Changes Affecting Xolphin as of 15 February 2024

Xolphin is now part of Sectigo. As part of our ongoing strategy to leverage the latest technology in our validation processes, and to improve Xolphin customers' validation times, Sectigo is updating the Xolphin platform and APIs. This means, however, that API changes are coming to Resellers who sell OV/EV SSL and Code Signing certificates issued by Sectigo.

For more information see our guide. For questions contact Xolphin Support.


  • This overview shows the browser compatibility of the by Xolphin delivered SSL certificates per CA. Here you can see exactly which root certificates are trusted by default by which browser or application. This list was compile...


  • On May 30, 2020 the commonly used Sectigo (Comodo) Root certificate, named the AddTrust External CA Root, will expire. This certificate is active since May 30, 2000 and since it's launch widely supported. The successor of thi...



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