XPost: alt.windows7.general, alt.computer.workshop   
   From: V@nguard.LH   
      
   "J. P. Gilliver"  wrote:   
      
   > On 2025/12/24 17:4:43, VanguardLH wrote:   
   >> "J. P. Gilliver"  wrote:   
   >>   
   >>> ... on some others I get the "please wait while we check you're a   
   >>> human", or similar wording, from cloudflare, which then connects me   
   >>> to those sites after a few seconds.   
   >>   
   >> Those, even if only a checkbox you click, are looking for behaviors   
   >> (events) exhibited by humans visiting a web site versus bots or web   
   >> crawlers trying to harvest content, or zombied hosts attempting DDOS   
   >> (Distributed Denial of Service) attacks.  The site assaults their good   
   >> visitors with anti-bot/DDOS/webcrawl filtering.   
   >>   
   >> Their CAPTCHA could be a simple checkbox you click, and they'll notice   
   >> it takes you time to move your mouse to click on it versus a bot that   
   >> instantly clicks on the checkbox.  Could be "match the tiles" on some   
   >> common theme, like all tiles with bicycles, or you drag a tile to fill   
   >> in a jigsaw picture, or you solve a math formula.  The site assaults you   
   >> with interferrence trying to protect themself from bots, web crawlers,   
   >> and DDOS (Distributed Denial of Service) attacks.  They're hoping to   
   >> protect their site to keep it responsive to real visitors by   
   >> interferring with accessing the site by bots, but it is interferrence to   
   >> their good visitors, too.  In effect, it is a weak form of requiring all   
   >> visitors to login before the site delivers its content.   
   >   
   > Sometimes they're a "pick the pictures" (often with an American word,   
   > like "crosswalk"), sometimes they're just a tickbox (where yes, they can   
   > track your mouse); sometimes, they don't require you to do _anything_,   
   > they just "decide" you're human after a few seconds. Not sure how they   
   > can use your action - or lack thereof! - to decide how human you are.   
      
   A bot would likely immediately click on the checkbox instead of take   
   time to recognize it was there to move the mouse over to it and click on   
   the checkbox.  Unlikely you would happen to have the mouse pointer at   
   the spot on the screen where the checkbox shows up to instantly click on   
   it when it appeared.  There's probably a slew of heuristics to determine   
   if events generated by a web page were human sourced or scripted.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)