Tools Specification About

PPF Record Checker

Validate Pingback Permitted From records, generate new records, and understand what each mechanism does.

Domain

Use none (reject all)

Include a (authorize source host)

a:hostname (one per line)

ip4 (one per line)

ip6 (one per line)

include:domain (one per line)

Record

PPF record

PPF record

© 2026 Charles Lecklider. Specification licensed under CC BY 4.0.

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