DNS lookup
See the DNS records for a domain: addresses, mail servers, name servers, TXT records such as SPF, and more, with each record's time to live.
Lookups go to Cloudflare's public DNS (1.1.1.1). Nothing is sent to Helpnyx.
How to use it
Three steps
- Enter a domain. Just the name, such as example.com. Pasting a web address works too.
- Choose records. All common records, or one type such as MX.
- Copy what you need. Copy single values, or every record in zone-file format.
Questions
Good to know
What is TTL?
Time to live: how many seconds resolvers may cache the record before asking again.
Why do I see different answers elsewhere?
Records can change, and caches keep old answers until their TTL runs out. Large services also answer differently by location.
Who answers these lookups?
Cloudflare's public DNS service (1.1.1.1), asked directly by your browser.
More free tools
Other tools you may need
IP lookup
Who holds an IP address: owner, ASN, country, abuse contact.
Open the toolReverse DNS lookup
Find the PTR name for one or many IP addresses.
Open the toolFCrDNS check
Check that an IP's reverse name points back to it.
Open the toolMAC vendor lookup
Find the maker of a network device from its MAC address.
Open the toolIPv4 subnet calculator
Network, broadcast, usable range and masks for any block.
Open the toolIPv6 subnet calculator
First and last address, size, /64 count and reverse zone.
Open the tool
Still tracking IPs in a spreadsheet?
IPAM Enterprise keeps every /24, block, customer and circuit in one portal, and checks each assignment for overlaps before it is saved.