The new expected update from Google in 2021 will be doubling down with the introduction of Core Web Vitals in this upcoming Core Algorithm Update. The new Core Web Vitals are a list of metrics created to help business owners, marketers, and developers improve user page experience.

It takes between 4 days and 4 weeks for your brand new website to be crawled and indexed by Google. This range, however, is fairly broad and has been challenged by those who claim to have indexed sites in less than 4 days.

On-page SEO or on-site SEO is the exercise of optimizing web page content for search engines and users. Common on-page SEO practices include optimizing title tags, content, internal links, and URLs.

Mastering on-page SEO requires broad knowledge, as it includes many aspects. You can search on Google, there are various self-learning modules available for On-Page SEO, which will provide you detailed understanding. I would prefer you to go for Backlinko or Neil Patel’s definitive guide to learn On-Page SEO.