HAR to Page Speed. Generate PageSpeed scores from a HAR (HTTP Archive format) file. (Use pcapperf to convert pcap files to HAR.) examples: CNN, Google search, Yahoo search, Wikipedia. Create your own HAR files using Firebug and NetExport. HAR is the file suffix for files generated using the HTTP Archive format. It's a file specification for capturing the HTTP experience of downloading a web page: HTTP headers, file sizes, download times, etc. HAR is fairly new, but it's already supported by Firebug and HttpWatch. PageSpeed (download) is a web performance analysis Firefox add-on (similar to YSlow).
HarViewer is an open source project from Honza for drawing an HTTP waterfall chart from HAR files. Why is this useful? Releasing the PageSpeed SDK (all open source) is one step closer to having a common performance metric across all web development tools and environments. Diagnose and Prevent AJAX Performance Issues - dynaTrace software. Planet Performance. What Is Blaze Optimization?