Lookup tree for gmail.com

Click a node to reveal its SPF text. Lookups beyond the 10^th are highlighted in red.

• initial: gmail.com

  v=spf1 redirect=_spf.google.com

  • redirect=_spf.google.com (lookup #1)

    v=spf1 include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com ~all

    • include: _netblocks.google.com (lookup #2)

      v=spf1 ip4:35.190.247.0/24 ip4:64.233.160.0/19 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:108.177.8.0/21 ip4:173.194.0.0/16 ip4:209.85.128.0/17 ip4:216.58.192.0/19 ip4:216.239.32.0/19 ~all
    • include: _netblocks2.google.com (lookup #3)

      v=spf1 ip6:2001:4860:4000::/36 ip6:2404:6800:4000::/36 ip6:2607:f8b0:4000::/36 ip6:2800:3f0:4000::/36 ip6:2a00:1450:4000::/36 ip6:2c0f:fb50:4000::/36 ~all
    • include: _netblocks3.google.com (lookup #4)

      v=spf1 ip4:172.217.0.0/19 ip4:172.217.32.0/20 ip4:172.217.128.0/19 ip4:172.217.160.0/20 ip4:172.217.192.0/19 ip4:172.253.56.0/21 ip4:172.253.112.0/20 ip4:108.177.96.0/19 ip4:35.191.0.0/16 ip4:130.211.0.0/22 ~all