Do you have any write up on its tech stack?
https://il.godaddy.com/en/domainsearch/find?checkAvail=1&tms...
However, I did notice the flash of something else loading and a redirect, so I hit the browser's back button and this is where it took me:
https://instantdomainsearch.com/?q=led+lighting
Something on that page is causing an immediate redirect to Godaddy.
I just tested on Google Chrome and had slightly different results. Instead of a redirect, the Godaddy page opened in a new tab (which was focused) yet the instantdomainsearch.com page remained in another tab.
Please consider creating an API with possibly a free tier. Right now I have to use godaddy api and it's so darn slow (plus I don't like using godaddy for many of the reasons for which they are so infamous).
A url in the domain search took me to a purchase page for $99/yr. I see the same domain on Hover for $14.... Are you bundling a bunch of additional services or something?