Website SEO check
Read a site the way a crawler does, rather than the way your browser renders it.
What gets checked
Crawl Rules
The crawl rules the site publishes for search engine bots
Quality Metrics
Lighthouse scores for performance, accessibility, SEO and best practice
Redirect Chain
The full chain of redirects before the final page loads
Carbon Footprint
Estimated CO2 from the data needed to load the page
Sitemap
The pages a site lists in its own sitemap
Linked Pages
Internal and external links found in the page's anchor tags
Archive History
How the site has changed over time, via the Wayback Machine
Global Ranking
Tranco rank, if the site is in the global top million
Screenshot
A full-page render of the site, as a browser sees it
What this tells you
Crawlers see a different page than visitors do. Robots rules, canonical tags, sitemap entries and Open Graph markup never render on screen, so a mistake in any of them can sit there for months without anyone noticing.
This is the layer where "it looks fine to me" stops counting as evidence.