Jekyll Detector
Paste any URL and instantly see whether the site is built with Jekyll — with the matched evidence.
We do not store the URL you audit. Want the full audit (performance / images / SEO / accessibility + real-browser speed test)? → run the full audit
Why check this
Confirm the platform first: Framework decides what can be changed and whether it is worth it.
What this is
Jekyll is a Ruby static-site generator and still a default option on GitHub Pages. Project sites and technical blogs use it often. After confirming generator, evaluate theme gems, plugins and cache headers on built assets. GitHub Pages defaults make it easy to publish and easy to forget cache headers.
How to tell from a public page
- [Jekyll] A generator meta tag names Jekyll.
- [Jekyll] Paths or comments leave generator traces.
- [Jekyll] Theme-gem asset folders are recognisable.
- [Jekyll] Residual Liquid comments appear in output HTML.
How to read the result
Confirm when generator reproduces; a README badge is not runtime evidence. Absence can mean the production build removed generator meta. Static-host documentation samples sometimes include generator tags. After a hit, compress theme CSS and inspect scripts injected by plugins.
What to do next
Refresh the theme, self-host fonts, and verify hosting via GitHub Pages on GitHub Pages detector. Complete the audit at run the full performance / images / SEO / accessibility audit on the home page. Favour theme updates over stacking abandoned plugins.
Related detectors
FAQ
How is Jekyll detected?
From structural signatures in the public HTML and response headers (domains, paths, attributes, scripts). Every verdict lists how many times each pattern matched — nothing is guessed.
Can the result be wrong?
If only a bare brand keyword matches without structural evidence, we label it \u201clikely\u201d instead of \u201cconfirmed\u201d — we would rather under-report than cry wolf.
Do you save the URLs I check?
No. The audit runs inside the request and the URL you paste is not written to storage. There are no third-party tracking scripts on the page either, so no log of who checked what exists. Copy the result yourself if you want a record.
Can a website hide what it is built with?
Partly, but rarely completely. The HTML sent to your browser, the response headers, script paths and asset structure have to be exposed to work, so there is always something readable. Server-side code, build config and private APIs stay invisible. That is why this tool reports the evidence it found rather than claiming a full picture. No match does not mean the technology is absent.
Optimization help is available
Tell me your URL and what you want fixed — you get a clear scope, price and timeline.
To：[email protected] | Cc：[email protected]
