Short URL services offer the ability to create short aliases (alternate links") for such a long URLs. The meaning and purpose of a short URL service a URL can very long in a deep link are. Such links are called deep links, which refer to the home page of a site but directly on a specific document. The resulting links are not often so long that they don't even fully viewable in a browser's address bar. Short URL services offer the ability to create short aliases (alternate links") for such a long URLs. This short link then refers to the Internet page of the short-URL service and will go from there to the actual destination of the link.

The most famous short-URL service is TinyURL (tinyurl.com), but now there are many more service providers. For example, it is possible the link on an arbitrarily selected document of the Federal Government, the better viable link to convert ..pdf/aa-nachhaltigkeitsbericht gn.cx/nhb. This is very comfortable, has but what domain it refers to the drawback of that to look at the short link anymore. Here dangers, phishing is a keyword to do so". The user can have a short link either run directly on a phishing page, or the mapping table in the short links are associated with the original links, can be hacked with the provider (www.pcwelt.de/ ../kurz_url_dienst_leitete_millionen_urls_falsch_um/). To increase the security, short links can be created in a Variant, provided a preview of the linked resource.