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Lookproof SPF Record Parser
x402
Lookproof SPF Record Parser is a paid API for AI agents from api.lookproof.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Parses a raw SPF record string (without DNS) into mechanisms, qualifiers, modifiers, syntax errors, the 'all' policy, and DNS lookup count with coded findings per RFC 7208.
Price / call$0.002
Success—
StatusUnknown
How this service works
Check SPF, DMARC, DKIM, MTA-STS, DNSSEC and more, with results that explain what was found and why. Free browser checks and a pay-per-request API with x402.
Output
A structured breakdown of the SPF record including: each mechanism with its qualifier (e.g. +, -, ~, ?) and value, any modifiers (redirect, exp), detected syntax errors, the 'all' policy qualifier, the total number of terms requiring DNS lookups, and coded findings such as +all (overly permissive), ptr (deprecated mechanism), or exceeding 10 DNS lookups.
Example use cases
Pre-publish SPF record audit
“Before I add this SPF record to my DNS, can you check it for syntax errors, count the DNS lookups, and flag anything risky like +all or ptr usage: 'v=spf1 include:_spf.google.com include:sendgrid.net include:mailgun.org mx ~all'?”
Diagnosing SPF lookup limit breach
“My emails are failing SPF checks and I think I've exceeded the 10 DNS lookup limit. Can you parse this SPF record and tell me exactly how many lookups it requires: 'v=spf1 include:_spf.google.com include:spf.protection.outlook.com include:sendgrid.net include:mailgun.org include:spf.mandrillapp.com ~all'?”
Checking SPF policy strictness
“Can you analyze this SPF record and tell me what the 'all' policy is set to and whether it's strict enough for good deliverability: 'v=spf1 ip4:192.168.1.0/24 mx +all'?”
Technical details
Endpoint
POSThttps://api.lookproof.dev/v1/mail/spf-parse?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to validate an SPF record string locally (without performing live DNS lookups) — ideal for pre-publish checks, CI/CD pipeline validation, or when you have the raw record text and want to catch issues like syntax errors, +all policies, deprecated ptr mechanisms, or exceeding the 10-lookup limit before the record goes live.
Side effects
- Empty or missing record field returns validation error
- Record exceeding 4096 characters is rejected
- Malformed input that is not a string returns schema error
- Network or server errors return 5xx responses
- Payment failure or missing x402 authorization returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| record | string |
Tags
x402
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