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How to download the root certificate from I am unable to locate the root certificate that is required to set up the thingspeak broker.

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I am using MQTT for ThingSpeak. I am following the tutorial on the given link.
the issue is, as written in the example, root certificate needs to be downloaded from (screenshot also attached) but I am unable to find it on website.
Please help how can i get this?

Accepted Answer

Vinod on 5 Jul 2022
Here are instructions on how you can download the certificate for any website. For ThingSpeak MQTT broker, you can download the cert from For the longest lived certificate, you will want to get the certificate of the Certification Authority, in this case Digicert. If you still have trouble, please post what you have tried.

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