SEMRush is competitor research keyword tool with a regularly updated database of over 88 million of the most expensive keywords used to drive traffic to websites through Google Adwords and Google’s organic search results. You can use SEMRush to identify organic search and AdWords opportunities, as well as seeing which keywords are driving the most traffic to your competitors.
ScrapeBox is the Ultimate link harvester, mass comment poster, complete with PR storm mode and bulk PageRank checker, plus a ton of addons and plugins.
It' simply a tool to harvest URLs, scrape data from Internet like emails, URLs, comments, and post comments on blogs and even more, it's known as a SEO tool, to improve website rank by posting comments on blogs, forums, and much more.
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