Stories
Slash Boxes
Comments
NOTE: use Perl; is on undef hiatus. You can read content, but you can't post it. More info will be forthcoming forthcomingly.

All the Perl that's Practical to Extract and Report

The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
 Full
 Abbreviated
 Hidden
More | Login | Reply
Loading... please wait.
  • I tried, but after 30 seconds of looking at a blank white screen and "loading from didtheyreadit.com" (or whatever the name is), I (the human, not a program) timed out and hit the bak button. There's a limit to how much I'll do, even for science.
    • I discoverd the same thing. They are doing something tricky: they just keep sending data. They keep sending data to you do something else. This way they know for how long you read the message, which is about the same time their program ran.

      So, this is even more diabolical than I thought! They are also sucking bandwidth. Imagine a company deciding to use this (the intended market, I'm thinking), and that another company gets a lot of email from them. That is almost a denial-of-service attack! Lots o
      • I loaded the URL with wget.

        It is coming across at 1 B/s.

        [waiting...]

        Turned out to be 302 bytes large.
        • 302 bytes, eh?

          That would be about 5 minutes at 1 B/s, and they claim to measure times much longer than that. How long did it actually take? Did it get slower the longer it went on?
          • It was almost exactly 1 B/s the entire time.

            I'd almost bet that they eventually count bytes transferred as the method of doing the timing.

            We may actually be seeing wget, or some other part of the stack, giving up on the connection... the fact that it was almost exactly 5 minutes is suspect to me.
  • Now the referer on all of those clicks is http://use.perl.org/~brian_d_foy/journal/19205
  • Some companies who provide "ad campaign" services do this. Helps them track who reads what, and what email addresses are valid, and get rough geographical info on the reader/address. I once was speaking with a guy who owns an "ad campaign" service and he said they find that some people will bounce SPAM, but still read the email. Then, they know that even though a bounce came back, someone read the mail and the email is considered valid.

    "Phone Home" for email. I dunno, not sure I would trust a service from
  • http://www.panix.com/~comdog/didtheyreadit.html [panix.com]

    The only thing i have changed is the email address at the top, where I inserted "CENSORED".
  • That anyone today still loads random images embedded in an HTML email baffles me.
    • If you are forced to use MS Outlook, eg at work, then you have no choice. It will load the damn things no matter how hard you try to get it not to.

      /me still trying to tunnel mails out of exchange without OutLook.