Interfacer might be a bit more popular than Designlab. We know about 1 link to it since March 2021 and only 1 link to Designlab. 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.
I've been mentoring students on http://trydesignlab.com/ for a while (until I launched my own course) and it's a great point to start. They have a UX Academy where you learn from the basics to create a fully-functional portfolio site with 3-4 case studies. Source: almost 3 years ago
You are right, Ok I will replace it by another link with similar content (it's my second favorite) Interfacer.xyz. Source: about 3 years ago
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