Block? Nope, robots.txt does not block the bots. It's just a text file that says: "Hey robot X, please do not crawl my website. Thanks :>"
this post was submitted on 18 Aug 2024
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Privacy
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I disallow a page in my robots.txt and ip-ban everyone who goes there. Thats pretty effective.
Did you ban it in your humans.txt too?
humans typically don't visit [website]/fdfjsidfjsidojfi43j435345 when there's no button that links to it
I used to do this on one of my sites that was moderately popular in the 00's. I had a link hidden via javascript, so a user couldn't click it (unless they disabled javascript and clicked it), though it was hidden pretty well for that too.
IP hits would be put into a log and my script would add a /24 of that subnet into my firewall. I allowed specific IP ranges for some search engines.
Anyway, it caught a lot of bots. I really just wanted to stop automated attacks and spambots on the web front.
I also had a honeypot port that basically did the same thing. If you sent packets to it, your /24 was added to the firewall for a week or so. I think I just used netcat to add to yet another log and wrote a script to add those /24's to iptables.
I did it because I had so much bad noise on my logs and spambots, it was pretty crazy.
This thread has provided genius ideas I somehow never thought of, and I'm totally stealing them for my sites lol.
I LOVE VISITING FDFJSIDFJSIDOJFI435345 ON HUMAN WEBSITES, IT IS ONE OF MY FAVORITE HUMAN HOBBIES. ~~🤖~~👨
Can you explain this more?
Imagine posting a rule that says "do not walk on the grass" among other rules and then banning anyone who steps on the grass with the thought process that if they didn't obey that rule they were likely disobeying other rules. Except the grass is somewhere that no one would see unless they actually read the rules. The rules were the only place that mentioned that grass.
I like the Van Halen brown M&M version. https://www.smithsonianmag.com/arts-culture/why-did-van-halen-demand-concert-venues-remove-brown-mms-from-the-menu-180982570/
Is the page linked in the site anywhere, or just mentioned in the robots.txt file?
Only in the robots.txt
Excellent.
I think I might be able to create a fail2ban rule for that.
Not sure if that is effective at all. Why would a crawler check the robots.txt if it's programmed to ignore it anyways?
cause many crawlers seem to explicitly crawl "forbidden" sites
Google and script kiddies copying code...
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smart
I doubt it'd be possible in most any way due to lack of server control, but I'm definitely gonna have to look this up to see if anything similar could be done on a neocities site.
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Robots.txt is honor-based and Big Data has no honor.
Unfortunate indeed.
“Can AI bots ignore my robots.txt file? Well-established companies such as Google and OpenAI typically adhere to robots.txt protocols. But some poorly designed AI bots will ignore your robots.txt.”
typically adhere. but they don’t have to follow it.
poorly designed AI bots
Is it a poor design if its explicitly a design choice to ignore it entirely to scrape as much data as possible? Id argue its more AI bots designed to scrape everything regardless of robots.txt. That’s the intention. Asshole design vs poor design.
This is why I block in a htaccess:
# Bot Agent Block Rule
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (BOTNAME|BOTNAME2|BOTNAME3) [NC]
RewriteRule (.*) - [F,L]
This is still relying on the bot being nice enough to tell you that it's a bot; it could just not.
Exactly. The only truly effectively way I’ve ever found to block bots is to use a service like Akamai. They have an add-on called Bot Manager that identifies requests as bots in real time. They have a library of over 1000 known bots and can also identify unknown bots built on different frameworks, bots that impersonate well known bots like Googlebot, etc. This service is expensive, but effective…
I wonder if there is an AI scraper block list I could add to Suricata 🤔
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This does not block anything at all.
It's a 1994 "standard" that requires voluntary compliance and the user-agent is a string set by the operator of the tool used to access your site.
https://en.m.wikipedia.org/wiki/Robots.txt
https://en.m.wikipedia.org/wiki/User-Agent_header
In other words, the bot operator can ignore your robots.txt file and if you check your webserver logs, they can set their user-agent to whatever they like, so you cannot tell if they are ignoring you.
robots.txt does not work. I don't think it ever has - it's an honour system with no penalty for ignoring it.
I have a few low traffic sites hosted at home, and when a crawler takes an interest they can totally flood my connection. I'm using cloudflare and being incredibly aggressive with my filtering but so many bots are ignoring robots.txt as well as lying about who they are with humanesque UAs that it's having a real impact on my ability to provide the sites for humans.
Over the past year it's got around ten times worse. I woke up this morning to find my connection at a crawl and on checking the logs, AmazonBot has been hitting one site 12000 times an hour, and that's one of the more well-behaved bots. But there's thousands and thousands of them.
Cloudflare just announced an AI Bot prevention system: https://blog.cloudflare.com/declaring-your-aindependence-block-ai-bots-scrapers-and-crawlers-with-a-single-click/
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robots.txt will not block a bad bot, but you can use it to lure the bad bots into a "bot-trap" so you can ban them in an automated fashion.
I'm guessing something like:
Robots.txt: Do not index this particular area.
Main page: invisible link to particular area at top of page, with alt text of "don't follow this, it's just a bot trap" for screen readers and such.
Result: any access to said particular area equals insta-ban for that IP. Maybe just for 24 hours so nosy humans can get back to enjoying your site.
Problem is that you're also blocking search engines to index your site, no?
Robots.txt: Do not index this particular area.
Problem is that you’re also blocking search engines to index your site, no?
No. That's why they wrote "this particular area".
The point is to have an area of the site that serves no purpose other than to catch bots that ignore the rules in robots.txt. Legit search engine indexers will respect directives in robots.txt to avoid that area; they will still index everything else. Bad bots will ignore the directives, index the forbidden area anyway, and by doing so, reveal themselves in the server logs.
That's the trap, aka honeypot.
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Wow. A lot of cynicism here. The AI bots are (currently) honoring robots.txt so this is an easy way to say go away. Honeypot urls can be a second line of defense as well as blocking published IP ranges. They’re no different than other bots that have existed for years.
In my experience, the AI bots are absolutely not honoring robots.txt - and there are literally hundreds of unique ones. Everyone and their dog has unleashed AI/LLM harvesters over the past year without much thought to the impact to low bandwidth sites.
Many of them aren't even identifying themselves as AI bots, but faking human user-agents.
It isn’t an enforceable solution. robots.txt and similar are just please bots dont index these pages. Doesn’t mean any bots will respect it
#TL;DR:
User-agent: GPTBot
Disallow: /
User-agent: ChatGPT-User
Disallow: /
User-agent: Google-Extended
Disallow: /
User-agent: PerplexityBot
Disallow: /
User-agent: Amazonbot
Disallow: /
User-agent: ClaudeBot
Disallow: /
User-agent: Omgilibot
Disallow: /
User-Agent: FacebookBot
Disallow: /
User-Agent: Applebot
Disallow: /
User-agent: anthropic-ai
Disallow: /
User-agent: Bytespider
Disallow: /
User-agent: Claude-Web
Disallow: /
User-agent: Diffbot
Disallow: /
User-agent: ImagesiftBot
Disallow: /
User-agent: Omgilibot
Disallow: /
User-agent: Omgili
Disallow: /
User-agent: YouBot
Disallow: /
Of course, nothing stops a bot from picking a user agent field that exactly matches a web browser.
Nothing stops a bot from choosing to not read robots.txt
Indeed, as has already been said repeatedly in other comments.
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