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yomiuri.co.jp

TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
Leaf Certificate
Subject www.yomiuri.co.jp
Issuer Cybertrust Japan SureServer EV CA G3
Valid From Oct 20, 2025
Valid Until Nov 18, 2026 (93 days)
Algorithm SHA256-RSA
Subject Alternative Names
www.yomiuri.co.jpyomiuri.co.jpot.yomiuri.co.jpkomachi.yomiuri.co.jpkomachi-t.yomiuri.co.jppageviewer.yomiuri.co.jppageviewer-t.yomiuri.co.jp
Intermediate
Subject Cybertrust Japan SureServer EV CA G3
Issuer
Valid From Dec 13, 2023
Valid Until May 29, 2029 (1016 days)
Algorithm SHA256-RSA

Findings

⚠ TLS 1.2 in use
✓ SSL certificate valid (93 days remaining)
✓ Certificate covers 7 domains (SANs)

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Other reports for yomiuri.co.jp

Security Headers
CSP, HSTS, X-Frame-Options grade for this site
DNS Lookup
Query A, AAAA, MX, TXT, NS, CNAME, and SOA records with authoritative timing.
Redirect Checker
Trace the full HTTP redirect chain, flag loops, and surface mixed-content downgrades.

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