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 2026-09-04. For this date, NameServerHistory found 54 DNS check records, 54 successful responses, 0 failed responses, and 403 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

54

Historical checks stored for this nameserver on selected date

Average Latency

403 ms

Calculated from available response records

Latest Check on Selected Date

2026-09-04 23:40

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

54

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 2026-09-04 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
54 2026-09-04 23:40 639241615286853468
67 ms 207.136.2.98
53 2026-09-04 23:22 639241604351017121
55 ms 207.136.2.98
52 2026-09-04 23:04 639241593935666423
163 ms 207.136.2.98
51 2026-09-04 22:46 639241583256094854
186 ms 207.136.2.98
50 2026-09-04 21:52 639241550688235379
2355 ms 207.136.2.98
49 2026-09-04 21:35 639241540224960204
43 ms 207.136.2.98
48 2026-09-04 21:17 639241529611778578
47 ms 207.136.2.98
47 2026-09-04 20:59 639241518833458210
2016 ms 207.136.2.98
46 2026-09-04 20:05 639241486401896861
109 ms 207.136.2.98
45 2026-09-04 19:47 639241475763712616
38 ms 207.136.2.98
44 2026-09-04 19:29 639241464917276250
23 ms 207.136.2.98
43 2026-09-04 19:11 639241454132680530
41 ms 207.136.2.98
42 2026-09-04 18:18 639241422029153882
157 ms 207.136.2.98
41 2026-09-04 18:00 639241411564007167
21 ms 207.136.2.98
40 2026-09-04 17:42 639241400788460991
34 ms 207.136.2.98
39 2026-09-04 17:24 639241390188357481
2198 ms 207.136.2.98
38 2026-09-04 16:30 639241357500877814
37 ms 207.136.2.98
37 2026-09-04 16:13 639241346800997748
35 ms 207.136.2.98
36 2026-09-04 15:54 639241336052435445
32 ms 207.136.2.98
35 2026-09-04 15:36 639241325235019250
167 ms 207.136.2.98
34 2026-09-04 14:42 639241293004218322
9 ms 207.136.2.98
33 2026-09-04 14:25 639241282320888017
13 ms 207.136.2.98
32 2026-09-04 14:07 639241271685123230
117 ms 207.136.2.98
31 2026-09-04 13:49 639241260753999714
571 ms 207.136.2.98
30 2026-09-04 12:55 639241228455683938
2033 ms 207.136.2.98
29 2026-09-04 12:37 639241218036426275
132 ms 207.136.2.98
28 2026-09-04 12:20 639241207268845376
474 ms 207.136.2.98
27 2026-09-04 12:01 639241195949458037
608 ms 207.136.2.98
26 2026-09-04 11:06 639241163260227696
2034 ms 207.136.2.98
25 2026-09-04 10:49 639241152615705186
59 ms 207.136.2.98
24 2026-09-04 10:31 639241141830548776
185 ms 207.136.2.98
23 2026-09-04 10:13 639241131040132360
203 ms 207.136.2.98
22 2026-09-04 09:19 639241098811737836
54 ms 207.136.2.98
21 2026-09-04 09:01 639241088162208000
15 ms 207.136.2.98
20 2026-09-04 08:43 639241077351441022
18 ms 207.136.2.98
19 2026-09-04 08:25 639241066451910013
140 ms 207.136.2.98
18 2026-09-04 07:30 639241033741777481
150 ms 207.136.2.98
17 2026-09-04 07:13 639241023099544298
102 ms 207.136.2.98
16 2026-09-04 06:55 639241012322434652
73 ms 207.136.2.98
15 2026-09-04 06:37 639241001492937690
104 ms 207.136.2.98
14 2026-09-04 05:43 639240969366192763
90 ms 207.136.2.98
13 2026-09-04 05:25 639240958661210670
2092 ms 207.136.2.98
12 2026-09-04 05:07 639240947740461872
85 ms 207.136.2.98
11 2026-09-04 04:49 639240936904010614
151 ms 207.136.2.98
10 2026-09-04 03:56 639240904998816445
200 ms 207.136.2.98
9 2026-09-04 03:38 639240894389479235
15 ms 207.136.2.98
8 2026-09-04 03:20 639240883598515012
3 ms 207.136.2.98
7 2026-09-04 03:02 639240872564626752
2081 ms 207.136.2.98
6 2026-09-04 02:08 639240840039143960
2007 ms 207.136.2.98
5 2026-09-04 01:50 639240829157761054
5 ms 207.136.2.98
4 2026-09-04 01:32 639240818342059723
54 ms 207.136.2.98
3 2026-09-04 01:14 639240807494041389
12 ms 207.136.2.98
2 2026-09-04 00:19 639240775016780052
37 ms 207.136.2.98
1 2026-09-04 00:02 639240764601931289
21 ms 207.136.2.98