where to download seo optimization tool?

[Jake]

Most of the effective quality tools, like the only moderately evil SEnuke are too expensive for an individual operator, better to pay an SEO who already knows how to use the tools to generate some backlinks.
Mistakenly getting 1000 spam comment links overnight is the sort of thing that can do more harm than good. Links are expected to appear at a steady rate. You can assume that one reason Google collects traffic data, some from 3rd party services is to validate a site's linking pattern, since a webmaster getting his own links violates their guidelines, if you are getting legit backlinks from people who have visited your site you might get something less than 1 backlink for every ten visitors, Red flags would be flown if they find you have 10 backlinks for every visitors.

You can find backlinking services on webmaster and internet marketing forums sometimes a small supplier of private blog network links may be safer than the heavily advertised ones that seem to all get de-index in time. There are some worthwhile gigs offered on Fiverr.com including submissions to multiple blog networks.

Some are so paranoid about getting the "Unnatural link pattern" warnings being sent by Google in higher frequency, that they make their backlinks undo-able, like linking to pages that 301 redirect to your content and never sending junky links to the home page which you can't delete should things get ugly.

One site helpful in find relevant candidates for manual backlinking is: http://dropmylink.com/
Again it may be wisest to manually just a few links a week to a new site with no significant traffic.