Final answer:
To improve a webpage's search ranking, add appropriate keywords in the URL, headings, META tags, and main content. Keywords inside images do not significantly enhance SEO as search engines cannot effectively read text within images.
Step-by-step explanation:
To improve the search ranking of a webpage, you should indeed place appropriate search keywords in several locations. These include:
- URL: Including keywords in the URL can be helpful for search engine optimization (SEO).
- Inside headings: Using keywords in headings helps to show the relevance of your content.
- Inside META tags: These tags provide search engines with information about your webpage.
- Inside main content: Placing keywords early in the content is very effective for SEO.
However, placing search keywords inside images is the least effective among the options provided. Search engines typically cannot interpret text contained within images, which makes it difficult for those keywords to contribute to search ranking improvements.