Websites Powered by W3.CSS
26,998 websites tracked using W3.CSS (UI frameworks) · www.w3schools.com
W3.CSS is a UI/CSS framework used to style and lay out the site. Its official site is w3schools.com. PoweredBy tracks the websites that use W3.CSS across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the ui frameworks ecosystem.
Usage trend
5K
10K
15K
May 2023
Mar 2024
Feb 2025
Dec 2025
Oct 2026
Domains observed using W3.CSS in each month's HTTP Archive crawl,
May 2023 to Oct 2026 · peak 12,792 in Jun 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.6 s
INP 75 ms
CLS 0
TTFB 700 ms
Median site among 9,480 W3.CSS sites with Chrome UX data, p75 values, Sep 2026.
Top countries
India
2,142
United States
2,024
Indonesia
1,103
Thailand
977
Brazil
872
United Kingdom
868
Germany
860
France
800
Sites using W3.CSS by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Government | 0.23% | 22 |
| Education | 0.10% | 65 |
| Automotive | 0.07% | 58 |
| Blogs and publishing | 0.06% | 18 |
| Arts and entertainment | 0.05% | 25 |
| Sports and fitness | 0.05% | 10 |
| Finance and insurance | 0.04% | 9 |
| Real estate | 0.04% | 33 |
| Non-profit and religious | 0.04% | 4 |
| Healthcare | 0.03% | 41 |
| News and media | 0.03% | 15 |
| Retail | 0.03% | 95 |
Share of each industry's websites with a detected stack that use W3.CSS; industries come from what sites declare in their own structured data.
Top sites by authority
9+
4% · 16 of 372 sites
8+
2% · 122 of 7,677 sites
7+
<1% · 267 of 45,712 sites
6+
<1% · 380 of 110,136 sites
5+
<1% · 517 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running W3.CSS in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using W3.CSS
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1101 | billbergia.com.au | 2.95/10 | 20 | 24 | Jul 2024 |
| 1102 | schiffbilder.de | 2.95/10 | - | - | Jun 2026 |
| 1103 | esscrans-montana.ch | 2.95/10 | - | - | May 2023 |
| 1104 | cardsjd.com | 2.94/10 | 10,300 | 822 | May 2023 |
| 1105 | lite.events | 2.94/10 | - | - | Jul 2023 |
| 1106 | cmebg.com | 2.94/10 | 10 | 49 | May 2026 |
| 1107 | cnvv.it | 2.94/10 | - | 3 | May 2023 |
| 1108 | jimsgn.org | 2.94/10 | - | - | May 2023 |
| 1109 | francelaser.org | 2.93/10 | - | - | May 2023 |
| 1110 | decouvrir-dieu.com | 2.93/10 | - | - | May 2023 |
| 1111 | gruppomagis.it | 2.93/10 | - | - | Oct 2026 |
| 1112 | somersetheritage.org.uk | 2.93/10 | - | - | May 2023 |
| 1113 | ibew100.org | 2.93/10 | - | - | May 2023 |
| 1114 | mu-klecany.cz | 2.93/10 | - | - | Oct 2026 |
| 1115 | confindustriacanavese.it | 2.92/10 | - | 3 | May 2023 |
| 1116 | calsna.org | 2.92/10 | 220 | 146 | May 2026 |
| 1117 | aquaria-phuket.com | 2.92/10 | 250 | 92 | May 2023 |
| 1118 | aksu.edu.ng | 2.92/10 | 150 | 22 | Jul 2026 |
| 1119 | vaikystes-sodas.lt | 2.92/10 | - | - | May 2023 |
| 1120 | csca.ca | 2.92/10 | - | - | May 2023 |
| 1121 | golfclubanderstein.nl | 2.92/10 | - | - | May 2023 |
| 1122 | sociedadmenendezpelayo.es | 2.92/10 | - | - | Jun 2023 |
| 1123 | gonioscopy.org | 2.91/10 | - | - | May 2023 |
| 1124 | mini-ielts.com | 2.91/10 | - | - | May 2023 |
| 1125 | royalnavyresearcharchive.org.uk | 2.91/10 | - | - | May 2023 |
| 1126 | highzero.org | 2.91/10 | - | - | Oct 2023 |
| 1127 | omafoligno.it | 2.91/10 | - | - | Dec 2025 |
| 1128 | nelkindesigns.com | 2.90/10 | - | - | May 2023 |
| 1129 | ahasalerts.com | 2.90/10 | 530 | 213 | May 2023 |
| 1130 | barska.com | 2.90/10 | 870 | 198 | Oct 2023 |
| 1131 | 123certificates.com | 2.90/10 | 5,100 | 1,921 | May 2023 |
| 1132 | fujifilm.com.tw | 2.90/10 | - | - | May 2023 |
| 1133 | humanizeaitext.org | 2.90/10 | - | - | Nov 2023 |
| 1134 | bibleanalyzer.com | 2.89/10 | 84 | 224 | May 2023 |
| 1135 | ludusmagnusstudio.com | 2.89/10 | - | - | May 2023 |
| 1136 | actsweb.org | 2.89/10 | 530 | 830 | May 2023 |
| 1137 | drawsvg.org | 2.89/10 | - | - | Nov 2025 |
| 1138 | revistaindustriatextila.ro | 2.89/10 | - | - | May 2023 |
| 1139 | murdermystery.com.au | 2.89/10 | - | - | May 2023 |
| 1140 | linksoluciones.com | 2.88/10 | - | - | May 2023 |
| 1141 | diarinho.net | 2.88/10 | - | - | May 2023 |
| 1142 | indiaspaceweek.org | 2.88/10 | - | - | Aug 2023 |
| 1143 | udosk.sk | 2.88/10 | - | - | May 2023 |
| 1144 | campingkidz.nl | 2.88/10 | 25 | 9 | May 2023 |
| 1145 | shetland.co.uk | 2.88/10 | - | - | May 2023 |
| 1146 | bofharchive.com | 2.87/10 | - | 1 | May 2023 |
| 1147 | billingdoc.net | 2.87/10 | - | - | May 2023 |
| 1148 | applianceassistant.com | 2.87/10 | 1,100 | 788 | Feb 2025 |
| 1149 | mumbaibusinessdirectory.in | 2.87/10 | - | - | May 2023 |
| 1150 | 24ora.com | 2.87/10 | 390 | 290 | Jun 2023 |
| 1151 | eea.org.eg | 2.87/10 | - | - | May 2023 |
| 1152 | musicforpeace.it | 2.87/10 | - | - | Nov 2024 |
| 1153 | siedlec.pl | 2.87/10 | - | - | May 2023 |
| 1154 | sugarmtn.org | 2.87/10 | - | - | May 2023 |
| 1155 | heileuver.nl | 2.87/10 | - | - | May 2023 |
| 1156 | boltiot.com | 2.86/10 | 1 | 7 | May 2023 |
| 1157 | esx.ro | 2.86/10 | - | - | Jun 2025 |
| 1158 | paintref.com | 2.86/10 | - | - | Dec 2023 |
| 1159 | ncdc.gov.pg | 2.86/10 | - | - | May 2023 |
| 1160 | houghtoncounty.net | 2.86/10 | - | - | May 2023 |
| 1161 | zanaco.co.zm | 2.86/10 | - | - | May 2023 |
| 1162 | flugzeug-bild.de | 2.86/10 | - | - | Jun 2026 |
| 1163 | gminakosakowo.pl | 2.86/10 | - | - | May 2023 |
| 1164 | nicpd.ac.in | 2.86/10 | - | - | May 2023 |
| 1165 | vilhena.ro.gov.br | 2.86/10 | - | - | Nov 2025 |
| 1166 | iik.de | 2.86/10 | - | - | May 2023 |
| 1167 | gigamall.com.vn | 2.85/10 | - | - | May 2023 |
| 1168 | londonproofreaders.co.uk | 2.85/10 | - | - | May 2023 |
| 1169 | geekychef.com | 2.85/10 | - | - | May 2023 |
| 1170 | ellentalgymnasien.de | 2.85/10 | - | - | May 2026 |
| 1171 | twgbr.org | 2.84/10 | - | - | May 2023 |
| 1172 | hrimaging.com | 2.84/10 | - | - | May 2023 |
| 1173 | vastuvishwa.com | 2.84/10 | - | - | Oct 2026 |
| 1174 | trevligaspel.se | 2.84/10 | - | - | Aug 2025 |
| 1175 | siahvy.org | 2.84/10 | - | - | Apr 2025 |
| 1176 | kafd.jo | 2.84/10 | - | - | May 2023 |
| 1177 | acimac.it | 2.84/10 | - | 2 | May 2023 |
| 1178 | furcamping.dk | 2.84/10 | - | - | May 2023 |
| 1179 | barlotti.it | 2.84/10 | - | 1 | Nov 2023 |
| 1180 | italgrob.it | 2.84/10 | - | - | May 2023 |
| 1181 | westcapitallending.com | 2.83/10 | - | - | Jul 2023 |
| 1182 | bluecover.pt | 2.83/10 | 120 | 17 | Oct 2024 |
| 1183 | axustravelapp.com | 2.83/10 | 860 | 261 | May 2023 |
| 1184 | pagesection.com | 2.83/10 | - | - | Aug 2023 |
| 1185 | randersfreja.dk | 2.83/10 | - | - | May 2023 |
| 1186 | schwingstetterindia.com | 2.82/10 | - | - | Jan 2025 |
| 1187 | cafeauto.vn | 2.82/10 | 24 | 197 | Mar 2025 |
| 1188 | ualocal38.org | 2.82/10 | - | - | May 2024 |
| 1189 | bo.gov.ng | 2.82/10 | - | - | May 2023 |
| 1190 | nabu-zukunftsgarten.de | 2.82/10 | - | - | May 2023 |
| 1191 | forrestcountyms.us | 2.82/10 | - | - | Aug 2024 |
| 1192 | cityofhancock.com | 2.82/10 | 1,600 | 347 | May 2023 |
| 1193 | neuro-hr.org | 2.82/10 | - | - | May 2023 |
| 1194 | carolynyeager.net | 2.82/10 | 21 | 45 | Mar 2026 |
| 1195 | nconturbines.com | 2.82/10 | - | - | May 2023 |
| 1196 | livemeteors.com | 2.81/10 | - | - | May 2023 |
| 1197 | fgr.gob.sv | 2.81/10 | - | - | May 2023 |
| 1198 | garden-birds.co.uk | 2.81/10 | - | - | May 2023 |
| 1199 | prsuuniv.in | 2.81/10 | - | - | Jul 2023 |
| 1200 | shayazilim.com | 2.81/10 | - | - | May 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).
Compare W3.CSS
- W3.CSS vs Bootstrap
- W3.CSS vs Animate.css
- W3.CSS vs Tailwind CSS
- W3.CSS vs Radix UI
- W3.CSS vs ZURB Foundation