Key factors influencing your page rank in search engines
Search engines store information about an enormous amount of pages they find on the web. The pages are retrieved by spiders (crawlers) and are then analyzed to see what information is worth indexing (storing). Usually this information is extracted from the titles, headings, the first paragraphs of text content and the meta tags. When you run a search query into a search engine, it displays the best matching pages from the indexed ones, based on a specific page ranking criteria. Different search engines use their own methods of indexing and ranking web pages. Most of them, though, rank web pages based on:
website popularity
quality of the website copy
technical information like meta tags, robots and sitemap files