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Sites using HTTP/3

25,145 launches via launch platforms Category: Protocol Tracked since Apr 2026 Last seen: Jul 18, 2026 Website: cloudflare.com

HTTP/3 over QUIC support, advertised via the Alt-Svc response header. Common signal: large CDNs (Cloudflare, Fastly, Vercel, Akamai) all advertise h3 on every response. Surfaced as a top row on the /trends chart.

Found via: Product Hunt 20,581 · Hacker News 1,996 · PeerPush 2,560 · Other 26 · StackScope Discovery (Indie) 8,053 · StackScope Wider Web 27,210

Last 7 days 42.9% +1.9pp
Most used with Cloudflare, Google Search Console, Cloudflare DNS
Top product types Productivity, Developer Tools, AI
Green hosting 81% vs 44% avg

HTTP/3 has been detected on 25,145 launches we've crawled, with 4445 of those in July 2026 (41.7% of the month's launches so far). The 7-day rolling share is 42.9%, up 1.9 percentage points from last week. Most recent detection: Kosuke Pentest, today.

It's most commonly paired with Cloudflare, Google Search Console, and Cloudflare DNS. By product type, the launches using it are most often Productivity (17%), Developer Tools (15%), and AI (12%). By estimated origin, the United States (22%) and India (18%) lead close together. By domain ending, launches using it are 1.7 times as likely as the average launch to live on a .tools domain. The 25,144 scored launches using HTTP/3 average a StackScope score of 6.6 out of 10, against 6.3 across all launches we score.

What kind of products ship with HTTP/3

18,473 launches

Productivity
16.88%
AI
12.37%
Marketing
10.83%
Finance
8.25%
Health
6.25%
Content
5.68%
Education
5.12%
Games
4.04%
Design
3.61%
Hiring & HR
3.43%
Social
3.31%
Directory
1.95%
Crypto
1.85%
E-commerce
1.79%

Countries that use HTTP/3

Estimated origin for 7,957 of 25,145 launches

  • United States United States 22.08%
  • India India 18.29%
  • United Kingdom United Kingdom 8.46%
  • China China 3.62%
  • Canada Canada 3.56%
  • Germany Germany 3.37%
  • France France 2.79%
  • Netherlands Netherlands 2.53%
  • Australia Australia 2.44%
  • Brazil Brazil 2.27%
  • South Korea South Korea 1.65%
  • Spain Spain 1.55%
  • Türkiye Türkiye 1.53%
  • Italy Italy 1.37%
  • United Arab Emirates United Arab Emirates 1.31%

Share of new launches using HTTP/3

Each dot is one launch day. Line is the 7-day rolling average.

42.9%
last 7 days
+1.9pp vs prior week
41.7%
July so far
4,445 of 10,662 launches
25,145
launches all time
since Apr 2026
HTTP/3 daily detection trend 58% 29% 0% May Jun Jul Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery. Apr 19 · 151 / 392 = 38.5% Apr 20 · 246 / 620 = 39.7% Apr 21 · 305 / 835 = 36.5% Apr 22 · 273 / 721 = 37.9% Apr 23 · 229 / 603 = 38.0% Apr 24 · 220 / 553 = 39.8% Apr 25 · 182 / 420 = 43.3% Apr 26 · 139 / 377 = 36.9% Apr 27 · 195 / 529 = 36.9% Apr 28 · 321 / 836 = 38.4% Apr 29 · 270 / 658 = 41.0% Apr 30 · 246 / 573 = 42.9% May 1 · 223 / 568 = 39.3% May 2 · 155 / 368 = 42.1% May 3 · 143 / 346 = 41.3% May 4 · 185 / 536 = 34.5% May 5 · 344 / 855 = 40.2% May 6 · 286 / 671 = 42.6% May 7 · 220 / 624 = 35.3% May 8 · 238 / 597 = 39.9% May 9 · 194 / 428 = 45.3% May 10 · 151 / 350 = 43.1% May 11 · 219 / 536 = 40.9% May 12 · 301 / 797 = 37.8% May 13 · 265 / 687 = 38.6% May 14 · 268 / 625 = 42.9% May 15 · 184 / 542 = 33.9% May 16 · 164 / 407 = 40.3% May 17 · 156 / 367 = 42.5% May 18 · 213 / 566 = 37.6% May 19 · 334 / 846 = 39.5% May 20 · 261 / 674 = 38.7% May 21 · 249 / 606 = 41.1% May 22 · 225 / 546 = 41.2% May 23 · 161 / 378 = 42.6% May 24 · 128 / 341 = 37.5% May 25 · 208 / 535 = 38.9% May 26 · 317 / 877 = 36.1% May 27 · 243 / 683 = 35.6% May 28 · 231 / 577 = 40.0% May 29 · 190 / 486 = 39.1% May 30 · 136 / 377 = 36.1% May 31 · 148 / 368 = 40.2% Jun 1 · 270 / 619 = 43.6% Jun 2 · 353 / 927 = 38.1% Jun 3 · 271 / 711 = 38.1% Jun 4 · 241 / 598 = 40.3% Jun 5 · 246 / 578 = 42.6% Jun 6 · 182 / 436 = 41.7% Jun 7 · 160 / 405 = 39.5% Jun 8 · 198 / 511 = 38.7% Jun 9 · 347 / 872 = 39.8% Jun 10 · 292 / 725 = 40.3% Jun 11 · 210 / 573 = 36.6% Jun 12 · 193 / 445 = 43.4% Jun 13 · 171 / 381 = 44.9% Jun 14 · 142 / 346 = 41.0% Jun 15 · 221 / 530 = 41.7% Jun 16 · 399 / 1047 = 38.1% Jun 17 · 369 / 899 = 41.0% Jun 18 · 259 / 672 = 38.5% Jun 19 · 243 / 544 = 44.7% Jun 20 · 181 / 443 = 40.9% Jun 21 · 145 / 384 = 37.8% Jun 22 · 222 / 574 = 38.7% Jun 23 · 381 / 899 = 42.4% Jun 24 · 289 / 739 = 39.1% Jun 25 · 249 / 619 = 40.2% Jun 26 · 221 / 533 = 41.5% Jun 27 · 189 / 433 = 43.6% Jun 28 · 171 / 385 = 44.4% Jun 29 · 230 / 503 = 45.7% Jun 30 · 322 / 803 = 40.1% Jul 1 · 335 / 799 = 41.9% Jul 2 · 229 / 604 = 37.9% Jul 3 · 202 / 498 = 40.6% Jul 4 · 175 / 411 = 42.6% Jul 5 · 159 / 367 = 43.3% Jul 6 · 231 / 552 = 41.8% Jul 7 · 369 / 929 = 39.7% Jul 8 · 317 / 752 = 42.2% Jul 9 · 277 / 688 = 40.3% Jul 10 · 221 / 564 = 39.2% Jul 11 · 183 / 448 = 40.8% Jul 12 · 161 / 397 = 40.6% Jul 13 · 253 / 552 = 45.8% Jul 14 · 358 / 885 = 40.5% Jul 15 · 357 / 738 = 48.4% Jul 16 · 333 / 820 = 40.6% Jul 17 · 285 / 658 = 43.3%
Apr 19, 2026 90 days Jul 17, 2026

How StackScope detects technologies

⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.

Often used with

Tool Launches
Cloudflare 18,354
Google Search Console 16,878
Cloudflare DNS 15,489
Tailwind CSS 11,984
Google Analytics 11,508

Tools most often detected on the same launches as HTTP/3.

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