Monitor Along the Transaction

Performance Tools Manual Page Measurement - Firefox+Firebug+Yslow, AOL Pagetest,

IBM Page Detailer, Keynote KITE

Real User Monitoring - Coradiant Truesight + Web.I, Tealeaf, Others

Internal Synthetic Monitoring - HP/Mercury SiteScope + BAC, Nagios, Many Others

External Synthetic Monitoring – Keynote, Gomez, WebMetrics

Network Analysis – Wireshark, Clearsight, ACE, NetQoS

In Depth Metrics – Opnet Panorama, Introscope, Quest (DB), many others

Load Testing – HP/Mercury LoadRunner, Jmeter, ab, many others

Monitoring Drawbacks Manual Page Measurement – Different results lead to contention

between stakeholder groups

Real User Monitoring – Very network setup dependent

Internal Synthetic Monitoring – Generates load, can sneak into reporting

External Synthetic Monitoring – Generates load, can sneak into reporting

Network Analysis – Information is buried and only useful in narrow scope

In Depth Metrics – Agents cause problems

Load Testing – Good load testing is an art unto itself

JavaScript/Page Beacons – Our experience with Web analytics based on these indicates up to 10% unreliability