Briefly about each of them.
Title is a page header that is important for search engines. This tag should accurately and clearly reflect the content of the page. We see this tag at the top of the page that is open in the browser and it is displayed in the search results dropdown in the Yandex and Google systems.
Description is a description of the page, which should contain a brief description of the content of the page. Experts say that this tag is not important because search engines do not take it into account when ranking a site, but this is not quite the case. Why we look below.
Keywords are keyword pages. The very least significant tag that has long been used by search engines when ranking the site. It is believed that this tag is not needed at all and it is not worth it.
Let's examine more details of these fields and how to fill them up correctly.
The Title field, the size of which should be on average 80-100 characters. In this field you should use the key for which this page will be displayed. This tag can be seen in the results of the search engine submission. It will look like this:
For an example, if we have an article about how to properly fill the meta tags title, description, keywords. That field title should be «How to properly fill the meta tags title, description, keywords.»
Keywords in this field should be entered in the key related to this page. For example, if we need to write keywords for a page on which there is a «K-101 bed», then the key will be "buy a bed K-101, a bed K-101 price, a bed К-101 lions, a bed К-101 on credit , bed K-101 inexpensive, double bed
Description This field is considered by many optimizers to be irrelevant and in fact this is an error. Although the search engines give him value in ranking (sorting in the search engine) and after reading it, the user decides whether to come to you on the site or not. As shown in the figure above, the value of this field is displayed in the list of search output under the link to the page. The recommended length of this field is 150-200 characters no longer makes sense because more than 200 characters are simply not displayed. An example of the correct filling of such a field will take for example the product «Bed K-101». Content of the field should be: "Need a good and not expensive bed? Then this model will suit you perfectly. Come here to find what you need. The best deals on beds and bedroom furniture. "It is important that this field has a call to action that will increase the visibility.
Filling the meta tag on your site is very important for a search engine, because without them, there is practically no chance of success in search engines. Often writing the necessary data goals is called internal SEO optimization of the site.