~/allthedamn.tools

Meta Tag Checker

Paste a URL, get every meta tag that matters, graded, in seconds.

fetches the URL via our server
Input mode
fetches the URL via our server

What this checks

One fetch, every tag that affects how your page is found and shared: the title tag and meta description (with pixel-width warnings), meta robots and X-Robots-Tag directives, the canonical URL, Open Graph tags, Twitter card tags, and the viewport and charset basics.

Each finding is graded in plain language: what is missing, what is too long or duplicated, and what will bite you (a stray noindex, a canonical pointing at the wrong host, an og:image that will not resolve).

URL mode and paste mode

URL mode fetches the page through our server, because your browser is not allowed to read other sites directly (cross-origin rules). We fetch the page once, read the HTML, and return the tags; we never store the page or forward your cookies.

Paste mode skips the network entirely: drop in raw HTML and everything runs in your browser. Use it for pages behind logins, staging environments, or when a site blocks automated fetches. Blocked fetches are reported honestly; we never guess at tags we could not read.

fair questions

Why did the fetch fail on my site?
Common causes: the site blocks non-browser requests (bot protection), requires a login, or is slow beyond our timeout. Use paste mode: view the page source in your browser, copy it, and paste. Analysis then runs locally with the same checks.
Do you store the pages you fetch?
Responses are cached briefly (minutes) so repeated checks of the same URL do not hammer the target site, then they expire. Nothing is stored beyond that, and nothing is associated with you.
Which tags actually matter for rankings?
Title and meta robots directives affect rankings directly; the description affects click-through, not position. Canonical consolidates duplicate URLs. Open Graph and Twitter tags change how shares look, which drives the clicks and links that do move rankings.
What does a missing canonical mean?
Nothing fatal: search engines then pick a canonical themselves. It becomes a real problem when the same content lives at multiple URLs (tracking parameters, http/https, trailing slashes). A self-referencing canonical is a cheap insurance policy.

this site is built on Guardrails, the guard-railed boilerplate for shipping real products with AI agents.