Amazon.com: Online Shopping for Electronics, Apparel, Computers, ...

Amazon.com: Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more
Mark
54/100
Integral Mark
44/100
Check Date
23 May 2011
Files Number
89
Files Size
430442
Load Time (33,6kbps)
155.41 s
Load Time (100 KB/s)
13.2 s
WEBO Site SpeedUp
1.63x
Possible Acceleration
73%
amazon.com

Advices

  • Automated website acceleration
    Install WEBO Site SpeedUp to your website amazon.com. It allows you to significantly increase its load speed and save up to 98% of its traffic.
  • HTML files can be minified.
    HTML files are already gzipped but in addition you can apply some of the minify techniques or (and) increase gzip level on server side. Optimal gzip level can be calculated with the following tool.
  • More than 1 CSS file is loaded.
    You should combine all files into one or may be even include them into HTML. It allows you to reduce the number of requests to the server.
  • CSS files can be minified.
    CSS files are already gzipped but additionally you can use this tool to compress CSS files (based on CSS Tidy).
  • CSS files are too large.
    You should reduce their size by exclusion unnecessary styles, minimization pathes to background images, re-group selectors, or review current classes/IDs naming logic.
  • Caching is disabled for static files.
    You should output all statis resources (images, CSS, JS and multimedia files) with caching headers (Cache-Control) to reduce number of requests to the server from browser when user visits your website in the second time or open different pages. How to enable caching for your website. Total non-cached files: 1.
  • Detected more than 1 JavaScript file.
    Yuo should combine all files into one or include them all into HTML. This will reduce number of requests to the server. Also you can use unobtrusive Javacript techniques to load your JavaScript files.
  • JavaScript files can be minified.
    You should use Packer from Dean Edwards or YUI Compressor (comparison of JavaScript minimization tools). After this you can gzip your JavaScript files (total benefit up to 85%).
  • JS files are too large.
    May be you should separate this to several parts and load only necessary resources. Also unobtrusive Javascript techniques can help.
  • Duplicates are detected.
    CSS and JavaScript duplicates must be removed. Multiple uses of the same images can be avoided with CSS rules and background images.
  • Redirects detected.
    Every redirect increases current resource load time, so it should be removed. Total detected redirects: 1.
  • Some of GIF images can be reduced in size.
    Detected GIF images that can be minified (total: 15) if converted to PNG (i.e. with gif2png tool). More about PNG benefits.
  • Some PNG images can be minified.
    Detected PNG images (total: 20) that can be minified (i.e. with pngcrush tool). More about PNG benefits.

Remarks

  • Inline event handlers detected.
    Detected event haldres size in HTML attributes onclick, onmouseover etc equals to 223 (1%). If all of event handlers are moved to an external file then global cacheability of all the website will increase and content will be separated from behaviour. May be unobtrusive JavaScript and this combined window.onload handler can help.
  • More than 1 CSS image is loaded.
    You should combine CSS images with the CSS sprites technique (and the following tool). So you will reduce numebr of requests to the server.
  • CSS images size is very large.
    Perhaps it can be reduced if you use another graphic format or inlcude only necessary CSS rules.
  • More than 1 image is loaded.
    Perhaps it's possible to decrease their quantity by Image Map technique.
  • Images size is very large.
    Perhaps it's possible to decrease their size if you use another graphic format or include only necessary images on the page.
  • 1-pixel GIF (spacers) detected.
    There are some 1-pixel GIF (size 43 bytes) in website files (total 1)) detected. There is every likelihood that they are improperly used for some decorative effects (elemens borders substitutions or background holders). Now browsers support all kind of CSS tricks very well so you don't need to use any of table-layout methods and can clean up your HTML code from such outdated hacks. This will reduce number of requests to the server and make you HTML code more semantic and less in size (about 30% with moving to div from table).

Check once more?

To prevent any automaticall check and make the server tired we have restricted the number of online checks for each website. If you want to check your website once more right now please register — you will be able to test your websites unlimitely.

You can place this button to indicate that your website is speeded up with Web Optimizator:

Optimization results for amazon.com (size about 6Kb)

Website files influence

CSS images40%
JavaScript23%
Images20%
CSS13%
HTML3%
How different website parts influence website load speed

Detailed statistics

FileType / MIMESizeMin. sizeETag / Last-ModifiedCache time (s)
 
Total files: 89 / 420KbGain if minified: 60897
Total non-cached files: 1Gain without duplicates: 29415
Total gain: 90312 (21%)
/ (redirects: 1)HTML / html3046722720
Total HTML files: 13046722720Gain if compressed: 7747
site-wide-57035...CSS / css75085691 Wed, 27 Apr 2011 05:56:19630720000
websiteGridCSS-...CSS / css63264737 Tue, 29 Mar 2011 19:38:49630720000
s9-widget._V178...CSS / css2836 x 22509 x 2 Wed, 18 May 2011 20:18:07630720000
US-combined-273...CSS / css26242112 Thu, 28 Apr 2011 22:25:17630720000
US-combined-657...CSS / css19341582 Fri, 15 Apr 2011 12:04:14630720000
sd_style-v1.1.1...CSS / css13571312 Tue, 07 Sep 2010 22:10:03630720000
detailPageStati...CSS / css27962397 Wed, 15 Dec 2010 06:13:36630720000
ciuCSS-ciuAnnot...CSS / css17901480 Tue, 28 Dec 2010 00:57:12630720000
share-with-frie...CSS / css15661272 Sat, 19 Feb 2011 00:51:15630720000
amazonShoveler-...CSS / css10711010 Tue, 20 Jan 2009 03:20:53630720000
style-3._V24898...CSS / css353 Wed, 25 Feb 2009 15:49:51630720000
combined-368904...CSS / css32572519 Tue, 13 Jul 2010 21:28:53630720000
Total CSS files: 133625429483Gain if compressed: 6771
site-wide-10148...JS / javascript4505537884 Fri, 20 May 2011 03:48:12630720000
s9-multipack-mi...JS / javascript1147 x 2 Thu, 27 Jan 2011 15:23:54630720000
swfobject-1.5.j...JS / javascript24592309 Wed, 21 Mar 2007 20:11:15
music-player._V...JS / javascript13521335 Mon, 29 Mar 2010 16:17:28630720000
300x250_grocery...JS / javascript25432 x 212004 x 2 Sat, 17 Nov 2007 08:34:39596800865
tmmJS-combined-...JS / javascript38223443 Fri, 29 Apr 2011 08:54:01630720000
twister-dpf.b64...JS / javascript4018032470 Fri, 13 May 2011 10:13:24630720000
amazonShoveler-...JS / javascript46234210 Thu, 27 Jan 2011 00:49:54630720000
cmuAnnotations-...JS / javascript1297610814 Wed, 12 Jan 2011 03:00:39630720000
accessoriesJS-a...JS / javascript24422403 Sat, 26 Mar 2011 03:01:03630720000
share-with-frie...JS / javascript23622335 Fri, 07 Jan 2011 02:14:24630720000
lazyLoadLib-laz...JS / javascript1158 Tue, 20 Jul 2010 18:53:57630720000
priceformatterJ...JS / javascript761 Fri, 29 May 2009 20:56:26630720000
script-13-min._...JS / javascript824 Mon, 18 May 2009 10:07:44630720000
ratings-bar-366...JS / javascript45023752 Tue, 05 Jan 2010 19:26:40630720000
Total JavaScript: 16150242117996Gain if compressed: 32246
sprite-accessor...CSSIMG / png88405568 Tue, 12 Jan 2010 23:20:40595607710
sprite-communit...CSSIMG / png1119610606 Wed, 13 Oct 2010 23:48:55611718117
sprite-dp-2._V1...CSSIMG / png1997919872 Sat, 23 Oct 2010 23:34:17612484711
sprite-media-pl...CSSIMG / png71267101 Fri, 06 Mar 2009 23:57:31597231944
sprite-meters._...CSSIMG / png599559 Tue, 17 Feb 2009 08:27:59613527730
sprite-music-sa...CSSIMG / png11131057 Tue, 17 Feb 2009 08:39:08613487459
sprite-site-wid...CSSIMG / png1371013274 Thu, 28 Apr 2011 20:04:28628628862
sprite-arrow-v....CSSIMG / png24072390 Fri, 17 Jul 2009 21:59:45597092397
sprite-h._V2193...CSSIMG / png43593672 Fri, 17 Jul 2009 22:08:27625858553
sprite-v._V2193...CSSIMG / png181137 Fri, 17 Jul 2009 22:07:57595515686
po_bottom_left....CSSIMG / png11541112 Thu, 07 Aug 2008 17:08:59597496804
po_bottom_right...CSSIMG / png1142 Thu, 07 Aug 2008 17:11:19597492835
po_bottom._V265...CSSIMG / png210158 Thu, 07 Aug 2008 17:08:50597158071
po_left_17._V24...CSSIMG / png166123 Wed, 11 Mar 2009 21:54:11597157960
po_right_17._V2...CSSIMG / png172125 Wed, 11 Mar 2009 22:26:06602327458
po_top_left._V2...CSSIMG / png819808 Thu, 07 Aug 2008 16:58:48603011217
po_top_right._V...CSSIMG / png948891 Thu, 07 Aug 2008 17:10:10597483576
po_top._V265110...CSSIMG / png181119 Thu, 07 Aug 2008 16:53:14602327617
items-selected-...CSSIMG / gif178 Thu, 03 Jun 2010 00:41:40600222602
items-selected-...CSSIMG / gif224 Wed, 02 Jun 2010 23:27:31613501980
items-selected-...CSSIMG / gif100 Wed, 02 Jun 2010 23:27:55613517294
items-selected-...CSSIMG / gif206 Thu, 03 Jun 2010 00:41:39613515477
loadIndicator-l...CSSIMG / gif74417427 Tue, 25 May 2010 02:33:11600134696
left-arrow-semi...CSSIMG / gif999681 Mon, 12 Jan 2009 20:53:40598896708
left-right-arro...CSSIMG / gif17591025 Mon, 12 Jan 2009 18:19:34594135405
loading-indicat...CSSIMG / gif1104 Wed, 02 Jun 2010 22:10:34600124443
loading-indicat...CSSIMG / gif1104 Thu, 12 Jul 2007 01:25:57596285437
right-arrow-sem...CSSIMG / gif1008682 Wed, 02 Jun 2010 16:59:32602075188
bluebox-corners...CSSIMG / gif636488 Tue, 18 May 2010 03:57:37600124984
bluebox-sides._...CSSIMG / gif246104 Tue, 18 May 2010 10:00:36600125023
sliced-box-bl._...CSSIMG / gif642258 Thu, 15 Nov 2007 20:59:19596871824
sliced-box-br._...CSSIMG / gif641258 Sun, 04 Nov 2007 17:08:01597037892
sliced-box-tbev...CSSIMG / gif332308 Thu, 22 Nov 2007 23:15:34597299167
sliced-box-tl._...CSSIMG / gif1178290 Thu, 01 Nov 2007 18:25:23597277901
sliced-box-tr._...CSSIMG / gif1175288 Thu, 01 Nov 2007 17:29:00597299461
separator._V178...CSSIMG / png345260 Wed, 18 May 2011 16:54:21630720000
playbutton-ie._...CSSIMG / png1394 Tue, 16 Mar 2010 12:23:05630720000
playbutton._V21...CSSIMG / png1668 Tue, 16 Mar 2010 12:24:26630720000
spinner._V20678...CSSIMG / gif2291 Thu, 03 Jun 2010 03:13:08630720000
shoveler-button...CSSIMG / png1343 Thu, 24 Jun 2010 08:49:58630720000
transparent-pix...CSSIMG / gif43 Fri, 12 Sep 2008 10:13:33630720000
left-right-arro...CSSIMG / gif17591025 Mon, 12 Jan 2009 18:19:35630720000
loading-indicat...CSSIMG / gif1104 Wed, 02 Jun 2010 22:14:29630720000
Total CSS images: 4310322292567Gain if minified: 10655
417XQ0XwQuL._SL...IMG / jpeg3340 Thu, 29 Jul 2010 04:26:28630720000
4192cojYusL._SL...IMG / jpeg3961 Tue, 05 Jan 2010 00:03:16630720000
41GlucUmxOL._SL...IMG / jpeg3063 Wed, 18 May 2011 19:56:14630720000
41ic7W7ajeL._SL...IMG / jpeg4943 Fri, 06 May 2011 14:31:53630720000
41x6o5vDbAL._SL...IMG / jpeg3951 Tue, 05 Jan 2010 23:28:17630720000
51pvLIvb6ZL._SL...IMG / jpeg4838 Fri, 09 Jul 2010 02:25:38630720000
camera-springca...IMG / png83407410 Mon, 25 Apr 2011 18:11:40628363154
navAmazonLogoFo...IMG / gif12161096 Fri, 25 Feb 2011 23:54:54623525922
navPackedSprite...IMG / png7279 Thu, 17 Mar 2011 01:33:43625014964
kindle-internat...IMG / png2845627644 Mon, 21 Feb 2011 23:28:39622938723
GatewayR1-1._V1...IMG / gif51753937 Mon, 25 Apr 2011 17:55:24628361864
B000EQR6H0._V19...IMG / jpeg3167 Fri, 04 Jun 2010 04:48:15600234526
B0019FP47E._V19...IMG / jpeg3399 Fri, 04 Jun 2010 04:48:30600234765
B001A62M04._V19...IMG / jpeg3654 Wed, 02 Jun 2010 20:12:22600117384
transparent-pix...IMG / gif43 Fri, 12 Sep 2008 10:13:33600139577
Total images: 16110257106779Gain if minified: 3478

Website load diagram

Website load diagram for amazon.com helps to understand what are the main bottlenecks in website load. Register to get more information about your website.

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See also

You can read more about Web Optimizatior analyzer here.