black-hills.com
Observed Jul 24, 2026, 17:48 UTC (9h 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
Secured byLet's Encrypt
1 subdomain · energy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat black-hills.com actually stands on - every host below is a signed observation
black-hills.com
A / AAAA
54.204.97.38
unattributedserves the site
NS
ns3.systemdns.comns2.systemdns.comns1.systemdns.com
systemdns.comanswers its DNS
MX
blackhills.mail.protection.office365.us
office365.usreceives its email
TLS
black-hills.com
Let's Encryptissued its certificate
DNS Records
A 1
54.204.97.38
MX 1
0blackhills.mail.protection.office365.us
TXT 3
v=spf1 include:spf.protection.office365.usMS=ms37647825v=DMARC1; p=reject; rua=mailto:kari@black-hills.com; fo=1
NS 3
ns3.systemdns.comns2.systemdns.comns1.systemdns.com
SOA 1
ns1.systemdns.com hostmaster.systemdns.com
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
black-hills.com |
C=US, O=Let's Encrypt, CN=E7 | Fri, 14 Aug 2026 17:03:40 +0000 |
E7 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Fri, 12 Mar 2027 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; nothing leaves your machine.
Verify this receiptPut the receipt on your own site. A live badge showing what DomainDrift observes and signs for black-hills.com. It updates itself. It attests a signed observation - not that the site is safe.
<a href="https://domaindrift.io/t/black-hills.com">
<img src="https://domaindrift.io/badge/black-hills.com.svg"
width="300" height="64" alt="DomainDrift signed observations for black-hills.com">
</a>
Ed25519 Receipt
- Receipt ID
rcpt_e416b83045d246c7- Output Hash
cfd3d37a7ba85e43c0e14e0089cda8711a2291c7bd16f7dee9b80881edac025d- Signature
ed25519:92ba26baca90a53f3b40fb5f2b1bb8aa2533b7721700a54debd751e7b0a084992f4c83aa7f14d33de18c3f7a1eadb1a2c9a49e40d3973a12a776d857a4983902- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast