Key:website

+/- website Description Specifying the link to the official website for a feature. Group Annotation Element help Useful combination name=* Implies Used combinations in World Australia/Oceania Europe (list) Asia (list) Central America (list) South America (list) Africa (list)

The website=* tag can be used to provide a link to the official website for the related features, be it a building, park railway or anything else. A link to an relevant but unofficial alternative or additional resource can be created using url=*. A link to Wikipedia should use wikipedia=* (do however note the different format for wikipedia links which are not full URLs.

For small format websites (designed for smaller displays, reduced bandwidth, or mobile touchscreens) use website:mobile=*.

Things to avoid

For preference use a simple URL; use 'http://www.example.com/' in preference to 'http://www.example.com/department/' or 'http://www.example.com/department/index.shtml?foo=fum'.

Using links

Where no transfer scheme is given, assume http://; using this system www.openstreetmap.org should be interpreted as http://www.openstreetmap.org.

See also

• Proposed features/External links - different tagging ideas for the same or similar
• url=* - A more general tag. Any URL which may be the official website or may be something else (e.g. wikipedia article)
• Key:contact - The contact:* namespace with contact:website=*

• OpenLinkMap [1] a slippy map, making this tag's data available as clickable POIs
• Keepright [2] where as of the year 2011 a project is underway to validate the content of website tags, ensuring they still match the osm object.