Meta Tag Analyzer
Check a page's title, description, headings, canonical and social tags.
Enter a URL to see the tags search engines and social platforms actually read: title, meta description, heading structure, canonical URL, robots directives, Open Graph and Twitter Card tags.
Each is checked against what search engines display rather than what is merely valid HTML — a 90-character title is perfectly valid and will still be cut off in results.
How it works
A handful of tags do most of the work in how a page is understood and displayed. They are easy to get wrong in ways that never produce an error.
- Title. The strongest on-page signal, and the headline in search results. Google truncates around 60 characters — the real limit is pixel width, so wide capitals run out sooner. Put the distinguishing words first, because the end is what gets cut.
- Meta description. Not a ranking factor, but it is the sales copy under your link and it drives click-through. Around 160 characters. If it is missing, Google invents one from page text, usually badly.
- H1. One per page. Multiple H1s dilute the topic signal, and a page with none leaves the subject ambiguous.
- Canonical. Declares the preferred URL when the same content
is reachable several ways — with and without
www, with tracking parameters, paginated. Without it, ranking signals split across duplicates. - Robots. A stray
noindexis the single most damaging tag on this list, and the most common cause of a page vanishing from search. It usually arrives when a staging configuration reaches production. - Open Graph. Controls the preview when a link is shared.
Without
og:title,og:descriptionandog:image, social platforms guess, and shared links look broken.
One subtlety worth knowing: this fetches the raw HTML, exactly as a crawler first sees it. If your tags are injected by JavaScript after load, they will not appear here — and while Google does render JavaScript, it does so on a delayed second pass, and other crawlers and social platforms often do not render at all. Tags that matter belong in the server response.
Frequently asked questions
How long should my title tag be?
Around 50 to 60 characters. Google measures pixel width rather than character count, so a title in wide capitals truncates sooner than one in lowercase. Front-load the distinguishing words, since the end is what disappears.
Does the meta description affect rankings?
Not directly — Google has been explicit about that. It affects click-through, which is what you actually want from it. A compelling description on a lower-ranked result can outperform a dull one above it.
Why does Google show different text than my meta description?
Google rewrites descriptions when it thinks page text better matches the query, which happens on a large share of results. A description closely matching your target query is more likely to survive.
Can I have more than one H1?
HTML5 permits it, and Google says it copes. But a single H1 states the page topic unambiguously, and multiple ones usually indicate the heading hierarchy is being used for styling rather than structure.
My tags are missing but I can see them in the browser. Why?
They are almost certainly injected by JavaScript. This tool reads the raw HTML response, which is what crawlers see first. Google renders JavaScript on a delayed second pass; most social platforms never do, so shared links show nothing.
Do I need a canonical tag on every page?
A self-referencing canonical on every page is good practice. It costs nothing and prevents signals splitting when a URL is reached with tracking parameters, a trailing slash difference, or an alternate hostname.
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