The Answer Will Surprise You!
I have read the blogs and post by the “experts.” I’ve read everything I could find on the subject Google has out. I’ve even watched the videos by Matt Cutts on the subject and I was sure I new the answer. I was wrong! The conventional wisdom is that Google and the other search engines cannot and/or do not crawl the contents of an iframe or javascript widget therefore they cannot index it. This is incorrect. Not only does Google crawl and index the content, it uses that content to rank pages in their search results and I will prove it.
http://seowebdesigns.biz/merchantcircle-review-widget
On the above page this content appears ONLY in the iframe and no where else on the page; ”I am so pleased that I chose SEO Web Design services for my consignment website development and internet marketing.”
Below is a link to, and a partial screen shot of the search results for the above quoted text.

As of this date there are 2 pages from this website on the first page of that search result. The MerchantCircle Review Widget blog linked above and 1 of the tag pages that blog also appears on. Notice that the text searched for appears in the page description of the search result. That text only appears in the iframe on those 2 pages. If Google doesn’t crawl AND index the iframe, how is it this text appears in the page description? Google obviously crawls and indexes the content in iframes.
The next question is does Google use that content for ranking pages in the search result? Since those 2 pages are on the first page of that search result, one would have to conclude that they do. But does that content carry as much weight with Google as hard coded content? I say yes and here is why. Those same reviews appear on the homepage. But on the homepage they are not displayed in an iframe. The searched for text is hard coded on the page. So if the hard coded content has more weight, wouldn’t the homepage be in that search result? There are many possible reasons Google chose these 2 pages over the homepage, but I conclude from this that the content in the iframe carries just as much weight with Google as the hard coded content.
What about Javascript Widgets?
I believe the same applies to Javascript Widgets. Here is an example.
http://www.designbusinessengineering.com/
On the above page this content appears only in the MerchantCircle Review Widget and no where else on that page; “This is a top Notch company that is dedicated to making positive changes in peoples lives.”
This is a Javascript Widget.
Below is a link to, and a partial screen shot of the search results for the above quoted text.

Again notice the text searched for appears in the page description of the search result. As of this date the above listing is #1 for that search term so Google has used the content of the Javascript widget to rank this page.
Bottom line is those iframe and javascript widgets are a great way to add fresh dynamic content to your website and they WILL help you with your rankings in Google search results!
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Helpful info. Thanks Steve!
You’re welcome…
New insights for me. I’m amazon associates, so i need this info. thanks
Hi there! Do you know if they make any plugins to help with SEO? I’m trying to get my blog to rank for some targeted keywords but I’m not seeing very good success. If you know of any please share. Many thanks!
Hey! Someone in my Facebook group shared this site with us so I came to check it out. I’m definitely enjoying the information. I’m book-marking and will be tweeting this to my followers! Superb blog and fantastic design.
How did Google get to the iFrame content? you must have links in to where the content is housed?
@ullimike
Google followed the “src” link for the iframe and attributed the content to my website. Same goes for the JavaScript on the other website in the above example.
Hi all,
I enjoy this post the information is very good for all SEOs.
Thanks
But.. the line I” am so pleased that I chose SEO Web Design services for my consignment website development ”
can also be found in the right column of your website.. and it’s not in a iframe.
How can you say that this is not that one that google include?
jm
Hi jm,
I can see how that would confuse people. I did a site redesign about a month ago and decided to add the reviews in the side column without giving this post a single thought. However at the time of writing this blog post, the reviews were NOT in the side column. Below is a link to the archive at The Way Back Machine. As you can see, the reviews were only displayed in the iframe.
http://web.archive.org/web/20110714041526/http://seowebdesigns.biz/merchantcircle-review-widget