Web Performance must become a priority from Top to Bottom, and vice versa. Performance monitoring is a journey, not a destination, similar to continuous build and agile dev! Yes it’s about great user experience, but ultimately it’s about the bottom line! (Slow Performance is the Silent Killer, the New Downtime - 2010!)
Items which can impact performance:
- Datacenter(s): Location, Location Location!
- Network(s), Latency & Geography
- Hardware (servers, load balancers, network…)
- DNS
- CDN & CDN Configuration (just caught 2 cdns one using http 1.0 Close Connection and the other not compressing)
- Proper Capacity Planning
- Application (web, databases, frameworks…)
- Code
- 3rd Parties
- Smart and efficient use of Hardware
- Engineers + Ops working in sync
- Web Performance Team (EVEN if it’s one person)
- NOC or Site Reliability guys, the Watchdogs
- Finally, the “Executive Team” that's making sure all of the above elements are receiving the proper resources and support, with the ultimate goal of getting your company headed towards a great user experience and level of performance
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