So why does dig udemy.com return 1.1.1.1?
When I enter https://1.1.1.1 on the browser URL, it opens a landing page from Cloudflare.
; <<>> DiG 9.17.1 <<>> udemy.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18183
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;udemy.com. IN A
;; ANSWER SECTION:
udemy.com. 58 IN A 1.1.1.1
;; Query time: 28 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Jun 08 20:57:47 AUS Eastern Standard Time 2020
;; MSG SIZE rcvd: 54```