SPF Record Checker

Please enter a host name to check.

Example host names with SPF records:
ipswitch.com, microsoft.com, google.com, gmail.com, apple.com, postini.com, ebay.com, orange.ch, bitcointalk.org, thecannells.org, facebook.com, shaw.ca, ubs.com, kitterman.com

SPF checker created by an author of the SPF RFC4408.
http://www.kitterman.com/spf/validate.html

 

The following nameservers for the host name bitcointalk.org were found.
amy.ns.cloudflare.com
brad.ns.cloudflare.com

The following rules for the host name bitcointalk.org were found. A total of 2 queries (as defined by RFC4408) were performed for fetching SPF and related records.
The DNS lookups for SPF took 460msec.
  1. Allow all from the ip 52.45.214.107
  2. Inlcude 3 allow rules from host spf.messagingengine.com.
    1. Allow all from the range 103.168.172.128/27 (103.168.172.128 - 103.168.172.159)
    2. Allow all from the range 202.12.124.128/27 (202.12.124.128 - 202.12.124.159)
    3. Deny all IPs which do not match any previous rule
  3. Inlcude 13 allow rules from host amazonses.com.
    1. Allow all from the range 199.255.192.0/22 (199.255.192.0 - 199.255.195.255)
    2. Allow all from the range 199.127.232.0/22 (199.127.232.0 - 199.127.235.255)
    3. Allow all from the range 54.240.0.0/18 (54.240.0.0 - 54.240.63.255)
    4. Allow all from the range 69.169.224.0/20 (69.169.224.0 - 69.169.239.255)
    5. Allow all from the range 23.249.208.0/20 (23.249.208.0 - 23.249.223.255)
    6. Allow all from the range 23.251.224.0/19 (23.251.224.0 - 23.251.255.255)
    7. Allow all from the range 76.223.176.0/20 (76.223.176.0 - 76.223.191.255)
    8. Allow all from the range 54.240.64.0/19 (54.240.64.0 - 54.240.95.255)
    9. Allow all from the range 54.240.96.0/19 (54.240.96.0 - 54.240.127.255)
    10. Allow all from the range 76.223.128.0/19 (76.223.128.0 - 76.223.159.255)
    11. Allow all from the range 216.221.160.0/19 (216.221.160.0 - 216.221.191.255)
    12. Allow all from the range 206.55.144.0/20 (206.55.144.0 - 206.55.159.255)
    13. Deny all IPs which do not match any previous rule
  4. Deny all IPs which do not match any previous rule