e-frontier.co.jp
Observed Jul 25, 2026, 07:47 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.
Not responding
Email byGoogle Workspace
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat e-frontier.co.jp actually stands on - every host below is a signed observation
e-frontier.co.jp
A / AAAA
133.242.3.139
unattributedserves the site
NS
ns-1386.awsdns-45.orgns-140.awsdns-17.comns-1538.awsdns-00.co.ukns-940.awsdns-53.net
awsdns-45.org + awsdns-17.com + moreanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+4 more
Google Workspacereceives its email
DNS Records
A 1
133.242.3.139
MX 8
10aspmx.l.google.com20alt1.aspmx.l.google.com20alt2.aspmx.l.google.com30aspmx2.googlemail.com30aspmx3.googlemail.com30aspmx4.googlemail.com30aspmx5.googlemail.com40efrontier-co-jp0c.mail.protection.outlook.com
TXT 2
google-site-verification=OxXjY3Ow_BjN_mVUd5c4EDoAxsFuGDE_YyIkIQbUH6cv=spf1 mx ip4:133.242.66.0/27 ip4:58.80.17.63 ip4:133.242.3.139 a:n4.e-frontier.co.jp a:m0.e-frontier.co.jp include:mdjack.maildealer.jp include:mail.zendesk.com include:spf.protection.outlook.com include:_spf.google.com ~all
NS 4
ns-1386.awsdns-45.orgns-140.awsdns-17.comns-1538.awsdns-00.co.ukns-940.awsdns-53.net
SOA 1
ns-1386.awsdns-45.org awsdns-hostmaster.amazon.com
TLS Certificates (0)
None.
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; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_28af40569c5b6d6b- Output Hash
b18f1ea5821e1248feef780eb5b5399226293e533cd3a228bb18b45e9cd6f443- Signature
ed25519:fb625819f0f616140a847557dc1c32f04baeecc0d4f85adcfc5023257216ba6fcefcc9f4b71e5ac053fd5ef3aefe4b8928f023421d745cd7796bd06252cd8201- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast