Read your own records
the way a receiver does.
Five analysers for the things that decide placement: your authentication records, the headers of a message that already landed, and the ramp that gets you to volume without tripping a filter. Each runs entirely in your browser — there is no backend, so nothing you paste can be logged.
SPF record analyser
Parse an SPF record, count its DNS lookups, and find what will break it.
Open analyser Technical analysis
DMARC record analyser
Grade a DMARC record on enforcement, not just syntax.
Open analyser Technical analysis
DKIM key analyser
Check a DKIM public key's strength, revocation state, and tags.
Open analyser Technical analysis
Email header analyser
Read authentication, DMARC alignment, and hop-by-hop delays from raw headers.
Open analyser Technical analysis
Warm-up schedule planner
Build a day-by-day ramp that respects per-mailbox ceilings.
Open analyserHow these fit together
Work outside in. Start with the header analyser on a message that already reached an inbox — it tells you what receivers actually concluded, which is more reliable than any record read in isolation. When it flags an authentication or alignment problem, take the relevant record to the SPF, DKIM, or DMARC analyser. Once authentication is clean and you are ready to raise volume, plan the ramp with the warm-up planner.