10
records
IPv4 Addresses
TTL
gnu.org. 1800 IN A 209.51.188.116
IPv6 Addresses
TTL
gnu.org. 1800 IN AAAA 2001:470:142:5:0:0:0:116
Name Servers
TTL
gnu.org. 1800 IN NS ns1.gnu.org. gnu.org. 1800 IN NS ns2.gnu.org. gnu.org. 1800 IN NS ns4.gnu.org.
SOA Details
TTL
SOA
Primary NS
30m
Responsible
hostmaster.gnu.org
0m
Serial
2025072205
0m
Times
Refresh
1h
Retry
2m
Expire
14d
Minimum TTL
1h
gnu.org. 1800 IN SOA ns1.gnu.org. hostmaster.gnu.org. 2025072205 3600 120 1209600 3600
DMARC
TTL
gnu.org. 1800 IN DMARC v=DMARC1; p=none; rua=mailto:[email protected]
Certificate Authority Authorization
TTL
CAA
Let's Encrypt
30m
gnu.org. 1800 IN CAA 0 issue "letsencrypt.org"
Text Content
TTL
TXT
SPF
v=spf1 ip4:209.51.188.0/24 ip4:74.94.156.208/28 ip6:2001:470:142::/48 ip6:2603:3005:71a:2e00::/64 ~all
30m
gnu.org. 1800 IN TXT "v=spf1 ip4:209.51.188.0/24 ip4:74.94.156.208/28 ip6:2001:470:142::/48 ip6:2603:3005:71a:2e00::/64 ~all"