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Really surprised to see that according to this data, Sectigo issues more than twice as many certificates as DigiCert.

I have the habit of checking the CA for every website I visit, and my impression from that personal survey is that DigiCert is vastly more common than any other CA, except of course Let's Encrypt.

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I'd imagine a large part of that would be because Cloudflare uses Sectigo for its "Universal SSL"

Educause also has a partnership with InCommon that uses Sectigo to issue certs. I work at a relatively small school and we have thousands of certs issued by effectively Sectigo. I'd imagine there's lots and lots of Educause members that are taking advantage of this.

https://www.educause.edu/about/incommon

https://incommon.org/certificates/faq/

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