Websites Powered by W3.CSS

26,595 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

Domains observed using W3.CSS in each month's HTTP Archive crawl, May 2023 to Jun 2026 · peak 12,792 in Jun 2023. The tracked total above also counts sites not re-crawled recently.

Core Web Vitals

LCP 1.7 s INP 75 ms CLS 0 TTFB 700 ms

Median site among 9,872 W3.CSS sites with Chrome UX data, p75 values, Jun 2026.

Top countries

India 2,546
United States 2,305
Indonesia 1,336
Thailand 1,113
United Kingdom 1,006
Brazil 999
Germany 991
France 976

Sites using W3.CSS by audience country, Chrome UX Report.

Top sites by authority

9+ 5% · 17 of 372 sites
8+ 2% · 131 of 7,677 sites
7+ <1% · 279 of 45,712 sites
6+ <1% · 399 of 110,136 sites
5+ <1% · 554 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

#DomainOpen Page RankOPREst. monthly visits (US)Visits (US)KeywordsFirst seen
1201 actorvanstudios.com 0.24/10 - - Sep 2023
1202 actsweb.org 2.89/10 - - May 2023
1203 acvita.edu.in 0.38/10 - - May 2023
1204 acwrelics.com 0.31/10 - - May 2023
1205 ada.org.et 2.01/10 - - Jun 2023
1206 adadeh.site - - - Jun 2026
1207 adamellothehumantouch.it 1.08/10 - - May 2023
1208 adamharley.com 2.95/10 - - May 2023
1209 adampolsa.com.pl 3.04/10 - - Jun 2023
1210 adamstownshipschools.org 1.40/10 - - May 2023
1211 adaonlemosgb.com 0.10/10 - - May 2023
1212 adapter4dev.com - - - Nov 2025
1213 addaking.com 0.10/10 - - Feb 2025
1214 addvice.com.tr 0.71/10 - - May 2023
1215 addvision.sk 0.39/10 - - May 2024
1216 adeneu.com.ar 2.62/10 - - Sep 2023
1217 aderes.es.gov.br 3.09/10 - - Nov 2024
1218 adf.hk 0.87/10 - - May 2023
1219 adharshilagroup.com 0.10/10 - - Aug 2023
1220 adhdstrategie.cz 0.75/10 - - Mar 2025
1221 adiesel.com 0.28/10 - - Apr 2026
1222 adigrat.it 0.55/10 - - Jun 2023
1223 adip-international.org 0.87/10 - - May 2023
1224 adip.be 1.36/10 - - May 2023
1225 adisez.ro 0.26/10 - - May 2023
1226 adkorea.best 0.28/10 - - Feb 2026
1227 adler-automobile.de 1.11/10 - - Jul 2025
1228 admissiontracks.com 0.59/10 - - May 2023
1229 adokin.es 0.72/10 - - Nov 2024
1230 adonisgroup.ca 1.60/10 - - May 2023
1231 adroitcorporate.com 0.83/10 - - May 2023
1232 adsimplifi.com - - - Mar 2026
1233 advancedwomenshealth.net 0.27/10 - - May 2023
1234 adventure-bulgaria.org 0.70/10 - - May 2023
1235 adventuregolf-sierksdorf.de 0.81/10 - - Aug 2023
1236 adventuregreathimalaya.com 3.17/10 - - May 2023
1237 adventureoutdoors.us 1.50/10 - - May 2023
1238 aealtodosmoinhos.pt 1.36/10 - - May 2023
1239 aegaianascente.pt 1.09/10 - - May 2023
1240 aegis.edu.in 1.60/10 - - May 2023
1241 aegmartinelli.it 0.32/10 - - Jul 2025
1242 aeliotis.com 1.39/10 - - May 2023
1243 aelpb.pt 0.89/10 - - May 2023
1244 aeme.gt 0.42/10 - - Sep 2023
1245 aemoncao.com 0.54/10 - - Nov 2024
1246 aenza.com.pe 1.95/10 - - May 2023
1247 aerobus.pl 0.74/10 - - Feb 2025
1248 aerodata.aero 1.14/10 - - May 2023
1249 aerodin.gr 0.34/10 - - May 2023
1250 aeu.edu.kh 1.58/10 - - Nov 2024
1251 afcomcargo.com 1.44/10 - - Feb 2026
1252 affatech.com.ng 0.25/10 - - May 2023
1253 afghanthesis.com 0.10/10 - - Jun 2024
1254 afirstlook.com 3.36/10 - - Oct 2023
1255 aflife.co.zm 0.44/10 - - May 2026
1256 africoastenergy.co.za 0.56/10 - - Feb 2026
1257 afuegolentocomidas.com 0.28/10 - - May 2023
1258 afyonkarahisartso.org.tr 1.69/10 - - May 2023
1259 agcars.co.th 0.26/10 - - Jun 2023
1260 agck.in 0.38/10 - - May 2024
1261 agdw.de 2.02/10 - - Sep 2024
1262 age.ninja 1.05/10 - - May 2023
1263 agena.com.br 1.29/10 - - May 2023
1264 agencedelagare-brunoy.com 0.11/10 - - Jun 2024
1265 agencedexperts.fr 0.98/10 - - Feb 2026
1266 agencefochimmobilier.com 0.10/10 - - Jul 2025
1267 agencelephare.com 0.36/10 - - May 2023
1268 agencevitry.re 0.25/10 - - May 2023
1269 agency.edu.mn 0.25/10 - - May 2023
1270 agenmoc.com.br - - - May 2023
1271 agg.sa 1.13/10 - - May 2023
1272 agnschool.edu.in 0.38/10 - - Jun 2023
1273 agriculturemizoram.nic.in 1.71/10 - - May 2023
1274 agristudies.co.za 0.43/10 - - Mar 2026
1275 agrobotany.in 0.38/10 - - Apr 2024
1276 agromanual.pt 1.19/10 - - May 2023
1277 agu.com.gt 0.57/10 - - May 2023
1278 aguadepez.store - - - Apr 2026
1279 agyad-maint.com - - - Feb 2026
1280 ahasalerts.com 2.90/10 - - May 2023
1281 ahsalimentos.com.br 0.40/10 - - Mar 2024
1282 ai4strata.my - - - Jun 2026
1283 aia.it 4.04/10 - - May 2023
1284 aichimedicalcollegebd.com 0.10/10 - - Oct 2023
1285 aidgc.org.au 1.37/10 - - Jan 2025
1286 aidltd.com 0.43/10 - - May 2023
1287 aidress.app 0.61/10 - - Dec 2024
1288 aifinderguru.com 0.59/10 - - Sep 2025
1289 aiimsbathinda.net 0.30/10 - - Jun 2023
1290 aiivision.co.id - - - Jun 2024
1291 ailearnme.com - - - Jun 2024
1292 ailrjournal.com - - - Dec 2025
1293 aineldjazair.dz 0.43/10 - - May 2023
1294 ainpedia.com 0.86/10 - - May 2023
1295 airballingla.com 1.46/10 - - May 2023
1296 airconman.sg 2.25/10 - - Dec 2024
1297 airfasco.com 0.15/10 - - May 2023
1298 airforceschooltezpur.in 0.71/10 - - May 2023
1299 airlinkph.com - - - Jul 2025
1300 airwaysonline.in 0.42/10 - - 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) →

Compare W3.CSS

Related UI frameworks

Look up any website for free

No paywall, no lead-gen, no account. Paste a domain and see what powers it.

No account neededHistory since 2018