Tag: fiddler

  • .NET

    Fiddler ImageView GeoLocation

    In my previous post, I discussed the recent enhancements to Fiddler’s ImageView extension that expose metadata about image files under inspection. My initial goal in exposing metadata was to help you optimize the size of images in order to build faster websites. However, in some cases the privacy implications of such metadata can be of far greater concern.
    January 17, 2013
  • .NET

    Manipulating Traffic with Fiddler Extensions

    A key advantage Fiddler has over a traditional packet sniffer or in-browser network monitor is the ability to modify the traffic. This can be done manually (using breakpoints and Inspectors) or automatically, using FiddlerScript or extensions. In today’s post, I’d like to introduce one such extension—ContentBlock
    January 14, 2013
  • .NET

    Capturing Traffic from .NET Services with Fiddler

    When Fiddler launches and attaches, it adjusts the current user’s proxy settings to point at Fiddler, running on 127.0.0.1:8888 by default. That means that traffic from most applications automatically flows through Fiddler without any additional configuration steps.
    January 08, 2013
  • .NET

    Evaluating Certificates in Fiddler and FiddlerCore

    In this post, I’ll demonstrate a proposal called Convergence, which attempts to detect targeted attacks against HTTPS traffic—for instance, from within a specific locale or country. Here’s how Convergence works: when the client connects to a HTTPS site, it obtains its certificate. It then consults a set of servers around the world, called notaries, and checks to see whether the site in question is sending the same certificate to all of those servers as well.
    January 03, 2013
  • .NET

    Performance Optimization with Fiddler

    Every December, Web Performance guru Stoyan Stefanov (@stoyanstefanov) corrals folks around the web performance community to collect insights and best practices on building faster websites and services.
    December 26, 2012
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