A title tag is the page title specified in the HTML <title> element. It appears as the clickable heading in search results, in browser tabs, and as bookmark names, making it one of the most important SEO elements.

Google controls the width of displayed titles in pixels. For English, approximately 50-60 characters are shown, while Japanese titles display about 30-35 characters. Longer titles get truncated, so placing important keywords at the beginning is recommended. SEO title optimization guides teach effective title writing.

Title tags are a critical signal for search engines to understand page content. Titles that naturally include target keywords and accurately reflect page content receive higher rankings.

Google may rewrite title tags in search results based on the query, but setting proper title tags remains an SEO fundamental. SEO beginner guides explain title tag importance in detail.