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 gmail.com were found.
ns2.google.com [216.239.34.10]
ns1.google.com [216.239.32.10]
ns3.google.com [216.239.36.10]
ns4.google.com [216.239.38.10]

The following rules for the host name gmail.com were found. A total of 1 queries (as defined by RFC4408) were performed for fetching SPF and related records.
The DNS lookups for SPF took 233msec.
  1. Redirect to host _spf.google.com with 9 rules.
    1. Allow all from the range 74.125.0.0/16 (74.125.0.0 - 74.125.255.255)
    2. Allow all from the range 209.85.128.0/17 (209.85.128.0 - 209.85.255.255)
    3. Allow all from the range 2001:4860:4000::/36
    4. Allow all from the range 2404:6800:4000::/36
    5. Allow all from the range 2607:f8b0:4000::/36
    6. Allow all from the range 2800:3f0:4000::/36
    7. Allow all from the range 2a00:1450:4000::/36
    8. Allow all from the range 2c0f:fb50:4000::/36
    9. Soft deny all IPs which do not match any previous rule