ruka.fi
Observed Jul 25, 2026, 04:10 UTC (8d 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 byMicrosoft 365
Secured byLet's Encrypt
Also usesHubSpotGoogle Search ConsoleFacebook/Meta
12 subdomains · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ruka.fi actually stands on - every host below is a signed observation
ruka.fi
A / AAAA
23.100.57.207
unattributedserves the site
NS
dns2.louhi.netdns1.louhi.netdns3.louhi.fi
louhi.net + louhi.fianswers its DNS
MX
ruka-fi.mail.protection.outlook.com
Microsoft 365receives its email
TLS
ruka.fi
Let's Encryptissued its certificate
DNS Records
A 1
23.100.57.207
MX 1
0ruka-fi.mail.protection.outlook.com
TXT 8
v=spf1 include:_spf.emaileri.fi ip4:195.156.147.0/25 ip4:88.194.44.0/25 ip4:213.255.168.0/24 include:cmail1.com include:_spf.lyyti.fi include:spf.lianamailer.com ip4:82.118.214.66 include:spf.protection.outlook.com include:emsd1.com include:6778374.spf03.hubspotemail.net include:_spf.citybreak.com -allu3tm1arb2gimblp0slcgvgbvndfacebook-domain-verification=wfd3ppnsdh4uwbvgkw3zm9wdw609ksXI0AU3EQ0S0Y4TUKS05Z5WOQNXXT20ZE656SHZ2BMS=ms91927062v20paar2rej6bmosrmjltjf79ngoogle-site-verification=O-f8tv0yFgytIGszsp-MnZWxSyIqT0_qYqAGpjChYXUv=DMARC1; p=none; pct=100;
NS 3
dns2.louhi.netdns1.louhi.netdns3.louhi.fi
SOA 1
dns1.louhi.net hostmaster.louhi.net
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
ruka.fi |
C=US, O=Let's Encrypt, CN=YR2 | Sat, 17 Oct 2026 02:45:39 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (12)
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
rcpt_a6fa5da63e15387b- Output Hash
e2b71c5041290d508071617ced513b0e415a1cb4d6e2736bcc5319f17d6446c2- Signature
ed25519:9341fe7f5e454a1eb7b23b369a29a408440730b4fad12fecec3b18e3a4aa93af4965e4bab8c9e6c9118456153dfb0decc843859fc4129cb49b4ab02a9f516b03- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast