shell:$ nslookup -timeout=2 -retry=1 'whatsapp-cdn-shv-02-lga3.fbcdn.net' Server: 127.0.0.53 Address: 127.0.0.53#53 Non-authoritative answer: Name: whatsapp-cdn-shv-02-lga3.fbcdn.net Address: 157.240.241.60