SymRe stores the full URL on-chain and creates a short URL that can be used to browse the original longer version.

e.g. https://static.bitcoinfiles.org/49bc12159c743fb2bdbbc49a5c75f3130a8fbbe9d149bcbdf15aa188f4463024 becomes https://sym.re/82Fjkw .

 

SymRe can be used for legacy www addresses but also to shorten the new bit:// address format in Bottle.