MX Record Lookup
Find mail exchanger records and priorities for a domain.
Look Up MXWebsite Tools
Check DS and DNSKEY records for a domain. Clear limitations are shown and sensitive credentials are never sent to the visitor browser.
The public URL, domain, IP address, record type, or audit option requested by the checker.
Choose only the settings that apply to the result you need; leave optional controls unchanged when you are unsure.
Start the task and wait for the interface to return its result or a clear setup message.
Results can vary by location, cache, DNS propagation and temporary server conditions. Confirm important findings with the relevant host or service.
Find mail exchanger records and priorities for a domain.
Look Up MXFind the PTR hostname associated with a public IP address.
Reverse LookupReview public IP, ASN, network provider and approximate region information.
Check IP / ASNInspect protocol hints and Alt-Svc headers for HTTP/2 and HTTP/3 support.
Check ProtocolsDetect common CDN signatures and inspect caching headers.
Detect CDNThe public URL, domain, IP address, record type, or audit option requested by the checker. Start with a representative input and use only the options needed for your intended result.
A point-in-time observation from the public target and the checks available on this page. Treat the output as a current diagnostic snapshot rather than a permanent guarantee.
Results can vary by location, cache, DNS propagation and temporary server conditions. Confirm important findings with the relevant host or service.
The checker uses the public target you enter to make a diagnostic request. Do not place credentials or private access tokens in a URL.
The page can be used without creating a visitor account. Your browser or device may limit unusually large files or demanding media jobs.
DNSSEC Checker brings the required input, options and result into one focused workflow. Check DS and DNSKEY records for a domain. The result changes when the source data or selected options change, so it is easy to run a second comparison.
The public URL, domain, IP address, record type, or audit option requested by the checker.
A point-in-time observation from the public target and the checks available on this page.
A practical way to use it is to run a fresh diagnostic after a hosting, DNS, certificate, redirect, content or performance change. Start with a representative input, inspect the first result, then adjust one setting at a time if you need a different outcome.
The checker uses the public target you enter to make a diagnostic request. Do not place credentials or private access tokens in a URL.