AI-Built Websites, 21 Sept – 27 Sept 2026: Weekly Scan Report
By AI Website Detector Research · Published · Covers 21 Sept – 27 Sept 2026 (ISO week 2026-W39)
Key takeaways
- We analysed 13,174 unique websites this week. 24.4% of them (3,221) showed AI involvement: 463 were built on an AI-native platform (3.5%) and 2,758 used an AI-compatible or AI-augmented stack.
- That is 0.7 percentage points lower than the week before (25.1%, from 11,697 sites).
- Next.js was the most detected builder or platform with 2,199 sites (16.7% of the week's scans).
- Among AI-native builders, Lovable led with 281 sites, ahead of Framer (133).
The week in numbers
We analysed 13,174 unique websites this week. 24.4% of them (3,221) showed AI involvement: 463 were built on an AI-native platform (3.5%) and 2,758 used an AI-compatible or AI-augmented stack. That is 0.7 percentage points lower than the week before (25.1%, from 11,697 sites).
Most detected builders and platforms
| Builder / platform | Sites | Share | Week before |
|---|---|---|---|
| Next.js | 2,199 | 16.7% | 2,158 |
| WordPress | 1,406 | 10.7% | 1,189 |
| Elementor | 715 | 5.4% | 554 |
| Shopify | 329 | 2.5% | 282 |
| Astro | 296 | 2.2% | 201 |
| Lovable | 281 | 2.1% | 235 |
| PHP | 263 | 2% | 197 |
| Express.js | 234 | 1.8% | 190 |
| WooCommerce | 163 | 1.2% | 136 |
| Squarespace | 150 | 1.1% | 120 |
Next.js was the most detected builder or platform with 2,199 sites (16.7% of the week's scans). WordPress grew the most week on week, from 1,189 to 1,406 sites.
AI-native builders
Among AI-native builders, Lovable led with 281 sites, ahead of Framer (133).
- Lovable: 281 sites (2.1% of the week)
- Framer: 133 sites (1% of the week)
- Base44 AI: 69 sites (0.5% of the week)
- Replit AI: 31 sites (0.2% of the week)
- Hostinger AI: 26 sites (0.2% of the week)
- Bolt: 17 sites (0.1% of the week)
Where the sites are hosted
The most common hosting provider was Cloudflare (5,314 sites).
- Cloudflare: 5,314 sites
- Vercel: 1,827 sites
- Netlify: 455 sites
- GitHub Pages: 283 sites
- AWS CloudFront: 153 sites
- Squarespace: 141 sites
How to read this report
Every figure counts unique domains that visitors and our own checks scanned between 21 September 2026 and 27 September 2026 (UTC). Each domain is counted once per week, bots and blocked or spam domains are removed, and the classification follows the same scoring rules as every report on this site. The sample is made of sites people chose to check, so it is not a random sample of the web: read the shares as a picture of what our users scan, not of all websites.
Want the longer view? The monthly insights and the AI builder market share page put these weekly numbers in context, and the methodology explains what the detector can and cannot see.
How our detection works — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.