Links that are entered here :

<a href="http://www.imageoptimizer.net/Pages/Home.aspx" title="http://www.imageoptimizer.net/Pages/Home.aspx" >http://www.imageoptimizer.net/Pages/Home.aspx</a>

Namecheap (using redactor toolbar)

harrods@test.com

https://www.google.co.in/?gfe_rd=cr&ei=6yE7VaDOKMjV8gf_sYDwBw

google.com

http://www.imageoptimizer.net/Pages/Home.aspx

http://www.imageoptimizer.net/Pages/Home.aspx

http://nileshmahajan.com/nileshb/wa_social/spaces/classroom-test-8383/this-is-first-test-discussion-from-classroom

my.wealthyaffiliate.com (simply writing text)