What are the websites people visit most actually built with? We looked at 5,461 sites in the Chrome UX Report’s top 10,000, the sites people open most in Google’s Chrome browser, as our crawl had read them between 10 October and 11 November 2026. We could read the home page of 4,004 of them; the rest turned automated visitors away. For each, our Tech Stack Checker named what the page, its headers and its DNS records show, each with the line it found it in.
The short version:
- Next.js leads the frameworks, on 12.3% of the sites we read: as common in the top 1,000 as in the next 9,000, and on one in five software sites.
- jQuery is still everywhere. It loads on 26.2% of the most visited sites, more than any framework, though on only 14% of the top 1,000.
- WordPress is rare at the top. It runs 9.1% of these sites and 3.4% of the top 1,000, but 18.5% of news sites.
- Two in five sit on Cloudflare’s network (40.5%), then Amazon (15.8%), Akamai (8.8%) and Fastly (4.6%).
- Google’s tags are the most common: its Tag Manager on 37.3%, Analytics on 28.2%, and its ad tools on 24%.
- Almost none show an AI builder’s traces: 1 of 4,004.
Which frameworks do the most popular websites use?
Next.js is the framework we find most, on 492 of the 4,004 sites we read. It is as common in the top 1,000 (12.7%) as in the rest (12.2%), and more common still on software and app sites (20.9%) and online shops (17.8%). A framework we can name, front end or back end, shows on 27.7% of the sites; the rest send pages whose tools don’t sign their work.
| Framework | Sites | Share |
|---|---|---|
| Next.js | 492 | 12.3% |
| React, on its own | 169 | 4.2% |
| Vue | 152 | 3.8% |
| Nuxt | 94 | 2.3% |
| Express | 69 | 1.7% |
| Vite | 67 | 1.7% |
| Ruby on Rails | 59 | 1.5% |
| Astro | 56 | 1.4% |
| Angular | 40 | 1.0% |
“React, on its own” counts the sites where React shows without a framework built on it; every Next.js site runs React too. Vue leads in one corner: gambling and betting sites, where it is on 7.3% and Next.js on 4%.
jQuery is still on a quarter of them
jQuery, released in 2006, loads on 1,049 of the sites we read (26.2%). Its older companions come with it: jQuery Migrate on 4.6%, jQuery UI on 3.9%. The larger the site, the less often we see it: 14.3% of the top 1,000 load it, 27.2% of the next 9,000. The carousel library Swiper is the next most common script, on 13.7%.
How many top websites use WordPress?
Fewer than you might expect. WordPress runs 363 of the sites we read (9.1%), and 11 of the 322 we read in the top 1,000 (3.4%). A content management system of any kind shows on 14.1%.
| Content management system | Sites | Share |
|---|---|---|
| WordPress | 363 | 9.1% |
| Adobe Experience Manager | 60 | 1.5% |
| Contentful | 52 | 1.3% |
| Drupal | 38 | 0.9% |
It depends on the kind of site. WordPress runs 18.5% of news and blog sites, Adobe Experience Manager 7% of company sites, and Drupal 9% of government sites. Online shops lean on shop systems: Shopify on 14.7% of them and Salesforce Commerce Cloud on 10.5%.
CSS: Bootstrap ahead of Tailwind
Bootstrap is on 13.7% of the sites we read, Tailwind CSS on 9.3%. Both are rarer in the top 1,000 (7.1% and 4.7%), where more sites write their styles their own way. For fonts, Google Fonts loads on 21% and Font Awesome on 17.3%.
Who serves the most visited websites?
We read the network announcing each site’s address, the company whose servers answer for it. Of the 3,994 sites whose network we could read:
| Network | Sites | Share |
|---|---|---|
| Cloudflare | 1,616 | 40.5% |
| Amazon | 631 | 15.8% |
| Akamai | 350 | 8.8% |
| Fastly | 183 | 4.6% |
| 121 | 3.0% | |
| OVH | 51 | 1.3% |
| Hetzner | 40 | 1.0% |
| Microsoft | 36 | 0.9% |
Behind those networks, the headers name the delivery networks in front of a site: Amazon CloudFront on 13.7% of the sites we read, Akamai on 8.9% and Fastly on 5%. Bot protection is common too: Cloudflare’s Bot Management on 9%, reCAPTCHA on 6.1%.
Analytics, tags and ads
- Google Tag Manager loads on 37.3% of the sites we read, and Google Analytics on 28.2%. Any analytics tool we know shows on 40.2%: Comscore (3.7%), Microsoft Clarity (3.4%), Yandex Metrica (3.3%) and Cloudflare Web Analytics (2.9%) come next.
- Advertising: one site in three (32.7%) loads an ad tool on its home page: Google Ad Manager on 14.9%, AdSense on 9.7%, the Meta Pixel on 6.7%.
- Cookie consent: 16% load a consent tool we know, OneTrust most (7.3%), then Didomi (2.6%).
Many sites load these tools only after a visitor accepts cookies, or through a tag manager after the page has loaded; we see what the home page loads at once, so the true shares are higher.
What about websites built with AI?
One of the 4,004 sites shows an AI website builder’s traces: a site made with Lovable. In our study of 1,978 websites made with AI builders, nearly every Lovable site shares one stack: React, Vite and Tailwind CSS. The most visited sites aren’t made that way, yet; AI coding assistants, which leave no builder’s trace, are another matter (why “no traces” never means “made by a person”).
Check your own website
Our Tech Stack Checker names the frameworks, site builders, shop systems, hosting, analytics and more on any site, each with the line or header we found it in. Each technology above links to the popular sites we found it on.
How we measured
- Sites: every site whose newest full result says the Chrome UX Report ranks it, under its own name, in its top-10,000 bucket: 5,461 sites our crawl had reached, read between 10 October and 11 November 2026 and counted on 11 November.
- Read: 4,004 home pages. The other 1,457 turned our bot away, asked bots to stay out, asked visitors to sign in, or didn’t answer; their technologies are left out, since most of what we look for is on the page.
- Found: what our Tech Stack Checker names from a site’s home page, the scripts and styles it loads, its headers, cookies and DNS records, each from a line it shows. Shares are of the 4,004 sites read; “top 1,000” is the Chrome UX Report’s top-1,000 bucket (322 sites read).
- Networks: the network announcing each site’s address, from Team Cymru’s IP-to-ASN mapping. Akamai’s two networks are counted together.
- A mistake we found on the way. Our scans run on Cloudflare’s network, which adds its own header to every answer, and we took that header as a sign a site uses Cloudflare. Counting for this article showed Cloudflare on 95% of these sites, far more than its network serves. We fixed it the same day (the changelog); the Cloudflare figure above is the network’s.
- Kinds: the kind of site our scan named, for kinds with at least 40 sites read.
What this doesn’t tell you
- What runs behind the page. A site’s servers, databases and internal tools don’t show in what it sends; we name what the home page, its headers and DNS records show.
- What loads later. Tools added after a cookie choice or by a tag manager, and pages other than the home page, aren’t counted: the shares are a floor.
- The sites that turned us away. A quarter of the sites didn’t let our bot read their page. The top 1,000 is the least covered: our crawl had reached 454 of them, and read 322.
- Every site. These are the most visited sites; smaller sites may look very different.
- One snapshot, of autumn 2026; we’ll count again.