Final answer:
It is recommended to use 5-10 relevant meta keywords for SEO. The keywords should be highly relevant to the webpage content.
Step-by-step explanation:
When it comes to meta keywords for SEO, it is recommended to use 5-10 relevant keywords. These should be words or phrases that are highly relevant to the content of the webpage. Using too few or too many keywords can have a negative impact on SEO.
For example, if you have a webpage about 'healthy recipes', some relevant meta keywords could be 'healthy recipes', 'cooking', 'nutrition', 'meal planning', and 'healthy lifestyle'.
Remember, meta keywords are just one aspect of SEO, and their importance has decreased over time. It is also important to focus on other SEO techniques such as quality content, backlinks, and website optimization.
Meta keywords are meta tags that you can use to give search engines more information about a page's content. They're found in a webpage's HTML source code, and are not visible to visitors.