C99.nl might be a bit more popular than linkstore.app. We know about 1 link to it since March 2021 and only 1 link to linkstore.app. 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 run a bookmarking app: https://linkstore.app/. Source: almost 3 years ago
If you're only interested in finding subdomains you also have: http://api.c99.nl/. Source: about 1 year ago
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