How we blocked TikTok's Bytespider bot and cut our bandwidth by 80%

I don't get what Bytedance is doing here. Clearly they are not actively trying to evade blocks, as they are idenifying their bot with a user agent sites can block.

However, surely they have enough smart engineers there to realize that running a bot at full speed (and, based on other reports, completely ignoring robots.txt) will get them blocked by a lot of sites.

If they just had a well behaved spider, almost no one would mind. Getting crawled is a fact of life on the internet, and most website owners recognize it as an essential cost of doing busses. Once you get a reputation as a bad spider, though, that is very hard to shake.

I didn't see it mentioned, but why not just use robots.txt? Does Bytespider ignore it?

Is returning a 403 based on the user agent worth a blog post? Also, can't Bytespider just change their user agent to Byte-Spider? Or, just make their user agent a random string? It will be a forever arms race and require constant code updates to keep chasing that bot by user agent. You're probably better off whitelisting the known user agents and blocking everything else.

Also, does it really require a specific "gem"? This is HTTP request filtering, the router (as in the real router, like the metal box with network cables) can probably do it by itself these days.

This is the worst behaved bot I have ever seen, I suspect it is AI related. I recently decided to block all the AI crawlers - unlike search engines I get nothing from them.

Is it just me or is that site a bit broken? Weirdly dark.

Edit: Nice try on the vote brigade guys. lol

Can large companies not be faulted for ignoring robots.txt? Seems like something GDPR could enforce for personal(ly owned) sites?