columbus.com

Observed 2026-07-12T18:23:06.416Z (13h ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding

Runs onCloudflare

Email byProofpoint

Registered withNetwork Solutions, LLC

manufacturing

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat columbus.com actually stands on - every host below is a signed observation

columbus.com

authns1.centurylink.netauth40.ns.uu.netauthns2.centurylink.netauth20.ns.wcom.com

centurylink.net + uu.net + moreanswers its DNS

mxb-002f7901.gslb.pphosted.commxa-002f7901.gslb.pphosted.com

Proofpointreceives its email

HTTPS probe

server_error Server error (5xx) 530 Server Error

HTTP status530

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time102 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

MX 2

10mxb-002f7901.gslb.pphosted.com
10mxa-002f7901.gslb.pphosted.com

TXT 1

v=spf1 mx include:_spf.principal.com -all

NS 4

authns1.centurylink.net
auth40.ns.uu.net
authns2.centurylink.net
auth20.ns.wcom.com

SOA 1

ns1.principal.com dns.principal.com

TLS Certificates (0)

None.

Subdomains (0)

None observed.

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for columbus.com. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/columbus.com">
  <img src="https://domaindrift.io/badge/columbus.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for columbus.com">
</a>

Ed25519 Receipt

Receipt ID: ebc05482-1386-4e24-8a4e-b9764c5d8ff4
Output Hash: d5296455163da999034746fa51ced2bc23f80e0e80f916c2fb1d266eaeb27adf
Signature: ed25519:8118b5ba9d2405b82da14e4ed7d1ba711e76e889fb545be048b7a4afebbf46625ab9f8fd5df463f5d3a955cba921c39e38177f0a80938261ac671b8b46abd109
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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