gemwin.jp is registered with whois.jprs.jp. We couldn't read an SSL certificate for it when we last analysed it.
What security vendors and the WOT community say about this domain.
0 of 5 protections set up
No SPF record: any server can send mail that claims to come from this domain.
—No key at the 12 common selectors we checked. A custom selector can’t be found from DNS alone.
—No DMARC policy: receivers aren’t told what to do with mail that fails SPF and DKIM.
—Forces encrypted delivery between mail servers.
—Shows the brand logo in supporting inboxes. Optional; needs DMARC enforcement.
—Read from the domain's public DNS records.
What loads and tracks visitors when the homepage opens.
Running a full browser scan of the homepage… This takes about a minute.
We couldn't read an SSL certificate on port 443 when we last analysed gemwin.jp. Refresh the analysis to check again.
Internet standards that make a site faster and safer.
Is gemwin.jp’s name taken on other extensions?
| Host | Name server | TTL |
|---|---|---|
| gemwin.jp | ns3.my-ndns.com | 7200 |
| gemwin.jp | ns4.my-ndns.com | 7200 |
| Host | Start of authority | TTL |
|---|---|---|
| gemwin.jp | gemwin.jp root.gemwin.jp 2026072500 7200 1800 1209600 7200 | 7200 |
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Reviews are from CubDomain users and are separate from the security verdicts above.
Common questions, answered from this report's data.
gemwin.jp has no community safety rating yet. We couldn't read an SSL certificate on it when we last analysed it. See Security →
gemwin.jp is registered through whois.jprs.jp. See WHOIS →
Raw registry data for gemwin.jp. May be redacted by privacy services.
[ JPRS database provides information on network administration. Its use is ] [ restricted to network administration purposes. For further information, ] [ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ] [ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ] Domain Information: [ドメイン情報] [Domain Name] GEMWIN.JP [登録者名] OKFUN Group LLC [Registrant] OKFUN Group LLC [Name Server] ns3.my-ndns.com [Name Server] ns4.my-ndns.com [Signing Key] [登録年月日] 2026/06/22 [有効期限] 2027/06/30 [状態] Active [ロック状態] DomainTransferLocked [ロック状態] AgentChangeLocked [最終更新] 2026/07/25 01:59:45 (JST) Contact Information: [公開連絡窓口] [名前] NETIM [Name] NETIM [Email] [email protected] [Web Page] [郵便番号] 160-0023 [住所] 東京都新宿区西新宿3-9-3 [Postal Address] 3-9-3 Nishishinjuku, Shinjuku-ku, Tokyo [電話番号] 03-6300-7969 [FAX番号]
Four timed TCP connections to port 443 from CubDomain's servers.
CubDomain is not affiliated with gemwin.jp. Data is collected independently from public sources and some figures are estimates, provided for information only.
Spam and malware blocklists for the site's IP and mail servers.
When the site first appeared, and what has changed since.
No changes seen since we started recording on 27 Oct 2026.
Found in public certificate transparency logs.
Searching the certificate transparency logs… This can take up to a minute.