DNS response history for 21c.tc

21c.tc is a DNS nameserver monitored by NameServerHistory. This page provides historical DNS response-time data, nameserver uptime signals, DNS latency observations, resolved IP history, successful response counts, failed response counts, and reliability indicators for this nameserver.

The selected UTC date is 2026-09-14. For this date, NameServerHistory found 51 DNS check records, 51 successful responses, 0 failed responses, and 326 ms average response time. Current selected-date status: At least one successful DNS response was recorded for the selected date.

  • Use this report to investigate historical DNS uptime and nameserver reliability.
  • Compare DNS latency changes, failed DNS checks, and response behavior over time.
  • Review the latest resolved IP address and raw DNS check history for 21c.tc.
Records on Selected Date

51

Historical checks stored for this nameserver on selected date

Average Latency

326 ms

Calculated from available response records

Latest Check on Selected Date

2026-09-14 18:11

All timestamps shown in UTC

Latest Resolved IP on Selected Date

207.136.2.98

Most recently resolved hosting IP on selected date

Successful Responses

51

Checks that returned a measurable response

Failed Responses

0

Checks with no response or no returned latency

Failure Rate

0%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for 21c.tc

Showing DNS history for 2026-09-14 UTC. Newest records appear first.

Latency bars are scaled to a maximum of 5000 ms for quick visual comparison.

# Query Time (UTC) Correlation ID Latency Response IP Address
51 2026-09-14 18:11 639250057708107800
24 ms 207.136.2.98
50 2026-09-14 17:52 639250046562049125
7 ms 207.136.2.98
49 2026-09-14 16:57 639250013509702191
952 ms 207.136.2.98
48 2026-09-14 16:39 639250002580620728
75 ms 207.136.2.98
47 2026-09-14 16:21 639249991745663911
55 ms 207.136.2.98
46 2026-09-14 16:03 639249980865516443
46 ms 207.136.2.98
45 2026-09-14 15:44 639249969862613877
72 ms 207.136.2.98
44 2026-09-14 15:26 639249958886637893
260 ms 207.136.2.98
43 2026-09-14 15:08 639249947973088862
30 ms 207.136.2.98
42 2026-09-14 14:50 639249936944753964
40 ms 207.136.2.98
41 2026-09-14 14:31 639249925992255418
8 ms 207.136.2.98
40 2026-09-14 14:13 639249915051234319
104 ms 207.136.2.98
39 2026-09-14 13:55 639249903945505515
185 ms 207.136.2.98
38 2026-09-14 13:36 639249892717172084
107 ms 207.136.2.98
37 2026-09-14 12:42 639249860420622618
59 ms 207.136.2.98
36 2026-09-14 12:24 639249849360612619
196 ms 207.136.2.98
35 2026-09-14 12:05 639249838530368307
194 ms 207.136.2.98
34 2026-09-14 11:47 639249827575371229
44 ms 207.136.2.98
33 2026-09-14 11:29 639249816615668257
72 ms 207.136.2.98
32 2026-09-14 11:11 639249805442171049
77 ms 207.136.2.98
31 2026-09-14 10:51 639249794155370842
259 ms 207.136.2.98
30 2026-09-14 10:33 639249783154776069
19 ms 207.136.2.98
29 2026-09-14 10:15 639249772121150234
166 ms 207.136.2.98
28 2026-09-14 09:56 639249761048544880
2135 ms 207.136.2.98
27 2026-09-14 09:38 639249749882127820
311 ms 207.136.2.98
26 2026-09-14 09:19 639249738710121410
32 ms 207.136.2.98
25 2026-09-14 08:24 639249705906152878
193 ms 207.136.2.98
24 2026-09-14 08:06 639249695057807031
194 ms 207.136.2.98
23 2026-09-14 07:48 639249684047448685
78 ms 207.136.2.98
22 2026-09-14 07:30 639249673145263442
37 ms 207.136.2.98
21 2026-09-14 07:12 639249662272618596
49 ms 207.136.2.98
20 2026-09-14 06:53 639249651231312660
252 ms 207.136.2.98
19 2026-09-14 06:35 639249640601476405
250 ms 207.136.2.98
18 2026-09-14 06:17 639249629710763416
92 ms 207.136.2.98
17 2026-09-14 05:59 639249618831763925
16 ms 207.136.2.98
16 2026-09-14 05:41 639249608080541028
339 ms 207.136.2.98
15 2026-09-14 05:23 639249596980711664
44 ms 207.136.2.98
14 2026-09-14 05:05 639249586033736608
421 ms 207.136.2.98
13 2026-09-14 04:11 639249554241376085
2062 ms 207.136.2.98
12 2026-09-14 03:54 639249543897837856
263 ms 207.136.2.98
11 2026-09-14 03:37 639249533459307021
256 ms 207.136.2.98
10 2026-09-14 03:20 639249523166091923
2011 ms 207.136.2.98
9 2026-09-14 03:03 639249512992622650
2014 ms 207.136.2.98
8 2026-09-14 02:46 639249502720459876
51 ms 207.136.2.98
7 2026-09-14 02:28 639249492273334450
20 ms 207.136.2.98
6 2026-09-14 02:11 639249481926702111
87 ms 207.136.2.98
5 2026-09-14 01:53 639249471345531710
108 ms 207.136.2.98
4 2026-09-14 01:36 639249460661234260
35 ms 207.136.2.98
3 2026-09-14 01:18 639249450047021873
2206 ms 207.136.2.98
2 2026-09-14 01:00 639249439201885522
13 ms 207.136.2.98
1 2026-09-14 00:07 639249407335664141
14 ms 207.136.2.98