When I build complex design's markup, I can create deep level of nesting div's (15-20 nesting level). If it is impact bad on SEO?

  • I don't think so even if more your page is quickly read by bots, more it is good for SEO.
    – Zistoloen
    Aug 19 '16 at 15:37

Multiple nested div's will not affect SEO. As long as the crawlers can navigate your website and encounter unique and valuable content you should be fine.

  • 1
    I agree. Your HTML structure has no impact on SEO. There are only a few tags like <title> to which Google actually pays any special attention. Now that Googlebot is rendering pages, even using <h1> and <b> tags is not needed for SEO because Google sees which text is prominent once it is rendered regardless of what tags are used. Aug 19 '16 at 17:21

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