DNS tools

Choose a workflow by symptom or inspect one DNS record type across major public resolvers.

Troubleshooting workflows

ADNS lookupQuery A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA records across major public resolvers.ADNS propagation checkerCompare public resolver answers to see whether DNS changes are appearing consistently.ADNSSEC checkerInspect resolver behavior for DNSSEC-related symptoms such as SERVFAIL patterns.

Record lookups

AA record lookupCheck IPv4 address records and compare TTL, response time, and answer consistency.AAAAAAAA record lookupCheck IPv6 DNS records across public resolvers and identify inconsistent answers.CNAMECNAME lookupCheck canonical name records and detect conflicts with other record data.MXMX lookupCheck mail exchanger hosts and priorities across public resolvers.TXTTXT record lookupCheck TXT records used by SPF, DKIM, DMARC, site verification, and other services.NSNS lookupCheck nameserver records and spot delegation differences.SOASOA lookupCheck start-of-authority records and compare serial values where available.CAACAA lookupCheck certificate authority authorization records for issuance restrictions.