GLOBAL DNS ANYCAST RESOLVER • REAL-TIME
Free DNS Record Inspector & Lookup
Inspect live A, AAAA, MX, TXT, CNAME, and NS records across global DNS resolution nodes to verify propagation and debug routing.
Live DNS Record Inspector
Instantly query and inspect active A, AAAA, MX, TXT, NS, and CNAME DNS records for any domain.
Understanding DNS Record Types & Hierarchy
Web & Routing Records
- A: Resolves host to 32-bit IPv4 address.
- AAAA: Resolves host to 128-bit IPv6 address.
- CNAME: Canonical name alias to another fully qualified domain.
- NS: Authoritative name servers hosting the zone.
Email & Security Records
- MX: Prioritized mail destination hosts.
- TXT: Stores SPF, DKIM, DMARC, and site ownership verifications.
- CAA: Restricts which Certificate Authorities can issue SSL certs.
Frequently Asked Questions About DNS Inspection
How long does DNS propagation typically take?+
DNS propagation generally takes between 5 minutes and 24 hours depending on the TTL (Time-To-Live) value configured on the record before the change was made. Modern cloud DNS providers like Cloudflare, Route 53, and NS1 propagate changes to their global anycast edge nodes in seconds.
What is the function of MX (Mail Exchanger) records?+
MX records specify the mail servers responsible for accepting incoming email messages on behalf of a domain. Each MX record includes a priority number; mail delivery agents attempt delivery to the lowest number (highest priority) first.
What is the difference between an A record and a CNAME record?+
An A record maps a hostname directly to an IPv4 address (e.g. 192.0.2.1). A CNAME (Canonical Name) record aliases one domain name to another domain name. Per RFC 1912, CNAME records cannot coexist with other records (like MX or NS) at the zone apex (@).
Why is my newly added TXT record not showing up in DNS lookups?+
Ensure you did not accidentally append the domain name twice (a common mistake in DNS managers that results in "record.yourdomain.com.yourdomain.com"), verify that TTL has elapsed, and confirm your local DNS cache is flushed.
Complementary Domain & Email Authentication Tools
Strengthen your client email infrastructure and DNS security perimeter with our free web tools.
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SPF Record Generator
Generate RFC 7208 compliant SPF TXT records with instant syntax validation.
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SPF Lookup Calculator & Flattener
Audit the 10-lookup limit and recursively inspect nested include: mechanisms.
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BIMI Checker & VMC Validator
Audit BIMI records, preview SVG logos, and check VMC certificate readiness.
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DMARC Policy Generator
Build custom p=reject or p=quarantine policies with aggregate reporting.