Can you elaborate on how these "TikTok tracking scripts" are implemented? Such content blocks are generally implemented via enterprise policies, mandatory-to-install extensions, or even network-based blocks. I've never heard of this being accomplished via scripts.

"The TikTok Pixel is a piece of code that you can place on your website that allows advertisers to share website visitor events with TikTok via browser."

https://ads.tiktok.com/help/article/tiktok-pixel#

(they call it a "pixel" but it's JS)

If a network-based block was in place, could this "pixel" script still communicate with analytics.tiktok.com using the IP Protection proxies?

Oh I see, sorry I had misread you initial message - the blocking is separate from the tracking script.

Yes, in that scenario the entity performing the block at the network would need to also disable IP Protection. This is similar to how Encrypted Client Hello will hide destinations from network observers but can be disabled by browser enterprise policies