[TYPO3-dev] captcha

[Zorik]

I made some research on the issue of preventing "bad bots".

Following is a list of links and my personal comments.


http://spambot.sourceforge.net/
I find it useful and have no problem with this.

http://danielwebb.us/software/bot-trap/
The concept is a "must have" for every website owner. But the question is -
does all "useful crawlers", like google, yahoo, msn follow robots.txt?

http://bibledatabase.com/addon/sbp/index.html
https://www.thequod.de/en/comp/mysoft/spambothoney
I see it as quite useless. But, as I do not collect emails with my bots - I
dont care.

http://www.turnstep.com/cgi-bin/Spamthis.pl
http://www.turnstep.com/Spambot/Programs/Spamthis.pl.txt
http://www.turnstep.com/cgi-bin/Shovel.pl
http://www.turnstep.com/Spambot/Programs/Shovel.pl.txt
Interesting solutions. Don't know if useful.


http://diveintomark.org/archives/2003/02/26/how_to_block_spambots_ban_spybots_and_tell_unwanted_robots_to_go_to_hell
a very useful article. A "must read" for every web sysadmin/webmaster. (use
with care).

http://www.robotstxt.org/wc/robots.html
A "must know".



-- 
Zorik