The l stand for links and all these urls are just shortlinks that will direct you to another website. All these links are tested and safe.
All l.josweb.info links that look like:
l.josweb.info/sm are links to Steam store pages.
l.josweb.info/vd are links to my videos.
l.josweb.info/vi are links to videos I like to share.
l.josweb.info/dl are links to downloads.
l.josweb.info/mi are links to Minecraft downloads.
After these 2 small start letter there always will folow 3 other letters or in combination with numbers.