Comprehensive DNS tools to look up records, check propagation, and verify your domain configuration. Debug issues fast.
Look up any DNS record type (A, AAAA, MX, TXT, CNAME, NS, SOA, SRV) for any domain. Essential for debugging DNS issues.
Check DNS record propagation across multiple DNS servers globally. See how your DNS changes are spreading worldwide.
Check reverse DNS (PTR) records for any IP address. Essential for email deliverability verification.
Look up MX records for any domain to see which mail servers are configured to receive email.
Find all DKIM selectors configured for a domain. Automatically checks 25+ common selector names.
Check if a domain has BIMI configured for brand logo display in email clients. Verify your brand identity.
Instantly check your current IP address and connection details. Quick and simple IP detection.
Instantly analyze any domain's email security configuration including SPF, DKIM, and DMARC records.
Understanding different DNS record types and their purposes.
Maps domain to IPv4 address
Maps domain to IPv6 address
Mail exchange servers
Text records (SPF, DKIM, etc.)
Canonical name alias
Name server records
Start of authority
Reverse DNS pointer
Common questions about DNS and domain configuration.
DNS (Domain Name System) is like the phone book of the internet. It translates human-readable domain names (like example.com) into IP addresses that computers use to communicate.
DNS records are cached by servers worldwide. When you make changes, it takes time for all these caches to expire and fetch the new records. This process typically takes 24-48 hours.
A PTR (Pointer) record is used for reverse DNS lookups - converting IP addresses back to domain names. It's crucial for email deliverability as many servers check PTR records to verify senders.
For email, you typically need MX records (mail servers), SPF (sender authorization), DKIM (message signing), and DMARC (policy enforcement). Our tools can check all of these.