🔎 SEO Audit — One-Click On-Page Checker
Paste a page's HTML and get a single SEO score across title & meta, social tags, structured data, headings, and images — all analysed locally in your browser.
What the SEO Audit Checks
This one-click checker combines the most important on-page SEO signals into a single report and score, so you don't have to run five separate tools.
- Title & meta — presence and length of the title tag and meta description, canonical URL, viewport, and indexability (robots).
- Social — Open Graph (og:title, og:description, og:image, og:url) and the Twitter card type for rich link previews.
- Structured data — whether the page ships JSON-LD structured data for rich results.
- Headings — exactly one H1, a logical H1→H2→H3 hierarchy with no skipped levels, and no empty headings.
- Images — whether every image has descriptive alt text.
How to Use It
- Open your page, view source (Ctrl+U), and copy the HTML.
- Paste it above and click Run SEO Audit.
- Fix the failed checks, re-paste, and watch your score climb.
Frequently Asked Questions
No. Everything runs locally in your browser with JavaScript. Your HTML never leaves your device.
Browsers block fetching arbitrary third-party URLs (CORS), so a privacy-first, in-browser tool works on the HTML you paste. View source (Ctrl+U), copy, and paste.
Aim for 90+. The score is the share of passed checks. A perfect score means strong on-page fundamentals, but SEO also depends on content quality, links, and performance.
Best practice is exactly one H1 describing the page's main topic. Multiple H1s can dilute the topic signal; a missing H1 removes an important relevance cue.