big.or.jp

Observed 2026-07-13T12:14:47.945Z (6h ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding

Runs onCloudflare

9 subdomains · tranco_40k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat big.or.jp actually stands on - every host below is a signed observation

big.or.jp

ns0.big.or.jpns1.big.or.jpns2.big.or.jp

or.jpanswers its DNS

mx.sweep-on.netmx04.sweep-on.netmx03.sweep-on.netmx01.sweep-on.net+1 more

sweep-on.netreceives its email

HTTPS probe

server_error Server error (5xx) 530 Server Error

HTTP status530

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time1912 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 5

10mx.sweep-on.net
20mx04.sweep-on.net
20mx03.sweep-on.net
20mx01.sweep-on.net
20mx02.sweep-on.net

TXT 2

v=spf1 mx +ip4:210.197.72.0/21 +ip6:2001:278:1033::/48 ~all
v=DMARC1; p=none; pct=100; adkim=s; aspf=s;

NS 3

ns0.big.or.jp
ns1.big.or.jp
ns2.big.or.jp

SOA 1

ns0.big.or.jp question.big.or.jp

TLS Certificates (0)

None.

Subdomains (9)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for big.or.jp. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/big.or.jp">
  <img src="https://domaindrift.io/badge/big.or.jp.svg"
       width="300" height="64" alt="DomainDrift signed observations for big.or.jp">
</a>

Ed25519 Receipt

Receipt ID: ac4d296c-f396-46ec-ac35-b5aadaf15e68
Output Hash: 180b9d0824fe25e77e0f49b38bcc2067428ff858e368e34c8cdf2951ac03f3f8
Signature: ed25519:3b1005f02743c0534ed085077b7c29244f1d8e5006cf7e47ff49e820d6a1ce5755ed5967da18cbd43efc75718c4aaa5ea6c2f3a3c0a7b1eac1520c840a2a1d0d
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/big.or.jp