Hugh Winkler holding forth on computing and the Web

Saturday, March 12, 2005

Link resolvers

PURL -- persistent URL -- has been around a while, but I only just discovered I could make one myself: That URL will forever redirect to, they think. If I move the blog, I have to update the pointer.

(TinyURL is another useful service for link resolution. Its purpose in life is to shorten long URLS to a manageable length you can actually type; if you move your resource you can't update the tiny URL to point to the new location. gets you here too.)

Why don't we embed a unique identifier into each web page or searchable resource? As I have pointed out (also here), a search engine will always turn up the moved resource, eventually. Couldn't we use META tags to do that? Embed this in your file:

<META scheme="UUID" name="identifier" content="cce89bf0-92e6-11d9-9669-0800200c9a66">

Then a persistent link to the resource might be

No comments: