Hi HN, I got tired of manually unrolling nested SPF includes to figure out which vendors are actually authorized to send email on a domain. Most checkers just give syntax validation or Pass/Fail.
I built SPF1 to instantly resolve the cryptic includes (_spf.google.com, etc.) into actual vendor names (Google, Mailchimp, Proofpoint) to easily spot unauthorized 'Shadow IT'.
It's designed to be stupidly fast (<50ms). No ads, no signup walls, just a raw lookup. Would love feedback on any major vendor signatures I might have missed.
DamonHD•1h ago
Tiny thing: your header title and what you show on the page are different ("Enterprise" vs "Visual").
bwoud•1h ago
Great catch, thank you! I was tweaking the copy right before pushing this live and completely missed that they fell out of sync. Fixing the <title> tag now so they match.
bwoud•1h ago
I built SPF1 to instantly resolve the cryptic includes (_spf.google.com, etc.) into actual vendor names (Google, Mailchimp, Proofpoint) to easily spot unauthorized 'Shadow IT'.
It's designed to be stupidly fast (<50ms). No ads, no signup walls, just a raw lookup. Would love feedback on any major vendor signatures I might have missed.
DamonHD•1h ago
bwoud•1h ago