DNS Record Lookup
Check the DNS records of a domain name
Features
Supports 8 record types
Select and retrieve A, MX, TXT, NS, CNAME, and more
Batch check up to 10 domains
Look up multiple line-separated entries in parallel to save time
Specify the DNS server to query
Specify any DNS server IP to retrieve the answer
Supports reverse lookup from an IP
Enter an IP address to retrieve the host name from the PTR record
How to use
Enter the domain name or IP
Enter the domain name or IP address to check, specifying up to 10 entries at once, separated by line breaks
Select the record types
Check only the types you want to retrieve, and optionally specify the IP of the server to query in the DNS server field
Run the lookup with the Check button
Press the Check button to query DNS on the server side and display results for each domain
Review and copy the record values
Open the accordion for each domain and copy each record value with the copy button
Use cases
Checking propagation after a server migration
After changing settings, check periodically while waiting for the new values to take effect
Investigating mail delivery failures
Inspect MX and TXT records, including SPF, for misconfigurations or omissions
Isolating issues during a site outage
When a site won't load, verify name resolution to determine whether DNS is the cause
Routine inspection of domain settings
Look up the NS and CNAME records of multiple domains together to detect unintended changes
Investigating suspicious access sources
Reverse-lookup an IP address found in logs to identify the host name of the source
Safety and privacy
Server-side processing
Processed temporarily on the server and discarded after the result is returned. Only the information needed for the lookup is sent.
Temporary processing only
For DNS record lookups, temporary processing occurs on the server, then data is discarded after results are returned.
Communications encrypted with HTTPS
All sent and received data is encrypted by TLS and cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
Sent only to DNS servers
The domain or IP you enter is sent only to DNS servers for record lookups.
Updates
- update #63
Support domains starting with underscore in DNS record checker
Bug fixDNS Record Lookup