No threats detected
All checks passed. This site appears legitimate — but always stay alert for phishing even on trusted domains.
Is ocn.ne.jp legit or a scam?
This looks safe to use.
Official OCN ISP homepage with clean scans, 1996 registration, and legitimate NTT Docomo branding.
Analysis Summary
Website Preview
Automated page render — captured in a safe sandbox. What an ordinary visitor would see when loading the site.
Visual analysis
We capture a fresh screenshot of the live page and ask a vision model to look for scam visual patterns — fake trust badges, countdown timers, overlay pop-ups, and visual clones of legitimate brands.
Visual red flags detected in the screenshot
The page appears to be a legitimate, fully-rendered portal for the Japanese internet service provider OCN, showing no visual indicators of a scam or phishing attempt.
What our vision model saw
6 signalsProfessional layout consistent with a major Japanese ISP (OCN)
High-quality graphics and promotional banners with consistent branding
Functional navigation menu with links to support, mail, and account management
Presence of legitimate corporate logos including NTT Docomo and OCN
Standard login portal for d-account and OCN ID users
Informational banners regarding security awareness and fraud prevention
Intelligence
The page is the primary domain for Open Computer Network, Japan's largest ISP with millions of subscribers. Our antivirus network returned zero detections across 92 engines and the hosting IP shows zero abuse reports. The domain was registered in November 1996 and is operated by NTT DOCOMO BUSINESS, Inc., a major telecommunications company. Visual analysis confirms professional branding, functional navigation, and corporate logos consistent with a legitimate provider portal. The only notable concern is that scammers frequently abuse @ocn.ne.jp email accounts to send phishing messages, though this does not affect the website itself.
Web Research Findings
Our live research agent queries scam-report databases, consumer-review sites, news coverage, and general web search for ocn.ne.jp, then cross-checks business-registration records and look-alike domain patterns. Everything below is pulled from what it actually found.
- ocn.ne.jp is the official domain for Open Computer Network (OCN), the largest Internet Service Provider in Japan with over 7 million subscribers.
- The domain is owned and operated by NTT DOCOMO BUSINESS, Inc. (a subsidiary of NTT), one of the world's largest telecommunications companies.
- Whois records show the domain was registered on November 19, 1996, confirming long-term legitimate operation.
- While the domain itself is legitimate, it is frequently cited in scam reports because attackers abuse its free or provider-issued email accounts (@xxx.ocn.ne.jp) to send phishing and spam emails.
- Security analysis tools like IPQualityScore and ScamAdviser classify the domain as low risk and legitimate.
- Online Threat Alertsopen
"We have been receiving thousands of email scams from '@ocn.ne.jp' email addresses. Scammers are abusing the 'ocn.ne.jp' domain name or email services, by creating fake emails accounts."
- JanBask Trainingopen
"ocn.ne.jp is a subdomain of ocn.ne.jp -- a large Japanese Internet provider. In particular, if someone has attacked you or spammed you from such a domain, it has nothing to do with us."
- ScamAdviseropen
"In summary, we think ocn.ne.jp is legit and safe for consumers to access. We identified an SSL certificate meaning that the data shared between your browser and the website is encrypted."
- IPQualityScoreopen
"The mail domain ocn.ne.jp is valid... Recent quality reports have classified ocn.ne.jp with a low risk profile as most accounts originating from this domain are valid."
Operated by NTT DOCOMO BUSINESS, Inc. (formerly NTT Communications Corp).
Our research found two scam reports noting that attackers abuse @ocn.ne.jp email accounts to send phishing messages. Two positive assessments from independent review aggregators classify the domain as low risk and legitimate. Business registration records confirm the domain is operated by NTT DOCOMO BUSINESS, Inc. in Japan with active status. Fifteen complaints were recorded, primarily related to email abuse rather than the website itself.
Threat Detection
Antivirus Engines
Security Scans
Checked against the major public blocklists used by browsers and security tools — no hits.
Reputation Sources
How this domain rates across independent threat-intelligence and blocklist providers.
Technical Details
domain · encryption · redirects · server reputation · referencedThe plumbing behind the site — who registered it, how it’s encrypted, where it’s hosted, and where it links out. A valid certificate or a calm server doesn’t mean the business is honest — scam sites pass these checks too. Use this to corroborate the verdict, not to overturn it.
Contact Verification
We fetched the page and looked for real-world contact details. Legitimate businesses almost always publish an email on their own domain, a phone number, and a postal address. Scam shops usually don't.
- No contact email found anywhere on the page.
- No phone number listed on the page.
- No postal address visible on the page.
- Links to 3 social profiles.
Domain & Encryption
Redirect Chain
- 1301http://ocn.ne.jp/
- 2200https://www.ocn.ne.jp/
Server Reputation
Referenced Domains
Outbound domains this page links to or loads resources from. Each links to its own security scan.
What to do
Still, stay alert
No major threat indicators — but a clean scan does not guarantee every page is safe, and phishing emails routinely spoof real domains.
- Double-check the exact URL in your address bar
Confirm you are actually on ocn.ne.jp and not a lookalike like o-cn.ne.jp.com or an IDN homoglyph.
- Use a password manager
Password managers only auto-fill on the exact domain they were saved for — they refuse to fill lookalike domains, which is the single best phishing defence.
- OpenDiscuss this site on the forum
If you have first-hand experience with this site — good or bad — share it with the MalwareTips community.
Final Verdict
This is the official homepage of OCN, Japan's largest internet service provider operated by NTT DOCOMO BUSINESS. The domain has been registered since 1996 and shows clean technical scans with no malicious flags. Users should still be cautious of scam emails sent from @ocn.ne.jp addresses, as attackers abuse legitimate provider accounts.
Safety FAQ
Common questions, answered directly from the scan data above — so the answers always reflect the latest verdict on this page.
- Our automated security review found no threat indicators on ocn.ne.jp, so it appears legitimate. All 92 antivirus engines we queried report it clean, Even so, always double-check the exact address in your browser, because phishing emails routinely spoof real, trusted domains like this one.
- ocn.ne.jp passed our automated checks with a trust score of 87/100. No antivirus engines or major blacklists flagged it at the time of the last scan, and its signals line up with an established, legitimate site. Treat any unexpected login prompt or payment request on it with the same caution you would anywhere.
- Yes — and this is worth understanding. Even trustworthy domains get spoofed in phishing emails (a fake message that only looks like it's from ocn.ne.jp), and legitimate sites are occasionally compromised on specific pages. A clean verdict means the site itself checks out today; it does not mean every email or link claiming to be from ocn.ne.jp is genuine. Always reach the site by typing the address yourself rather than clicking links in unexpected messages.
- No — all 92 antivirus and blocklist engines in our malware network currently report ocn.ne.jp as clean. That's a good sign, though antivirus coverage is only one of the many signals we weigh, and brand-new scam sites can appear clean before vendors catch up.
- No — ocn.ne.jp is not currently on the major browser blocklist feeds that Chrome, Safari, Firefox, and Edge rely on. Note that blocklists can lag behind brand-new scam domains, so "not listed" is reassuring but not a guarantee on its own.
- Yes — ocn.ne.jp presents a valid TLSv1.3 certificate issued by Cybertrust Japan Co., Ltd. · Cybertrust Japan SureServer EV CA G3, valid for another 201 days. Important caveat: SSL only encrypts the connection between you and the site — it does not verify who runs it. Almost all scam sites now have valid SSL too, so a padlock alone never means "safe".
- ocn.ne.jp resolves to an IP operated by Amazon.com, Inc. in US (Content Delivery Network). Hosting location alone doesn't make a site good or bad — but hosting that doesn't match a brand's claimed country, or that sits on networks known for abuse, is one of the many signals we weigh alongside the verdict above.
- This report is a record of the scan run on July 14, 2026, and the verdict reflects that point in time. Scam sites change fast — they can go live, get flagged, or vanish within days — so if you believe something about ocn.ne.jp has changed, MalwareTips staff can run a fresh scan that re-checks every signal from scratch and republishes an updated verdict.
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