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SSL Certificate: www.astm.com

🟢 Valid Certificate
Common Nameastm.com
OrganizationAmerican Society for Testing and Materials
IssuerDigiCert Inc
Issuer CNDigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid FromJun 25 00:00:00 2026 GMT
Valid UntilJan 9 23:59:59 2027 GMT (183 days left)
Serial Number0F4C119373B23E76EBC90796F7D509AF
🌐 Subject Alternative Names (2)
ℹ️ About SSL Certificates

SSL (Secure Sockets Layer) certificates encrypt data between your browser and www.astm.com'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.