kernel.org
The domain kernel.org answers at IP address 172.105.4.254. Mail for kernel.org goes through 3 servers; the highest priority one is smtp3.kernel.org. It also publishes 2 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
- 172.105.4.254 281s
AAAA AAAA records
MX MX records
- 10 smtp3.kernel.org 240s
- 10 smtp1.kernel.org 240s
- 10 smtp2.kernel.org 240s
NS NS records
- ns21.constellix.com 17497s
- ns41.constellix.net 17497s
- ns31.constellix.com 17497s
- ns51.constellix.net 17497s
- ns11.constellix.com 17497s
- ns61.constellix.net 17497s
TXT TXT records
- google-site-verification=nb4Wx5xBQM3b-a3OV2KSlPL786714Y7M6GfBtJf1opQ 600s
- v=spf1 include:_spf.kernel.org ~all 600s
SOA SOA records
- ns11.constellix.com 21600s
What each record means
- A and AAAA: the server IP address, in IPv4 and IPv6.
- MX: the servers that receive the domain mail. The number is the priority; the lowest is tried first.
- NS: the name servers, which have the final say over the domain DNS.
- TXT: free text. Mostly used for SPF, DKIM and DMARC, and to verify ownership with third parties.
- TTL: how many seconds the record may be cached before asking again.
Checked 3 hours ago.