engineering.com
Observed 2026-07-13T10:04:51.810Z (23h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byMicrosoft 365
Registered withNetwork Solutions, LLC
Also usesHubSpotGoogle Search Console
IPv6 · 6 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat engineering.com actually stands on - every host below is a signed observation
engineering.com
A / AAAA
104.26.13.68104.26.12.68172.67.72.232606:4700:20::681a:d44+2 more
Cloudflareserves the site
NS
kareem.ns.cloudflare.comliz.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
engineering-com.mail.protection.outlook.com
Microsoft 365receives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.engineering.com/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time131 ms
DNS resolutionNOERROR
Redirect chain
https://www.engineering.com/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 3
104.26.13.68104.26.12.68172.67.72.23
AAAA 3
2606:4700:20::681a:d442606:4700:20::681a:c442606:4700:20::ac43:4817
MX 1
0engineering-com.mail.protection.outlook.com
TXT 5
v=spf1 include:327305.spf02.hubspotemail.net include:servers.mcsv.net include:spf.protection.outlook.com include:_spf.google.com include:amazonses.com ~allgoogle-site-verification=IsKPdmoz77HRGCovZNR1Dkpk3SaoKfje9hOxgrLWMDwMS=ms49742654google-site-verification=wv51_62oMhfphl95JgInEEXnWm0bUBVKizuY1Cx57X0v=DMARC1; p=quarantine; pct=100
NS 2
kareem.ns.cloudflare.comliz.ns.cloudflare.com
SOA 1
kareem.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (0)
None.
Subdomains (6)
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
9bad2d0a-d313-4d31-8536-4f23c4bb85c8- Output Hash
1bfe357b1b48dde6de9dc36de73f2c909386dd0de9b78a14599020a8e9925f30- Signature
ed25519:fac710f41eb5aabb898628bcc323b7fee0199845d8745c55ee898d4e7db23fb22e82439d0d509024b537226b6b4bf577ecd0730b5b70ae54f8ebe7ea998edf04- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast