If you’re looking to self-host an analytics solution or a similar sort of script, there’s a higher level of difficulty to contend with to self-host it. You may find that some third-party scripts simply can’t be self-hosted, but that doesn’t mean it isn’t worth the trouble to find out. If you find that self-hosting isn’t an option for a third-party script, don’t fret. There are other mitigations you can try
https://mlsdev.com/blog/it-outsourcing-companies.