Secure (https) to non-secure sites (http): Since Google began emphasizing the importance of having a secure site, more websites are securely hosted, as indicated by the “https” in their URLs. Per the security protocol, however, any traffic going from a secure site to a non-secure site will not pass referral information. For this issue, you can correct by updating your site to be secure through a third-party SSL certificate.
Moreover: if you don’t have to, don’t change your URLs. Even if your URLs aren’t “pretty,” if you don’t feel as though they’re negatively impacting users and your business in general, don’t change them to be more keyword focused for “better SEO.” If you do have to change your URL structure, make sure to use the proper (301 permanent) type of redirect. This is a common mistake businesses make when they redesign their websites.
By relying so much on factors such as keyword density which were exclusively within a webmaster's control, early search engines suffered from abuse and ranking manipulation. To provide better results to their users, search engines had to adapt to ensure their results pages showed the most relevant search results, rather than unrelated pages stuffed with numerous keywords by unscrupulous webmasters. This meant moving away from heavy reliance on term density to a more holistic process for scoring semantic signals.[13] Since the success and popularity of a search engine is determined by its ability to produce the most relevant results to any given search, poor quality or irrelevant search results could lead users to find other search sources. Search engines responded by developing more complex ranking algorithms, taking into account additional factors that were more difficult for webmasters to manipulate. In 2005, an annual conference, AIRWeb, Adversarial Information Retrieval on the Web was created to bring together practitioners and researchers concerned with search engine optimization and related topics.[14]
Not all web traffic is welcomed. Some companies offer advertising schemes that, in return for increased web traffic (visitors), pay for screen space on the site. There is also "fake traffic", which is bot traffic generated by a third party. This type of traffic can damage a website's reputation, its visibility on Google, and overall domain authority.[citation needed]

Good point,The thing with this client is they wanted to mitigate the risk of removing a large number of links so high quality link building was moved in early before keyword research. So it is on a case by case basis, but defiantly a good point for most new clients I work with who do not have pre-existing issues you want to do Keyword Research very early in the process. 
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