jst.go.jp
Observed Jul 23, 2026, 03:34 UTC (21h 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
Runs onCloudflare
Email byMicrosoft 365
1 subdomain · tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat jst.go.jp actually stands on - every host below is a signed observation
jst.go.jp
NS
ns-248.awsdns-31.comns-1500.awsdns-59.orgns-931.awsdns-52.netns-1616.awsdns-10.co.uk
awsdns-31.com + awsdns-59.org + moreanswers its DNS
MX
jst-go-jp.mail.protection.outlook.com
Microsoft 365receives its email
HTTPS probe
server_error
Server error (5xx) 530 Server Error
HTTP status530
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time1973 ms
DNS resolutionNOERROR
Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
MX 1
1jst-go-jp.mail.protection.outlook.com
TXT 4
v=spf1 include:spf.protection.outlook.com include:_spf.activegate-ss.jp include:asp.cuenote.jp include:mddrei.maildealer.jp ip4:160.74.0.0/16 ip4:116.118.239.209 ip4:122.17.176.45 ip4:4.216.127.251 ip4:172.207.190.20 include:spf.wise365cloud.com -allv=DMARC1; p=quarantine; rua=mailto:dmarc-report-rua@jst.go.jp,mailto:dmarc_agg@vali.emailv=DKIM1; (detected)v=DNSSEC1; (detected)
NS 4
ns-248.awsdns-31.comns-1500.awsdns-59.orgns-931.awsdns-52.netns-1616.awsdns-10.co.uk
SOA 1
ns-931.awsdns-52.net awsdns-hostmaster.amazon.com
TLS Certificates (0)
None.
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_67a7379431803a87- Output Hash
37693e491a6c56088b780db77a72005953bf34eff058cd5296a3f57c666aa0bd- Signature
ed25519:ccef21bf28ad08a6226a0c07791862c61147ccefe46602cb7a2fb0010f3ff366b0b5af836d98f5f01c6718cfbeb05650f6e30ad7acb6407279a0f03578c0e602- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast