Hi everyone, glad to be on Product Hunt today for SellDom!
I built the price comparator because I'm often buying domains on a few main registrars (Namecheap, Dynadot, Gandi, and OVH) and I wanted a quick way to know where was the least expensive registrar.
But I also found another interesting side-feature. Since there are tons of new domains available, I can simply append an extension to see if it exists, and also check the price of the new ones. For instance, the .best extension can have an important price difference:
https://selldom.io/prices/.best
And using this tool helps me quickly identify the existence of a new domain and it's price in one URL request :)
Thought you'd like it too! Let me know :)
ImprovMX