Daily over 2 million blogs get published. Add videos and websites, and images, etc. All this new content comes to these search engines every day. Google, Bing, Duck Duck go, Yahoo, etc do the hard job of ranking these pages and showing us the most relevant results. Your website/content is also one of them.
The search engines will scan, crawl, and try to understand (user-friendliness, content quality, ease of navigation, etc) all the new websites. Based on its parameters, it tries to identify high quality and high relevance websites across search queries and rank them accordingly. The process of optimizing your website to rank higher in their search results is called search engine optimization.
What are the factors that Impact SEO?
These are factors that you control and hence can show faster results. Authority and usefulness are the top things search engines look for based on following -
The quality of content on your website is one of the biggest factors in deciding your website rank. Search engines look at the content quality and depth, font size, images, interactive elements, video, ordered lists, readability, etc to determine your content quality.
UX - Design / navigation
Another thing extremely important to google is how the users are experiencing and liking your website. Search engines look at tIme on site, bounce, click-through rate, etc to estimate if your website is user-friendly. Hence it becomes critical what to show first, how to show it, how to make users interact with your content etc.
Technical / Tags
Finally, the technical factors like performance, https, Title tag, meta description, Heading and Subheadings, internal links, Alt tags, etc are crucial to tell search engines how to crawl and understand your website. Without this, it is extremely hard for them to rank your website even if you have everything else right.
These are factors that you have very little control over and hence may take time to build.
Trust is an extremely crucial dimension on which search engines rank websites. One of the most critical factors for determining trust is how many high-quality websites refer to you. This process of other websites linking to you is called building backlinks. Search engine rankings are very sensitive to backlinks from high-quality websites. Building high-quality content and relationships with influencers/fans are the best way to get backlinks.
Another way to build trust is by having quality shares from influencers. Social signals like shares, likes, comments, etc influence your page rankings.