What are HTML code and the factors for success in search engines?
HTML is the main code used to create web pages. Search engines can receive ranking signals from certain HTML elements. Some of the most important HTML elements for achieving SEO success are listed below.

Ht: HTML Title Tag

Imagine you’ve written 100 different books, but you’ve given all of them the same title. How would anyone know that they are about different topics?

If you’ve written 100 different books and they have different titles, but the titles aren’t very descriptive – perhaps just one or two words – how could someone tell what the books are about just by looking at the title?

HTML titles are one of the most important HTML signals that search engines use to understand what a page is about. Poor page titles are like bad book titles in the example above. In fact, if your HTML titles are not good or descriptive, Google will change them.

Therefore, based on the keywords you have researched earlier, think about what you want your page to rank for. Then, create unique and descriptive titles for each of your pages.

Hd: Meta Description Tag

One of the oldest supported HTML elements, the meta description tag allows you to suggest how you want your pages to be described in search engine results. If the HTML title is equivalent to a book title, the meta description is like a brief description that clarifies what you will find in the book.

SEO specialists argue that the meta description is not a "ranking factor" and does not help improve the positioning of your pages. On the contrary, it is a "visibility factor," something that helps you look better when you appear in search results due to other factors.

Technically, this is true. And one of the reasons why we decided to call these elements "success factors" instead of "ranking factors" is exactly this.

Using a meta description that contains searched (bolded) keywords can attract user attention. A well-written meta description can help "sell" that page to the user. Both factors can result in more clicks to your site. Therefore, it makes sense to consider the meta description as a success factor.

However, keep in mind that having a meta description does not guarantee that it will be used by search engines. Search engines may generate different descriptions that they consider most relevant to the given query. But having one increases the chances of it being shown, and creating it is easy.

Hs: Structured Data

If you could tell search engines exactly what is contained in the content of your page in their own "language," websites could use specific markup (code) to help search engines understand the details of the content and structure of the pages.

The result of using structured data is typically what Google refers to as a "rich snippet" — a search result that contains additional elements (such as icons and sounds) that make it more attractive and useful to users. One of the most common examples of a rich snippet is reviews/ratings, which often include eye-catching stars.

Although using structured data is not a direct ranking factor, it is clearly a success factor. When everything else is equal, the result with a rich snippet is more likely to receive more clicks than the one without.

Hh: Header Tags

Do you see the title at the top of this page? Behind the scenes, HTML code is used to make it a heading, in this case with an H1 tag.

Did you notice the subheadings on the page? They also use header tags. Each of them is at the next level, using H2 tags.

Header tags are the official way to define the important parts of a web page. Search engines have long used them as an indicator of what the content of a page is about. If the words you are targeting appear in the header tags, your chances of appearing in searches for those words are slightly higher.

Naturally, this information has led some people to overdo it. They put all paragraphs in header tags, but that doesn't help. Header tags should make content easier to read for both search engines and users.

Header tags are useful when reflecting the logical structure (or outline) of a page. If you have a main title, use the H1 tag. Relevant subheadings should use the H2 tag. Use headers logically, and they can strengthen other ranking factors.

Sorting in Search Engines and Link Building

Links are the first "external" ranking factor used by search engines. Google was not the first search engine to consider links as "votes," but it was the first search engine to heavily rely on link analysis as a way to increase relevance.

Despite discussions around other signals, links and content continue to be the most important external signals for Google's rankings. As you will understand, some links are more valuable than others.

Link Quality

If you were sick, whose advice would you trust more – five doctors or 50 random people giving advice while you walk down the street?

Unless you've had a bad experience with doctors, you're likely to trust their advice. Even though you receive fewer opinions, they come from experts, and their opinion is much more valued, so it carries more weight.

Search engines work the same way. They count all the links pointing to your site (except those blocked with nofollow or other methods), but not all links are valued equally. Links that are considered of higher quality are given more weight.

What does link quality mean? In many cases, it's something you understand when you see it. For example, a link from a large, respected site will be more valuable on the quality scale than a link coming from a blog comment. Additionally, links from sites related to your site's topic will also be more valuable.

Link  Text

Amazon has millions of links, yet it doesn't rank for "ships." It ranks for "books." Why? Because many of the links pointing to Amazon contain the word "books," while relatively few mention "ships," since Amazon doesn't sell ships.

The words in a link – the anchor text – are seen by search engines as a way of describing the site from another site. It's like someone pointing to you and saying "books," declaring you an expert on the topic.

You can't always control the words people use to link to you, so you should take advantage of the opportunity to strategically plan the anchor text in your link building efforts.

Number of Links

Many websites can add a large number of links to achieve SEO success. Moreover, if you have links from a variety of different sites, it is even more valuable. When everything else is equal, one link from 1,000 sites holds much more value than 1,000 links from a single site.

In the past, the number of links was a much more important factor, but with the development of search engines and their ability to assess the quality of links, the significance of the quantity has greatly decreased.

Viral link-building campaigns, badges, and widgets can be effective for acquiring a large number of links, and even search engine representatives have recommended these methods.

However, don't forget to avoid using automated programs and spamming blogs in search of links. This is not only undesirable but can also be harmful, as we will discuss later in this guide.