shinko-keirin.co.jp

ShInkO-KeirIn.co.jp

Shinko-Keirin publishes educational materials for Japanese elementary, middle, and high school students, including textbooks and supplementary teaching resources. The company serves educators and schools with curriculum-aligned content across subjects including mathematics, science, social studies, and English.

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Authority

—/100

Safety

90/100

3 of 4 safety checks passed (Sep 17, 2026).

AboutUs has not vetted this site. 1 of 4 automated safety check did not pass. Everything below is what we could measure automatically. Anything you do on the site — paying, sharing personal details, downloading — is between you and the site, not AboutUs.

Current facts

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Authority & Safety, with the evidence

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Authority: not enough signals yetClear

Why we're not scoring this yet

We withhold an authority number until independent evidence (global rank, link-graph presence) has accrued. The facts we do have about this site are shown below — we'd rather say “not enough signals yet” than invent a low score.

Safety evidence

Retained threat-feed result (recorded about 24 days ago); name-similarity check available (recorded about 24 days ago); 3/3 transport and email checks available (oldest recorded about 24 days ago). This is evidence coverage, not a probability that a website is safe.

Missing DMARC (mild)

Site history

Dated record — historical facts always carry their date.

2026
Checked today — 3 of 4 safety checks passed (Sep 17, 2026).

✓ live verified Sep 17, 2026

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