404. That’s an error.

The requested URL /bookmarks/mark?op=add&bkmk=http%3A%2F%2Fwww.simplesoft.it%2Fscript-php-backlink-checker.html%3FPHPSESSID%3D521ae945fd0090c5cf1df2ea72c7f239&title=Uno+script+Backlink+Checker+in+PHP was not found on this server. That’s all we know.