DO
Accurately describe the page's content.
Choose title text that reads naturally and effectively communicates the topic of the page's content.
Create unique <title> elements for each page.
Make sure each page on your site has unique text in the <title> element, which helps Google know how the page is distinct from the others on your site. If your site uses separate mobile pages, remember to use descriptive text in the <title> elements on the mobile versions too.
Use brief, but descriptive <title> elements.
<title> elements can be both short and informative. If the text in the <title> element is too long or otherwise deemed less relevant, Google may show only a portion of the text in your <title> element, or a title link that's automatically generated in the search result.
Front-Load Keywords
Place the most important keywords at the beginning of the page title to ensure they are visible in search results.
Keep it Concise
Limit your page titles to 50-60 characters to avoid truncation in SERPs. Focus on clarity and relevance within this character limit.
AVOID
Using text in the <title> element that has no relation to the content on the page.
Using default or vague text like "Untitled" or "New Page 1".
Using the same <title> across your entire site or groups of pages.
Using extremely lengthy text in the <title> that are unhelpful to users.
Stuffing unneeded keywords in your <title> element.