SEO Inspector

About

SEO Inspector reads the page you're on and shows the SEO data developers actually need. Click the icon. See title, meta, canonical, robots, JSON-LD, OG cards, image alts, link inventory, hreflang. Hit Copy and the whole audit goes to your clipboard as JSON.

What it shows:

- Live SERP preview with pixel-width title and description.
- H1-H6 outline. Flags missing or duplicate H1.
- Canonical URL. Flags cross-domain canonicals red.
- Robots meta. Unmissable noindex badge if set.
- Open Graph and Twitter card preview with the image.
- Schema.org JSON-LD, pretty-printed and copyable. Almost no other tool does this.
- Image alt audit. Counts missing, decorative, and lazy-loaded.
- Link inventory with on-page nofollow overlay. Dashed red outline for nofollow, orange for sponsored, blue for UGC.
- Mobile viewport check.
- Hreflang validation. Flags invalid codes and missing x-default.
- Canonical and robots conflict detector. Catches self-canonical with noindex.
- Copy the entire audit as JSON. Cmd+Shift+C or the button.

Why pick this over the other:

- Free. No account. No telemetry. No paywall creep.
- No "read your data on all websites" install warning. The popup only reads the tab when you click it.
- JSON-LD pretty-print and copy. Hreflang validation. Nofollow overlay. The things paid tools gate.
- Copy whole audit as JSON. Pipe it into your own scripts.