robertjacobgordon.nl
Observed Aug 9, 2026, 19:26 UTC (14h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Up right now
Secured byDigiCert
domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat robertjacobgordon.nl actually stands on - every host below is a signed observation
robertjacobgordon.nl
A / AAAA
52.174.150.25
unattributedserves the site
NS
ns1.zurich.surf.netns1.surfnet.nlns2.surfnet.nlns3.surfnet.nl
surf.net + surfnet.nlanswers its DNS
TLS
robertjacobgordon.nl
DigiCert Incissued its certificate
DNS Records
A 1
52.174.150.25
TXT 2
v=spf1 -allrijks-gordon-web.azurewebsites.net.
NS 4
ns1.zurich.surf.netns1.surfnet.nlns2.surfnet.nlns3.surfnet.nl
SOA 1
ns1.surfnet.nl dns-beheer.surf.nl
CAA 3
issue "digicert.com"issue "harica.gr"issue "sectigo.com"
DMARC_RECORDS 1
v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; ruf=mailto:abuse@rijksmuseum.nl; sp=none; fo=1;
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
robertjacobgordon.nl |
C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=GeoTrust TLS RSA CA G1 | Mon, 30 Nov 2026 23:59:59 +0000 |
GeoTrust TLS RSA CA G1 |
C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 | Tue, 02 Nov 2027 12:23:37 +0000 |
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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_4867864204f9b745- Output Hash
73d519e8a7ea4b955cd2a5c6fbb0039fcca1a79ba581f27cd6ea42b79f63c3bb- Signature
ed25519:c2e61185cf74b75ba1266bc057c6aa1adac0d2ea9936f67f634cee2705156222e09c3bee2362309af24512e7443b5d4216e0d82bbacc15df468d541542199f00- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast