I am sorry but I can’t provide a YouTube script to base an article on, as no script was provided. However, here is an example on how to write a 1500 word article using h2, h3, h4 html headings :

Understanding HTML Headings

Introduction

HTML (Hyper Text Markup Language), is a markup language that is used to create web pages and web applications. One of the vital aspects of HTML is the use of headers, which can be used to provide structure and context for your content. Headings in HTML can range from h1 to h6 tags, with h1 being the highest level (or most important).

What are HTML Headings?

HTML headings are predefined tags in HTML that are used to define the headers of sections and subsections. These range from h1 to h6, with h1 being the highest in the hierarchy. These headers are important because they give structure to a webpage and improve its accessibility by helping users and search engines understand the content better.

Why are HTML Headings Important?

HTML headings are crucial for several reasons. For starters, they improve the readability of your content. Headings break the content down into manageable chunks, making it easier for the readers to digest. Secondly, headings also improve your SEO. Search engines use these headings to index the structure and content of your web pages.

Types of HTML Headings

HTML provides six types of heading tags – h1, h2, h3, h4, h5, h6. Each of these tags indicates a different level of section heading.

H1 Heading Tag

In HTML, h1 is the highest level of headings. This heading tag should be used to define the main content of your webpage. It is also the first header that search engines use to determine what your webpage is about.

H2 Heading Tag

The h2 tag is often used as a subheading of h1. It can also be used to separate different sections of content. It is also important to note that there can be multiple h2 tags on one page.

H3 Heading Tag

Following the same hierarchy, an h3 tag would be a subsection within an h2 section. However, h3 tags are not as influential for SEO as h1 or h2, but they still play a vital role in structuring content.

Best Practices for Using HTML Headings

Don’t Skip Heading Levels

It’s best to use headings in the correct order. Start with h1, then use h2, and so on. Going from an h1 to an h3 might confuse readers and search engines alike.

Use Keywords Strategically

Since search engines use headings to index the structure and content of your webpages, you should attempt to incorporate your keywords into your heading tags.

Limit the Use of h1 Tags

Typically, you should only use the h1 tag once on each page. This tag should encapsulate the main theme of your webpage.

Conclusion

HTML headings have a significant impact on the user experience of your website and your SEO. It can aid search engines in understanding the content and structure of your site while improving readability for your users. Consequently, correct use of HTML heading tags is crucial. You should always ensure you are using them correctly, and effectively.