Ways to improve website performance
Once the document (website's main page) has been downloaded, we
analyze it. It allows us to give webmasters some recommendations on how
to optimize page load speed. We analyze the internal and external
factors.
Enable GZIP Compression
This is a good practice to give the user content in compressed form.
We've detected 246.28 Kb of content that could be compressed.
By compressing content you can achieve the size of ~ 61.57 Kb
(saving 184.71 Kb). This would accelerate the page loading speed and would positively
impact the bandwidth savings in Westdeutscher Rundfunk Koeln.
http://www.wdr.de/themen/homepages/homepage.jhtml. File size 62.62 Kb and you can save up to 46.96 Kb
http://www.wdr.de/themen/_config_/script/2006/global.js. File size 2.72 Kb and you can save up to 2.04 Kb
http://www.wdr.de/themen/_config_/script/2006/socialbookmark-1.2.js. File size 9.43 Kb and you can save up to 7.07 Kb
http://www.wdr.de/themen/_config_/script/2008/fastinit.js. File size 2.93 Kb and you can save up to 2.19 Kb
http://www.wdr.de/themen/_config_/css/2006/wrapper/homepage.css?ver=100623. File size 0.35 Kb and you can save up to 0.26 Kb
http://www.wdr.de/themen/_config_/css/basic.css. File size 0.11 Kb and you can save up to 0.08 Kb
http://www.wdr.de/themen/_config_/css/2006/module/tagcloud.css. File size 1.99 Kb and you can save up to 1.49 Kb
http://www.wdr.de/themen/_config_/css/2006/global.css?ver=100419. File size 1.86 Kb and you can save up to 1.4 Kb
http://www.wdr.de/themen/_config_/css/2006/farben/homepage.css?ver=100419. File size 10.11 Kb and you can save up to 7.58 Kb
http://www.wdr.de/themen/_config_/css/2010/wm2010/event_hp.css?ver=100622. File size 1.7 Kb and you can save up to 1.27 Kb
http://www.wdr.de/themen/_config_/css/pda/basic.css. File size 0.7 Kb and you can save up to 0.53 Kb
http://www.wdr.de/themen/_config_/css/2006/farben/misc.css?ver=100419. File size 3.5 Kb and you can save up to 2.63 Kb
http://www.wdr.de/themen/_config_/css/2006/global/ws_head.css. File size 2.89 Kb and you can save up to 2.17 Kb
http://www.wdr.de/themen/_config_/css/2006/misc.css. File size 1.41 Kb and you can save up to 1.06 Kb
http://www.wdr.de/themen/_config_/css/2006/global/ws_content.css. File size 1.41 Kb and you can save up to 1.06 Kb
http://www.wdr.de/themen/_config_/css/2006/global/ws_footer.css. File size 3.37 Kb and you can save up to 2.53 Kb
http://www.wdr.de/themen/_config_/css/2006/global/ws_navigation.css. File size 2.16 Kb and you can save up to 1.62 Kb
http://www.wdr.de/themen/_config_/css/2006/global/ws_images.css. File size 2.3 Kb and you can save up to 1.72 Kb
http://www.wdr.de/themen/_config_/css/global/ws_bu_cont.css. File size 1.47 Kb and you can save up to 1.1 Kb
http://www.wdr.de/themen/_config_/css/2006/global/ws_width.css. File size 1.22 Kb and you can save up to 0.92 Kb
http://www.wdr.de/themen/_config_/css/global/ws_teaser.css. File size 6.71 Kb and you can save up to 5.03 Kb
http://www.wdr.de/themen/_config_/css/global/ws_linklisten.css. File size 5.36 Kb and you can save up to 4.02 Kb
http://www.wdr.de/themen/_config_/css/2006/global/ws_geometrie.css. File size 15.98 Kb and you can save up to 11.99 Kb
http://www.wdr.de/themen/_config_/css/global/ws_impressum.css. File size 0.34 Kb and you can save up to 0.26 Kb
http://www.wdr.de/themen/_config_/css/2006/module/ws_versenden.css. File size 0.85 Kb and you can save up to 0.64 Kb
http://www.wdr.de/themen/_config_/css/global/ws_global_font.css. File size 5.9 Kb and you can save up to 4.43 Kb
http://www.wdr.de/themen/_config_/css/2006/module/ws_reiternavi.css. File size 1.3 Kb and you can save up to 0.97 Kb
http://www.wdr.de/themen/_config_/css/2006/module/ws_sitemap.css. File size 2.26 Kb and you can save up to 1.7 Kb
http://www.wdr.de/themen/_config_/css/2006/module/ws_voting.css. File size 1.7 Kb and you can save up to 1.27 Kb
http://www.wdr.de/themen/_config_/css/2006/global/ins_wdrde.css. File size 1.81 Kb and you can save up to 1.35 Kb
http://www.wdr.de/themen/_config_/css/2006/global/scbasic-1.1.css. File size 4.67 Kb and you can save up to 3.5 Kb
http://www.wdr.de/themen/_config_/css/2006/global/ws_rechte_spalte.css. File size 5.08 Kb and you can save up to 3.81 Kb
http://www.wdr.de/themen/_config_/css/2006/module/kommentare.css. File size 2.56 Kb and you can save up to 1.92 Kb
http://www.wdr.de/themen/_config_/css/2010/carousel/carousel-1.1.css. File size 2.65 Kb and you can save up to 1.99 Kb
http://www.wdr.de/themen/_config_/css/print/ws_head_print.css. File size 2.53 Kb and you can save up to 1.9 Kb
http://www.wdr.de/themen/_config_/css/2007/flashplayer/embedded_player.css. File size 19 Kb and you can save up to 14.25 Kb
http://www.wdr.de/themen/_config_/script/2006/more.js. File size 9.4 Kb and you can save up to 7.05 Kb
http://www.wdr.de/themen/_config_/script/2007/module/flash.js. File size 5.56 Kb and you can save up to 4.17 Kb
http://www.wdr.de/themen/_config_/script/2007/module/real.js. File size 3.98 Kb and you can save up to 2.99 Kb
http://www.wdr.de/themen/_config_/script/2004/global12.js. File size 20.22 Kb and you can save up to 15.17 Kb
http://www.wdr.de/themen/_config_/script/2007/module/overlay.js. File size 2.64 Kb and you can save up to 1.98 Kb
http://www.wdr.de/themen/_config_/script/2007/module/embedded_player.js. File size 8.35 Kb and you can save up to 6.26 Kb
http://www.wdr.de/themen/_config_/script/2007/module/wmp.js. File size 3.2 Kb and you can save up to 2.4 Kb
Keep Components under 25K
Users often visit web site using a mobile phone. Even the most modern and advanced gadgets
have some limitations. For example an iPhone browser do not cache page components bigger
than 25K. So you should strive to ensure that scripts, CSS-styles, etc.
are less than 25K.
http://www.wdr.de/themen/homepages/homepage.jhtml Content-Encoding: text/html; charset=ISO-8859-1. File size 62.62 Kb.
http://www.wdr.de/themen/panorama/wetter02/winter_2010_2011/taxi/_img/... Content-Encoding: image/jpeg. File size 88.42 Kb.
http://www.wdr.de/themen/gesundheit/1/dioxin_tierfutter/_img/dioxin_ei... Content-Encoding: image/jpeg. File size 25.07 Kb.
http://www.wdr.de/themen/politik/nrw05/neujahrsansprache_2011/_img/kra... Content-Encoding: image/jpeg. File size 26.16 Kb.
Avoid 301 & 302 Redirects
Redirect allows you to make website or page available under many URLs. Webmasters use redirects
when their sites change domain name, several websites are merged into one, document is moved too
a new location, etc.
Using a redirect delays content obtaining. Any delay negatively affects on the user experience.
We've detected that page has 1 redirects before page components start loading.
The following list contains some of these redirects:
http://wdr.ivwbox.de/cgi-bin/ivw/CP/;www.wdr.de/themen/homepages/homep... redirects to http://wdr.ivwbox.de/blank.gif
Try to reduce the number unnecessary redirects.
Alternate text for the images.
As you may already know, search engine that indexes your pages, do not
have eyes. And all content you are trying to display on your site is
just HTML & CSS code, images, Flash, etc for the robots. It is It's
extremely important to describe each of the objects more datailed using
ALT, TITLE and other tags.
Our robot has determined that the wdr.de page has
53
images, which has no tag ALT. Tag ALT is a text field, that specifies an
alternate text for an image. But not only. Search engines consider this
tag as a supplemental result for assessing the content of your page
entirely. Do not ignore it!
For example your page has this code:
| 95. |
|
<img src="http://wdr.ivwbox.de/cgi-bin/ivw/CP/;www.wdr.de/themen/homepages/homepage.jhtml?r=" height="1" width="1"> |
We recommend you use rich img code in that place:
| 95. |
|
<img src="http://wdr.ivwbox.de/cgi-bin/ivw/CP/;www.wdr.de/themen/homepages/homepage.jhtml?r=" height="1" width="1" alt="aktuelle nachrichten"> |
P.S. We used keyword for this image that seemed to us most important for your page.
But you can go ahead and give to each of 53 images an ALT text. This problem requires
responsible approach. No need to put the same text at alt tag of the all images.
Imagine that the pictures do not show and try to make sure that users understand what
is shown on the picture based on the alt tag
Specify image dimensions
The browser needs to know the actual dimensions of image (width and height) to quickly render webpage.
We have detected that the 132 images has no width and height.
If you do not specify the width and/or height, then in order to
correctly display the image browser needs to download it and only then
put on the screen. Otherwise, there is a chance browser will display
elements under the picture inappropriately as well as the possible
presence of "jumping" effect of the page content (until the page load
is finished).
We provide below example of how to define the image /themen/_config_/nav/2006/fbfbfb/druck.gif dimensions:
| 887. |
|
<img src="/themen/_config_/nav/2006/fbfbfb/druck.gif" width="IMAGE_WIDTH_HERE" height="IMAGE_HEIGHT_HERE"> |
Use the TITLE for A tag
As we have already mentioned, search engine bots can not see the site
like a people do it. They more focused on the descriptions of certain
page elements. That's why we strongly recommend use TITLE operator in
the "A" tag. This operator not only describes the page referenced by
the page more detailed, but also takes part in the page describing.
For example, you have the link on your website:
| 96. |
|
<a name="top" id="top"> |
We suggest you to remake it in this way:
| 96. |
|
<a name="top" id="top" title="service"> |
Of course, you can (and should) use more proper phrase instead of the "service" that describes the link
.
Number of links on the page
Try to avoid a large number of links on the page. Our robot
have found 252 links on this page. Google recommends
to keep the number of links fewer than 100.
More information about this topic you can find in
Google
Webmaster Guidelines
and in the post
"How many links per page?"
by Matt Cutts (head of Googleâs Webspam team)