Getting SSL issues for the past 2 months, heroku says DNS is at fault

What is the name of the domain?

backend.fyctia.com

What is the error message?

SSL Certificate Error

What is the issue you’re encountering

This is a continuation of my previous issue, which was closed but not resolved. Our users are reporting very frequent error encounters while using our app. It can occur more than 10 times in a minute for a given user, on any type of HTTP call to our domain. It started occuring about 2 months ago, has never stopped since.

What steps have you taken to resolve the issue?

Contacted Heroku support, they say everything is fine on their end and directed me to my DNS supplier, so here I am!

I tried opening a support ticket but got rejected, so I created a topic here but it got locked without any solution.

What feature, service or problem is this related to?

I don’t know

What are the steps to reproduce the issue?

Browse the app at backend.fyctia.com (not very doable if not authenticated), interacting with its various routes until the SSL error appears.

Screenshot of the error

2 posts were merged into an existing topic: Getting 502s and ssl certificate issues from cloudflare for the past week

I’ve re-opened your previous topic and merged the posts.