Limiting access to a link in Bitly
56434
Permanently delete a shortened link from bit.ly
125487
iOS Launching Settings -> Restrictions URL Scheme
21153
An item to break only SPECIFIED blocks?
7781
Hardware permissions in browsers
21615
Allow [tag:tag-name] syntax to link to any site
1663
Allow same user to add multiple links as possible duplicates
61559
Can I exclude some concrete urls from  inside ?
108573
Limit the creation of tags
135976
Restrict file access to append only
44023
How do I disallow a specific query string in robots.txt?
82992
Limit FTP access only to the /var/www with vsftpd
20116
Is there an easy way to limit user bandwidth usage?
118939
Extend comment "magic links" syntax to allow arbitrary link text
41114
How do I bypass restrictions on the length of the PATH variable
157712
Link to arbitrary part of text?
86835
Show link only to specific group
19044
How can I block traffic from this referrer?