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dns tools

DNS Tools

DNS lookup, propagation, reverse DNS, SIP DNS, MX, and record validation tools for troubleshooting domains.

Tools

Open a dedicated page for details, or jump into the TraceRoo toolbox from each tool page.

dns toolsDNS Lookup ToolLook up DNS A, AAAA, CNAME, MX, TXT, NS, SOA, SRV, and CAA records. dns toolsDNS Propagation CheckerCompare DNS answers across public resolvers to spot cache drift after DNS changes. email toolsMX LookupCheck a domain's mail exchangers, priorities, and basic email routing warnings. dns toolsReverse DNS LookupFind PTR hostnames assigned to an IPv4 or IPv6 address. email toolsSPF / DMARC / DKIM CheckerCheck SPF, DMARC, and DKIM DNS records for email authentication troubleshooting.

Recommended Guides

All guides
dns guideDNS Lookup vs DNS PropagationUnderstand when to use a DNS lookup and when to compare DNS propagation across public resolvers. dns guideDNS TTL ExplainedUnderstand DNS TTL values, resolver cache behavior, and why DNS changes can appear at different times. dns guideSIP DNS SRV RecordsLearn how SIP SRV records help phones and trunks find the right host, transport, and port.