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First, you must understand that reptiles like text. Each piece of information on the page is eventually converted to a string of words. Name of the domain name site),. URL (network address, full name: Uniform Resource Locator), filename (name of the file you created) or page title, these are text blocks. The page meta tags (the elements that describe the page's information), tags, page text, and even the alt tag of the picture (for information about the picture, for reptiles or visually impaired people) are also blocks of text. Even the inbound and outbound chains on each page are text blocks.
To do more, it needs to look at all the text blocks of all the pages that are linked to your page (or to which you are linking). In short, for Googlebot, everything is a block of text.
If you see someone in the forum saying "domain name is not important", or "alt tags are overrated", please ignore these views. Like SEO sunflower treasure http://www.seo-seo.com.cn said, SEO is like throwing mud on a wall, you throw a piece, the wall will be stained with some of the number.
The more you throw, the more you dip. When you pursue success, do not ignore any text block.
Each text block has a start, end, and middle pattern. Google checks each block of text individually and places it in the index as part of the page. Can do an experiment on the search engine via intitle:
or Inurl:anykeyword operators (such as intitle:antiques or ~inurl:antiques) to search, you will see that for each block of text, Google puts it in a separate index (the weights are calculated separately). When evaluating a block of text, Google assumes that the relevant keywords appear in the front of each text block, appearing together; In short, the crawler focuses on prominence, proximity, and density.