Technical SEO is all about optimizing your website's backend to make it appear "healthier, more user-friendly, and more trustworthy" in the eyes of search engines. It doesn't handle writing fancy articles or building backlinks; instead, it ensures that Google's crawler can easily access, understand, and enjoy your website, ultimately recommending your pages to users willingly.
Its core points can be summarized into the following four aspects:
I. Accessibility: Opening the "Gateway" for Search Engine Crawlers
This is the absolute prerequisite. The goal is to ensure that search engine spiders can enter and traverse your website without any obstacles.
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Crawler Guidance: Politely inform spiders via the
robots.txtfile which areas are allowed for crawling and which should be avoided (e.g., admin panels). At the same time, proactively submit an XML sitemap—essentially providing a "full-site map"—to ensure no important pages are overlooked. -
Index Control: Precisely manage which pages should be indexed by search engines. Use canonical tags to resolve duplicate content issues and consolidate page authority; leverage search engine console tools (e.g., Google Search Console) to monitor indexing status and remove low-quality or invalid pages.
II. Site Architecture: Building a Clear "Information Road Network"
A logical and clear internal structure is crucial for both user experience and search engine efficiency.
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Logical Hierarchy: Adopt a flattened URL structure like “Home > Category > Subcategory > Content Page,” ensuring any important page is reachable within 3–4 clicks.
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Authority Flow: Through thoughtful internal linking, channel authority from the homepage to deeper pages—like unclogging blood vessels—while helping spiders discover more content.
III. Performance & User Experience: Paving a High-Speed, Smooth "Access Runway"
Page experience directly affects user retention and has become a core ranking signal.
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Core Web Vitals: Pay close attention to loading speed (LCP), , and . These directly determine whether users leave due to long waits or annoying layout shifts.
