blumer-lehmann.com
Observed Aug 16, 2026, 15:12 UTC (19h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Up right now
Email byMicrosoft 365
Microsoft 365Secured byLet's Encrypt
Let's EncryptAlso usesTeamViewerProton MailAtlassian
TeamViewer
Proton Mail
AtlassianIPv6 · 1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for blumer-lehmann.com in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.
INFRASTRUCTURE MAPwhat blumer-lehmann.com actually stands on - every host below is a signed observation
blumer-lehmann.com
A / AAAA
91.212.196.1552a00:17e0::cccc
2a00serves the site
NS
ns1-06.azure-dns.comns2-06.azure-dns.netns3-06.azure-dns.orgns4-06.azure-dns.info
azure-dns.com + azure-dns.net + moreanswers its DNS
MX
blumerlehmann-com01e.mail.protection.outlook.com
Microsoft 365receives its email
TLS
blumer-lehmann.com
Let's Encryptissued its certificate
DNS Records
A 1
91.212.196.155
AAAA 1
2a00:17e0::cccc
MX 1
0blumerlehmann-com01e.mail.protection.outlook.com
TXT 5
l6b68lp5k5v30eehn7okat2b57teamviewer-sso-verification=27895d310f86450fa50a03b3ac6600e0protonmail-verification=06e70351a103440c5c56dd5e9b792af127f8a21eatlassian-domain-verification=RUyAvEgoBW9RIiA9nMAZOjbi3PB7rY/dgdl4TvzkVXmoS8XVodvxGgt4n1Ts8E5Wv=spf1 ip4:217.26.54.59 ip4:212.51.144.188 include:spf.protection.outlook.com include:myr.is -all
NS 4
ns1-06.azure-dns.comns2-06.azure-dns.netns3-06.azure-dns.orgns4-06.azure-dns.info
SOA 1
ns1-06.azure-dns.com azuredns-hostmaster.microsoft.com
DMARC_RECORDS 1
v=DMARC1; p=quarantine; rua=mailto:admin@blumer-lehmann.com; ruf=mailto:admin@blumer-lehmann.com; fo=1; pct=10
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
blumer-lehmann.com |
C=US, O=Let's Encrypt, CN=YR2 | Thu, 12 Nov 2026 18:54:32 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (1)
The proof
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_45dd81ac865c3e1e- Output Hash
a9dd3bfdc1dec022077317714a2d283c879f859925caec4740ff89b2b6894e63- Signature
ed25519:565d5a6a976ca931c50d9c6c18019a83a7294beb3e230b473a1127adebecee8868471edd87f920bbb66e1fa3b1d7653d55635013107f02d32da17e47c7f30a01- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast