Just a personal blog, and I have to admit it had a misconfiguration that was my fault - nonexistent urls would redirect to the index. Still, dumb scraper bots would 1) not realize there was a redirect loop and kept trying every possible url, and 2) they were doing so aggressively enough that it brought the site down a couple of times. A well-behaved crawler would have slowed down and noticed the loop, never had issues with crawlers for years until the advent of ai.