I want to bring apologies for cleaning the database, too much has changed the algorithm of the service. I hope that this time there will be a lot of feedback and suggestions.
I want to thank
vibornoff for a link to an example with a regexp expression, now the validator has become smarter . User leoneed , for the fff.to service and the plugin I used for the example. MindiveR , for a topic about the review of services short links. dust for an example bookmarklet. kns for the idea of the decoder . And also all those who find errors in the service. ')