Eleventy (also styled as 11ty) is a flexible, JavaScript-based static site generator favored by developers, technical bloggers, and performance-focused teams who want full control over their output without the overhead of a heavyweight framework. Unlike opinionated generators, Eleventy imposes minimal structure, making it a popular choice for personal sites, documentation portals, and design systems where clean, fast HTML is the priority. AIWebsiteDetector.com identifies Eleventy-powered sites through meta tag pattern analysis — specifically, the generator meta tag embedded in the document head, which Eleventy injects by default and serves as the primary fingerprint our detection engine relies on. With 1 confirmed meta tag pattern in our detection database, the engine achieves reliable identification even when developers have customized themes or stripped other build artifacts. Eleventy sites are typically self-hosted or deployed via JAMstack platforms such as Netlify, Vercel, or GitHub Pages, and because the framework produces purely static output with no mandatory client-side runtime, the generator meta tag often remains the sole detectable signal — making it a uniquely minimalist target for automated detection compared to more footprint-heavy builders.
Detect Eleventy Websites — Free Tool
Enter any URL to check if it was built with Eleventy. Instant results, no account required.
How we detect Eleventy — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
How to Detect Eleventy Websites
Meta Tags
1 patterns
1. Check the Page Source
Open the website in your browser, right-click, and select "View Page Source". Search for eleventy-specific patterns in the HTML.
4. Use AI Website Detector (Easiest)
Our automated scanner checks all these signals at once and gives you an instant confidence score. Just enter any URL above.
Frequently Asked Questions
Is this website built with Eleventy?
You can detect if any website was built with Eleventy by using our free scanner above. Just enter the URL and we'll analyze HTML patterns, JavaScript files, CDN domains, and HTTP headers to determine if Eleventy was used — with a confidence score.
How to detect if a website was built with Eleventy?
There are several ways to detect Eleventy: (1) View the page source and look for Eleventy-specific class names or script URLs, (2) Check the Network tab in DevTools for requests to Eleventy CDN domains, (3) Use our free tool — we check 0 detection signals automatically.
What websites are built with Eleventy?
Eleventy is used by thousands of websites worldwide. Our scanner has detected many Eleventy-built sites across different industries. You can scan any URL to check if it uses Eleventy.
How accurate is the Eleventy detection?
Our Eleventy detection engine checks 0 unique fingerprint signals, achieving high confidence results. We score each match and return a confidence percentage so you know how certain the detection is.
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Detection Info
- Category
- Static Site Generator
- Signals Used
- 0 patterns
- Accuracy
- High
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