SSL Certification and Web Security – A Guide


DigiCert vs Sectigo – feature comparison

Now, let’s take a closer look at each metric and compare them.

Key size and encryption strength

The key size determines the number of combinations it takes to break an encryption algorithm. Both DigiCert and Sectigo offer 2048 Bit keys so their encryption is very hard to break. The encryption strength is also the same for both, which is 256-Bit.

Root Domain Support

Sectigo and Digicert now secure and cover domains both with and without www.

Validation level

Both Digicert and Sectigo support all the validation certificate types, including domain validated certifications. However, Digicert brand does not offer DV SSL – the most basic and common type – except under its sub-brands. So, Digicert itself serves more enterprise-level needs whereas many users search for DV SSL with Sectigo. 

Multiple Domains and Sub-Domains

If we want to cover multiple or sub-domains with SSL certification, both Sectigo and DigiCert provide multi-domain certificates called SAN certificates. We can add up to 250 Multi-domain SANs with DigiCert and 100 SANs with Sectigo.

Issuing Authority

Comodo Ca is a well-reputed brand with more than 20 years of experience. They rebranded themselves in fall 2018 to Sectigo, but they still have the largest market share of CAs. DigiCert, formerly known as Symantec, has also been around the block for many years and has vast industry experience.

Certificate Costs

With so many free SSL certificates available in the market, it sounds like a feasible idea to settle for one. But with premium certifications, you get both customer support and value for money. On top of that, OV and EV SSLs provide a further layer of customer trust as the certificate itself lists the business or registered organisation. They can’t be issued to individuals. 

Both DigiCert and Sectigo offer premium customer support and services. 





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