An On-Page SEO Checker That Catches What "Has an H1" Checkers Miss

On-page SEO means everything on the page itself that you fully control: the title tag, meta description, heading hierarchy from H1 down to H6, image alt text, internal links, and canonical tags. It is distinct from technical SEO, which covers crawlability and server status codes, and from off-page SEO, which covers backlinks earned from other sites. This checker evaluates the on-page half specifically, then folds the result into the wider SEO Health Score alongside technical, content-quality, and schema findings, because a title tag fix rarely moves rankings when the same page is also blocked from indexing or missing structured data entirely. Each on-page finding is ranked by impact vs. effort, so a broken heading hierarchy that confuses both readers and crawlers surfaces above a minor meta description wording tweak that changes far less, and the ranked list is what you see first when the free check finishes.

One free check runs the full audit in a single pass: technical, on-page, content quality, schema, and GEO readiness together, not a stripped-down on-page-only mode. On-page is one of nine weighted categories inside that SEO Health Score, worth 14% of it, because fixing a title tag rarely helps if the same page is also blocked from indexing, missing structured data, or thin on content elsewhere on the same page. Running everything together also means findings get ranked against each other by impact vs. effort, so a page-wide crawl block outranks a heading order issue even though both get flagged in the same free scan of the same page at the same time. The check completes in a minute, requires no signup to see the ranked list, and covers the entire page rather than a limited on-page-only preview of a handful of tags.

Yes — heading hierarchy is checked structurally, not just for the presence of an H1. The checker confirms there is exactly one H1 on the page, verifies that H2s and H3s nest in a logical order underneath it, and flags any heading level that gets skipped or used out of sequence, such as an H3 appearing before the first H2 on the page. That distinction matters because a page can technically have an H1 and still confuse both readers and crawlers with a scrambled outline underneath it — a failure mode a simple has-an-H1 checker cannot see at all, no matter how carefully it looks. Each flagged heading issue is ranked by impact vs. effort alongside every other on-page finding, so a scrambled hierarchy on a high-traffic page surfaces before a cosmetic one on a page few people read.

Yes, both image alt text and internal linking are checked as part of the on-page category, not treated as an afterthought bolted onto the rest of the audit. The checker flags meaningful images with missing or empty alt attributes, since those images are invisible to screen readers and to any crawler that cannot parse pixels the way a person can. It also evaluates whether the page links internally to related content in a way that helps both readers find more of the site and crawlers discover and understand how pages connect to each other across the whole domain. Both checks are ranked alongside every other on-page finding by impact vs. effort, so a missing alt attribute on a product image usually outranks the same gap on a purely decorative icon nobody depends on for meaning.

Yes — paste a URL and get a ranked list of on-page findings, plus the rest of the SEO Health Score, with no signup required. The free check runs in a minute and covers the full page, not a limited preview.