Web users often want to print the content of a page. Neat printing of the content (e.g. without having the borders cut off) can be achieved by implementing a print function and also by including stylesheets which have been optimised for printing.
Further information:
http://www.thestyleworks.de/tut-art/layout_print.shtml
The tested website does not contain specific technical implementations available on all web pages to allow content of the website to be printed, which usually leads to mistakes and imperfect printing results.
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A potential warning has been identified.
"Description" is used to summarise the content of a HTML-page as short and incisive as possible. The content of this meta information is not shown to the user in the internet browser, but search engines do use them to a certain extent to evaluate the relevance of a site for the results page.
The description summarises the content in one sentence. The summaries are normally shown on the results page of search engines and contribute a great deal to the choice of web users.
Further information:
http://de.selfhtml.org/html/kopfdaten/meta.htm#beschreibung
No useful description was found, in particular none for the homepage.
A table based layout carries many disadvantages if compared to a purely CSS layout. A CSS layout improves both accessibility and performance.
Further information:
A detailed article by Douglas Bowman can be found onhttp://www.stopdesign.com/articles/throwing_tables/.
Hint for webmasters: Be sure that when embedding third party content, e.g. with iFrame, there are no layout tables included.
The tested website uses table layout.
RSS is a technique that allows users to subscribe to contents of a website such as news, reports, blogs, etc. Atom is a format competing with RSS.
Newly published content is regularly and automatically downloaded on the subscriber's computer or other devices thanks to RSS or Atom. This allows the subscriber to keep up to date.
Functions based on RSS are increasingly integrated in existing applications, like e-mail programmes or web browsers.
Further information:
http://www.stefanbucher.net/tutorial/rss/
Acronyms:
RSS: Really Simple Syndication, also called Rich Site Summary or RDF Site Summary
No contents in RSS or Atom format were found.
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A potential warning has been identified.
An image map is a graphics file with clickable areas to re-direct users. This means that single areas of the graphics file can be defined in such way that they act like a link in a text. By clicking on the specific area, the users are taken to an external URL or to pre-defined are of the website.
Image maps contain problems, especially when they contain barriers. A solution for barrier-free image maps can be found on http://expertinnen-web.de/2006-115/barrierefreie-image-maps/
Further information: http://de.selfhtml.org/html/grafiken/verweis_sensitive.htm
The tested website contains an image map.
DNS assigns an IP address to the names of servers on the internet. It is advisable, to increase the availability of a website, to use several name servers. RFC2182, section 5, suggests to use a minimum of 3 and a maximum of 7 name servers.Source and further information:
http://rfc.net/rfc2182.html, and http://www.rfc-editor.org/.
Acronyms:
DNS: Domain Name System
IP: Internet Protocol
The tested website contains less than three name servers.
Name servers should be placed in different physical locations.
"It is recommended that three servers be provided for most
organisation level zones, with at least one which must be well
removed from the others. For zones where even higher reliability is
required, four, or even five, servers may be desirable. Two, or
occasionally three of five, would be at the local site, with the
others not geographically or topologically close to the site, or each
other."
Source and further information regarding the amount and location of a second name server can be found in RFC2182 3.1.
http://www.faqs.org/rfcs/rfc2182.html
The name servers of the tested website are probably in the same physical location.
Missing height and width size of images is a typical error in HTML, which impacts the performance of the website. A precise definition of height and width allows a quicker download of the website, as the browser recognises the space needed for the image and can leave it empty.
Source and further information: http://de.selfhtml.org/html/grafiken/einbinden.htm#breite_hoehe
At least one image with missing information about height and width was found.
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A potential warning has been identified.