When Site A links to your web page, Google sees this as Site A endorsing, or casting a vote for, your page. Google takes into consideration all of these link votes (i.e., the website’s link profile) to draw conclusions about the relevance and significance of individual webpages and your website as a whole. This is the basic concept behind PageRank.
Audiences are groups of users segmented in a variety of ways. Most often audiences are used in remarketing. Audiences can be created based upon specific pageviews, time spent on site, pages per visit, and more. Similar to keywords, audiences are bid upon based on relevance. For example, advertisers may bid more to remarket to shopping cart abandoners vs. homepage viewers.
Remarketing: A platform like Google AdWords often allows you the ability to create audiences of users who have already visited your website. You can create and target these audiences with tailored ads, including image and video ads. If you want to get users who have visited but haven’t bought from you to come back and make a purchase, remarketing can be a cost-effective tactic to increase bottom line. If you’re not running remarketing as part of your digital marketing and PPC, chances are you’re leaving money on the table.
For consumers searching for goods, services, and information online, the first search engine results page (SERP) on sites like Google, Yahoo, and Bing is often as far as they will scroll to find the most accurate and relevant results for their search query. For businesses, securing a top place on this results page for branded and unbranded searches is extremely valuable and can help drive additional foot traffic to their physical locations.
For the examples, we are going to ignore that fact, mainly because other ‘Pagerank Explained’ type documents ignore it in the calculations, and it might be confusing when comparing documents. The calculator operates in two modes:- Simple and Real. In Simple mode, the calculations assume that all pages are in the Google index, whether or not any other pages link to them. In Real mode the calculations disregard unlinked-to pages. These examples show the results as calculated in Simple mode. pagerank, page rank
SEO may generate an adequate return on investment. However, search engines are not paid for organic search traffic, their algorithms change, and there are no guarantees of continued referrals. Due to this lack of guarantees and certainty, a business that relies heavily on search engine traffic can suffer major losses if the search engines stop sending visitors.[60] Search engines can change their algorithms, impacting a website's placement, possibly resulting in a serious loss of traffic. According to Google's CEO, Eric Schmidt, in 2010, Google made over 500 algorithm changes – almost 1.5 per day.[61] It is considered wise business practice for website operators to liberate themselves from dependence on search engine traffic.[62] In addition to accessibility in terms of web crawlers (addressed above), user web accessibility has become increasingly important for SEO.

As an Internet marketing strategy, SEO considers how search engines work, the computer programmed algorithms which dictate search engine behavior, what people search for, the actual search terms or keywords typed into search engines, and which search engines are preferred by their targeted audience. Optimizing a website may involve editing its content, adding content, doing HTML, and associated coding to both increase its relevance to specific keywords and to remove barriers to the indexing activities of search engines. Promoting a site to increase the number of backlinks, or inbound links, is another SEO tactic. By May 2015, mobile search had surpassed desktop search.[3] In 2015, it was reported that Google is developing and promoting mobile search as a key feature within future products. In response, many brands are beginning to take a different approach to their Internet marketing strategies.[4]