: Whenever you serve the same content using AJAX and when JavaScript is disabled (e.g., search engine bots), you're fine. The bot will just follow the non-JavaScript URL and silently assume that

@Sarah324

Whenever you serve the same content using AJAX and when JavaScript is disabled (e.g., search engine bots), you're fine. The bot will just follow the non-JavaScript URL and silently assume that the dynamically created content of the JavaScript script results in the same page (contents).

Violating this rule, e.g., serving a different page to regular users and to search engine bots, is considered black hat SEO.

UPDATE – Regarding Google et al. will follow the links to 'Ajaxified' links: there's a post about it on Google's Webmaster Central Blog. In short, when you follow a linking scheme where you update the hash part of the current URL in a style that starts with #!, Google will save these as canonical URLs and I think that URLs pointing to a page using this style will generate link juice, too.

Also read Google May Be Crawling AJAX Now – How To Best Take Advantage Of It.

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