In my experience, the single biggest bully on the internet are the servers controlled by Meta which in my experience literally perform DDoS attacks whilst crawling, hitting sites several orders of magnitude more than all the others combined.
Actively blocking them was the only option left.
cmnybo@discuss.tchncs.de
on 26 Mar 03:21
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Are there any good log monitoring programs that will automatically blacklist the IP of any crawler that ignores robots.txt?
midribbon_action@lemmy.blahaj.zone
on 26 Mar 07:49
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Yeah, I’ve been curious if you could explicitly block a page in robots.txt, hide an invisible link to the same page in your footer, then kinda have it act like an immediate IP block when someone requests it.
CapriciousDay@lemmy.ml
on 26 Mar 16:36
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I guess it depends too much on the nature of the crawler. Does it actually extract links from robots.txt or is it merely ignoring them? If the crawlers are distributed, do page hits come from the same IP that the robots.txt was hit from?
It gets harder and harder to get away from CDNs and captchas, which are not exactly good things from an open source POV for the most part.
mic_check_one_two@lemmy.dbzer0.com
on 27 Mar 22:02
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There are systems that will use a hidden hyperlink (which only a bot would see and use) which directs them to an infinitely long/wide junk link tree. It means they end up trapped in bot-purgatory and stop crawling the rest of your site.
The issue is that it means you end up consuming resources just to keep the bot trapped.
marauding_gibberish142@lemmy.dbzer0.com
on 27 Mar 22:27
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We need something better than Anubis that can run with JS disabled
threaded - newest
In my experience, the single biggest bully on the internet are the servers controlled by Meta which in my experience literally perform DDoS attacks whilst crawling, hitting sites several orders of magnitude more than all the others combined.
Actively blocking them was the only option left.
Are there any good log monitoring programs that will automatically blacklist the IP of any crawler that ignores robots.txt?
Yeah, I’ve been curious if you could explicitly block a page in robots.txt, hide an invisible link to the same page in your footer, then kinda have it act like an immediate IP block when someone requests it.
I guess it depends too much on the nature of the crawler. Does it actually extract links from robots.txt or is it merely ignoring them? If the crawlers are distributed, do page hits come from the same IP that the robots.txt was hit from?
It gets harder and harder to get away from CDNs and captchas, which are not exactly good things from an open source POV for the most part.
There are systems that will use a hidden hyperlink (which only a bot would see and use) which directs them to an infinitely long/wide junk link tree. It means they end up trapped in bot-purgatory and stop crawling the rest of your site.
The issue is that it means you end up consuming resources just to keep the bot trapped.
We need something better than Anubis that can run with JS disabled