How is this different from the meta tag generator?

The generator builds tags from a form. The analyzer fetches a live URL and shows the tags that are already on the page, including problems such as a missing canonical, a noindex robots value, or a description that will truncate in search results.

Does it execute JavaScript?

No. We fetch the first HTML response, which is what most crawlers still start from. Client-rendered titles injected after load will not appear. If your site is a SPA, check the server-rendered HTML or prerender output.

What title and description lengths are flagged?

Titles over about 60 characters and descriptions over about 160 characters are flagged because Google typically truncates around those lengths. Short titles under 15 characters and descriptions under 50 are also called out as weak snippets.

Why don’t I see tags my React app injects?

We do not run JavaScript. If titles are set only in the client, crawlers that do not render JS will miss them too. Prerender or server-render the tags.

Is a missing description a ranking penalty?

Google may generate a snippet from the page instead. It is not a manual penalty, but you lose control of the SERP copy. Add a unique description.

Does this store the page HTML?

No. The fetch is used to build the report and is not kept as a copy of your site.

Meta Tag Analyzer — Title, Description & OG Tags

How to use Meta Tag Analyzer

The Meta Tag Analyzer fetches a public page and extracts the tags crawlers actually read: title, meta description, canonical, robots, viewport, Open Graph, Twitter/X cards, hreflang, and JSON-LD types. It is the counterpart to the Meta Tag Generator — that tool builds tags from a form; this one shows what is live on the URL. JavaScript is not executed, so you see the first HTML response, which is still the starting point for Googlebot and most other crawlers.

Paste the page URL. A bare hostname is treated as https://.
Click Analyze. We fetch the HTML with SSRF protections and a 1 MB cap.
Read the snippet preview, then the canonical, robots, OG, and Twitter fields.
Fix anything in the issue list, republish, and re-run the same shareable URL.
Open the generator if you need to draft replacement tags, or the Website Analyzer for headings and SSL.

What to look for in the snippet

Google typically displays about 50–60 characters of the title and about 150–160 of the description. Longer values are truncated; very short values look thin and get rewritten. One H1 should match the topic of the title. The canonical should be an absolute URL that you actually want indexed — a canonical pointing at a noindex URL or a different template is a common CMS bug. If robots or X-Robots-Tag includes noindex, the rest of the on-page work will not produce a listing until that is removed.

Open Graph versus the HTML title

Search engines primarily use title and meta description. Social platforms primarily use og:title, og:description, and og:image, with twitter:card as a fallback on X. When OG tags are missing, Facebook and LinkedIn often fall back to the HTML title, which is why a page can look fine in Google and wrong in Slack. Set both. Keep og:image at least 1200×630 when you can, and make og:url match the canonical. This analyzer lists the tags; it does not render a pixel-perfect social card — use Open Graph Preview for that.

Tag jobs
Tag	Primary consumer
title	Google SERP, browser tab
meta description	Google SERP snippet
canonical	Duplicate consolidation
og:*	Facebook, LinkedIn, Slack
twitter:*	X / Twitter cards

Worked examples

Live homepage tags

Inputs: https://example.com

Result: Title, description, canonical, and OG tags listed

Missing description flagged

Inputs: A page with no meta description

Result: Issue: description missing; SERP preview uses title only

noindex spotted

Inputs: A staging URL with robots noindex

Result: robots field shows noindex before you ship

Glossary

Open Graph: Meta tags (og:title, og:description, og:image) that control social-link previews.
Canonical: The preferred URL for a page, used to merge duplicates in search.
noindex: A robots instruction that asks search engines not to include the URL in the index.
JSON-LD: Structured data embedded in a script tag for Schema.org types such as Article or FAQPage.
hreflang: Link annotations that tell search engines which language or region version of a URL to show.

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Meta Tag Analyzer

How to use Meta Tag Analyzer

What to look for in the snippet

Open Graph versus the HTML title

Worked examples

Glossary

Related reading

Frequently Asked Questions

Why use Meta Tag Analyzer?

Common use cases

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