sv_downloadurl: what about addons?? HELP!

Hello! I have unlimited web space for my server and I have uploaded all my content to my server, and am sure I configured it correctly other than the addons. Maps auto download, so I know that’s right. Everytime someone joins my server, they have to download assmod and ulx lua files. So my question is, what is the correct way to install addons onto the web server? I have tried to extract the folders inside the addon folder to outside the addon folder, but the lua files still download everytime. Where do the lua files go that are inside the lua folder? Help!