In gtmetrix it shows it take more than 2 seconds to get the first byte - https://snipboard.io/lrGJnE.jpg
However, udemy take less than a second - https://snipboard.io/6VdlPO.jpg
I use siteground as hosting and I configured cloudfare correctly via help of siteground.
Is there anyway I can decrease my redirect/first byte time?
I have three errors when I run a test in cloudfare
Non-Cloudflare nameservers found
2.The site does not have any DNSSEC records.
The hostname has no DS records.
I cannot find the error names in siteground