SecGrep
NS Tools
✓ Verified

DNS & Mail Diagnostics

Name Type TTL Value

DNS Lookup

Enter a domain above and click Query to look up DNS records.

Mail Health Score

Mail Diagnostics

Checks SPF, DKIM, DMARC, MX records, MTA-STS, BIMI, and more.

Resolver Region Answer Match TTL Latency

Propagation Check

Queries multiple global resolvers to show how widely your DNS changes have propagated.

Target must be within a domain you have verified. Requires domain ownership verification.

PING
SeqBytesTTLTime
TRACEROUTE
HopHostIPTimes

Network Tools

Ping or traceroute a domain you have verified. Useful for diagnosing routing and latency.

Verify Domain Ownership

To access DNS tools, prove you control a domain by adding a DNS TXT record. Your access code will be valid for 7 days.

Domain you control

Add This DNS Record

Add the following TXT record to , then click Verify. DNS changes can take a few minutes to propagate.

Name
TypeTXT
Value

Domain Verified!

You can now use all DNS, Mail, and Propagation tools.