On-Page SEO Checker

This tool fetches one URL's HTML and inspects: technical basics (status, HTTPS, response time), document metadata (title, description, canonical, robots, viewport, language), heading structure, visible content, images and alt text, internal and external links, Open Graph and Twitter/X tags, and structured data. Each check is reported individually — this tool never combines them into a single invented score.

A meta description isn't a documented direct ranking factor, but search engines may use it as the snippet shown under a result — though they can and often do generate a different snippet from the page's actual content instead. A clear, accurate description still makes the intended snippet more likely to be used.

There's no universal required word count for a page to be useful. What tends to matter more is whether the content actually satisfies what someone searching for the topic is looking for. This tool reports word/sentence/paragraph counts as estimates, useful for spotting unusually thin content — not as a target number to hit.

Internal links help users and crawlers discover other relevant pages on the same site, and descriptive anchor text communicates what the destination is about more clearly than generic text like "click here." A link with rel="nofollow" isn't inherently bad — it's a normal way to mark a link you don't want to vouch for.

A robots meta tag can instruct compliant crawlers not to index a page (noindex) or not to follow its links (nofollow), among other directives. Not every crawler necessarily behaves identically, so this tool explains what a detected directive means rather than assuming universal behavior.

Open Graph tags (og:title, og:description, og:image, and others) influence how a shared link looks on social platforms and some messaging apps. Twitter/X-specific tags are separate and not mandatory — X may fall back to Open Graph tags depending on its own implementation.