Is niwayosisaiseki.com legit or a scam?
Established Japanese aggregate supplier with conflicting signals: legitimate business history but multiple antivirus detections and low trust-aggregator score.
These checks passed — but they don't clear the site. A clean antivirus result, valid SSL, and a calm server only mean it isn't hosting malware; they say nothing about whether the business is real. This verdict is based on the site's conduct and content, not a malware detection.
Analysis Summary
Critical risk detected
9 of 92 antivirus engines flag this page as malicious. Multiple independent checks — antivirus engines, browser safety blocklists, and threat databases — flagged this site. Don't enter personal information, deposit money, or download files.
Website Preview

Automated page render — captured in a safe sandbox. What an ordinary visitor would see when loading the site.
MT Intelligence
The domain niwayosisaiseki.com belongs to 株式会社丹羽由砕石 (Niwa Yoshi Saiseki Co., Ltd.), a construction-materials company in Shiga/Kyoto that claims 55 years of operation as of 2022. The page content, written in Japanese, describes a legitimate business supplying aggregate and construction materials to regional infrastructure projects. However, six antivirus engines—including BitDefender, CyRadar, Fortinet, ADMINUSLabs, Chong Lua Dao, and CRDF—flag the domain as phishing or malicious, which is unusual for a genuine corporate site. Independent trust aggregators rate it 40/100 (questionable). The domain is 3,193 days old (nearly 9 years), has valid SSL, and the hosting IP shows no abuse history, all consistent with a real business. The absence of contact email, phone, or address on the page is atypical for a company claiming active operations, though this may reflect a minimal web presence rather than intent to defraud. The antivirus detections may reflect a false-positive cluster or a compromised page element, but the combination of detections and poor trust scores warrants caution.
Web Research Findings
Our live research agent queries scam-report databases, consumer-review sites, news coverage, and general web search for niwayosisaiseki.com, then cross-checks business-registration records and look-alike domain patterns. Everything below is pulled from what it actually found.
No scam reports or complaints found in available sources.
Antivirus Engines
Security Scans
Checked against the major public blocklists used by browsers and security tools — no hits.
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.
Domain & Encryption
Server Reputation
Avoid this site
Our automated review flagged enough risk that you should treat this site as unverified.
- Do not interact with niwayosisaiseki.com
Do not enter credentials, deposit money, download files, or install browser extensions from this site.
- Verify the business through independent channels
Check the company's social profiles, registry records, and search for recent news or reviews that are not hosted on the site itself.
- Never use irreversible payment methods
Crypto, gift cards, wire transfers, and cash apps offer zero buyer protection. Use a credit card or PayPal if you must pay.
- OpenShare your experience
If you have additional context, drop a comment below or post on the MalwareTips forum.
Reputation Sources
How this domain rates across independent threat-intelligence and blocklist providers.
Safety FAQ
Common questions about this site, answered directly from the scan data above — so the answers always reflect the latest verdict on this page.
- Our automated security review flags niwayosisaiseki.com as dangerous. Multiple threat indicators were detected — treat the site as a scam until proven otherwise.
- No — niwayosisaiseki.com scored 1/100 on our trust scale. We detected active threat indicators, so we recommend avoiding the site entirely.
- Yes. niwayosisaiseki.com presents a valid TLSv1.3 certificate issued by Let's Encrypt · R12, expiring in 59 days. Note that SSL only encrypts the connection — it does not guarantee that the site itself is trustworthy.
- niwayosisaiseki.com is 8.7 years old, registered on 9/19/2017 through GMO Internet Group, Inc. d/b/a Onamae.com. Scam domains are often freshly registered — a site under 6 months old warrants extra caution.
- 12 out of 92 antivirus engines in our malware network flagged niwayosisaiseki.com as malicious or suspicious (9 outright malicious). Even one detection is a meaningful signal.
- No. niwayosisaiseki.com is not currently listed on the major browser blocklist feeds that modern browsers use.
- niwayosisaiseki.com resolves to an IP operated by XSERVER Inc. in JP (usage type: Data Center/Web Hosting/Transit). Hosting location alone doesn't make a site good or bad, but unusual geography for a brand's claimed country is one of many signals we weigh.
- Independent trust-rating sites currently show the following for niwayosisaiseki.com: ScamAdviser: 40/100. Those scores come from user reviews and their own heuristics, so they are worth comparing against our verdict.
User reviews & comments(0)
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