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Title tag is the title of a website that is defined in the webpage source. The title defines the content of your website and helps browsers and robots to know about your webpage content.

Keyword frequency is the number of times a keyword on a single page, the healthy number is 2-3

you can use plugins such as elemontor for website and add buttons from element while specifying the link.

Google will read only 60 characters if you exceed the limit it will just trimmed the title when displayed on serp

An image map is a list of coordinates relating to a specific image, created in order to hyperlink areas of the image to different destinations so that google can crawl it and improve your seo ranking