Internet & networks

Website health check

Enter a domain or URL to check DNS, HTTPS certificates, homepage responses, domain expiry and redirects. Start with clear explanations, then explore the technical details.

For public websites. Full URLs are reduced to the domain homepage; paths, query parameters and login details are not submitted.

One check covers

Finding the website
Encrypted connection and certificate
Homepage response
Automatic HTTPS redirect
Domain expiry
The matching www address

Good to know

Who is this tool for?+

Anyone who wants to understand whether a website responds normally. If a site fails to open, shows a certificate warning or redirects unexpectedly, share the report with a friend, support team or website operator.

Does a passed check mean a website is safe?+

No. This checks public DNS, connections, certificates and response status. It does not assess content, reputation, transaction reliability or malware.

Why can I open a site when the check cannot?+

The checking location differs from your network. Sites may also restrict automated requests or the HEAD method. Read the status and details; one failed check does not establish that all users cannot access the site.