Registered 20 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 814 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 46.51.247.29 |
|---|---|
| MX | 10 bgmgate1.biglobe.ne.jp 10 bgmgate2.biglobe.ne.jp |
| NS | dns.nnetworks.jp dns.nnetworks.co.jp |
| TXT | google-site-verification=eGpOYTBGDjDjHSaiUuSsSsUYh2J8l7-jUT_HF20pTaI _globalsign-domain-verification=Mr2VF9Lr9Ht9s4NDlT-NKVTKC0JCejiQoD5Bo_p_2y v=spf1 +ip4:46.51.247.29 +ip4:175.135.252.129 +ip4:175.135.252.193 +ip4:202.212.38.242 +ip4:52.199.97.73 +ip4:210.140.6.128/25 include:fc6538.cuenote.jp include:srs8119.cuenote.jp include:_spf.otoiawase.jp ~all |
| registered | 2006-05-19 |
|---|---|
| expires | 2027-05-31 |
| last changed | 2026-09-07 |
| owner | SURUGA-YA Inc. |
| nameservers | dns.nnetworks.co.jp dns.nnetworks.jp |
| status | Active |
| valid | yes |
|---|---|
| issuer | GlobalSign nv-sa |
| covers | *.suruga-ya.jp, suruga-ya.jp |
| protocol | TLSv1.2 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 +ip4:46.51.247.29 +ip4:175.135.252.129 +ip4:175.135.252.193 +ip4:202.212.38.242 +ip4:52.199.97.73 +ip4:210.140.6.128/25 include:fc6538.cuenote.jp include:srs8119.cuenote.jp include:_spf.otoiawase.jp ~all |
|---|---|
| DMARC | pass policy quarantine |
| DKIM | none of 1 common selectors |
Whether mail claiming to be from this domain can be checked as genuine.
Green: clean. Red: listed. Grey: the list did not answer.
Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on suruga-ya.jp.
Reference: /llms.txt.
Watch suruga-ya.jp. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.
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