Which of the following is a common type of meta tag used in SEO?

A title tag is a crucial element in search engine optimization (SEO) because it helps search engines understand the main topic of a webpage. This tag is displayed in search engine results as the clickable headline for a given result, significantly influencing how users perceive the link and whether they click on it.

Title tags are essential for several reasons. Firstly, they provide a brief yet comprehensive description of the page's content, allowing search engines to index the page accurately. A well-crafted title tag can contain relevant keywords, which can help the page rank higher in search results for those terms. Secondly, title tags affect user behavior; an engaging title can increase click-through rates, driving more traffic to the site.

In contrast to the title tag, other tags such as image tags, anchor tags, and script tags serve different functions. Image tags are used to embed images in web pages, anchor tags create hyperlinks, and script tags include JavaScript code. While these tags contribute to web design and functionality, they do not directly influence SEO as significantly as title tags do.