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New Choice for Ad Type

Synchronous or Asynchronous?

9:36 pm on Jun 29, 2013 (gmt 0)

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I just created a new ad. There is now a new choice just above the last step - "get ad code".

You must select Synchronous or Asynchronous (beta).
It defaults to Synchronous.

Which one are you gonna pick?

Synchronous because that is what it has always been (safe, conservative)?
Or be adventurous, and try Asynchronous (beta), at the risk of beta failure?

Seems to me, that I recall the wish that, "If only it were asynchronous."
That is to say, that it would load hastily, without delay, and not based upon other goings on.
Is that correct?
Isn't that always the best option, assuming that the Asynchronous option WORKS. Do they really need to ask us? Shouldn't they just do it?

Should we all go back, and convert ALL our old ad codes to "Asynchronous" (assuming it works, of course). Why would it NOT work? Is beta really required for something like this? Either it works, or it doesn't, right? (I am nowhere near an expert at coding, or how it works - I am just speculating).

I would appreciate feedback from those that DO understand coding, to get some guidance.

I have learned to be a late adapter (saves my hide), so I just defaulted to "synchronous", until I see extensive feedback to the contrary.
4:45 pm on July 3, 2013 (gmt 0)

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It's working fine on my Droid Razr. I can see a noticeable difference for my sites in load time on both mobile and tablets. Think I'll hold off on using it for desktop viewers until it's out of Beta though.
10:26 pm on July 3, 2013 (gmt 0)

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Adsense support told me they were working on putting up examples for responsive design for the asynchronous ads, and I should keep my eye on the Adsense blog.
I'm currently using the synchronous ads as they have examples for responsive ads on

Won't switch to the new format until I see what hey say is OK.
11:24 pm on July 3, 2013 (gmt 0)

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My responsive design is working great with the new ads...so far (mobile to desktop).
1:07 am on July 4, 2013 (gmt 0)

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One little caveat, the new code doesn't show the mobile optimized version (scrolling ad unit with blue arrow).
1:53 am on Aug 3, 2013 (gmt 0)

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System: The following message was spliced on to this thread from: http://www.webmasterworld.com/google_adsense/4598962.htm [webmasterworld.com] by martinibuster - 7:49 pm on Aug 2, 2013 (utc -8)

I've been doing a lot of testing as of late, and I am wondering how many people have switched the new adsense asynchronous code? Have you seen good results? Do the ads match the content? Did you see a drop in CTR at the beginning of July for those ads?
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