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Within the Google Service provider Middle structured knowledge documentation, it says that it is best to add structured knowledge to the HTML supply and that it “cannot be generated after a web page has been loaded utilizing JavaScript.” This doesn’t imply Google can’t course of the structured knowledge on the web page if generated utilizing JavaScript, however relatively that it makes it more durable for Google to take action.
Here’s a screenshot of that line:
Jarno van Driel posted about this on LinkedIn and mentioned, “Google Search Central documentation explains find out how to add structured knowledge markup by way of JavaScript, but Google Service provider Middle documentation mentions markup should not be added after a web page has been loaded.” He requested, Which of the docs is right?
Ryan Levering from Google chimed in and mentioned technically each are proper and Google wants to regulate the wording on the doc. He said, “We’re working at discovering the fitting wording to elucidate this discrepancy presently.” He additionally warned “in opposition to operating off and re-implementing your web sites,” if it really works now, go away it.
He then goes on to elucidate that Google Service provider Middle crawlers can and do course of structured knowledge when generated with JavaScript however they’ve seen high quality and inconsistency points with these implementations, in order that they advocate you don’t use it.
He wrote:
It isn’t that GMC crawler cannot ever render JS, however relatively that there are extra usually high quality issues with the rendering and discrepancies when websites do issues like have one worth on uncooked HTML load after which replace that with a strikethrough worth on render. It will get tough when the markup is loaded a method on web page load after which modified or rendered on prime by way of JS.
So if the HTML supply rendered and mentioned one factor after which the JavaScript modifications that later, it could actually confuse Google in some instances.
When it comes to the documentation, he mentioned, “I believe it was simpler to put in writing in GMC to only say that it ought to be within the authentic web page load and we’re re-examining that phrasing now. Usually when you have that potential that is seemingly going to be extra per all our techniques, however it might be unfaithful to say that you would be able to by no means do that.”
4 years in the past, Google got here up with its structured data using JavaScript documentation – as a reminder.
Discussion board dialogue at LinkedIn.
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