@Suvidit-Academy thanks for the response, however, it seems terribly unlikely that these brands all had a legitimate massive fall off in search interest all on the exact same date...

I am finding several instances of weird data drop offs on Google Trends at 1/1/2022. It seems like it's for data associated with a type/category as opposed to a search term. Here are some examples of "search interest" dropping suddenly off to next-to-nothing for prominent brands.

• Patagonia / clothing company
• Lands' End / clothing company
• Carhartt / workwear company

Example screenshot.

Does anyone know what the cause of this is? Has Google stated anything directly about why the data suddenly changed so significantly?

Thank you everyone for your responses. Sorry for the belated reply -- I didn't realize this question had garnered any responses. This is helpful information and thanks again.

I've had someone tell me that google doesn't pay attention to H3 tags -- only H1 and H2.  I haven't found much online to back this up or discredit it; thought I'd ask the Moz community!

Thank you!  That helps a lot.

Thanks so much for the reply. I am still struggling to understand when it's best to use robots.txt

I think I understand that url parameters are best handled in the search console parameters tool, and if you want to keep a page out of the index, it's best to use meta noindex rather than blocking it in robots.txt

What would be an example of when you would want to disallow something in robots.txt?

Hi, wondering if anyone can point me to resources or explain the difference between these two. If a site has url parameters disallowed in Robots.txt is it redundant to edit settings in Search Console parameters to anything other than "Let Googlebot Decide"?

I've had someone tell me that google doesn't pay attention to H3 tags -- only H1 and H2.  I haven't found much online to back this up or discredit it; thought I'd ask the Moz community!