网站结构对SEO影响大，如何优化能提升网站排名和用户体验？

Here's a thinking process:

1. Analyze User's Request:
   • Topic: "网站结构对SEO作用于较大，怎样优化能提升网站排名和用户体验？"
   • Format: SEO or network technology article, original content
   • HTML Tags: Use HTML tags throughout, subheadings with

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   • **Word count: 465