Hello!
I have an idea that it caused by fact that their CDN provider returns error “error code: 1107” when we do query via IPv6:
curl -6 https://api.hubapi.com
HTTP/2 403
< date: Tue, 29 Aug 2023 15:04:55 GMT
< content-type: text/plain; charset=UTF-8
< server: cloudflare
When I disable IPv6 it works just fine:
curl -4 https://api.hubapi.com
<html>
<head><title>302 Found</title></head>
<body>
<center><h1>302 Found</h1></center>
<hr><center>nginx</center>
</body>
</html>
It may be configuration error or some third party issue.