Yes, I did not expect it will go on #1 page on HackerNews, there is really huge traffic right now and I try to fix this issue.

Well, congratulations on your unexpected success! :)

It's a little hard to use right now, but the results I've managed to get are great so far. Nice work!

May I ask what your eventual monetization strategy is (if any)? Ads? Subscriptions? Pay-per-use lookups?