kalkhoff-bikes.com
Observed Aug 16, 2026, 11:25 UTC (8h 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
Email byGoogle Workspace
Google WorkspaceSecured byLet's Encrypt
Let's EncryptRegistered withKey-Systems GmbH
Also usesMicrosoft 365GlobalSignAppleGoogle Search ConsoleHave I Been PwnedMiroSmartsheet
Microsoft 365
GlobalSign
Apple
Google Search Console
Have I Been Pwned
Miro
Smartsheettranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat kalkhoff-bikes.com actually stands on - every host below is a signed observation
kalkhoff-bikes.com
A / AAAA
87.238.163.22
unattributedserves the site
NS
katja.ns.cloudflare.comkeaton.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.commail.derby-cycle.de+2 more
Google Workspacereceives its email
TLS
kalkhoff-bikes.com
Let's Encryptissued its certificate
DNS Records
A 1
87.238.163.22
MX 6
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com100mail.derby-cycle.de5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 9
MS=ms58182447_globalsign-domain-verification=I_kNQcUM8EY9Bdoua_JHghq-sgxBphmqdVa09jpv5U_globalsign-domain-verification=mybKJPj92b9Qv-xtWW1I8pa3h5EOpVuDQ62tzeVleoapple-domain-verification=gCu98GQ3pUuQQIbrgoogle-site-verification=tgzGZmbbOYqH5nXPBvARBCe1qaloKULMip3n0VNSC2ohave-i-been-pwned-verification=dweb_4l89x1chowvck2nyyflz1lmsmiro-verification=89ce9a85054c5d7236c7f2eda88603f7ba7912f6smartsheet-site-validation=WCvRcrKmCtqZsIdI_KHhXOefCt1Zb3c0v=spf1 include:_spf.google.com include:spf.nl2go.com include:servers.mcsv.net include:spf.mailjet.com include:26545664.spf05.hubspotemail.net ip4:95.217.86.229 -all
NS 2
katja.ns.cloudflare.comkeaton.ns.cloudflare.com
SOA 1
katja.ns.cloudflare.com dns.cloudflare.com
DMARC_RECORDS 1
v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:053718d2@inbox.eu.redsift.cloud; ruf=mailto:053718d2@inbox.eu.redsift.cloud;
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
kalkhoff-bikes.com |
C=US, O=Let's Encrypt, CN=YE2 | Mon, 02 Nov 2026 03:05:53 +0000 |
YE2 |
C=US, O=ISRG, CN=Root YE | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YE |
C=US, O=Internet Security Research Group, CN=ISRG Root X2 | Thu, 02 Sep 2032 23:59:59 +0000 |
ISRG Root X2 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +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_30cb65d353e40f66- Output Hash
6cef0c1c5c248099244b0c06bca9d7cc0e76048dc23359530a31ee1e604de0a0- Signature
ed25519:f3109376e6ca1ef085c2d68d15dda64393b454feb39b28a42afa1aa2ac4460d9bd080791043a867a4a200cb13f175953f19b1f2dabd8aeb38ba4a662b1079a0b- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast