Free tool — no signup required

Audit any page’s on-page SEO for free.

14 checks in one pass — title, meta description, canonical, H1, OpenGraph image, image ALT coverage, indexability, Twitter Card, structured data and more, each graded critical / important / minor.

Try:
Running the 14-point audit in real time…
https://stripe.com/en-de 200 OK ⚡ 338.18 ms
86
SEO score
Strong on-page SEO
Most of the 14 checks pass.
✓
Title tag present with optimal length (10-70 chars)
Critical
✓
Meta description present with optimal length (50-160 chars)
Critical
✓
Canonical link tag present
Important
✓
Primary H1 heading present (2 found)
Critical
✓
OpenGraph image present for social sharing
Important
✓
Favicon icon present
Minor
!
Low image accessibility ALT coverage (23.5% of images have ALT text)
Important
✓
HTTPS secure protocol active
Critical
✓
HTML lang attribute present ('en-DE')
Important
✓
Responsive viewport meta tag present
Important
✓
Page is indexable (no noindex directive)
Critical
!
Multiple <h1> headings found (2) — should typically have exactly one
Minor
✓
Twitter Card meta tag present for social sharing
Minor
✓
Schema.org structured data (JSON-LD) present
Minor

The SEO audit is one of nine checks in the full API — tech stack detection, security-header grading, public contacts, product data, and AI-ready Markdown, all from the same one HTTP call. Free tier, 1,000 requests/month, no card required.

Try the full API free →