Is there a way to display personalized messages in the console section when visitors access the developer tools on my website?

During a recent exploration of the dev tools on Reddit.com and Facebook.com, I noticed that both sites had custom messages specifically targeting developers who access the console. Reddit was actively recruiting developers through an ad, while Facebook had a warning in the console section cautioning users against pasting code that could compromise their accounts.

I'm interested in implementing a similar feature on my website. Would this be achieved through modifying the header or footer in HTML?

Answer №1

When examining Reddit's source code using developer tools, you'll come across a peculiar line:

        console.log("\n                  ,d\"=≥,.,qOp,\n                 ,7'  ''²$(  )\n                ,7'      '?q$7'\n             ..,$$,.\n   ,.  .,,--***²\"\"²***--,,.  .,\n ²   ,p²''              ''²q,   ²\n:  ,7'                      '7,  :\n ' $      ,db,      ,db,      $ '\n  '$      ²$$²      ²$$²      $'    Using Reddit at work? Work for Reddit.\n  '$                          $'        https://www.reddit.com/jobs\n   '$.     .,        ,.     .$'\n    'b,     '²«»«»«»²'     ,d'\n     '²?bn,,          ,,nd?²'\n       ,7$ ''²²²²²²²²'' $7,\n     ,² ²$              $² ²,\n     $  :$              $:  $\n     $   $              $   $\n     'b  q:            :p  d'\n      '²«?$.          .$?»²'\n         'b            d'\n       ,²²'?,.      .,?'²²,\n      ²==--≥²²==--==²²≤--==²\n")

This is simply a console.log() statement. Feel free to test it out yourself by using the snippet below:

console.log("\n                  ,d\"=≥,.,qOp,\n                 ,7'  ''²$(  )\n                ,7'      '?q$7'\n             ..,$$,.\n   ,.  .,,--***²\"\"²***--,,.  .,\n ²   ,p²''              ''²q,   ²\n:  ,7'                      '7,  :\n ' $      ,db,      ,db,      $ '\n  '$      ²$$²      ²$$²      $'    Using Reddit at work? Work for Reddit.\n  '$                          $'        https://www.reddit.com/jobs\n   '$.     .,        ,.     .$'\n    'b,     '²«»«»«»²'     ,d'\n     '²?bn,,          ,,nd?²'\n       ,7$ ''²²²²²²²²'' $7,\n     ,² ²$              $² ²,\n     $  :$              $:  $\n     $   $              $   $\n     'b  q:            :p  d'\n      '²«?$.          .$?»²'\n         'b            d'\n       ,²²'?,.      .,?'²²,\n      ²==--≥²²==--==²²≤--==²\n")

To add color to the browser's console output, use this code (not functional in a SO snippet, but works when copied into the browser console):

console.log('%c This is reversed! ', 'background: #ee11cc; color: #eee');

You can also locate the ad code within the source by conducting a search.

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