Introducing Fiddler Web Debugging for Performance and Operations www.fiddler2.com/perf/

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Presentation transcript:

Introducing Fiddler Web Debugging for Performance and Operations

About Eric  Program Manager - Internet Explorer IE7: Networking; IE8: Security  Developer of TamperIE, IEToys, Fiddler, Meddler, etc…

What is Fiddler?  Freeware Web Debugging Platform  Easily installed from  Runs as a local proxy; registers as system proxy while capturing  View, analyze and modify web traffic from any application that supports a proxy; including most devices (e.g. Windows Mobile)  Enables HTTPS interception via self-signed certificate  Extremely extensible, via JavaScript or.NET assemblies

Intercepting Web Traffic

HTTPS support  Man-in-the-middle – Intercepts HTTPS CONNECT tunnels and shows raw traffic

Fiddler for Performance Measure / analyze / simulate the end-user experience. Measure request size, page weight Analyze caching, compression, page composition Simulate low-speed / high-latency connections

Performance Statistics

Session Timeline

Filters

Custom Rules

Traffic Modification Redirect requests to a particular datacenter Simulate a downed server Prototype the performance cost of site changes Etc…

Traffic Archives Preserves the traffic and timings in compressed.SAZ (Session Archive ZIP) format Great for regressing bugs Remote user capture using FiddlerCap

FiddlerCap -

Meddler -

Learn More…  for tutorials, demonstration videos, references, RSS, and the Fiddler Discussion Group  for performance-related content