Slow board and lot of 503 error

[Markos]

In the last days i see that my board was very slow...that's now dued for traffic (same average members), so i don't know what's the problem.

Maybe it's an addon, i've installed some new addons in the last days...now i've removed few of them.

How i can do to determine what are creating the load?

 

[rdn]

Enable debug mode, review every query.
Review what addon is taking up highest load/query time.

Avoid using those addon that is poorly coded (sorry but even me cannot exactly point which one but just stick with those highly reputable developer like @Chris D @xfrocks and many others )

 

[Walter]

Disable all addons you have installed in the last days. If the forum is fast, enable one addon at a time and you will see the addon that is slowing down your forum.

 

[Suzanne O]

Might be an idea to check with your host if you are with one to see if it's an issue with their servers.
It's also a good idea to ask your isp to ask why their servers are running too slow.

 

[Markos]

Disable all addons you have installed in the last days. If the forum is fast, enable one addon at a time and you will see the addon that is slowing down your forum.

I know this system, i have many addons so i asked if there are a faster system to do it.

Thank you for all your replies!