Concrete 18.104.22.168 First Byte Time
I know there are several discussions about the first byte time for concrete5 sites, but i haven't found any solution yet.
It's the only obstacle i need to tackle so i can fully optimize the loading times of our sites.
For example :http://www.grafomantestsite1.be
Fully optimize images, cache settings, ...
Check the screenshot from webpagetest.org.
Is there any way to improve this?
There are multiple factors that might occasionally make the first byte time go up, such as temporary load on the server (e.g. a lot of search engine bots fetching the content), temporary network lag / packet loss, etc.
After running the test myself for the same site, I got "B" for the first byte time (504ms / 400ms suggested) and all tests show green.
If you want to reduce the 104ms, I think you might not be using your time very well, unless this is a site that gets millions of hits every day. This is about 2% of the total front page load time, and there are probably other ways you can squeeze that extra 100ms out more easily if you want.
From the results I can see that you're already using a caching frontend (Varnish), so the reason for the extra 100ms is not probably even in concrete5. I would look into re-configuring the server running Varnish if you want to micro-optimize your site with the extra 100ms.