For our client: We were lucky enough to remove most from the prior agency outreach, we also went directly to many webmasters in which we wanted to remove links. We did not use the Disavow tool as it was not around when we completed this link cleanup, but we all know it has been said that if you are going to use the Disavow Tool to use it with caution.
Blog comments have a number of sources of value, and traffic is just one of them. By monitoring your competitors and your betters, you get a keen sense of what the industry is doing and where trends are going. You leave valuable comments and people take notice, including industry influencers and possibly the owners of these top-tier sites. You create a gateway back to your site, and even though the links are nofollowed, they’re still links for people to click. You also build a personal reputation as a commenter around your industry, raising sentiment and value.
Love the five different area of investigation that you went over, great way to analyze and diagnosis the issue. I would also definitely agree doing a rankings comparison between the two time frames, and not only check what your Google ranking is, but also track the search volume for your keywords to see if it has fluctuated or gone down. Google Trends is a great tool for this as well, as one of your keywords that your ranking for may have just lost popularity online.
The term “organic traffic” is used for referring to the visitors that land on your website as a result of unpaid (“organic”) search results. Organic traffic is the opposite of paid traffic, which defines the visits generated by paid ads. Visitors who are considered organic find your website after using a search engine like Google or Bing, so they are not “referred” by any other website.