Here you can find some basic information about our certificates regarding type, validation & duration.
Signature Algorithm
At ZeroSSL we issue certificates with SHA-384 signature algorithm by default.
Validation
ZeroSSL offers Domain Validation (DV) certificates.
At the moment we do not offer Organization Validation (OV) or Extended Validation (EV), because we would have to vet identity information. DV SSL Certificates are fully supported and come with the advantage of being issued almost immediately and without the need to submit company paperwork. This makes DV SSL ideal for businesses needing low-cost SSL quickly and without much effort.
Revocation information protocol - OCSP vs. CRL
ZeroSSL is using OCSP for certificate revocation.
CRL certificate extensions are not available for certificates issued via ZeroSSL.
Duration
The following certificate duration is available:
- 90 days
- 1- year
Type
The following type is available:
- Conventional SSL Certificates - can be issued as multidomain certificates
- Wildcard certificates - cannot be issued as multidomain certificates
⚙️ Format
The following format is available:
| File Type | Extensions |
| PEM | .key, .cer, .pem or .crt |