knowbe4.com
Observed 2026-07-15T08:27:50.572Z (5h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Registered withAmazon Registrar, Inc.
Also usesGoogle Search ConsoleDockerAtlassian
13 subdomains · cybersecurity_expanded
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat knowbe4.com actually stands on - every host below is a signed observation
knowbe4.com
A / AAAA
18.244.214.9418.244.214.5318.244.214.4318.244.214.73
Cloudflareserves the site
NS
ns-1882.awsdns-43.co.ukns-853.awsdns-42.netns-38.awsdns-04.comns-1036.awsdns-01.org
awsdns-43.co.uk + awsdns-42.net + moreanswers its DNS
MX
aspmx5.googlemail.comaspmx.l.google.comalt2.aspmx.l.google.comalt1.aspmx.l.google.com+3 more
Google Workspacereceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.knowbe4.com/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time63 ms
DNS resolutionNOERROR
Redirect chain
https://www.knowbe4.com/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 4
18.244.214.9418.244.214.5318.244.214.4318.244.214.73
MX 7
10aspmx5.googlemail.com1aspmx.l.google.com5alt2.aspmx.l.google.com5alt1.aspmx.l.google.com10aspmx4.googlemail.com10aspmx2.googlemail.com10aspmx3.googlemail.com
TXT 32
zapier-domain-verification-challenge=f1426c5b-21d2-4bc7-82dd-e74d108c77c8mongodb-site-verification=CLB4dkKYnXU5G5xERSrl2N0XPr9EUX3ag4l3bgqre4hkae8dfmm4v1q4jeadobe-sign-verification=600d5d8d4ae04f20e7d625c21e96ec48bhd25m1n5fj8h8c4bchk43oeb4zapier-domain-verification-challenge=67e81d94-81d3-44c1-bb5b-f278a3ed32cagoogle-site-verification=WrBl38sScepa-oAzO5AlDr6qeJqHniarCDURkDMLpQsdocker-verification=e9e873bd-4dc8-437e-9718-93ee84b39448google-site-verification=EJTeC07BGnS6X2PWc5FoEbPRt8T91Y4-lhZW7RLxS-cadobe-idp-site-verification=370d08217eb4fd02ec25c8b9d1e4062ff87e4273d282e12f4995ea4e269c6160
NS 4
ns-1882.awsdns-43.co.ukns-853.awsdns-42.netns-38.awsdns-04.comns-1036.awsdns-01.org
SOA 1
ns-1036.awsdns-01.org awsdns-hostmaster.amazon.com
TLS Certificates (0)
None.
Subdomains (13)
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
e3fab65c-520f-456b-9143-5a0f7fffab4b- Output Hash
061b0f69582447fa941857c89288c5a12705a99018dbb7a01f555d1a7425141e- Signature
ed25519:b40c4a4211a7f70a1eb1969b1219952d3d67f67c67c2a63c4b0b0f4947af744774a5ff4690a40948f35b8011308ea677f20770e7e86db84f3349c9bd89fca806- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast