Connectivity diagnostics Cloudflare DNS on Tele2 network

$ dig example.com @1.1.1.1

; <<>> DiG 9.11.3-1ubuntu1.2-Ubuntu <<>> example.com @1.1.1.1
;; global options: +cmd
;; connection timed out; no servers could be reached

-------------------
$ dig example.com @1.0.0.1

; <<>> DiG 9.11.3-1ubuntu1.2-Ubuntu <<>> example.com @1.0.0.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60643
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;example.com.			IN	A

;; ANSWER SECTION:
example.com.		10746	IN	A	93.184.216.34

;; Query time: 48 msec
;; SERVER: 1.0.0.1#53(1.0.0.1)
;; WHEN: Tue Oct 23 23:23:02 DST 2018
;; MSG SIZE  rcvd: 56

-------------------
$ dig example.com @8.8.8.8

; <<>> DiG 9.11.3-1ubuntu1.2-Ubuntu <<>> example.com @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36977
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;example.com.			IN	A

;; ANSWER SECTION:
example.com.		13563	IN	A	93.184.216.34

;; Query time: 20 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Tue Oct 23 23:23:02 DST 2018
;; MSG SIZE  rcvd: 56

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$ dig +short CHAOS TXT id.server @1.1.1.1
;; connection timed out; no servers could be reached

-------------------
$ dig +short CHAOS TXT id.server @1.0.0.1
"AMS"

-------------------
$ traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 60 byte packets
 1  * * *
 2  * * *
 3  * * *
 4  * * *
 5  * * *
 6  * * *
 7  * * *
 8  * * *
 9  * * *
10  * * *
11  * * *
12  * * *
13  * * *
14  * * *
15  * * *
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

-------------------
$ traceroute 1.0.0.1
traceroute to 1.0.0.1 (1.0.0.1), 30 hops max, 60 byte packets
 1  * * *
 2  * * *
 3  * * *
 4  * * *
 5  * * *
 6  * * *
 7  * * *
 8  * * *
 9  * * *
10  * * *
11  * * *
12  * * *
13  * * *
14  * * *
15  * * *
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

-------------------
$ dig +short CHAOS TXT id.server @1.1.1.1
;; connection timed out; no servers could be reached

-------------------
$ dig +short CHAOS TXT id.server @1.0.0.1
"AMS"

-------------------
$ dig +tcp @1.1.1.1 id.server CH TXT
;; Connection to 1.1.1.1#53(1.1.1.1) for id.server failed: timed out.
;; Connection to 1.1.1.1#53(1.1.1.1) for id.server failed: timed out.

; <<>> DiG 9.11.3-1ubuntu1.2-Ubuntu <<>> +tcp @1.1.1.1 id.server CH TXT
; (1 server found)
;; global options: +cmd
;; connection timed out; no servers could be reached
;; Connection to 1.1.1.1#53(1.1.1.1) for id.server failed: timed out.

-------------------
$ dig +tcp @1.0.0.1 id.server CH TXT

; <<>> DiG 9.11.3-1ubuntu1.2-Ubuntu <<>> +tcp @1.0.0.1 id.server CH TXT
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18793
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;id.server.			CH	TXT

;; ANSWER SECTION:
id.server.		0	CH	TXT	"AMS"

;; Query time: 23 msec
;; SERVER: 1.0.0.1#53(1.0.0.1)
;; WHEN: Tue Oct 23 23:25:03 DST 2018
;; MSG SIZE  rcvd: 54