Hello friends,

How to find effective backlink ?

You can search only high DA link for submission and before submission check "Dofollow" or "nofollow" link.

Some of the best SEO off page techniques for getting quality backlinks:

•   Social bookmarking
•   Image sharing
•   PPT/pdf  submission
•   Forum posting
•   Blog commenting
•   Video submission
•   Article
•   Micro Blogging
•   Guest Blogging etc.