Domain DNS check

Check DNS records, inter-resolver propagation, DNSSEC, mail records, and CNAME chaining.

What do DNS records mean?

The check shows how the domain and related services are configured on different DNS resolvers.

IPv4 address to which the domain is directed. Using this entry, browsers find the site server.

IPv6 domain address. Needed to access the site using the modern IPv6 protocol.

Domain Alias: Directs the name to another domain name rather than directly to an IP address.

Servers that accept domain mail. The priority determines the order in which they are used.

Text service records. Often contain SPF, confirmation of domain ownership and service settings.

Authoritative DNS servers that store domain settings and are responsible for its zone.

Basic zone record: primary DNS server, admin contact, and zone update options.

Limits the CAs that are allowed to issue SSL/TLS certificates for a domain.

Digital signature of the DNS zone. Helps protect against DNS response spoofing.

Rule for processing emails that do not pass SPF or DKIM. Reduces the risk of email spoofing on behalf of a domain.

Reverse DNS record: Associates an IP address with a domain name. Important, in particular, for mail servers.

The length of time an entry is stored in the resolver cache. A lower TTL allows DNS changes to be applied faster.