Site is serving lot of requests uncached and loads too slow; giving 502 bad gateway.
Over the last 6 hours 77% of your requests have been served from cache. Over the last week 72% of requests have been.
Currently your origin LB is returning 502 bad gateway to requests.
curl -Ik --resolve www.yoursite.com:your.lb.ipaddress http://www.yoursite.com
HTTP/1.1 502 Bad Gateway
Date: Thu, 23 Aug 2018 15:12:48 GMT
Server: nginx/1.10.3 (Ubuntu)
Cloudflare would get the same response when attempting to connect to your origin, not sure what is wrong there, but it’s an origin issue.
Thanks for letting me know the issue.
Have fixed the load balancer now. Could you please check if this all good now.