Oh sorry, I didn't check any of the other pages. I would always create a unique H1 for every page. So not use the same H1 on every page as you want all of your pages to be as unique as possible.

Hi,

In the case of the site you've mentioned I would do the H1s like this:

H1: LED Products (yups, like the H2 is now).
H2: High Power LED.
H3: All the product names.

Forget about the H4, I hardly believe this will still have any value to search engines.

Hi Jonathan,

I highly doubt it, you normally use the data-href to trigger some events with JavaScript and as these links still have the rel="nofollow" it probably will have the same value (0, as it's nofollow) to search engines.

Hi Sida,

I would add a noindex to the page and as you also will return the 404 status code this is enough data for Google to tell not to index the page itself.

Hope this answers your question.

I don't see any issues with using multiple organization schemas on one page. Mostly because you're listing multiple organizations on the page you'll also tell Google they're multiple by adding the Schema to them. I would even say this is a positive signal to Google because you've used the resources to mark them like that.

I've seen such behavior before, but I'm also pretty sure that it's not related to just uploading the site maps itself as it's just a signal to Google to where they can find the (new) pages. Are the category pages of low quality or is there something else which could cause this?

It still depends a bit on how your analytics tracking code is installed on your site. So I can't say for sure, but the way Google Analytics ecommerce tracking is built is that when you reload the page with the same ecommerce tracking variables as the first time your data is overwritten in Analytics itself. So if the code hasn't changed in between refreshing the page your order will be processed twice but there will only be 1 transaction as just the data gets overwritten.