Why is the site not loading periodically?

Question

Computer networks

The situation is as follows, I am developing a site on the hosting "Gino". Periodically 1 time / in 1 hour (10 minutes) the site is not loaded. Namely, eternal loading occurs and "Error 504 Gateway Timeout (time out) nginx" pops up. This happens only to me, at the time of the error for any other user, the site loads without problems.
I wrote to Gino support and asked to send them a ping and a tracer to the site at the time of the problem, but nothing was found, they said everything was fine on their part. Where to dig?
I got into the search engines and began to poke everything in a row, clearing the DNS cache through start> run> ipconfig / flushdns does not help. I went to the site from the anonymizer at the time of the problem, it’s also not clear, sometimes it turns out to go in, sometimes not. Please help me figure it out!

Logs for today (There were 2-3 errors, approximately from 11:00 to 15:30 Moscow time): pastebin.com/6UMB2qF2
Characteristics: windows xp, opera chrome firefox browsers, Jino hosting (cloud for Joomla cms), web-kreditor site .ru

Answer 1

And so what happens to you nginx works for you and proxies to Apache?
At this time, Apache is not available, but your session is not available. Because everyone else can see everything.
And it may not be available for several reasons.
1. increase the time limit by 10 times and see if there is a change.
2. increase the max connection in the virtual host
3. Find a heavy script on the site and optimize it, whatever it is
4. Look at the frequency of the crons, if there is something there, then this is it.
5. Apache logs to the studio at this moment, moreover, only eror.

Answer 2

In any incomprehensible situation, look at the logs.

Answer 3

Spoiler is inserted like this

header

<spoiler title=Заголовок>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</spoiler>

Answer 4

I asked Gino operators questions and the answers were as follows:
1. It is required to increase the time limit by 10 times.
2. Increase the max connection in the virtual host.
(Operator: Unfortunately, it will not be possible to implement this within the framework of virtual hosting.)
3. How to check kroner for periodicity.
(Operator: No running tasks are visible.)
4. How to view Apache logs.
(Operator: There are no error logs, because no errors were recorded.)
PS - Many people will say why I contacted them at all, but this year I just started to try myself as a
layout designer. This is horror, not hosting. The problem is not solved.