I think it's appropriate to comment, for people who start, that the information displayed on our browsers is interpreted code by them. You can see it by right clicking on your browser and selecting "view source". This code is translated by the browser based on certain attributes or labels that tell you how to present the information. For example the same sentence can be interpreted in different ways if we assign the title tag or paragraph, or even not show up in the browser (but be taken into account by Google) if set Meta Tag. To learn more about HTML you can visit the W3Schools .
Here are in depth SEO On Page optimization techniques for your page content
Page Title (Title Tag or Tag Title)
The title is probably the most important element to optimize for On Page SEO. Google considers the title as one of the most significant factors in determining the subject matter of your pages, and it is therefore important to communicate in the best possible way.
Where do we find our web page title? The title does not appear in the visible content, but is shown in the title bar of the browser and search results.
Tips to optimize Title Tag for SEO On Page techniques.
You must build your titles naturally, and it should contain the primary key phrase you have chosen for each particular page, and if possible try to limit the number of words that do not provide relevant information, such as "from" "to", etc..
The title should be unique for each page.
Web Page content
For Google to index your site or page, content should have, i.e. text, images, videos ... then the content will be analyzed and used, among other factors, to describe the relevance of your site in the niche you are in, so the content is one of the most important factors to consider for SEO On Page optimization techniques.
The essential factors determining high quality content for SEO On Page
The key phrases analysis will serve to improve and optimize your existing website content or new content for website. Although this process can be applied or performed anytime but best it can be done at the beginning. We must keep in mind that we want to attract visitors who may be interested in our website, and thus assist them to find interesting content that matches their search result. It is important to create unique and quality content that not only attract maximum number of visitors to website, but also attract the maximum number of qualified visitors who can benefit from what you offer.
The keyword or key phrase we have chosen should display in the relevant content of each page and one should remember, excessive and irrelevant keyword or key phrase usage lead to SPAM. According to SEO Expert, keyword density should fall between 1 to 3%. Normally Google is not only indexing and categorizes pages using a single keyword or phrase, but also analyzes the content that is most relevant in the overall context. Theoretically each page should be optimized for a single keyword or key phrase, but in writing we may introduce or identify other SEO keywords or key phrases that also sometimes consider for appearance of our pages in different search results.
Tips to optimize content for SEO On Page.
We must study and choose the best possible key phrase for each of the pages that make up our website and develop our content around it.
Although there is no such consensus on the length of the articles, it is recommended that the web page should contain at least 300 words.
The content should be attractive and especially useful for visitors.
We should not just fill the whole page with keywords and key phrases, but we should write naturally, otherwise it neither beneficial for reader nor with Google.
It is advisable to include at least one image and describe it properly, using Alt and Title.
One trick that sometimes works is to include a video that is hosted on the same domain. Google likes video content and includes up in the search results page.
Meta Description (Meta Description Tag)
As the name suggests, the Meta Description is a Meta tag that describe your web page. By using the Meta description tag, you add a short description to your web pages that is displayed in the search results.
Tips to Optimize your Meta DescriptionWe must write adequate descriptions of a web page, otherwise Google may choose to display an alternative description taken from the text of our website.
It should attract attention, without falling into the spam, as if striking enough that we sometimes get elected instead of other less attractive results with descriptions.
Must contain our main Key Phrase Extraction in question, and do it naturally, not forced.
It must be understood, it not just a list of key words or phrases but it must make sense to people, besides Google can penalize overuse of keywords.
The maximum length of Meta description can be up to 150 characters, but you better keep on 141 because Google usually shows the date of the article next to the description. If we exceed the recommended number of characters, search engines generally truncate and show (...), same as in the case of Page titles and this may harm us.
Header Tag (Headers)
Although most browsers recognize up to 6 levels Headers, typically use only three: H1, H2 and H3. The Headers are one of the ways in which we inform Google, and our visitors, the content and direction of our pages.
The major headings element are H1, H2 and H3
Tips to Optimize Header tags
The most important Header for Google sites is the H1, H2 and H3 tags, and this is the order in which they should appear in the articles.
Although there is a consensus to have only one H1 header on your site otherwise it negatively affects SEO, while H2 and H3 tags can be used as many times as you need to structure your article.
Our Primary key phrase should appear in the H1 tag, always in a natural way and never forced.
The H2 and H3 tags will reserve for the different sections of our article, which include secondary keyword phrase if possible.
It is important to remember that the Header tag should not be placed in the article "just like that", but it should be semantically structured our content into sections and sub-sections.
You organize content according to publishing system you have chosen. For example if you use WordPress you could have organize your items by category system, and if you've created your website with HTML, it can be organize on the server by physical subdirectories.
A well structured website is beneficial for SEO
Tips to optimize web structure of your website for SEO On Page
The more connected and simpler would be the structure of our site; it will be more accessible and easier to index your pages.
Lower levels pages should not be too remote from top to prevent them from falling without being visited.
Theoretically you can create a structure as deep as you need, provided that the pages are properly linked together and did not enter a path between them too large.
Normally it is recommended that all pages are at most two links away from the home page.
Whatever system you use should not try to insert as many possible keywords in the URL of your tickets, one or two would be nice but more than that it would run to the risk of being penalized by SPAM.
Separate words or phrases with dashes "-". For example for "Buy used cars" use "Buy-used-cars".
It is generally advised against the use of dates or other classification system, which seemed to be much less efficient for SEO On Page.
SEO Image Optimization
Normally, unless the website mainly concerned about an issue where images are protagonists, (a photographer, for example) it is usual to use one or more of them to illustrate our content or to make it more attractive. The images, like the text, are analyzed by Google, and also in return help in optimizing our website.
Images can also be optimized for SEO
Tips to optimize your images for SEO On Page.
Use our key words or phrases in the file name.
Use our key words or phrases in the Title and Alt tags
Include location if relevant.
Optimize the size of your images, to keep fast loading, otherwise it would negatively affect the SEO.
Bold and Italics
There is not much consensus on this issue, but the overall impression is that Google does not pay much attention to the phrases that appear in bold or italics, and should be used only to highlight or reinforce concepts. In any case, it is not harmful to use from time to time to highlight your key phrases if that do not harm the readability of your content, or you fall into the SPAM.
Internal Links on Web Page
Internal links, are those that point to pages within our website, are also important for SEO, since it help both Google and our visitors to discover new pages within our website. When Google comes to one of our web pages, and read the content and start indexing, it begins to follow the internal links pointing to other pages of our site, so it is important to link them together so that they can all be visited and indexed.
Tips to optimize our internal links for SEO On Page
It is advisable to link directly to our other pages relevant to the topic, at the end of each article, in the sidebar, etc.
Also a good idea to link to other articles in the text itself, and do it to contribute or expand the article.
The menus increase visibility and structure of your website, the main menu should open up your categories or sections, and all pages should include the main menu to connect to the home page and each of the categories or sections.
External Links on Web Page
External links are those that go to other sites, outside our own website. Although there are opinions against this practice, arguing that doing so would dilute the authority of our website but it is almost universal consent that it help in improving the SEO On Page because through these links it provide value to the visitor and this is a positive sign for Google.
Tips to optimize our external links for SEO On Page
We must be cautious and not link to sites whose content or reputation may be harmful to our website.
It is convenient to link to other websites that are related to our content and provide additional resources and information.
According to Google the Meta Keywords ceased to be taken into account in a while and there are many SEO professionals that claim not to use directly.
I hope this brief introduction to SEO On Page would be interesting, if you have any questions, want to point out an error or participate in any way, feel free to comment.