Website diagnostics

Free Domain Health & Website Checker

Review a public website’s DNS, registration dates, HTTPS handshake, initial HTML, robots file and XML sitemap in one place.

  • DNS and TLS
  • Initial HTML checks
  • Crawl-file observations
Your check starts here

Check domain health

Inspect a public website’s fetched HTML, DNS records, registration dates, TLS handshake, robots file, and XML sitemap.

Start here

How to use this tool

Follow these steps to get observations you can interpret and act on.

  1. Enter your public website

    Use the public HTTP or HTTPS address of the page you want to inspect. Private network destinations are not supported.

  2. Run the domain check

    Wait for the individual DNS, registration, TLS, HTML and crawl-file observations to complete.

  3. Prioritize specific findings

    Check unavailable evidence separately from configuration warnings. Confirm page-wide issues against other important URLs on your site.

Behind the check

How the domain health test works

The domain health checker combines real DNS lookups and network responses to help website owners find configuration and crawlability issues. Its HTML observations cover the page returned by the server, rather than a full browser-rendered crawl.

Results come from actual DNS and network responses. HTML checks inspect the initial response, not JavaScript-rendered content. Each unavailable check is identified separately.

Understanding your results

  • A title or description found in the initial HTML is useful crawl evidence, but it does not guarantee indexing or ranking.
  • Robots and sitemap responses describe accessible files at test time. Search engines make their own crawl and indexing decisions.
  • Registration or network data can be unavailable independently of the website. Missing data is not a fabricated failure or health score.
Know the scope

Privacy & important limitations

  • The entered public URL is sent to the application server for fetching. Avoid URLs containing passwords, private tokens or sensitive query parameters.
  • This is a diagnostic snapshot, not a complete security audit or a JavaScript-rendered SEO crawl. Review Search Console alongside these observations.
Interpret the evidence

Measured findings include their source and scope. An unavailable check is never counted as a pass, a threat or a score.

Common questions

Frequently asked questions

Does a healthy result guarantee Google indexing?

No. Technical accessibility is one part of indexing. Search engines also evaluate page content, duplication, links and their own crawl decisions.

Why is content missing from the HTML findings?

The checker inspects the initial server response. Content inserted later by JavaScript may need a rendered browser or search-engine inspection to evaluate.