> when you hover over or click on domain names, an additional WHOIS check is done to verify availability

This causes so many duplicate requests, like 5+ per domain

Interesting. The check should only be done once on hover (even if you mouseover multiple times) and then again on click, so I'll have to investigate.

I'm on chrome, if that helps.

So I was re-triggering the request if multiple mouseover events fired before a result came back. I just deployed a fix!

Add a filter option to know which domain is available and which is not.

Yeah, the false positives are annoying, but this is the best balance of speed and accuracy I could think of. The only way to guarantee availability is a WHOIS lookup, which takes 50ms+ per domain, so to check thousands of options would take minutes.

I'm adding a cache of the WHOIS results though, so will hopefully be able to filter a lot more of the false positives from the initial search results in the future.

> but this is the best balance of speed and accuracy

Well, you don’t need to load them all at once, make lazy load, every 10 loaded once.

> The only way to guarantee availability is a WHOIS lookup, which takes 50ms+ per domain,

I remember I used a site before that check domains in the fly and it was fast, it didn’t load everything at once so probably that’s the trick.

Actually on a second thought, I think it’s good like this as long as you can check availability on a click, much better it seems to see all domains at once than going on endless pages! Thanks!

Glad you like it!

Let me know if you have any feedback or feature ideas!

I like it!