Domain Intelligence Tools
Use domain intelligence tools when you need a broader view of a domain's DNS health, trust posture, propagation state, or ownership details.
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Start With The Right Tool
Audit A Domain End To End
Start with a broad audit when you want quick signal on DNS, email, and common configuration risks.
Check Propagation Or Caching
Compare several public resolvers when you suspect a recent DNS change has not fully settled yet.
Validate Trust And Delegation
Review DNSSEC, glue, nameserver relationships, and delegation details when the issue looks structural.
Featured Tools
Article Topic Hubs
DNS Troubleshooting Articles
Read troubleshooting guides for propagation, mail issues, DNS misconfiguration, and common operational failures.
DNS Basics Articles
Read DNS basics articles covering records, nameservers, DNSSEC, propagation, and core lookup concepts.
Setup And Migration Guides
Read setup and migration guides for common DNS and email configuration tasks.
Browse All Domain Intelligence
Domain Intelligence
DNS Audit
Run a broad DNS and email configuration audit.
Domain DNS Summary
See a broad one-page view of key DNS records for a domain.
Delegation Checker
Compare parent delegation, child NS records, and SOA serials.
Whois Lookup
Inspect domain registration, registrar, and nameserver information.
DNSSEC Checker
Check whether DNSKEY and DS records are present.
DNS Propagation Checker
Compare answers across public resolvers.
Glue Record Checker
Inspect in-bailiwick nameservers and glue-related addressing.
Dangling CNAME Checker
Check whether a CNAME target looks dead or takeover-prone.
Featured Articles
How to Check DNS Delegation Correctly
Learn how to check DNS delegation by comparing parent and child NS records, SOA responses, and glue records to find broken or inconsistent delegation.
How to Check If an IP or Domain Is Blacklisted
Learn how to check whether an IP address or domain is blacklisted, what DNSBL results really mean, and how to interpret blocklist findings before escalating.
How to Identify a Hosted Service from DNS Clues
Learn how to identify a hosted service or platform from DNS clues such as CNAME targets, MX patterns, TXT records, and provider-specific hostname conventions.
How to Read CAA Records Correctly
Learn how to read CAA records, understand issue, issuewild, and iodef tags, and tell whether certificate issuance is properly restricted for a domain.
How to Read CNAME Chains Correctly
Learn how to read CNAME chains, understand alias targets step by step, and spot stale, looping, or takeover-prone CNAME configurations.
How to Read DKIM Records Correctly
Learn how to read DKIM records, understand selector hostnames and key tags, and spot the difference between valid publishing and weak configurations.