This is a community-edited list of which operating systems / browsers can connect to servers that use Let’s Encrypt certificates. More specifically, these systems trust the IdenTrust “DST Root CA X3” certificate that cross-signs ISRG’s issuing certificates. Android >= 2.3.6 (“DST Root CA X3” is inc…

There was no point censoring your domain there as the fingerprint can be used to look it up in the CT logs. Anyway it appears that the server is sending a cert for a completely different domain (issued by a different CA as well).

For just checking cert validity and chain, you can also use www.sslshopper.com that only perform test on that and so is quicker than SSL Labs .

Thanks for the tips guys. I think the problem lies with the conversion to a Java Keystore. I've sucessfuly done it just last week when the intermediate was X1 but now the cert chain is missing. I can convert it to jks with the X3 intermediate but now the root is missing. Any handy command line re…

There seems to be a problem with the PS4 Browser and let's encrypt: [image] Let's encrypt and the PlayStation 4 Browser: Missing CA certificate? Server T…

[image] pfg: Please use SSL Labs on your domain to verify there are no certificate chain issues. Or https://whatsmychaincert.com/ :smiley: That's by far the fastest analyse for this case.

I have removed the PS3 section (hope you don't mind, @mrtux :blush:). More details here: [image] Let's encrypt and the PlayStation 4 Browser: Missing CA certificate? Server T…

Here’s a complete list from a new certificate tested on Qualsys Labs yesterday. [image] [image] [image]

The list of browsers presented by sslabs doesn’t mean that the certificate is accepted there, it only checks the negotiated ciphers.

If there are no trust or chain issues in your certificate/server configuration, you can safely assume all the browsers with a correctly negotiated cipher will work.

This is not correct specifically for Java 6 and older Android. The Browser part is only be based on cipher suite and Protocol not certificate related.

Which browsers and operating systems support Let's Encrypt

Server

pfg May 15, 2016, 10:08am 45

I have removed the PS3 section (hope you don't mind, @mrtux ). More details here:

Topic		Replies	Views
[Help needed] Windows XP support	117	38279	March 28, 2016
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PLEASE cross-sign with another older CA before the 9/2021 deadline Feature Requests	21	4366	April 25, 2021
Users of older Android and Windows 7 not able to access website Help	25	10929	November 2, 2021
Please update the "Certificate Compatibility" page to include information about the new ISRG roots Site Feedback	22	3840	June 21, 2019

Which browsers and operating systems support Let's Encrypt

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