Search engines and social platforms never see your webpage the way a visitor does — they read a specific, invisible layer of HTML meta tags first. This tool scans a page's meta tags and shows you exactly what those crawlers actually find.
A part of HTML older than modern search engines themselves
The <meta> tag has been part of HTML since its earliest formal specifications in the mid-1990s, originally intended as a general-purpose way to embed machine-readable metadata about a document that wasn't meant to be directly displayed to a human reader. Search engines quickly adopted specific meta tags — most notably description and, in the earliest years, keywords — as signals for how to index and represent a page in results, though search engine algorithms have evolved enormously since; Google's own guidance has confirmed for years that the meta keywords tag specifically carries no ranking weight at all in modern search, a widely misunderstood point even among experienced website owners.
What this analyzer checks
The tool inspects a page's <head> section for its title tag, meta description, canonical tag, Open Graph and Twitter Card tags (which control how the page appears when shared on social platforms), robots directives, and viewport settings — flagging missing tags, tags that are too long or too short for their optimal display length, and other common technical SEO issues that are otherwise invisible without directly inspecting a page's source code.
Where analyzing meta tags is genuinely useful
- Auditing a website's on-page SEO fundamentals — quickly checking whether pages have properly configured title tags, descriptions and canonical URLs, foundational elements of basic technical SEO health.
- Debugging how a page appears in search results — understanding whether an unexpected or truncated search snippet stems from a missing or poorly optimized meta description.
- Verifying social sharing previews — confirming Open Graph and Twitter Card tags are correctly set up before sharing a link, since a missing or misconfigured tag often results in an unappealing, generic-looking preview card.
- Competitive research — reviewing how competitor pages structure their meta tags for ideas or comparison against your own site's approach.
Frequently asked questions
Does the meta keywords tag still matter for SEO? No — Google has confirmed for many years that it does not use the meta keywords tag as a ranking signal at all, largely because the tag was heavily abused with irrelevant, stuffed keywords in the early web, making it an unreliable signal; some other, smaller search engines may treat it differently, but it carries no weight for the search engine that dominates most web traffic.
What's the ideal length for a meta description? Search engines don't enforce a strict character limit, but descriptions are typically truncated in results around roughly 150-160 characters, meaning a meta description longer than that risks having its ending cut off in a search snippet, an important practical constraint even though it's not a hard technical limit.
Why would a page's title tag differ from what actually shows in Google's search results? Google sometimes rewrites a page's displayed title in search results if it determines the actual title tag doesn't accurately or clearly represent the page's content — a well-documented behavior that underscores why writing genuinely accurate, descriptive title tags matters beyond simply satisfying a character count.
Further reading
Google Search Central — Special tags — Google's own documentation on which meta tags actually influence search behavior.
MDN — <meta> element — Full reference for the HTML meta tag and its various supported attributes.