about title tag

Question

is it necessary to put title tag between head tag?

Answer 1

it is neccessary like all meta tags. With the title and metatags, the page will be optimized for search engines. The Google Bots will look for the meta tags and title to index a webpage

Answer 2

Not necessary but its convention to be follow provide by https://www.w3.org
if you did not write it effect your web page in search engine optimization
because <title> displays a title for the page in search-engine results

Answer 3

You should put title tag but you did not, HTML page will be rendered correctly but without a title.