We still seem to have PageRank as an important ranking factor from Google, but have been told that Google is using a machine learning approach called RankBrain. The focus of this RankBrain approach is to help the search engine understand the meaning of queries better, and provide answers that (still) focus upon meeting the situational and informational needs of searchers.
We help clients increase their organic search traffic by using the latest best practices and most ethical and fully-integrated search engine optimization (SEO) techniques. Since 1999, we've partnered with many brands and executed campaigns for over 1,000 websites, helping them dominate in even highly competitive industries, via capturing placements that maximize impressions and traffic.
To avoid undesirable content in the search indexes, webmasters can instruct spiders not to crawl certain files or directories through the standard robots.txt file in the root directory of the domain. Additionally, a page can be explicitly excluded from a search engine's database by using a meta tag specific to robots (usually ). When a search engine visits a site, the robots.txt located in the root directory is the first file crawled. The robots.txt file is then parsed and will instruct the robot as to which pages are not to be crawled. As a search engine crawler may keep a cached copy of this file, it may on occasion crawl pages a webmaster does not wish crawled. Pages typically prevented from being crawled include login specific pages such as shopping carts and user-specific content such as search results from internal searches. In March 2007, Google warned webmasters that they should prevent indexing of internal search results because those pages are considered search spam.[45]
SEO techniques can be classified into two broad categories: techniques that search engine companies recommend as part of good design ("white hat"), and those techniques of which search engines do not approve ("black hat"). The search engines attempt to minimize the effect of the latter, among them spamdexing. Industry commentators have classified these methods, and the practitioners who employ them, as either white hat SEO, or black hat SEO.[48] White hats tend to produce results that last a long time, whereas black hats anticipate that their sites may eventually be banned either temporarily or permanently once the search engines discover what they are doing.[49]

When they’re considering buying something and want to research their options, there’s a variety of methods used. Some of the top tactics are a search engine, visiting a company or product’s official website, looking at review websites, and watching videos. Video could easily be incorporated into every one of those places, giving your brand a better chance of convincing the consumer.
YouTube research shows that users spend a significant amount of time watching review videos that share people’s personal and unique experiences with a company or brand. Studies show these types of videos are more “trustworthy” and benefi­cial when they feel personable and honest, as opposed to professional and polished. This can help to build trust with your target audience and boost engagement through likes, shares, and comments.