Last updated · traffic data through Jun 2026 - refreshes automatically as new data lands.
Foundation is a responsive front-end CSS framework. Official site · Wikipedia
8,731
Websites
4.3%
Share of UI Framework
#4
Rank
of 50
32
Median DR
602,914,005
Combined monthly traffic
Showing 12 of 8,731 results
8,719 more Foundation sites are hidden. Unlock the full list.
Site Stats Database tracks 8,731 websites using Foundation. They carry a median Ahrefs Domain Rating of 32, higher than the 28 median across all tracked sites. The typical one is about 17 years old and ranks for 1,025 organic keywords. Over the last 2 months, the number we track grew 34% and their combined traffic rose 5.8%. Notable Foundation sites include patriots.com, uhaul.com, nyctourism.com. See plans and pricing.
Every figure in this section is based only on the websites Site Stats Database tracks, not the entire web. Market share, rank, totals, and medians all reflect our sample of 204,967 sites using a UI / CSS framework, not global market data.
+2,201 (+34%)
2026-06 → 2026-07
0.99% of tracked sites (was 1.1%)
Category
Top market
Top industry
Median referring domains
415
Median keywords
1,025
Median domain age
17 yrs
Adoption by audience size
Share of the most-visited sites we track that are websites using Foundation.
0.8%
Top 10K
84 of 10,000
1.1%
Top 100K
1,108 of 100,000
1.0%
All tracked
8,731 of 880,858
Monthly snapshots of the sites in this segment. A new point is added every month. Website counts move when our catalog grows; the share of tracked sites is normalized, so it only moves when the prevalence of this segment changes.
Websites
8,731
2026-06 to 2026-07
Share of tracked sites
0.99%
2026-06 to 2026-07
Combined monthly traffic
602,914,005
2026-06 to 2026-07
Median page count
361
2026-06 to 2026-07
Median referring domains
415
2026-06 to 2026-07
Every ui framework we track in this category, by number of websites.
The technologies most often detected alongside Foundation.
Site Stats Database tracks 8,731 websites using Foundation, enriched with full monthly traffic history, authority, keywords, referring domains, and the complete detected tech stack. We detect Foundation by crawling each site's HTML, response headers, and DNS; traffic and SEO metrics come from DataForSEO and Ahrefs. Everything refreshes at least monthly.
See plans & pricingFoundation is a UI / CSS framework. Site Stats Database detects it on the websites it tracks by analyzing each site's homepage, response headers, and DNS, and has currently found it on 8,731 websites.
Site Stats Database currently tracks 8,731 websites using Foundation. That makes it the #4 most common ui framework out of 50 we detect in this category.
The most common are News, Repair, and Community sites, and they are most common in United States and Spain. The breakdowns above show the full split across topics, markets, authority, and monetization, based on the 8,731 websites using Foundation we track.
Foundation is one of 50 ui framework options Site Stats Database detects. The alternatives section lists the others by adoption, and you can compare Foundation head-to-head with any of them.
They tend to have stronger authority than the typical website: the median Foundation site has an Ahrefs Domain Rating of 32, higher than the 28 median across all sites Site Stats Database tracks.
Over the last 2 months, the number we track grew 34% and their combined traffic rose 5.8%, based on Site Stats Database's month-by-month snapshots of this group.
Traffic estimates, organic keywords, and authority come from DataForSEO; Domain Rating comes from Ahrefs' public endpoint; and technology detection (including Foundation) comes from Site Stats Database's own crawler, which inspects each site's HTML, headers, and infrastructure.
At least monthly. Traffic and rankings refresh every month, and technology detections are refreshed as sites are re-crawled, so this page always reflects the current 8,731 Foundation websites.
Yes. The complete, filterable list of all 8,731 Foundation websites, enriched with traffic history, authority, keywords, and the full tech stack, is available with a Site Stats Database plan.
Site Stats Database detects Foundation by crawling each site's homepage HTML, response headers, and DNS.
Citation
Site Stats Database. "Websites Using Foundation." Site Stats Database, July 1, 2026. https://sitestatsdb.com/technologies/ui-frameworks/foundation
| English |
| 82 |
| 286,557 |
| 21,818 |
| 31 yrs |
| 20,054,396 |
| Foundation |
| nyctourism.com | English | 80 | 240,750 | 21,150 | 27 yrs | 16,941,041 | Foundation |
| uber.com | English | 91 | 401,357 | 121,270 | 30 yrs | 14,692,510 | Foundation |
| texaslottery.com | English | 80 | 57,299 | 7,352 | 26 yrs | 12,469,549 | Foundation |
| photo.walgreens.com | English | 85 | 109,015 | 4,546 | 31 yrs | 10,619,614 | Foundation |
| bandcamp.com | English | 93 | 668,672 | 555,755 | 23 yrs | 10,045,944 | Foundation |
| canvaslms.com | English | 80 | 5,426 | 13,632 | 15 yrs | 9,394,607 | Foundation |
| mapsofworld.com | English | 70 | 512,560 | 28,794 | 26 yrs | 8,853,604 | Foundation |
| visitgreenvillesc.com | English | 70 | 41,971 | 2,959 | 14 yrs | 8,191,263 | Foundation |
| lamar.edu | English | 75 | 113,703 | 11,627 | 36 yrs | 7,995,857 | Foundation |
| ringcentral.com | English | 87 | 63,422 | 31,898 | 27 yrs | 7,485,295 | Foundation |