Page modified: Saturday, June 24, 2006 10:37:29
By a short URL service one understands the forwarding of a web page visitor on a web page with (tendentious) long URL, after this entered (tendentious) short URL before. The short URL serves thus as better noticing and fast those which can be entered alias the long URL.
Service
The offer consists of two parts:
- On the homepage of the offerer one can provide a short in a form for Web under indication of the desired goal URL alias.
- Each call of the alias URL is passed on automatically afterwards on the goal URL indicated before.
Technology
The short URL contains a character sequence, which serves the operator of the short URL service as clear distinguishing feature (above: "o5lao "). On the basis its long URL in the data base of the operator can be determined. The Web server sends then to the Client a HTTP status code in the header and communicates to the Browser the new address. In the example from above would be:
HTTP/1.0 301 Moved Permanently. Connection: keep alive. X-Powered-By: PHP/5.1.4. Location: . Content type: text/HTML. Content length: 0. DATE: , May sows 27 2006 17:01: 45 GMT. Server: TinyURL/1.5"
.
Example
Original URL: http://de.wikipedia.org/wiki/Portal:Wissenschaft
URL alias: http://tinyurl.com/o5lao
Criticism
- URL Aliase hide the actual link goal before the user. "More genuinly" left e.g. contains various information, like the names of the server, the listing or the file, with which its can be judged better. With URL Aliasen the visitor is passed on if necessary without his agreement on a side, which he does not want perhaps at all to visit or may. This circumstance can be abused around people inadvertently on sides to lure, those over safety gaps in the Webbrowser the computer of the user to compromise or around a CROSS Site Request Forgery introduce.
- URL Aliase are made available usually free of charge. If an offerer should decide however, to commercialize or an offerer its enterprise all URL Aliase of this offerer with an impact stops, becomes functionless his service. Since the lastingness of the information is thus not protected, to do recommended in particular in Web forums or in the Usenet without the use from alias URLs to, since the contributions written there are partly year-tenth-long archived.
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