Check your website.
Know what to fix.
SEO comparisons, domain research and email diagnostics. Ten focused tools with readable reports, clear limits and no account required.
Website comparison
See where two websites differ.
Put metadata, headings, indexing signals and Domain Rating in one comparison. Check your own site against a competitor, then export the findings.
Compare websites01On-page signals, side by side
02Domain Rating by Ahrefs
03Sources and measurement times
04CSV reports you can keep
SEO
Compare your website and understand its backlink strength.
SEO website comparison
Compare two websites side by side: on-page checks, metadata, headings, crawl directives, links and Ahrefs Domain Rating.
Public data check · Open tool →Ahrefs Domain Rating checker
Look up backlink strength with an attributed, timestamped Domain Rating by Ahrefs.
Public data check · Open tool →Bulk Domain Rating checker
Check up to 10 websites with Domain Rating by Ahrefs. Compare measured scores and export CSV.
Public data check · Open tool →FAQ schema generator
Create JSON-LD from the questions and answers that visitors can actually read on your page.
Runs in your browser · Open tool →Domains
Research registrations, expiry dates and nameservers.
Email & security
Inspect your certificate and published email DNS configuration.
SSL certificate checker
Inspect HTTPS certificate trust, hostname match, validity dates, issuer and the negotiated TLS version.
Public data check · Open tool →SPF, DKIM, DMARC & MX checker
Inspect email DNS records in one report, with published policies, a DKIM selector lookup and MX priorities.
Public data check · Open tool →Content
Prepare readable URLs and review your writing.
Built for the work around your product
Domain tools contact public websites, DNS resolvers, registries or Ahrefs from our server. Content tools run locally in your browser. We do not scan private networks, publish your queries or promise search rankings. Each tool explains its data sources and limits before you run it.
