June 7th, 2013 Structured Data Drop

[RyanOD]

On June 7th, 2013 our structured data (as reported in GWT) dropped from ~61M items on ~7M pages to ~13.5M items on ~1.5M pages. Since that time those numbers have continued to fall. We made no code changes during this time. I've searched around the web and found a few people pointing to a similar June 7th, 2013 drop in reported structured data.

Can anyone offer any insight beyond speculation? Outside of the June 7th date, what can cause such a dramatic drop in structured data? Thanks in advance.

[CraigBradford]

Hey Ryan,

I'm going to look into this for you, so far I've only seen the same articles that you have but I'll ask around and get back to you as soon as I can, just thought I'd drop you a note to let you know your question is being looked at.

Craig

[RyanOD]

Craig,

Actually, our structured data numbers tanked on 6/7 and then bounced back on 6/21 so it isn't an issue anymore. That being said, I'm definitely curious about what happened if you have any ideas.

Thanks for the heads up.

Ryan

[CraigBradford]

That's funny Ryan as I just looked at one of our account that I know has structured data and saw the same thing, a dip then a rise.

http://imgur.com/nxJmzCX

Sounds like a bug in Google's side, which was my first guess, I only got more interested when I read the forums and people said they also had a drop in rankings. Having looked into it, it sounds like those who got a drop in traffic are likely being impacted by updates around that time which was nothing to do with the data issue.

I'm going to mark the question as resolved but I'll add any details I find out.

Craig

nxJmzCX