See this post, "The Cost of No SEO Migration Plan" for a good example of what not to do.

看这篇文章《不拟定SEO迁移计划的代价》，里面有很好的错误案例。

youdao

We “no follow links” within our blog comments due to abuse by SEO spammy types.

由于各种作弊类型的搜索引擎优化都给用滥了，我们不会打开博客评论里的所有网页链接。

youdao

From an SEO perspective, it's obvious that having a blog on your website with constant fresh content is a good thing; no argument there.

从SEO的角度来看，很明显的是，网站上有博客随时更新内容是件好事；毫无疑问。

youdao

There is virtually no SEO trickery here, as so many have reported without any evidence to support these uninformed claims.

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Competitive intelligence in SEO is no exception, and you need to learn all you can about the Internet marketing strategy of your competitors for all these same reasons.

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Though I trust Google, with all the SEO spam, I have no judgement of the quality of some pages.

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