cerner.com
Observed 2026-07-15T10:46:31.465Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.
Not responding
Runs onCloudflare
Email byMicrosoft 365
Registered withMarkMonitor Inc.
Also usesMiro
10 subdomains · fortune_500
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat cerner.com actually stands on - every host below is a signed observation
cerner.com
A / AAAA
159.140.213.205
Cloudflareserves the site
NS
ns4.cernerns.comns3.cernerns.com
cernerns.comanswers its DNS
MX
cerner-com.mail.protection.outlook.com
Microsoft 365receives its email
HTTPS probe
server_error
Server error (5xx) 520 Server Error
HTTP status520
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time354 ms
DNS resolutionNOERROR
Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
159.140.213.205
MX 1
10cerner-com.mail.protection.outlook.com
TXT 33
v=spf1 include:spf.protection.outlook.com include:_spf.cernercloud.com include:spf.cernerasp.com ip4:159.140.2.112/30 ip4:159.140.2.135/32 ip4:159.140.2.136/32 ip4:20.49.19.140/32 ip4:199.21.28.112/28 ip4:185.174.48.0/26 -allCerner Corporationwebexdomainverification.52f792bcd2ea5139e053ad06fc0a594f=2c342619-a14b-4c89-b90d-d9864f7c8427cerner-client-id=df609275-2d00-4e6b-93db-719790944624cerner-client-id=97b10a52-72bc-43e9-b6bd-049ddce7c725cerner-client-id=ec4356ee-ee82-456b-897c-c9533bae9615miro-verification=c41c7bd02b2c7d5e2cd0c38f7e5b60894cf91782_8la6fv4u6gqtje49x05pzgmddd0hhhvlogmein-verification-code=083ae89f-63d8-4922-ac97-581965cbf9b9cerner-client-id=4b3d7dc0-bab4-4a41-b867-43cf7d861dcb
NS 2
ns4.cernerns.comns3.cernerns.com
SOA 1
ns3.cernerns.com please_set_email.absolutely.nowhere
TLS Certificates (0)
None.
Subdomains (10)
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 receiptEd25519 Receipt
- Receipt ID
b34e2530-c0cc-475a-9cf3-deceba2d1592- Output Hash
b2c6eba0138394087483f7b86c1dfd0f044999793ac00dab6909151b55c16563- Signature
ed25519:c15f99e803e47b51931529a0318aea06c91110ce7869fad7775a65ac9b674bd576a884477541bebd8ed85e6a993235954df277b0a6fe5a4afb39a3c8beab5a0c- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast