Product links not working?

I’ve been frustrated with this product recommendations board ever since they decided to require links for every post, but it’s even more frustrating that most of the links I want to post never work, unless it’s something from Amazon. Does anyone else have this issue? When I search for the product on the google tab it won’t let me post it, even if it’s a legitimate product from a legitimate website. For example, I tried posting a product from the Potterybarn Kids website, but couldn’t get it to work. This happens pretty much any time I try to suggest a product. Does anyone have any tricks to get around this issue?