodaverage site: 8993Best practicesGoodaverage site: 9392SEOGoodaverage site: 92

Page load time

Loads about as fast as the average site

HTTP/3 sites
4.3 s
All sites
4.3 s

Most HTTP/3 sites load in 3.1–6.6 s. Home page weight: 3.2 MB vs 3.3 MB for all sites. 286 public sites measured.

Where are they hosted?

Mostly Cloudflare and Amazon Web Services

  • Cloudflare49%
  • Amazon Web Services18%
  • Google Cloud7%
  • Fastly2%
  • Other24%
United States 56%Canada 24%Netherlands 4%

Who uses it?

Technology and Software is the biggest group

Technology and Software57%
Business Services13%
Software as a Service (SaaS)7%
Educational Resources4%

Share of 311 classified public sites. “× average” compares with all 961 public sites.

How HTTP/3 sites are built

Stacks we see most. Tools that tend to run together with HTTP/3 on the same websites. The percentage is the share of all 858 HTTP/3 sites that run the whole stack.

6 stacks · swipe, drag or use the arrows
#1

HTTP/3 + Cloudflare + HubSpot CMS Hub

5.9%51 of 858 sites
#2

HTTP/3 + Cloudflare + jsDelivr + Webflow + Google Hosted Libraries

2.8%24 of 858 sites
#3

HTTP/3 + Cloudflare + AngularJS

3.6%31 of 858 sites
#4

HTTP/3 + Cloudflare + Google Cloud

3%26 of 858 sites
#5

HTTP/3 + Elementor + RankMath SEO

2.4%21 of 858 sites
#6

HTTP/3 + Elementor + Site Kit

2.1%18 of 858 sites

Usually installed alongside

The bigger the bubble, the more of the 858 HTTP/3 sites also run the tool. Colour shows what the tool does. Hover or tap a bubble for details.

Google Tag Manager56%Google Analytics55%Linkedin Insight Tag18%Facebook Pixel17%HubSpot15%OneTrust14%Microsoft Advertising12%DoubleClick Floodlight11%Yoast SEO10%Webflow9%
Tag managerAnalyticsMarketingCookie consentAdvertisingSearch visibilityPage builder

Similar tools in its category

Miscellaneous: 141 tools known, 34 seen in our scans

Open Graph1,524 sitesAlternativeWebpack938 sitesAlternativeModule Federation624 sitesAlternativePWA489 sitesAlternativeRSS322 sitesAlternativePopper73 sitesAlternativeLottieFiles67 sitesAlternativePyScript59 sitesAlternativeGoogle Cloud Storage7 sitesUsed together

How websites combine HTTP/3 with other tools

Relationships found on the websites that use it, from the same map status pages show.

Built on a platform 109Complements another tool 47Integrates with another 45Needs another tool 16

Websites using HTTP/3

858 websites use HTTP/3: 33.6% of the 2,555 websites we scanned in the last 12 months. A selection is shown below.

Scores are out of 100: P Performance · A Accessibility · B Best practices · S SEO. Green 80+, yellow 65–79, orange 50–64, red below 50. The dot shows whether our last scan found the site failing (red) or not (green); Red, amber or blue: an active incident on the site's status page (outage, degraded, maintenance) or a failing scan; amber also means a certificate ending within 30 days. Hover the dot for details.

Questions about HTTP/3

How many websites use HTTP/3?
We found HTTP/3 on 858 of the 2,555 websites we scanned in the last 12 months (33.6%). 311 of them have a public status page.
What is HTTP/3 often used with?
Among the websites we scan, HTTP/3 is often found alongside Cloudflare (65.4% of its sites), Cloudflare Bot Management (23.2% of its sites), jsDelivr (16.6% of its sites).
What are the alternatives to HTTP/3?
Other miscellaneous tools we recognize include Open Graph, Webpack, Module Federation, PWA.

Is your website built with HTTP/3?

UptimeCard checks it around the clock, tells you the minute it stops answering, and gives your visitors a status page.

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