DNS lookup
Query A, AAAA, MX, NS, TXT, CNAME, SOA, SRV, PTR, CAA and NAPTR records.
google.com
cloudflare.com
github.com
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Results
How to interpret
Compare the values with your provider’s zone. A/AAAA identify addresses, MX directs incoming mail and TXT may publish policies. Resolvers can differ because of TTL, cache or location. Keep old values before changes, verify the authoritative zone and query again after the TTL.