SEO: How to improve the PR value of the site

Google is by far the most popular search engine in the world, both for ordinary web surfers and for webmasters. It handles up to 150 million search requests a day, accounting for almost 1/3 of all global search volumes. Web surfers have a passion for Google because of the fast search speed and high hit-rate search results provided by Google. These are based on Google's complex text matching algorithm and its search program using PageRank as the system (Web-level technology). Here we will introduce Google's PageRank to the system.
Google is popular with webmasters and internet media services companies because it does not use only keyword or proxy search techniques, but rather builds itself on advanced web-level technology. Other search engines provide searchers with a rough search result from a variety of sources, while Google gives its searchers a highly accurate search result that it produces. That's why webmasters are doing everything they can to improve their site's ranking in Google.
Another reason for Google's popularity is the speed of its Web site indexing. Submit your site to Google until it is included in Google, usually only two weeks. If your site has been included in Google, then usually Google will once a month to traverse and update (re-indexing) your site information. But for those sites with higher PR values (Pagerank), Google's indexing cycle will be shorter.
Google's index/re indexing cycle is shorter than most search engines. This allows webmasters to edit the page properties of the site, such as the title of the page, the first few lines of text content, the headline, the keyword distribution, and of course, the number of external links. They can then quickly find out if the changes made to the Web page are successful.
　

Just because Google is so popular, you need to know how Google's search engine works. If you don't know how it determines your rankings, those that are only slightly familiar with Google's ranking algorithms will be ahead of your ranking. Now let's take a look at Google's ranking algorithms.
Google's ranking algorithm uses two parts, and the first part is its text-content matching system. Google uses the system to discover Web pages related to search terms typed by searchers, and the second, the most important part of the ranking algorithm, is Google's patented web-level technology (Pagerank).
Let me first explain how to make a Web site relevant, that is, the algorithm for matching parts of the text content:
When searching for keywords in a Web site, Google gives a higher weight to the keywords that appear in its title tag (meta title). So you should make sure that the title tag of your site contains the most important keywords, that is, around your most important keywords to determine the content of the page title. However, the title of the page should not be too long, generally preferably between 35 to 40 characters.
It is well known that Google does not use META tags (meta tags) such as keywords or description tags. This is because the text used in these meta tags is not visible to the actual visitor. And Google believes the META tags will be used by some webmasters to fraudulently place popular keywords that have nothing to do with their site, and thereby increase their site's ranking of irrelevant keywords, thus gaining more visitors by improper means.