Signed just now
bloomberg.com
Psychevus attests that on 2026-11-07 19:05 UTC the public DNS of bloomberg.com showed the records below, earning grade C.
- Grade
- C · 66/100 (1 of 3 inbox checks pass)
- DMARC
- v=DMARC1; p=reject; adkim=r; aspf=r; ruf=mailto:dmarc-ruf@dmarc-bloomberg.com; fo=1; rua=mailto:dmarc-rua@dmarc-bloomberg.com
- SPF
- v=spf1 ip4:69.184.0.0/13 ip4:199.172.169.0/24 ip4:208.22.56.0/24 ip4:69.191.241.124 -all (0 of 10 lookups)
- DKIM
- not found under common selectors
- MX
- mgcnj1.bloomberg.com, mgcnj2.bloomberg.com, mgcny1.bloomberg.com, mgcny2.bloomberg.com
- MTA-STS
- off
- DANE
- off
- TLS-RPT
- off
- DNSSEC
- off
- CAA
- on
- BIMI
- off
How it works
What it proves
That Psychevus read your domain’s public DNS at the stated time and saw exactly these records and this grade. It’s a statement about public facts, so no login or domain verification is needed — and it can’t be edited: the Ed25519 signature covers every character.
Who it’s for
Vendor security questionnaires that ask “do you enforce DMARC?”, cyber-insurance applications, auditors, and agencies handing a fixed domain back to a client. Send the link; they verify it in one click, or offline.
Verify it yourself
The proof is a standard JWS. Fetch the keys from /.well-known/psychevus-proof-keys.json and check it with any JOSE library, e.g. jose.compactVerify(token, key) in JavaScript, or call /api/v1/proof?token=….