Anyone from Airtel or Tata on list? DNS block issue on search engine

Wed Jul 1 12:19:31 UTC 2020

Starting yesterday, we’ve noticed the search engine DuckDuckGo being blocked via DNS in India. Specifically, users using Airtel or Tata DNS servers. Other search engines are fine (Bing, etc.,.). I know alot of blocking is occurring in India recently, but I think the net was incorrectly cast over this one. Its not all ISPs in India, so far just Airtel and Tata.

$ dig @122.166.234.70 duckduckgo.com

; <<>> DiG 9.10.6 <<>> @122.166.234.70 duckduckgo.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 7316
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
;; QUESTION SECTION:
;duckduckgo.com.			IN	A

;; AUTHORITY SECTION:
rpz.airtelblack.com.	262	IN	SOA	rpz.airtelblack.com. hostmaster.rpz.airtelblack.com. 2360 3 3 2419200 604800

$ dig @59.163.126.38 duckduckgo.com

; <<>> DiG 9.10.6 <<>> @59.163.126.38 duckduckgo.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36722
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
;; QUESTION SECTION:
;duckduckgo.com.			IN	A

;; ANSWER SECTION:
duckduckgo.com.		10800	IN	A	127.0.0.1
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