10 Replies - 1444 Views - Last Post: 07 April 2011 - 05:07 PM

#1 modi123_1  Icon User is online

  • Suitor #2
  • member icon



Reputation: 8372
  • View blog
  • Posts: 31,116
  • Joined: 12-June 08

Bots, watermarking, and image copy prevention..

Posted 04 April 2011 - 12:35 PM

In another post on a different sub forum I was engaging an individual in a discussion regarding people just wandering off with your image and throwing it on their site. This poster made me aware of bots that trawl through sites and update OTHER sites will ill-begotten images and desktop wallpapers.

Exactly how is this done, and how do I stop it? Do they just rape through all your images, and the owners are left to pick through a gazillion images of little Sally Sue's baby, or are there parameters they use? Specific file types they are looking for? Keywords? Is there a way to name my files or page or something outside the search parameters for these bots?

Do these bots respect the "robots.txt"? I would assume no, but I had to ask.

I am going to bet that having my host 'deny hotlinking' is not going to prevent these bots, right?

So what do you do with these bots?

How about in general? Watermark the whole image (like that can't be undone)? That sort of kills the presentation, right? Not keep your images on line? Shrug and say "tots cool - my image wanted to be free and now it is liberated from my clutches!

Is This A Good Question/Topic? 2
  • +

Replies To: Bots, watermarking, and image copy prevention..

#2 modi123_1  Icon User is online

  • Suitor #2
  • member icon



Reputation: 8372
  • View blog
  • Posts: 31,116
  • Joined: 12-June 08

Re: Bots, watermarking, and image copy prevention..

Posted 04 April 2011 - 02:51 PM

Hmmm.. well I know that I'll be flipping on the 'no hot linking' business. Truth be told I haven't turned it on just to see if anyone is hijacking my bandwidth and possibly trapping them with something super inappropriate "same name image swap". You know, for the lullz.

Then again I also compress my images down a lot. This saves on band with, makes them horrible when blown up, and makes me cry that some of the detail goes MIA. I figure if I get the idea across but crush the usability that's a compromise, right?

I don't want to do the stupid "no right click", but I might do something with the php that I don't know.. strips the extension name off it so it renders okay but when people attempt to save it'll throw up a "no file found" message. Yeah.. that would be stellar.
Was This Post Helpful? 0
  • +
  • -

#3 lemonchicken  Icon User is offline

  • D.I.C Head

Reputation: -5
  • View blog
  • Posts: 76
  • Joined: 11-December 10

Re: Bots, watermarking, and image copy prevention..

Posted 04 April 2011 - 03:18 PM

they only trawl image boards like 4chan /wg

lol

This post has been edited by lemonchicken: 04 April 2011 - 03:18 PM

Was This Post Helpful? 0
  • +
  • -

#4 BetaWar  Icon User is online

  • #include "soul.h"
  • member icon

Reputation: 1104
  • View blog
  • Posts: 6,917
  • Joined: 07-September 06

Re: Bots, watermarking, and image copy prevention..

Posted 04 April 2011 - 04:31 PM

While there are dumber bots out there which simply grab all images a site has there are also smarter ones which use more interesting algorithms to attempt and figure out what the image is prior to grabbing it (in fact there are image search engines popping up).

Most bots at this point are used for personal stuff or malicious reasons so they don't pay attention to robots.txt, but I would assume that the image search engines would attempt to at least follow the standards out there.

Deny hotlinking will likely have no effect on the bots, they will just download the image and save it locally. You could potentially come up with a server-side script (along with Apache or whatever) which puts out a blank image upon direct access of the file. Though it may also block the browser from including the image in an HTML page... not sure...
Was This Post Helpful? 0
  • +
  • -

#5 modi123_1  Icon User is online

  • Suitor #2
  • member icon



Reputation: 8372
  • View blog
  • Posts: 31,116
  • Joined: 12-June 08

Re: Bots, watermarking, and image copy prevention..

Posted 04 April 2011 - 05:42 PM

Yeah, I've been pondering it. An interesting problem to say the least.
Was This Post Helpful? 0
  • +
  • -

#6 GhandiJones  Icon User is offline

  • D.I.C Head
  • member icon

Reputation: 54
  • View blog
  • Posts: 174
  • Joined: 17-March 11

Re: Bots, watermarking, and image copy prevention..

Posted 04 April 2011 - 07:05 PM

Theoretically, this might work. Store all images into an image folder and drop an index file in. Then, when you call your image files for the site, do it through your database. I don't know a lot about robots, so if this isn't feasible, I apologize. But, I'd definitely try breaking up the names by using my database/PHP.

This post has been edited by GhandiJones: 04 April 2011 - 07:06 PM

Was This Post Helpful? 0
  • +
  • -

#7 Lemur  Icon User is offline

  • Pragmatism over Dogma
  • member icon



Reputation: 1335
  • View blog
  • Posts: 3,398
  • Joined: 28-November 09

Re: Bots, watermarking, and image copy prevention..

Posted 04 April 2011 - 09:26 PM

There are ways that you can obscure images and make it extremely difficult to grab them. One way is to take the images and apply a second image over them (transparent or water marked) to make right click near impossible. I'm not sure on this one but there is a way to have a php script display an image but be unable to open it otherwise (via regular navigation)
Was This Post Helpful? 0
  • +
  • -

#8 Creecher  Icon User is offline

  • I don't care
  • member icon

Reputation: 561
  • View blog
  • Posts: 2,049
  • Joined: 06-March 10

Re: Bots, watermarking, and image copy prevention..

Posted 07 April 2011 - 04:19 PM

Couldn't you just use

<meta name="robots" content="noindex">


?
Was This Post Helpful? 0
  • +
  • -

#9 Lemur  Icon User is offline

  • Pragmatism over Dogma
  • member icon



Reputation: 1335
  • View blog
  • Posts: 3,398
  • Joined: 28-November 09

Re: Bots, watermarking, and image copy prevention..

Posted 07 April 2011 - 04:32 PM

View PostNeverPool, on 07 April 2011 - 06:19 PM, said:

Couldn't you just use

<meta name="robots" content="noindex">


?


That's assuming the robots creator put that functionality in. Highly unlikely unless a legit firm made it.
Was This Post Helpful? 0
  • +
  • -

#10 Creecher  Icon User is offline

  • I don't care
  • member icon

Reputation: 561
  • View blog
  • Posts: 2,049
  • Joined: 06-March 10

Re: Bots, watermarking, and image copy prevention..

Posted 07 April 2011 - 04:38 PM

View PostLemur, on 07 April 2011 - 06:32 PM, said:

View PostNeverPool, on 07 April 2011 - 06:19 PM, said:

Couldn't you just use

<meta name="robots" content="noindex">


?


That's assuming the robots creator put that functionality in. Highly unlikely unless a legit firm made it.

True.

Would disabling Hotlinking work, or is that only for keeping other people from using your linked content?

(edit: assuming they don't download it)

This post has been edited by NeverPool: 07 April 2011 - 04:51 PM

Was This Post Helpful? 0
  • +
  • -

#11 Lemur  Icon User is offline

  • Pragmatism over Dogma
  • member icon



Reputation: 1335
  • View blog
  • Posts: 3,398
  • Joined: 28-November 09

Re: Bots, watermarking, and image copy prevention..

Posted 07 April 2011 - 05:07 PM

Pretty much exactly that. Some artists actually charge to download wallpaper packs but even if they don't post the images they forget to protect their archives.
Was This Post Helpful? 0
  • +
  • -

Page 1 of 1