Websites Powered by WebAssembly
3,032 websites tracked using WebAssembly (Programming languages) · webassembly.org
WebAssembly is a programming language the site's backend is built in. Its official site is webassembly.org. PoweredBy tracks the websites that use WebAssembly across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the programming languages ecosystem.
Usage trend
500
1K
1.5K
Mar 2023
Feb 2024
Dec 2024
Nov 2025
Sep 2026
Domains observed using WebAssembly in each month's HTTP Archive crawl,
Mar 2023 to Sep 2026 · peak 1,350 in Nov 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 2.7 s
INP 125 ms
CLS 0.05
TTFB 600 ms
Median site among 1,230 WebAssembly sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
419
Brazil
403
India
278
United Kingdom
263
Indonesia
239
Germany
235
Canada
229
France
213
Sites using WebAssembly by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Games | 0.06% | 3 |
| Non-profit and religious | 0.01% | 1 |
| Finance and insurance | 0.01% | 2 |
| Sports and fitness | 0.01% | 2 |
| Software and apps | 0.01% | 13 |
| Arts and entertainment | <0.01% | 4 |
| Education | <0.01% | 4 |
| Retail | <0.01% | 9 |
Share of each industry's websites with a detected stack that use WebAssembly; industries come from what sites declare in their own structured data.
Top sites by authority
9+
2% · 9 of 372 sites
8+
<1% · 24 of 7,677 sites
7+
<1% · 40 of 45,712 sites
6+
<1% · 64 of 110,136 sites
5+
<1% · 86 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running WebAssembly in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using WebAssembly
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | google.com | 10.00/10 | 36,639,600 | 1,268,226 | Dec 2023 |
| 2 | github.io | 9.43/10 | 1,800 | 1 | Oct 2023 |
| 3 | spotify.com | 9.40/10 | 2,862,400 | 50,031 | Oct 2023 |
| 4 | qq.com | 9.34/10 | 2,200 | 163 | Jan 2024 |
| 5 | pages.dev | 9.14/10 | - | - | Mar 2025 |
| 6 | bunny.net | 9.13/10 | 61,900 | 3,491 | Oct 2023 |
| 7 | vercel.app | 9.05/10 | - | - | Feb 2024 |
| 8 | ny.gov | 9.04/10 | 675,900 | 50,004 | Oct 2023 |
| 9 | netlify.app | 9.01/10 | 2 | 2 | Oct 2023 |
| 10 | jhu.edu | 8.93/10 | 177,300 | 5,821 | Feb 2026 |
| 11 | huawei.com | 8.89/10 | 52,700 | 5,653 | Oct 2023 |
| 12 | azurewebsites.net | 8.87/10 | - | - | Oct 2023 |
| 13 | bnf.fr | 8.72/10 | 6,300 | 1,597 | Oct 2023 |
| 14 | esa.int | 8.67/10 | 412,100 | 94,679 | Oct 2023 |
| 15 | visa.com | 8.64/10 | 85,600 | 35,622 | Apr 2026 |
| 16 | workers.dev | 8.61/10 | - | - | May 2026 |
| 17 | neocities.org | 8.57/10 | 22,900 | 5,318 | Jan 2025 |
| 18 | sony.com | 8.45/10 | 492,700 | 154,945 | Oct 2023 |
| 19 | gov.hu | 8.44/10 | - | - | Oct 2023 |
| 20 | ncmec.org | 8.30/10 | 39 | 13 | Oct 2023 |
| 21 | dji.com | 8.22/10 | 455,100 | 48,853 | Aug 2025 |
| 22 | uantwerpen.be | 8.06/10 | 2,900 | 2,097 | Oct 2023 |
| 23 | gov.md | 8.03/10 | 2,100 | 76 | Oct 2023 |
| 24 | co.ua | 8.02/10 | - | - | Apr 2025 |
| 25 | uni-rostock.de | 7.99/10 | 290 | 180 | Jan 2024 |
| 26 | uclm.es | 7.96/10 | 950 | 1,486 | Oct 2023 |
| 27 | bitbucket.io | 7.93/10 | - | - | Jun 2024 |
| 28 | duckdb.org | 7.78/10 | 8,200 | 10,265 | Apr 2026 |
| 29 | burningman.org | 7.70/10 | 82,900 | 10,182 | Jul 2025 |
| 30 | cybersource.com | 7.52/10 | 3,300 | 1,107 | Feb 2026 |
| 31 | coreldraw.com | 7.47/10 | 40,600 | 12,691 | Aug 2025 |
| 32 | gi.org | 7.46/10 | 119,000 | 21,186 | Oct 2023 |
| 33 | unideb.hu | 7.43/10 | 78 | 94 | Mar 2025 |
| 34 | nchsoftware.com | 7.34/10 | 31,500 | 15,914 | Apr 2025 |
| 35 | cbn.gov.ng | 7.32/10 | 17,600 | 6,273 | Sep 2026 |
| 36 | nitda.gov.ng | 7.31/10 | 720 | 310 | Aug 2024 |
| 37 | fold.it | 7.12/10 | 650 | 28 | Jun 2026 |
| 38 | ceair.com | 7.10/10 | 5,000 | 3,584 | Oct 2023 |
| 39 | zapto.org | 7.06/10 | 21 | 1 | Dec 2024 |
| 40 | aku.edu | 7.05/10 | 3,000 | 2,580 | Feb 2025 |
| 41 | salvador.ba.gov.br | 6.99/10 | 10 | 11 | Mar 2024 |
| 42 | bookmaker-ratings.ru | 6.98/10 | 66 | 287 | Aug 2026 |
| 43 | softserveinc.com | 6.98/10 | 950 | 1,086 | May 2025 |
| 44 | belfius.be | 6.92/10 | 490 | 331 | Apr 2026 |
| 45 | nottinghamshire.gov.uk | 6.91/10 | 4,400 | 4,708 | Sep 2024 |
| 46 | uestc.edu.cn | 6.90/10 | 10 | 6 | Sep 2026 |
| 47 | bni.co.id | 6.86/10 | 2,000 | 1,346 | Oct 2023 |
| 48 | grandstream.com | 6.84/10 | 11,900 | 6,050 | Dec 2023 |
| 49 | plusport.ch | 6.79/10 | 9 | 10 | Oct 2023 |
| 50 | cchealth.org | 6.77/10 | 25,000 | 12,195 | Aug 2025 |
| 51 | keyshot.com | 6.73/10 | 3,300 | 561 | Oct 2023 |
| 52 | barrett-jackson.com | 6.71/10 | 62,900 | 35,819 | Jan 2025 |
| 53 | stockholmvattenochavfall.se | 6.66/10 | 38 | 100 | Oct 2023 |
| 54 | hotels-online-buchen.de | 6.55/10 | - | - | Oct 2023 |
| 55 | soracom.jp | 6.53/10 | - | - | Feb 2026 |
| 56 | ulsan.go.kr | 6.50/10 | 1,100 | 11 | Jun 2025 |
| 57 | hoyavision.com | 6.49/10 | 4,700 | 1,898 | Nov 2023 |
| 58 | mitre10.com.au | 6.33/10 | 3,100 | 12,724 | Sep 2025 |
| 59 | kleintools.com | 6.18/10 | 157,100 | 32,548 | Jan 2026 |
| 60 | hornady.com | 6.08/10 | 71,000 | 15,702 | Oct 2023 |
| 61 | mims.com | 6.07/10 | 107,400 | 70,716 | Oct 2023 |
| 62 | mtn.ng | 6.05/10 | 5,900 | 3,220 | Jun 2024 |
| 63 | futo.org | 6.05/10 | 1,200 | 45 | Sep 2025 |
| 64 | chatbooks.com | 6.04/10 | 59,600 | 17,750 | Jun 2024 |
| 65 | hudy.cz | 5.99/10 | 52 | 308 | Jul 2024 |
| 66 | redcross.bg | 5.98/10 | - | 1 | Oct 2023 |
| 67 | roca.es | 5.92/10 | 490 | 3,661 | Mar 2026 |
| 68 | sbobet.com | 5.90/10 | 910 | 81 | Jan 2024 |
| 69 | zappar.com | 5.84/10 | 260 | 254 | Oct 2023 |
| 70 | idbi.bank.in | 5.83/10 | 2,500 | 753 | Jul 2026 |
| 71 | mdpls.org | 5.71/10 | 64,900 | 16,008 | Oct 2023 |
| 72 | econet.co.zw | 5.59/10 | 310 | 237 | Sep 2025 |
| 73 | prg.kz | 5.58/10 | - | 1 | Nov 2024 |
| 74 | visaacceptance.com | 5.56/10 | 150 | 124 | Apr 2026 |
| 75 | pxmart.com.tw | 5.47/10 | 11 | 40 | Oct 2023 |
| 76 | pasco.com | 5.47/10 | 70,500 | 10,333 | Apr 2024 |
| 77 | sbotop.com | 5.46/10 | 17 | 12 | Dec 2023 |
| 78 | uncp.edu.pe | 5.40/10 | 57 | 99 | Dec 2024 |
| 79 | shinhanlife.co.kr | 5.33/10 | 1 | 3 | Jan 2025 |
| 80 | cityline.com | 5.31/10 | 660 | 1,363 | Apr 2024 |
| 81 | coupdepoucevelo.fr | 5.31/10 | - | - | Oct 2023 |
| 82 | fontdrop.info | 5.29/10 | 2,000 | 594 | Oct 2023 |
| 83 | cmc.com | 5.27/10 | 53,200 | 10,885 | Mar 2024 |
| 84 | foreningshuset.se | 5.20/10 | - | 1 | Oct 2023 |
| 85 | visaonline.com | 5.05/10 | 6,800 | 537 | Feb 2026 |
| 86 | mathia.education | 5.04/10 | 590 | 19 | Jun 2024 |
| 87 | epson.biz | 4.95/10 | - | - | Oct 2023 |
| 88 | janet-lang.org | 4.79/10 | - | - | Oct 2023 |
| 89 | dezgo.com | 4.75/10 | - | - | Oct 2023 |
| 90 | eurogeosurveys.org | 4.73/10 | - | - | Sep 2025 |
| 91 | pieter.com | 4.72/10 | - | - | Nov 2024 |
| 92 | dingava.se | 4.72/10 | - | - | Oct 2023 |
| 93 | sportsaffinity.com | 4.69/10 | - | - | Oct 2023 |
| 94 | daishin.com | 4.69/10 | - | - | Oct 2023 |
| 95 | bicycode.eu | 4.69/10 | 36 | 36 | Oct 2023 |
| 96 | nuprc.gov.ng | 4.69/10 | - | - | Aug 2025 |
| 97 | siemens.cloud | 4.66/10 | - | - | Jun 2026 |
| 98 | sunstone.in | 4.65/10 | - | - | Oct 2023 |
| 99 | rcbc.com | 4.63/10 | - | - | Mar 2026 |
| 100 | cyprusbybus.com | 4.59/10 | - | - | Oct 2023 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →
Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).
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