Common Canonical URL Mistakes on Small Sites
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A quick guide to avoiding confusing canonical signals. 本文会继续围绕搜索意图补充背景说明、操作步骤、对比维度和常见问题，方便读者快速判断重点并继续浏览相关专题。 页面后续会继续补充更多案例、步骤、对比表、风险提示和相关专题链接，让内容具备更完整的阅读路径和搜索覆盖。
Canonical tags tell search engines which version of a page should be treated as primary. Mistakes often appear when sites mix http and https, www and non-www, or tracking parameters.
Check canonical URLs after every launch. They should point to the clean, indexable version of the current page unless there is a deliberate reason to consolidate elsewhere.
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