retro.jp
Observed Jul 25, 2026, 14:28 UTC (7d 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 byGlobalSign
Also usesGoogle Search Console
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat retro.jp actually stands on - every host below is a signed observation
retro.jp
A / AAAA
219.99.174.102219.99.174.101
unattributedserves the site
NS
ns-1123.awsdns-12.orgns-1988.awsdns-56.co.ukns-245.awsdns-30.comns-785.awsdns-34.net
awsdns-12.org + awsdns-56.co.uk + moreanswers its DNS
MX
retro-jp.mail.protection.outlook.comzeelco.sakura.ne.jpmx.sendgrid.net
Microsoft 365receives its email
TLS
www.retro.jp
GlobalSign nv-saissued its certificate
DNS Records
A 2
219.99.174.102219.99.174.101
MX 3
10retro-jp.mail.protection.outlook.com20zeelco.sakura.ne.jp30mx.sendgrid.net
TXT 3
google-site-verification=x-_4_cESNzfnUhgLTG01gBbp_c5ZwiMENclWHYGkOa8v=spf1 include:spf.protection.outlook.com include:_spf.maildeliver.jp include:spfgw.fsi.ne.jp include:mail.zendesk.com include:spf.bserver.jp include:sendgrid.net a:www619b.sakura.ne.jp mx ~allv=DMARC1; p=none; rua=mailto:registration@retro.jp; adkim=r; aspf=r; pct=100
NS 4
ns-1123.awsdns-12.orgns-1988.awsdns-56.co.ukns-245.awsdns-30.comns-785.awsdns-34.net
SOA 1
ns-1988.awsdns-56.co.uk awsdns-hostmaster.amazon.com
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
www.retro.jp |
C=BE, O=GlobalSign nv-sa, CN=GlobalSign GCC R6 AlphaSSL CA 2025 | Mon, 10 Aug 2026 04:54:50 +0000 |
GlobalSign GCC R6 AlphaSSL CA 2025 |
2.5.4.11=GlobalSign Root CA - R6, O=GlobalSign, CN=GlobalSign | Fri, 21 May 2027 00:00:00 +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_e2b1363bd92054db- Output Hash
301746e5210bdff85d97402101d413a9b22ad7abad5c615aa9108e608c6de52d- Signature
ed25519:41e2a11199b6b1f72b5a1c9b69adadfe1eb100606442a76469b0cd296357ae1af3de1d393e30ac699f3e2279fa4c9f4808e9bf04494aea4d9e11406e19e8720d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast