SEO Audit Tool – Check Any Page in Seconds

What Is an On-Page SEO Audit?

An on-page SEO audit is a health check of a single web page. It looks at everything on the page itself that helps — or hurts — its chances in search results: the title tag, the meta description, the headings, the images, the links and the code underneath. Before a page can rank, search engines have to be able to crawl it, understand what it is about, and trust that it will display properly on any device. An audit checks each of those basics, one by one, and tells you which ones are missing or weak.

This tool does the same job automatically. It fetches the page you give it, runs 16 checks, and turns the results into a score out of 100 plus a checklist written in plain language. Every failed or borderline item comes with the reason it matters and the fix, so you can work through the list even if you are new to SEO. It is a first diagnostic, not a full replacement for tools that track rankings, backlinks and site-wide crawling — but for the question "is this page itself built properly?", it gives you the answer in seconds.

The Checklist This Tool Runs

1. Title tag — present, and 30–60 characters so it displays fully in search results.
2. Meta description — present, and 120–160 characters, so your snippet sells the click.
3. Exactly one H1 — one clear main heading that states the page's topic.
4. H2 sub-headings — the content is broken into scannable sections.
5. Canonical URL — set, and pointing at the page itself, so ranking signals aren't split.
6. Indexing allowed — no accidental noindex tag keeping the page out of Google.
7. Mobile viewport — the tag that lets the page adapt to phone screens.
8. Open Graph tags — so links shared on social media and chat apps show a proper preview.
9. Image alt text — every content image described, for accessibility and image search.
10. Content length — at least ~300 words, enough for a search engine to understand the page.
11. Internal links — the page links onward to other pages of the site instead of being a dead end.
12. HTTPS — the page is served securely.
13. Title matches the H1 — the two most important labels describe the same topic.
14. Heading order — no skipped levels (an H1 jumping straight to an H3 muddles the outline).
15. HTML size — the page code is light enough not to slow loading down.
16. Language declared — a lang attribute so browsers and search engines know the page's language.

Why Each Item Matters

The title and description are your advert in the search results — they decide whether anyone clicks. Headings are the page's table of contents: they help Google understand the topic and help readers scan. Alt text is how visually impaired readers and image search "see" your pictures. Internal links spread your site's authority around and keep visitors moving. HTTPS and the viewport tag are baseline trust and usability signals that Google has used as ranking factors for years. None of these are tricks — they are the basic craft of building a page properly, and this audit simply checks whether they have been done.

A high score here doesn't guarantee rankings — competition, backlinks and content quality matter too. But a low score almost always points to simple, fixable problems that are quietly holding the page back. Fix the red items first, then the amber ones, and re-run the audit to watch the score climb.

SEO Audit FAQ