check_spf

shallow

ai.intodns/scanner · Verify this server

Read-only SPF parse and validation for a domain. Recursively walks include/redirect mechanisms to build the full lookup graph, counts DNS lookups against the RFC-7208 10-lookup limit, and returns flattening guidance when the count is close to or over the limit. Returns parsed mechanisms, lookup graph, total count, qualifier (~all / -all / +all), and warnings. Use for SPF auditing or before adding new include: senders; use check_email_security for the broader SPF+DKIM+DMARC overview. No auth, no side effects.

100.0/100

1 trials · measured 8 days ago

check_spf scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against ai.intodns/scanner, measured 25 Aug 2026 under methodology v0.2.0. Every measured component scored 100.

Component breakdown

ComponentWeightValue
Reliability35%not applicable
Schema integrity25%100.0
Failure behaviour15%not applicable
Latency15%not applicable
Concurrency10%not applicable

Tool details

Transport
remote + stdio
Credential class
open
Category
Communication
Input schema
not declared
Output schema
not declared
Side-effect classification
unclassified

Score history

DayScoreTierMethodology
2026-08-25100.0shallowv0.2.0

Probe evidence

ProbeOutcomes
schema_integritypass: 1

Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.

Embed this score

Available for every tool, scored or not — not a verification perk. Always links back to this page.

Vouch score: check_spf
[![Vouch score](https://vouch.tools/api/tools/13bdbe15-c52c-4cda-8547-efb60d03fb41/badge.svg)](https://vouch.tools/tools/13bdbe15-c52c-4cda-8547-efb60d03fb41)
check_spf — Vouch