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Generate, validate, check and lookup your SPF record online

 SPF Record Lookup

 SPF Record Lookup
use cases

UseSPF Record Lookup, if you want to

  • Check SPF TXT record published in DNS for the domain
  • Check if SPF record's elements and syntax correspond to SPF's specification (RFC7208)
  • Check published SPF record's tree hierarchy of DNS lookups
  • Check all IPs and IP ranges included in SPF
  • Check for the presence of multiple SPF records in DNS, which do lead to SPF record's "permerror" according to SPF's specification
  • Check SPF record's length for not exceeding 450 octets, which may lead to SPF record validation error (RFC7208, section 3.4)
  • Check SPF record for "10 DNS Lookup" limitation, which causes "permerror" according to SPF's specification
  • Check SPF record for recursive include which causes "permerror"
  • Check SPF record for not exceeding "2 Void DNS Lookups", which do lead to SPF record validation error (RFC7208, section 4.6.4)
  • And many more

 SPF Record Generator

Go to SPF Record Generator

 SPF Record Generator
use cases

UseSPF Record Generator, if you want to

  • Create SPF TXT record and publish it in DNS
  • Read about all SPF's mechanisms and terms to easily configure SPF Record
  • Validate SPF record's text corresponds to specification before publishing it in DNS
  • And many more

 SPF Record Raw Checker

 SPF Record Raw Checker
use cases

UseSPF Record Raw Checker, if you want to

  • Validate your SPF TXT record before publishing it in DNS
  • Check SPF record's text corresponds to specification
  • View SPF record's tree hierarchy with validations
  • View all nested IPs and IP ranges included in SPF's tree hierarchy
  • Check existance of multiple SPF records, which is error described in SPF's specification
  • Check against SPF Record's "10 DNS Lookup" limitation, which is serious error described in SPF's specification
  • Check SPF record against recursive include which causes "permerror"
  • Check SPF record against "2 Void DNS Lookups" limitation, which do lead to "permerror" validation error according to specification (RFC7208, section 4.6.4)
  • And many more