Details for http://www.rivalspot.com/main...

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D (68)
Current YSlow grade: D (68)
 A (93)
Current Page Speed score: A (93)

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Measurements over time

YSlow metrics
Basic measurements
D (68%)
949KB
104 0 ms
Best practices
Make fewer HTTP requests F (0%)
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 (95%)
Avoid CSS expressions A (100%)
Make JavaScript and CSS external F (0%)
Reduce DNS lookups A (100%)
Minify JavaScript and CSS F (0%)
Avoid URL redirects A (90%)
Remove duplicate JavaScript and CSS A (100%)
Configure entity tags (ETags) A (100%)
Make AJAX cacheable A (95%)
Use GET for AJAX requests A (95%)
Reduce the number of DOM elements F (0%)
Avoid HTTP 404 (Not Found) error A (100%)
Reduce cookie size A (100%)
Use cookie-free domains F (0%)
Avoid AlphaImageLoader filter A (100%)
Do not scale images in HTML F (45%)
Make favicon small and cacheable A (100%)
Page Speed metrics
Basic measurements
1832KB 15663 ms
972KB 113
A (93%)
Optimize caching
Leverage browser caching B (83%)
Leverage proxy caching B (88%)
Remove query strings from static resources F (23%)
Specify a Vary: Accept-Encoding header E (52%)
Minimize round-trip times
Minimize DNS lookups n/a Minimize redirects A (95%)
Avoid bad requests A (100%)
Combine external JavaScript n/a
Combine external CSS n/a Combine images using CSS sprites A (100%)
Optimize the order of styles and scripts B (85%)
Avoid document.write n/a
Avoid CSS @import A (100%)
Prefer asynchronous resources A (100%)
Parallelize downloads across hostnames n/a
Minimize request overhead
Minimize request size A (100%)
Serve static content from a cookieless domain n/a
Minimize payload size
Enable compression A (98%)
Remove unused CSS B (89.6%)
Minify JavaScript C (72%)
Minify CSS B (87%)
Minify HTML B (86%)
Defer loading of JavaScript n/a
Optimize images A (92%)
Serve scaled images A (100%)
Serve resources from a consistent URL A (100%)
Optimize browser rendering
Use efficient CSS selectors F (0%)
Put CSS in the document head A (100%)
Specify image dimensions F (14%)
Specify a character set early A (100%)

YSlow measurements history (csv)

Page Speed measurements history (csv)