As you know a keyword is a word or phrase that people use to search for information on the internet. In SEO, keywords are used to help websites rank higher in search engine results pages (SERPs). Keywords helps search engines and website users understand what a particular page is trying to convey, In order to that making content of the webpage with appropriate keywords is a crucial task.

Once you have identified the keywords you want to use then correctly arrange them in between the content of your webpage. If we use too few keywords then search engine may not understand what the page is about similarly if too many keywords are used, then search engine may see that as an attempt to make increase in search rankings , This is reffered to as the term ‘Keyword stuffing’ simply it means overusing keywords and may leads to the content unreadable for the users. This activity is against the SEO guidelines and comes under the ‘Black hat SEO’ techniques this can be discussed later, now come to the number of keywords in a webpage

Keyword Density is the number of times a specific keyword is used on a page of content. It is normally expressed in a percentage of the total number of words on a page. The optimal keyword density for a web page will vary depending on the keyword or keyword phrase, the page’s overall content, and the target audience. Aim for a keyword density of 1-2% as a general rule of thumb.

you can follow the below tips for using keywords effectively on web pages and improving SEO

• Choose the right keywords: When choosing keywords for your website, it is important to choose keywords that are relevant to your content and that have a high search volume.
• Use keywords naturally: Don’t try to force keywords into your content. Use them naturally and in a way that makes sense for your audience.
• Vary your keyword usage: Don’t just use the same keyword over and over again. Use different variations of the keyword, such as synonyms, related terms, and long-tail keywords.
• Use keyword research tools: There are a number of keyword research tools that can help you choose the right keywords for your website and track your keyword performance.