There are a few key pieces of information that we want to look at with Organic Traffic. The first piece of information that helps us frame the website performance is the total percentage of traffic that is organic traffic. These numbers will vary greatly based on your AdWords spend, how many email campaigns you send and many other factors. To view this figure, we want to go to the Acquisition section of your Analytics dashboard and then proceed to Channels.
Description meta tags are important because Google might use them as snippets for your pages. Note that we say "might" because Google may choose to use a relevant section of your page's visible text if it does a good job of matching up with a user's query. Adding description meta tags to each of your pages is always a good practice in case Google cannot find a good selection of text to use in the snippet. The Webmaster Central Blog has informative posts on improving snippets with better description meta tags18 and better snippets for your users19. We also have a handy Help Center article on how to create good titles and snippets20.
Second and last, keywords. I use SEO Ultimate on WordPress and I sometimes doubt about what words and sentences to put in the “Tags” box. Does it need to be very specific or broad words are good to have too ? Like if I’m writing about Porsche beating the previous record on the Nurburgring with the new GT2 RS, can I put “Nurburgring” and “Porsche GT2 RS” as tags or is better to just keep “Porsche record nurburgring” and specific tags like this one ?
Thanks for the comment Slava good too see your team is on top of things and happy you liked the post. The website in the case listed was a client who has taken on an agency who was doing lower quality SEO work which was affecting the site such as the huge link network and a strategy which only revolved around mainly head terms. We saw no long tail integration from the old agency's strategy, so we were able to yield great results to begin with. The clients site has 100's of high quality articles which we were able to re optimize and update as noted. Further to this they had a large index of high quality pages to work from. Sure enough the points listed above were key elements to a far wider strategy which could be 100's of points. I just wanted to include some of the biggest wins and easy to implement points.  
Regarding RankBain, my own assumption is that user signals are part of the training data RankBrain gets (even though Paul Haahr does not confirm that in the talk at SMX or the discussion afterwards). If that is true, then RankBrain will see your high CTR and maybe TOS, might try to figure out what pattern causes them and MIGHT try to change it’s own algorithm in a way that ranks results LIKE YOURS higher.
Optimization techniques are highly tuned to the dominant search engines in the target market. The search engines' market shares vary from market to market, as does competition. In 2003, Danny Sullivan stated that Google represented about 75% of all searches.[63] In markets outside the United States, Google's share is often larger, and Google remains the dominant search engine worldwide as of 2007.[64] As of 2006, Google had an 85–90% market share in Germany.[65] While there were hundreds of SEO firms in the US at that time, there were only about five in Germany.[65] As of June 2008, the marketshare of Google in the UK was close to 90% according to Hitwise.[66] That market share is achieved in a number of countries.
Basically, what I’m talking about here is finding websites that have mentioned your brand name but they haven’t actually linked to you. For example, someone may have mentioned my name in an article they wrote (“Matthew Barby did this…”) but they didn’t link to matthewbarby.com. By checking for websites like this you can find quick opportunities to get them to add a link.

Search engines are smart, but they still need help. The major engines are always working to improve their technology to crawl the web more deeply and return better results to users. However, there is a limit to how search engines can operate. Whereas the right SEO can net you thousands of visitors and increased attention, the wrong moves can hide or bury your site deep in the search results where visibility is minimal.
Google™ promotes authority pages to the top of its rankings so it's your job to create pages that become authority pages. This involves writing content people find useful because useful content is shared in blogs, twitter feeds etc., and over time Google™ picks up on these authority signals. This virtuous circle creates strong and sustainable Google™ rankings.

I fall into the group of people skipping Google altogether and going straight to YouTube like you mentioned. Not only is video more engaging than reading text, I love the feature to speed up the video up to 2X the speed so that I can get through more info faster. In fact, I pass up on some videos on websites if there isn’t the ability to speed it up.
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.

Some search engines have also reached out to the SEO industry, and are frequent sponsors and guests at SEO conferences, webchats, and seminars. Major search engines provide information and guidelines to help with website optimization.[18][19] Google has a Sitemaps program to help webmasters learn if Google is having any problems indexing their website and also provides data on Google traffic to the website.[20] Bing Webmaster Tools provides a way for webmasters to submit a sitemap and web feeds, allows users to determine the "crawl rate", and track the web pages index status.

Being a good internet Samaritan is great and all, but how does this help you build links? Let me explain: the kind of broken links you’re looking for are found on sites relevant to your business, industry, or niche. By finding these sites and informing them of these broken links, you strike up a conversation with the site owner and give yourself the opportunity to suggest a link to your epic piece of content be added to their site. How to Get More Organic Traffic (FAST)
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