Is it possible Litespeed cache slow down page?

Do you have access to SSH?

Thank you for response. Not sure about that, as this is a bit enigmatic topic for me.

This is not a enigmatec topic. This is witchcraft! ??

There is a way to check if your server might be overloaded. That’s why I asked you if you have access to SSH. SSH is the so-called Secure Socket Shell, which gives you direct access to your server, but this is not always possible, especially with shared hosting. That’s why we have to go a different way if the term SSH doesn’t mean anything to you. But you have FTP access to your server, right?

Yes I have. Please tell me where in FTP I can exactly check it ??

You can’t see it in FTP, but you need FTP to temporary upload a file that shows the load of your server. For this do that:

1. Use MS Windows Editor and create a text file with name of your choice and store it on your local computer.
2. Change file extension from .txt to .php and open it again with Notepad.
3. Copy this code in this file and store it again.

<?php

function isGetLoadAvg() {
    if (false !== function_exists('sys_getloadavg')) {
        return true;
    }
    return false;
}

if (isGetLoadAvg()) {
    $load = sys_getloadavg();
    print "<pre>";
    print_r($load);
    print "</pre>";
}else{
    echo "This server doesn't support function to check server load.";
}

4. Upload this file to your server where WordPress is installed, request file in browser and post the result.
5. Remove the file from your server.

Thank you.

Result:

Array
(
[0] => 16.56
[1] => 16.02
[2] => 16
)

Okay, now run the crawler and while crawler is running check the load again.

Sorry for question, but I am not so much in programming namings. What is crawler?

Crawler has nothing to with programming. It’s a function in cache plugin. See menu link -> crawler in cache pluging navigation..

Thank you. I pressed: Manually run under LiteSpeed Cache Crawler > Summary. Not sure if it was not already active.

Now result is:

Array
(
[0] => 17.47
[1] => 18.48
[2] => 18.82
)

• This reply was modified 1 year, 10 months ago by cosiek.

These values are harmless. Since the crawler can be the only possible reason for a higher load and your provider also says that everything is okay, then your server is probably just a bit unwell, has a cold or you are being too strict with it. ??

Sorry, but I can’t help you there.

Thank you for your time and appreciate your help ??

Also see I have a lot of POST requests like i.e.

https://imperiumromanum.pl/wp-admin/admin-ajax.php
[HTTP/2 500 Internal Server Error 4669ms]

500 error is mostly PHP error , please check your PHP error log

Thank you. I enabled the debug mode to gather issues in debug.log. Should I paste the observed issue for your checking?

I was referred to php error log , but debug log may also contains that , you can share it if you wish , let’s see if we can spot anything