title_body: Where to find current transactions per second statistic? Is there any official website to find it?
  I can't find it on internet.
upvoted_answer: I found cardanowaves.com the other day on r/cardano and it looks useful. Shows over 1M transaction in last 28 days, which is 35K/day. Agrees with previous answer; this may update more dynamically. It updates statistics from the blockchain.