What Are Meta Tags?

The following text is about meta tags and their function. Meta tags are a part of your website's HTML code that help search engines understand information about your website. This information then influences how your website appears in search results. Meta descriptions summarize the content of the webpage for search engine crawlers and internet users. Viewport meta tags tell the browser to render a webpage according to screen size. Title tags work like meta tags because they also help Google understand what your page is about. Google uses your title tag when displaying your page, just like it uses the meta description. Robots meta tags tell search engines whether you want them to scan or not scan certain parts of your website. By default, all pages and links on web pages are scanned by search bots and web crawlers, but the robots meta tag allows you to override that and choose what gets scanned and what doesn't. If a page is scanned, it can be found by people using search engines. Some people use the robots meta tag as a way to tell search engines that they're not using spammy links, just in case. If you're using WordPress, there are lots of plugins available that can help you with this. The viewport meta tag is used to optimize a website for different screen sizes. Responsive design is Google's recommended method for mobile users. The title tag is important for search engine optimization and setting the page title for display in browser tabs and when the page is shared on social media. Google also says it can understand pages with responsive design better than pages that don't use it.

(source: https://www.semrush.com/blog/meta-tag)