From August 19th 2020, SECTIGO issues SSL certificates with a maximum lifetime of 398 days (13 months) as specified by CA/Browser consortium. SSL certificates with a longer lifetime must be re-issued annually (free of charge). You'll receive reminders via e-mail. SSL certificates issued before August 19th 2020 remain valid until their planned expiry date. Code Signing & S/MIME certificates are not affected and remain valid until their planned expiry date.

SSL Security Check

Use the following tools to verify and test your SSL setup. Besides important basic requirements like a complete & valid Certificate Chain you can improve security of your SSL setup by carefully selecting high quality Cipher Suites. Additionally, configuring HTTP Strict Transport Security (HSTS) will further improve security.

WEBSERVER CHECK: Qualys SSL Labs
https://www.ssllabs.com/ssltest/

SSL Labs
  WEBSERVER CHECK: GeoTrust SSL Checker
https://ssltools.geotrust.com/checker/views/certCheck.jsp

GeoTrust SSL Checker
 
WEBSERVER CHECK: Security HTTP Headers
https://securityheaders.io

SecurityHeaders.io Check
  WEBSERVER CHECK: MOZILLA Observatory
https://observatory.mozilla.org/

Mozilla Observatory




Other useful tools:

Haredenize (Web and Mailserver check)
https://www.hardenize.com

CryptCheck (Ciphers)
https://tls.imirhil.fr/ | A interssl.com

HSTS preload
https://hstspreload.org/

ROBOT Attack Checker
https://robotattack.org/

Drown Attack Checker
https://drownattack.com/

SSL Certificate Search
https://crt.sh/?

badssl.com
https://badssl.com

Tutorial: HTTP public key pinning
https://scotthelme.co.uk/hpkp-http-public-key-pinning/