66Fair

yomiuri.co.jp

scanned 4/9/2026 in 0.7s

SSL

Headers

✓

Valid certificate from Cybertrust Japan Co., Ltd.

Expires: 11/18/2026 (223 days)

✓

Protocol: TLSv1.2

Key: 2048 bits

SANs: www.yomiuri.co.jp, yomiuri.co.jp, ot.yomiuri.co.jp, komachi.yomiuri.co.jp, komachi-t.yomiuri.co.jp, pageviewer.yomiuri.co.jp, pageviewer-t.yomiuri.co.jp

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Monitor yomiuri.co.jp

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!No DMARC record — your domain can be spoofed
!No HSTS header — browsers won't enforce HTTPS
!Security headers grade D — most headers missing

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