Google Wants To Make AJAX Crawlable

Fri 9 October 2009 17:55, Barry Adams

Google has published a proposal to make AJAX crawlable by search engine spiders. Up to now AJAX code, by virtue of being based on JavaScript, is not crawled by search engine spiders as these crawlers don't execute the JavaScript.

Google's proposed solution is to use an exclamation mark in the URL that would allow crawlers to access a different page state, and thus different content. It's a bit technical but if you're feeling up to it you can read Google's blog post about it here, and/or see the slides below.

The SEO repercussions are obvious - you can now let users link to different states of an AJAX page, and these links will be indexed and can appear in search engine results. This lifts barriers that previously existed on dynamic content and SEO, and can significantly help websites that make widespread use of AJAX.

It's probably no coincidence that many of Google's own sites use AJAX abundantly.

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