HTML describes documents. Documents, of course, exist in the real world. Usually in paper format. They have titles, headers, paragraphs, images, and many other components. Titles and headers describe to the reader what the content is about, ie: the subject matter. The content is described mostly in paragraphs. HTML has tags to describe the same things. HTML provides for content and also tags to describe the content which make HTML an excellent method to describe real world documents.

There are several HTML tags that are very effective in describing key parts of your document but unfortunately are not used to their fullest potential. Here are a few:

Title Tags: It defines the title of a document, such as a webpage. A Title tag is displayed in browser tool bars, search engine results, and give a title to a page when added as a bookmark. Title tags are key for SEO as they help search engines to find your specific web pages.

Header Tags: h1 to h6 are used to create headings of different visual sizes and also tell search engines which headings are most important. H1 tags are seen as the most important to search engines and produce the largest visual text. H2 to h6 tags are seen in declining order of importance to search engines and declining visual size on a webpage. Note that heading tags should only be used for headings and not just to make word BIG or BOLD.

Strong Tags: They are used to create text that stands out with a strong emphasis. Use strong tags to help search engines recognize the key content on a web page.
What are emphasis tags?

Emphasis Tags: They are used to place emphasis on text to readers and search engines. Use emphasis tags to help search engines recognize the key content on a web page

Image (XHTML): Images make web pages look nice, and are in many cases, what users are searching for. First of all, to tell search engines what your image is, you need to include the “alt” section of the code. As well as this, in order to enhance your chances of gaining a good ranking in Image searches, your images’ keywords should be placed on the webpage, and in an ideal world, close to the image itself.

Hyperlinks: They are a key element of what makes the world wide web what it is. Without these on web pages, moving from one webpage, or to another website would be a lot more cumbersome. Hyperlinks play a vital role in search engine optimisation, with the amount of links and the anchor text used having a massive input in how relevant search engines consider a site to be to a particular key phrase. In an ideal world your website will link to, or benefit from those offering relevant content, with anchor text containing your keywords or phrases.

Hyperlink No Follow Variant: Generally speaking, links on web pages are considered to be “votes” or “endorsements”. However there are times when you may wish to point your visitors to a particular website, but may not wish to “vote” for it so to speak. In this case, adding a nofollow tag is a solution and is in fact advised by Google if you happen to be placing paid advertisements on your webpage. The nofollow tag in conjunction with a robots.txt file can prevent Search Engines from indexing directories or pages on your website, with many webmasters choosing to keep content such as privacy policies and Ts&Cs out of the Search Engines.