mcgrawhill.com
Observed Aug 12, 2026, 05:48 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.
mcgrawhill.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting mcgrawhill.com under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.
Watch mcgrawhill.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Facebook/Meta
Google Search ConsoleDNS Records
A 1
204.74.99.100
TXT 4
v=spf1 -allfacebook-domain-verification=40u5ibeqom7r6atz2j0adiqwrrjzwjfacebook-domain-verification=rjbziyyadpqhm44elpvd6nsy244txugoogle-site-verification=aoL6icq1zN7uqGilRmj9JAFerq3gCpjFsB63ZhriIaQ
NS 4
pdns85.ultradns.bizpdns85.ultradns.compdns85.ultradns.netpdns85.ultradns.org
SOA 1
corp-hts-ns1.mcgraw-hill.com hostmaster.mcgraw-hill.com
DMARC_RECORDS 1
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
TLS Certificates (0)
None.
Subdomains (0)
None observed.
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_8c5479efff87c625- Output Hash
55696ecef71965b8c4c696cd8d2024baac2071a5e7f9180d88534f37aeda5d10- Signature
ed25519:5f1da9d52974e804173acd87edc8c040aec8d33b43b3e16980b9969117a720f9463ae5e02c06d60cb82ef674b6338207688f0711ca1046d5b595b731539a5108- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast