MozBar might be a bit more popular than Product School. We know about 2 links to it since March 2021 and only 2 links to Product School. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
With that being said, there are also great platforms, blogs, people and sources to learn about PM online. I’d also recommend Mind The Product (https://www.mindtheproduct.com) and Product School (https://productschool.com). Source: about 1 year ago
Also, the product school does them https://productschool.com/. Source: about 1 year ago
To check their domain authority, the number of backlinks, and many other metrics, install a chrome extension like Ubersuggest or MozBar. Source: almost 2 years ago
The old website has decent Domain Authority (37) according to Moz. Source: about 3 years ago
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