Backlink Checker Tools : - 
Here are some useful tools which offers free and paid search options - 

http://www.semrush.com/
https://ahrefs.com/
https://app.buzzsumo.com/top-content
http://www.backlinkwatch.com/
https://moz.com/researchtools/ose/
http://www.linkdiagnosis.com/HTML Encrypt 



 http://www.iwebtool.com/html_encrypter
hide html code by htm encrypt

http://www.iwebtool.com/link_popularity
http://www.iwebtool.com/html_optimizer
http://www.iwebtool.com/