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 2026-09-07. For this date, NameServerHistory found 71 DNS check records, 71 successful responses, 0 failed responses, and 441 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

71

Historical checks stored for this nameserver on selected date

Average Latency

441 ms

Calculated from available response records

Latest Check on Selected Date

2026-09-07 23:54

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

71

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 2026-09-07 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
71 2026-09-07 23:54 639244216004548276
2108 ms 207.136.2.98
70 2026-09-07 23:37 639244205754081699
14 ms 207.136.2.98
69 2026-09-07 23:20 639244195522433403
190 ms 207.136.2.98
68 2026-09-07 23:03 639244185289664885
63 ms 207.136.2.98
67 2026-09-07 22:46 639244174995088472
2169 ms 207.136.2.98
66 2026-09-07 22:29 639244164688291848
211 ms 207.136.2.98
65 2026-09-07 22:11 639244154402336469
71 ms 207.136.2.98
64 2026-09-07 21:54 639244144111877898
3 ms 207.136.2.98
63 2026-09-07 21:37 639244133650692649
3 ms 207.136.2.98
62 2026-09-07 21:19 639244122977071839
6 ms 207.136.2.98
61 2026-09-07 21:02 639244112406901736
27 ms 207.136.2.98
60 2026-09-07 20:08 639244080125526846
3 ms 207.136.2.98
59 2026-09-07 19:51 639244069855051129
487 ms 207.136.2.98
58 2026-09-07 19:33 639244059468183996
2190 ms 207.136.2.98
57 2026-09-07 19:16 639244049026241178
41 ms 207.136.2.98
56 2026-09-07 18:58 639244038439794319
284 ms 207.136.2.98
55 2026-09-07 18:41 639244028102312151
146 ms 207.136.2.98
54 2026-09-07 18:24 639244017555436690
143 ms 207.136.2.98
53 2026-09-07 18:06 639244007135039280
73 ms 207.136.2.98
52 2026-09-07 17:49 639243996720186115
11 ms 207.136.2.98
51 2026-09-07 17:31 639243986221960822
38 ms 207.136.2.98
50 2026-09-07 17:14 639243975551020689
98 ms 207.136.2.98
49 2026-09-07 16:56 639243964725047461
159 ms 207.136.2.98
48 2026-09-07 16:01 639243932394248912
6 ms 207.136.2.98
47 2026-09-07 15:44 639243921908536641
4 ms 207.136.2.98
46 2026-09-07 15:27 639243911421639692
22 ms 207.136.2.98
45 2026-09-07 15:09 639243901134096351
358 ms 207.136.2.98
44 2026-09-07 14:52 639243890562442920
4 ms 207.136.2.98
43 2026-09-07 14:34 639243880002713553
18 ms 207.136.2.98
42 2026-09-07 14:17 639243869544884881
208 ms 207.136.2.98
41 2026-09-07 13:59 639243859034905706
120 ms 207.136.2.98
40 2026-09-07 13:42 639243848507940314
27 ms 207.136.2.98
39 2026-09-07 13:24 639243837944805752
48 ms 207.136.2.98
38 2026-09-07 13:06 639243826894954646
57 ms 207.136.2.98
37 2026-09-07 12:48 639243816088742588
19 ms 207.136.2.98
36 2026-09-07 11:53 639243783416147641
2021 ms 207.136.2.98
35 2026-09-07 11:36 639243773258728601
2315 ms 207.136.2.98
34 2026-09-07 11:19 639243762932856657
43 ms 207.136.2.98
33 2026-09-07 11:02 639243752634359282
210 ms 207.136.2.98
32 2026-09-07 10:45 639243742203085197
163 ms 207.136.2.98
31 2026-09-07 10:27 639243731892272394
148 ms 207.136.2.98
30 2026-09-07 10:10 639243721587627260
55 ms 207.136.2.98
29 2026-09-07 09:53 639243711160254831
261 ms 207.136.2.98
28 2026-09-07 09:36 639243700909519665
189 ms 207.136.2.98
27 2026-09-07 09:18 639243690486850030
3 ms 207.136.2.98
26 2026-09-07 09:01 639243679783436296
61 ms 207.136.2.98
25 2026-09-07 08:43 639243669009629468
108 ms 207.136.2.98
24 2026-09-07 07:49 639243636835519162
2188 ms 207.136.2.98
23 2026-09-07 07:32 639243626941316325
6 ms 207.136.2.98
22 2026-09-07 07:15 639243616714764850
4 ms 207.136.2.98
21 2026-09-07 06:58 639243606501039731
2007 ms 207.136.2.98
20 2026-09-07 06:41 639243596266470434
32 ms 207.136.2.98
19 2026-09-07 06:24 639243586172516667
37 ms 207.136.2.98
18 2026-09-07 06:08 639243575987774756
53 ms 207.136.2.98
17 2026-09-07 05:51 639243565882806485
135 ms 207.136.2.98
16 2026-09-07 05:34 639243555851188960
46 ms 207.136.2.98
15 2026-09-07 05:17 639243545662104881
178 ms 207.136.2.98
14 2026-09-07 05:00 639243535269289058
17 ms 207.136.2.98
13 2026-09-07 04:42 639243524956377525
13 ms 207.136.2.98
12 2026-09-07 03:50 639243493386067496
2169 ms 207.136.2.98
11 2026-09-07 03:33 639243483597690535
2008 ms 207.136.2.98
10 2026-09-07 03:17 639243473632804102
183 ms 207.136.2.98
9 2026-09-07 03:00 639243463717349151
138 ms 207.136.2.98
8 2026-09-07 02:44 639243453649537459
201 ms 207.136.2.98
7 2026-09-07 02:27 639243443589123938
46 ms 207.136.2.98
6 2026-09-07 02:10 639243433686761270
231 ms 207.136.2.98
5 2026-09-07 01:54 639243423612489114
165 ms 207.136.2.98
4 2026-09-07 01:37 639243413558497889
2119 ms 207.136.2.98
3 2026-09-07 01:20 639243403375015478
226 ms 207.136.2.98
2 2026-09-07 01:03 639243392950546149
2065 ms 207.136.2.98
1 2026-09-07 00:45 639243382294422830
2008 ms 207.136.2.98