You mean airvpn.org. But no, it isn't. It's a dead giveaway if one of the language options for the website is Simplified Chinese. Chinese wouldn't be the first or second language choice for an European/Italian company.
Though, you explicitly wrote that you know it's not affiliated with AirVPN, so I guess you knew deep within they're not part of AirVPN, anyway
The only two websites affiliated with AirVPN are eddie.website and ipleak.net.