Hi fellow geeks, I'm not a developer and I need help cuz my developer is not a problem solver. (yeah yeah will change him soon) anyway this is the issue:

I have several websites on Joomla and the issue is if I add a random page ID to the end of the URL it shows that page with a messed up styling which I do not understand why? I have done everything to prevent Joomla from showing my website with Page ID.

For example: https://alexanders.co.nz/web-design-christchurch.html this is...

Any solution for Joomla Page ID issue?