Google Says Changing Structured Data Formats Does Not Result In Drop In Indexed Pages [Video]

Google’s John Mueller said in a video hangout on Friday that changing your structured data format from microdata to JSON-LD would not lead to many of your pages being removed from the Google index. He said this in response to a complaint about this.

John said this at the 52:39 mark into this past Friday’s hangout. He said changing “from microdata to JSON-LD would not result in pages being dropped from the index.”

The webmaster recently updated his 150 million pages of structured data from using microdata to JSON-LD and noticed 98% of the structured data on Google disappeared and a loss of over 40 million pages indexed in Google. John believes this is a result of some sort of technical issue since Google would not remove indexed pages over a structure data change.

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Here is the transcript:

Structure data question.

A website with over 150 million pages updated structured data from microdata to JSON-LD three months …