On-Page SEO Checker

Grade any page against its target keyword with a 14-point on-page audit.

What this tool does

The On-Page SEO Checker fetches any live page and grades it against its target keyword with a weighted score out of 100 and a 14-point checklist: keyword placement in the title, H1, meta description, URL slug, and opening paragraph; title and description lengths; heading structure; content length; keyword density; image alt coverage; internal linking; and canonical setup. Every check comes back as a clear pass, warning, or fail with the specific detail — not just a verdict.

On-page factors are the SEO you fully control. Links and authority take months to build, but a missing keyword in a title tag, a page with three H1s, or a meta description Google truncates can be fixed in minutes — and these basics still separate pages that rank from pages that don't. Most underperforming content fails an audit like this in at least three places.

Run it on your most important pages first, fix the fails, then the warnings, and re-check. For optimization beyond the checklist — the terms, entities, and coverage depth of the pages actually outranking you — SirWritesALot scores your content against the live top ten in real time.

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