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royalsociety.org

TLS 1.3 TLS_AES_256_GCM_SHA384
Leaf Certificate
Subject *.royalsociety.org
Issuer Sectigo Public Server Authentication CA DV R36
Valid From Feb 12, 2026
Valid Until Mar 15, 2027 (211 days)
Algorithm SHA256-RSA
Subject Alternative Names
*.royalsociety.orgroyalsociety.org
Intermediate
Subject Sectigo Public Server Authentication CA DV R36
Issuer Sectigo Public Server Authentication Root R46
Valid From Mar 22, 2021
Valid Until Mar 21, 2036 (3505 days)
Algorithm SHA384-RSA
Intermediate
Subject Sectigo Public Server Authentication Root R46
Issuer Sectigo Public Server Authentication Root R46
Valid From Mar 22, 2021
Valid Until Mar 21, 2046 (7157 days)
Algorithm SHA384-RSA

Findings

✓ TLS 1.3 supported
✓ SSL certificate valid (211 days remaining)
✓ Certificate covers 2 domains (SANs)

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Other reports for royalsociety.org

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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