Details for

C (79)
Current YSlow grade: C (79)
A (93)
Current Page Speed score: A (93)

Measurements over time

Page Size (in bytes); Page Load time (YSlow) (in ms); Total Requests; YSlow Grade (0-100); Page Speed Grade (0-100); Page Load time (Page Speed) (in ms);

YSlow breakdown

Basic measurements
Overall rank C (79%)
Page Size444285 bytes
Amount of requests with empty cache49Page Load time0 ms
Best practices
Make fewer HTTP requests F (24%)
Use a Content Delivery Network (CDN) F (0%)
Add Expires headers F (0%)
Avoid Empty Image src A (100%)
Compress components with gzip B (89%)
Put CSS at top A (100%)
Put JavaScript at bottom A (100%)
Avoid CSS expressions A (100%)
Make JavaScript and CSS external F (0%)
Reduce DNS lookups F (35%)
Minify JavaScript and CSS A (100%)
Avoid URL redirects A (100%)
Remove duplicate JavaScript and CSS A (100%)
Configure entity tags (ETags) A (100%)
Make AJAX cacheable A (100%)
Use GET for AJAX requests A (100%)
Reduce the number of DOM elements A (100%)
Avoid HTTP 404 (Not Found) error A (100%)
Reduce cookie size A (100%)
Use cookie-free domains A (100%)
Avoid AlphaImageLoader filter A (100%)
Do not scale images in HTML A (100%)
Make favicon small and cacheable A (100%)

Page Speed breakdown

Basic measurements
Page size11610 bytesPage load time472 ms
Transfer size of all resources467135 bytesTotal Requests60
Overall grade A (93%)
Optimize caching
Leverage browser caching E (50%)
Leverage proxy caching C (79%)
Minimize round-trip times
Minimize DNS lookups A (100%)
Minimize redirects A (91%)
Avoid bad requests A (100%)
Combine external JavaScript A (100%)
Combine external CSS A (100%)
Combine images using CSS sprites A (100%)
Optimize the order of styles and scripts A (100%)
Avoid document.write F (0%)
Avoid CSS @import A (100%)
Prefer asynchronous resources A (100%)
Parallelize downloads across hostnames A (100%)
Minimize request overhead
Minimize request size B (87%)
Serve static content from a cookieless domain F (0%)
Minimize payload size
Enable compression A (100%)
Remove unused CSS D (62.6%)
Minify JavaScript A (98%)
Minify CSS A (100%)
Minify HTML A (96%)
Defer loading of JavaScript F (0%)
Optimize images A (100%)
Serve scaled images A (100%)
Serve resources from a consistent URL A (100%)
Optimize browser rendering
Use efficient CSS selectors F (6.5%)
Put CSS in the document head A (100%)
Specify image dimensions D (64%)
Specify a character set early A (100%)

YSlow measurements history (csv)

Page Speed measurements history (csv)