colab.dev
Observed 2026-07-12T09:37:58.382Z (18h ago). Every field below was attested with an Ed25519 signature at scan time.
Not responding
Runs onCloudflare
tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat colab.dev actually stands on - every host below is a signed observation
colab.dev
NS
ns3.googledomains.comns1.googledomains.comns2.googledomains.comns4.googledomains.com
googledomains.comanswers its DNS
HTTPS probe
server_error
Server error (5xx) 530 Server Error
HTTP status530
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time10 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
TXT 1
v=spf1 -all
NS 4
ns3.googledomains.comns1.googledomains.comns2.googledomains.comns4.googledomains.com
SOA 1
ns1.googledomains.com cloud-dns-hostmaster.google.com
CAA 1
issue pki.goog
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 receiptEd25519 Receipt
- Receipt ID
1a3e66e1-96f1-4111-9633-d9d941d37ebc- Output Hash
3e6c034f9032c5bab3f23e7f5f93b9bf8d19fb58e6404842b6cea1999008b06e- Signature
ed25519:acbcb3f63520f5b1ea3aeca8c0f85758a529f2fa975e2d0db6147b35b6112911b2269c292b5bc676b186dbaf712da8ce4822a433ac54c95730da7ff454cf2e00- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast