introducing fiddler web debugging for performance and operations
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Introducing Fiddler
Web Debugging for Performance and Operations
www.fiddler2.com/perf/
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About Eric Program Manager - Internet Explorer
IE7: Networking; IE8: Security
Developer of TamperIE, IEToys, Fiddler, Meddler, etc…
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What is Fiddler?
Freeware Web Debugging Platform
Easily installed from www.fiddler2.com
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
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Intercepting Web Traffic
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HTTPS support Man-in-the-middle – Intercepts HTTPS CONNECT tunnels and
shows raw traffic
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Fiddler for PerformanceMeasure / analyze / simulate the end-user experience.
• Measure request size, page weight
• Analyze caching, compression, page composition
• Simulate low-speed / high-latency connections
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Performance Statistics
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Session Timeline
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Filters
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Custom Rules
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Traffic Modification
• Redirect requests to a particular datacenter• Simulate a downed server• Prototype the performance cost of site changes• Etc…
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Traffic Archives
• Preserves the traffic and timings in compressed .SAZ (Session Archive ZIP) format
• Great for regressing bugs
• Remote user capture using FiddlerCap
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FiddlerCap - www.fiddlercap.com
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Meddler - www.fiddler2.com/meddler/
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Learn More…
www.fiddler2.com/fiddler/help/ for tutorials, demonstration videos, references, RSS, and the Fiddler Discussion Group
www.fiddler2.com/perf/ for performance-related content