The playground
Try any of 817 endpoints — live.
Pick an endpoint, load a working example, tweak the params, and send — no signup to try. Results render the way the data deserves; raw JSON, headers & code are one tab away.
Playground demo key · api.reefapi.com
post/email-health/v1/spf1 credit
Parse + validate the SPF record: follow include:/redirect=, count the ≤10 DNS-lookup mechanisms, flag +all and void lookups, report the all-qualifier policy.
Working example
Parameters
The domain to inspect (a bare host like github.com; a full URL, a leading www., or a full email address are accepted and normalized to the registrable domain).
request preview
curl -X POST https://api.reefapi.com/email-health/v1/spf \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"domain":"google.com"}'Hit Send to run this endpoint live.