koon.jp is registered with whois.jprs.jp and is hosted on AS2914 in Japan. We couldn't read an SSL certificate for it when we last analysed it.
On-page basics for the homepage.
Networks cache previews — changes can take time to show.
What security vendors and the WOT community say about this domain.
2 of 5 protections set up
Lists the servers allowed to send email for this domain.
v=spf1 -allNo key at the 12 common selectors we checked. A custom selector can’t be found from DNS alone.
—Policy is “reject”: spoofed mail is blocked.
v=DMARC1; p=rejectForces encrypted delivery between mail servers.
—Shows the brand logo in supporting inboxes. Optional; needs DMARC enforcement.
—Read from the domain's public DNS records.
0 of 6 recommended headers
Forces HTTPS on future visits.
Limits where scripts can load from — the main defence against XSS.
Stops the site being framed for clickjacking.
Prevents browsers guessing file types.
Which AI crawlers this site allows, and whether it publishes an llms.txt.
No robots.txt, so every crawler may crawl the whole site. Not every crawler follows it. llms.txt is an optional guide some sites publish for AI assistants — it is not a ranking factor.
Pages and files that show who runs the site and how it handles data.
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 koon.jp. Refresh the analysis to check again.
Internet standards that make a site faster and safer.
The path from a typed address to the final page.
462 similar domains registered in the last 90 days — possible typosquatting or phishing.
| Domain | Why it’s similar | Registered | Status | Report |
|---|---|---|---|---|
| koori.store | Look-alike characters | 28 Oct 2026 | Active website | Report → |
| koori.in.net | Look-alike characters | 5 Oct 2026 | RedirectsRedirects to psus.radio.am | Report → |
| koori.world | Look-alike characters | 4 Oct 2026 | Active website | Report → |
| kono.center | Typo | 23 Oct 2026 | No website | Report → |
| koon.ltd | Other extension | 18 Oct 2026 | Active website | Report → |
From CubDomain's daily newly registered domains. Similar doesn't mean malicious.
Is koon.jp’s name taken on other extensions?
2 technologies detected across 2 categories.
Detected from headers, page source and DNS · Automatic and may be incomplete · Suggest a correction
Every IP address koon.jp resolves to, and where it's hosted.
| Host | IPv4 address | TTL |
|---|---|---|
| koon.jp | 117.104.133.171 | 3600 |
| Host | IPv6 address | TTL |
|---|---|---|
| koon.jp | 2001:218:3001:7::10 | 3600 |
| Host | Mail server | TTL |
|---|---|---|
| koon.jp | 0 | 3600 |
| Host | Name server | TTL |
|---|---|---|
| koon.jp | redirect1.jprs.jp | 3600 |
| koon.jp | redirect2.jprs.jp | 3600 |
| Host | Text | TTL |
|---|---|---|
| koon.jp | "v=spf1 -all" | 3600 |
| Host | Start of authority | TTL |
|---|---|---|
| koon.jp | redirect1.jprs.jp root.jprs.jp 2026110103 1800 900 3600000 3600 | 3600 |
No reviews yet. Used koon.jp? Be the first to say how it went.
Reviews are from CubDomain users and are separate from the security verdicts above.
Common questions, answered from this report's data.
koon.jp has no community safety rating yet. We couldn't read an SSL certificate on it when we last analysed it. See Security →
koon.jp is registered through whois.jprs.jp. See WHOIS →
koon.jp is served from 2 IP addresses, mainly on AS2914 in Japan. See Hosting →
We detected 2 technologies, including Google Analytics and jQuery. See Built with →
Raw registry data for koon.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] KOON.JP
[登録者名] （登録者からの申請により非表示）
詳細は→https://jprs.jp/about/dom-rule/whois-concealment/
[Registrant] (Not displayed by registrant's request)
For details -> https://jprs.jp/about/dom-rule/whois-concealment/ (only in Japanese)
[Name Server] redirect1.jprs.jp
[Name Server] redirect2.jprs.jp
[Signing Key]
[登録年月日] 2009/06/03
[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] 2026/09/17 16:32:32 (JST)
Contact Information: [公開連絡窓口]
[名前] 小山仁志
[Name] Hitoshi Koyama
[Email] [email protected]
[Web Page]
[郵便番号] 547-0002
[住所] 大阪府大阪市平野区加美東
5-6-33-119
[Postal Address]
[電話番号] 08014304242
[FAX番号]The first response from http://www.koon.jp, before any redirect: caching, server and policy headers.
Four timed TCP connections to port 443 from CubDomain's servers.
CubDomain is not affiliated with koon.jp. Data is collected independently from public sources and some figures are estimates, provided for information only.
Controls how much of the URL is shared with other sites.
Restricts camera, microphone and other browser features.
From the homepage's response, https://www.kouon.com/
Found in public certificate transparency logs.
Searching the certificate transparency logs… This can take up to a minute.
When the site first appeared, and what has changed since.
No changes seen since we started recording on 1 Nov 2026.
Spam and malware blocklists for the site's IP and mail servers.