revcomm.co.jp
Observed Jul 26, 2026, 06:17 UTC (6d 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
Secured byLet's Encrypt
Also usesHubSpotGoogle Search ConsoleFacebook/MetaNotion
1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat revcomm.co.jp actually stands on - every host below is a signed observation
revcomm.co.jp
A / AAAA
162.43.121.146
unattributedserves the site
NS
ns1.value-domain.comns2.value-domain.com
value-domain.comanswers its DNS
MX
alt4.aspmx.l.google.comalt3.aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
www.revcomm.co.jp
Let's Encryptissued its certificate
DNS Records
A 1
162.43.121.146
MX 5
10alt4.aspmx.l.google.com10alt3.aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com1aspmx.l.google.com
TXT 8
anthropic-domain-verification-rm2h8z=Sg4LHIlKAjt9lOrQqeijq8nuHfacebook-domain-verification=wzrhb8driq0tudd574vdrkbdfzmb8knotion-domain-verification=oXu3BytbEKOdotpk5c0JqNqqiVDj9I0W7p8tDQodoTvgoogle-site-verification=3gqVUSJ0Q0sqo9RiHmKetG6fFmwjerXBXvQjk8x4zj4v=spf1 include:_spf.google.com include:mail.zendesk.com include:_spf.salesforce.com include:7184105.spf01.hubspotemail.net include:24198008.spf03.hubspotemail.net include:_spf.prtimes.jp ~allMS=ms42110139google-site-verification=T0hzohzNnVsBsxF_GJiwFb5Tcas5H763gglQPJc99IIv=DMARC1;p=none;rua=mailto:dmarc_report@revcomm.co.jp;ruf=mailto:dmarc_report@revcomm.co.jp
NS 2
ns1.value-domain.comns2.value-domain.com
SOA 1
ns1.value-domain.com hostmaster.revcomm.co.jp
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.revcomm.co.jp |
C=US, O=Let's Encrypt, CN=YR2 | Fri, 02 Oct 2026 07:03:57 +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 (1)
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_7c7c2c6d99757a74- Output Hash
2610f64420f2963d449755042fb6137e1ccba8ad2ceedd32be0ee3afaffc2fc9- Signature
ed25519:472ebd53be2650655fe86e980addea41630202a0530be7fcf80774be07148b344232b1916b1bc2e28459ee97f1cadc35d9c6aa01fa17b1fe03252500e13b3108- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast