japanswitch.com
Observed Aug 16, 2026, 12:50 UTC (7h 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 toXServer
Registered withXServer Inc.
Also usesGoogle Search Console
Google Search Console1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat japanswitch.com actually stands on - every host below is a signed observation
japanswitch.com
A / AAAA
183.90.231.44
unattributedserves the site
NS
ns2.xbiz.ne.jpns3.xbiz.ne.jpns1.xbiz.ne.jp
ne.jpanswers its DNS
MX
aspmx3.googlemail.comalt2.aspmx.l.google.comaspmx2.googlemail.comaspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
www.japanswitch.com
Let's Encryptissued its certificate
DNS Records
A 1
183.90.231.44
MX 5
10aspmx3.googlemail.com5alt2.aspmx.l.google.com10aspmx2.googlemail.com1aspmx.l.google.com5alt1.aspmx.l.google.com
TXT 3
google-site-verification=7buiT3VTwuxzZOharW1PvjQ-iThCB_xr1sic-aXEpfkv=spf1 +a:sv243.xbiz.ne.jp +a:japanswitch.com +mx include:spf.sender.xserver.jp include:_spf.ptsc.jp include:spf.form.run ~allgoogle-site-verification=OEZCCq0vaFEzbGLrzigFqnJLGNhnO6yb_Uz9yMpx-_E
NS 3
ns2.xbiz.ne.jpns3.xbiz.ne.jpns1.xbiz.ne.jp
SOA 1
ns1.xbiz.ne.jp root.xbiz.ne.jp
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.japanswitch.com |
C=US, O=Let's Encrypt, CN=YR2 | Tue, 20 Oct 2026 05:25:18 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_523f37a53c1bb1ae- Output Hash
2cfd3cd0276eae4ca58a75dfc5efafd52537f54bfd9e01722a48be761bfc583b- Signature
ed25519:1adc2f102a76b6e3bc5d50f628a0ba42bc8df811d7d67a3306975f57b77dff8742857417a625ec11b8867cbb04b8f04793118c74287d8777814eb7bbb5a98809- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast