Details for http://www.marthastewart.com/...

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D (62)
Current YSlow grade: D (62)
 C (79)
Current Page Speed score: C (79)

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Measurements over time

YSlow metrics
Basic measurements
D (62%)
1785KB
135 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 F (0%)
Put CSS at top A (100%)
Put JavaScript at bottom B (85%)
Avoid CSS expressions B (88%)
Make JavaScript and CSS external F (0%)
Reduce DNS lookups F (0%)
Minify JavaScript and CSS B (80%)
Avoid URL redirects F (40%)
Remove duplicate JavaScript and CSS A (100%)
Configure entity tags (ETags) F (0%)
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 F (0%)
Avoid AlphaImageLoader filter A (100%)
Do not scale images in HTML B (80%)
Make favicon small and cacheable A (100%)
Page Speed metrics
Basic measurements
3813KB 13188 ms
1677KB 136
C (79%)
Optimize caching
Leverage browser caching D (61%)
Leverage proxy caching A (91%)
Remove query strings from static resources B (89%)
Specify a Vary: Accept-Encoding header B (81%)
Minimize round-trip times
Minimize DNS lookups n/a Minimize redirects C (77%)
Avoid bad requests A (100%)
Combine external JavaScript n/a
Combine external CSS n/a Combine images using CSS sprites F (22%)
Optimize the order of styles and scripts A (100%)
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 (95%)
Serve static content from a cookieless domain n/a
Minimize payload size
Enable compression A (90%)
Remove unused CSS F (35.9%)
Minify JavaScript E (59%)
Minify CSS C (71%)
Minify HTML B (85%)
Defer loading of JavaScript n/a
Optimize images F (20%)
Serve scaled images A (100%)
Serve resources from a consistent URL A (95%)
Optimize browser rendering
Use efficient CSS selectors F (0%)
Put CSS in the document head A (100%)
Specify image dimensions F (35%)
Specify a character set early A (90%)

YSlow measurements history (csv)

Page Speed measurements history (csv)