cogent.com
Observed 2026-07-15T00:54:55.068Z (2d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Registered withNameCheap, Inc.
Also usesGoogle Search Console
1 subdomain · telecom
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat cogent.com actually stands on - every host below is a signed observation
cogent.com
A / AAAA
31.43.161.631.43.160.6
Cloudflareserves the site
NS
damian.ns.cloudflare.comkarsyn.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
smtp.google.com
Google Workspacereceives its email
HTTPS probe
redirect
Redirecting (3xx) 308 → https://www.cogent.com/
HTTP status308
Servercloudflare
TLS protocolHTTP/3
TLS issuernot observed
Behind Cloudflareyes
Response time115 ms
DNS resolutionNOERROR
Redirect chain
https://www.cogent.com/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 2
31.43.161.631.43.160.6
MX 1
1smtp.google.com
TXT 6
v=spf1 include:_spf.google.com ~allgoogle-gws-recovery-domain-verification=67106797google-site-verification=1EC0T0HPhX5TVPdSd-wRtFbupJohQ-KcS-Em8l_kUsogoogle-site-verification=pele0Z-5fnyjGbOQuvvYxvJ5xX8J-ZBU2LRbuhaMKTMv=DMARC1; p=quarantine; rua=mailto:postmaster@cogent.com, mailto:dmarc@cogent.com; pct=100; adkim=s; aspf=sv=DKIM1; (detected)
NS 2
damian.ns.cloudflare.comkarsyn.ns.cloudflare.com
SOA 1
damian.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (0)
None.
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 receiptEd25519 Receipt
- Receipt ID
eebd6572-af69-4930-852c-f31cdbeded17- Output Hash
3eaa38ef326e244d07bdfec4cb86d0d6f227570065ce87271c139e6cd8ced107- Signature
ed25519:c4fa7d2dc4846b7a417424f25c78dd383c33ac134b74c9bb86f3b31e4f37d5f12e0c3005562c180c020da82eb09c904cf7ebfc11dd77903daae953d040c8bd00- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast