Any limit of size for Web Site Filtering lists?

Any limit of size for Web Site Filtering lists?
Does a very large added list choke the bandwidth? Or is it not practical.

Yes there is a limit on the amount of websites you can define in a given category, though I do not know the size limit, other than a file that is around 10 MB will not persist after reboot bug report here. I don’t think a large list will affect bandwidth.

Thank you for the quick informative answer.