http://www.tips2secure.comI am a professional blogger since 2010 and write so many blogs and worked as author for some reputed blogs. So according to my experience SEO is the most important thing to be done in blogs by bloggers. When i was new in this field of blogging I faced many problems including High quality contents, less backlinks, Low DA, PA and SEO. But when i search for all that problems, i found easy solutions for all problems excepting Search engine optimization. Because for SEO tools all the webmasters and owners charging a high fee for their services, which may not be affordable for new bloggers at their starting.
But in this today I am going to list some SEO tools provider, who provides their services for free. By using these services you can do following things for SEO of your site/blogs:

To check DA (Domain authority), PA (Page authority).
To check Link roots.... read full here
http://www.tips2secure.com/2015/07/-search-engine-optimization-tools-free.html