There are many tools available in SEO Ahref, Semrush, google webmaster, google analytiocs tool are the best tool.
Best techniques in off page seo are-
.social bookmarking
.Forum posting
.QnA
.Blog commenting
.Web2.0
.Article submission
.Blogging
SEO tools are: Google Webmaster tool, Google Disavow tool, Google Analytics, Backlink watch, small SEO tools, Copyscape etc.
SEO Techniques are: On-Page and Off-Page SEO.
There are many tools available in SEO Ahref, Semrush, google webmaster, google analytics tool are the best tool.
Best techniques in off page seo are-
1.social bookmarking
2.Forum posting
3.QnA
4.Blog commenting
5.Web2.0
6.Article submission
7.Blogging
7.Press release
8. PDF Submission