Here is a list of some free-to-use timestamping servers together with their relevant certificates:
| Provider | URL | Certificate bundle | Web page |
|---|---|---|---|
| DFN-Verein e.V. | http://zeitstempel.dfn.de |
cacert.pem | Link |
| DigiCert Inc. | http://timestamp.digicert.com |
cacert.pem | Link |
| freeTSA | https://freetsa.org/tsr |
cacert.pem | Link |
| GlobalSign | http://rfc3161timestamp.globalsign.com/advanced |
cacert.pem | Link |
ℹ Note: You can find a list of additional, free-to-use timestamping servers here.
ℹ Note: The author of this repository is in no way affiliated with any of the organizations/service providers listed above.