what is SEO?

SEO-Search engine optimization).
SEO work means analyzing the search engine algorithms and algorithms and using some simple or complex tactics to improve your site's ranking on certain keywords.
Short and easy to understand right.
How Do Search Engines Work?

Before researching on SEO, we all have to know how the search engines work to collect content on websites, from which your SEO study period will be faster and apply correctly. than.
Search engines will have "robots" (or bot, spider, etc.) looking for the job of scouring websites they know and then gather data. You have to remember that the search bot is not like a real person although the search bot is now quite intelligent compared to the previous few years but in truth it is still a machine and working on a program. Self-certain.
These sequences include crawling through the HTML content of the website in order from top to bottom to see what content the website has. Search bots can continue to crawl from one page to another through links (which may be called Link schemes). That means that if your website is tightly linked to each other, the search bot will crawl more pages because they are present on the website in a certain time. In contrast, because bots are not real people, they only read the content through normal text, can not completely view flash or javascript or the directory is secure. This means that if the search bot can not crawl the pages, those pages will not be able to appear on its search page (Google, Yahoo, Bing, etc.).
After the search bot crawls the necessary data, its next step is to index the pages of the website. Indexed pages will be stored in a huge repository on the search engine, after which the pages stored there will be retrieved for display on search results after analysis has been performed. And apply some algorithms. Search bots will rely on certain factors to see if a link should be included on the search engine results page (SERP). Therefore, the work of SEO people will optimize the links to achieve higher ranking in the search results (appear in the first 10 results).
Each time there is a search request from a user, the search engine will start processing those queries. It means comparing search queries with indexed pages in its database. When any search query is executed, the fact is that there are millions or billions of pages containing relevant content, then the search engine will start applying some algorithms to calculate the value. Content that matches most search queries can be displayed.
Each search engine has different algorithms to calculate the appropriate content. Each algorithm has different roles for analyzing relevant content based on keyword density, links or metatags in HTML content. That's why search engines like Google, Yahoo and Bing have different results, although we search only with a single keyword. In addition, there is an important fact that you need to know that its algorithms are constantly changing so if you want your page to always be displayed in the first pages, then it should be applied. Some tips to change your website to adapt to new algorithms. This is one of the key factors for SEO professionals to compete with customers.
Benefits of SEO
Cost savings
Target a specific user
Get a great deal of traffic
Long-term benefits
What is Black Hat SEO and Black Hat SEO?

What is SEO White Hat?
Listen to the name that has seen the "pure" and transparent already. White hat SEO means those who optimize links so that they rank high on search results in a legitimate and healthy way, both ethical and technical. The white hat SEO method not only increases the ranking of links legally, but it can also maintain their rankings in a long way. Just like business, if you do everything transparently and legally, it will take a long time to take care of your SEO process, but in return you will be more secure without having to worry about the punishment of the Search engines for fraud issues. In short, white hat SEO tactics and tactics mean compliance with the rules and guidelines of the search engine. These methods merely present and optimize website content for search engine friendly crawls during indexing and crawling. At the same time the content is also clearly optimized to convey valuable information to the user.
But ... if your website has poor quality content. Then the white hat SEO methods hardly work, simply because the content is not valuable to the user. And if he is poor and still wants to climb on someone else's head, then he must commit fraud, which is called black hat SEO.
What is black hat SEO?
If you have read the definition of white hat SEO then you can also guess what black hat SEO is. Black hat SEO means using fraudulent methods, tricks to break the regulatory barriers of the search engines to put yourself on the front page of the search results. Usually the black hat SEO phase will put your website on the top 10 in the search page much faster (even just a few days for an important keyword) compared to white hat SEO. But soon, websites that use this fraudulent SEO method will be punished by the search engines, and that is the price they pay. Web sites may be ranked down, tightly controlled in the process of SEO, or worse, the domain name of that website forever can not appear on the search results.