Why it matters
Fetches a URL's response headers and grades security, caching, compression and indexing headers with fixes.
Endpoint kind=head (GET with body discarded after 64 KB). Graders reuse csp-evaluator, cache-control-explainer, set-cookie-analyser and security-headers logic; HSTS preload eligibility rules (not the list itself). Everything runs in your browser; nothing you paste is sent unless you press Fetch.
How to use it
- Enter the https address and press Fetch.
- Read the verdict and the supporting details.
- Copy anything you need; the request is made only once.
- Nothing is stored on leej.uk except a count.
FAQ
Is my URL or page stored?
No. Fetch reads the address you give once, as LeejTools/1.0, and leej.uk keeps only a count. Pasted text never leaves your device.
Will this change my site for me?
No. It shows results and, where it writes rules or files, you copy them and apply them yourself.
Can I rely on this as official guidance?
It follows public documentation and well-known algorithms, and tells you where it is a subset or a simulation. Confirm critical changes in the official tool or a staging environment.
