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SSL Certificate: astm.org

🟢 Valid Certificate
Common Nameastm.org
OrganizationAmerican Society for Testing and Materials
IssuerDigiCert Inc
Issuer CNDigiCert EV RSA CA G2
Valid FromFeb 26 00:00:00 2026 GMT
Valid UntilSep 12 23:59:59 2026 GMT (133 days left)
Serial Number0437A3C1F46F93E583E3548393AD1A85
ℹ️ About SSL Certificates

SSL (Secure Sockets Layer) certificates encrypt data between your browser and astm.org's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real Astm website.

Websites without valid SSL certificates may show browser warnings and are penalized in search engine rankings.