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 2026-08-25. For this date, NameServerHistory found 69 DNS check records, 69 successful responses, 0 failed responses, and 340 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

69

Historical checks stored for this nameserver on selected date

Average Latency

340 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 23:56

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

69

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 2026-08-25 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
69 2026-08-25 23:56 639232985300872416
165 ms 207.136.2.98
68 2026-08-25 23:39 639232974980190573
178 ms 207.136.2.98
67 2026-08-25 23:22 639232964577050707
78 ms 207.136.2.98
66 2026-08-25 22:28 639232932163142799
484 ms 207.136.2.98
65 2026-08-25 22:10 639232921673215474
169 ms 207.136.2.98
64 2026-08-25 21:53 639232911234504639
166 ms 207.136.2.98
63 2026-08-25 21:35 639232900747078453
78 ms 207.136.2.98
62 2026-08-25 21:18 639232890389222534
228 ms 207.136.2.98
61 2026-08-25 21:01 639232880143390843
179 ms 207.136.2.98
60 2026-08-25 20:44 639232869755024069
74 ms 207.136.2.98
59 2026-08-25 20:26 639232859355940346
207 ms 207.136.2.98
58 2026-08-25 20:09 639232848992244953
208 ms 207.136.2.98
57 2026-08-25 19:52 639232838596478500
61 ms 207.136.2.98
56 2026-08-25 19:34 639232828175327683
155 ms 207.136.2.98
55 2026-08-25 19:17 639232817798330473
965 ms 207.136.2.98
54 2026-08-25 18:23 639232785462407552
57 ms 207.136.2.98
53 2026-08-25 18:06 639232775177487032
53 ms 207.136.2.98
52 2026-08-25 17:49 639232764991087115
47 ms 207.136.2.98
51 2026-08-25 17:32 639232754842971478
248 ms 207.136.2.98
50 2026-08-25 17:15 639232744455159107
60 ms 207.136.2.98
49 2026-08-25 16:58 639232734145178231
2008 ms 207.136.2.98
48 2026-08-25 16:40 639232723827874402
40 ms 207.136.2.98
47 2026-08-25 16:23 639232713533011892
154 ms 207.136.2.98
46 2026-08-25 16:06 639232703065318207
2017 ms 207.136.2.98
45 2026-08-25 15:49 639232692629559470
252 ms 207.136.2.98
44 2026-08-25 15:31 639232682238836475
42 ms 207.136.2.98
43 2026-08-25 15:14 639232671787004306
37 ms 207.136.2.98
42 2026-08-25 14:19 639232638994329666
95 ms 207.136.2.98
41 2026-08-25 14:02 639232628614783237
68 ms 207.136.2.98
40 2026-08-25 13:45 639232618360728578
89 ms 207.136.2.98
39 2026-08-25 13:28 639232608016476376
55 ms 207.136.2.98
38 2026-08-25 13:10 639232597643611557
30 ms 207.136.2.98
37 2026-08-25 12:53 639232587225721862
223 ms 207.136.2.98
36 2026-08-25 12:36 639232576780683689
258 ms 207.136.2.98
35 2026-08-25 12:18 639232566381512620
223 ms 207.136.2.98
34 2026-08-25 12:01 639232556111768563
92 ms 207.136.2.98
33 2026-08-25 11:44 639232545839529039
57 ms 207.136.2.98
32 2026-08-25 11:26 639232535349285207
241 ms 207.136.2.98
31 2026-08-25 11:09 639232524938080723
71 ms 207.136.2.98
30 2026-08-25 10:15 639232492740373468
308 ms 207.136.2.98
29 2026-08-25 09:58 639232482235303141
2175 ms 207.136.2.98
28 2026-08-25 09:40 639232471861770303
28 ms 207.136.2.98
27 2026-08-25 09:23 639232461630217327
205 ms 207.136.2.98
26 2026-08-25 09:06 639232451282965990
190 ms 207.136.2.98
25 2026-08-25 08:49 639232440814614938
81 ms 207.136.2.98
24 2026-08-25 08:31 639232430410720425
253 ms 207.136.2.98
23 2026-08-25 08:14 639232420003096185
256 ms 207.136.2.98
22 2026-08-25 07:57 639232409467287444
163 ms 207.136.2.98
21 2026-08-25 07:39 639232399077195997
2010 ms 207.136.2.98
20 2026-08-25 07:22 639232388731528337
21 ms 207.136.2.98
19 2026-08-25 07:05 639232378288598612
7 ms 207.136.2.98
18 2026-08-25 06:11 639232346196373643
2099 ms 207.136.2.98
17 2026-08-25 05:54 639232336112370741
8 ms 207.136.2.98
16 2026-08-25 05:38 639232326146508970
35 ms 207.136.2.98
15 2026-08-25 05:21 639232316189381720
7 ms 207.136.2.98
14 2026-08-25 05:05 639232306217998913
181 ms 207.136.2.98
13 2026-08-25 04:48 639232296255744174
66 ms 207.136.2.98
12 2026-08-25 04:31 639232286095760789
99 ms 207.136.2.98
11 2026-08-25 04:14 639232276086186273
2032 ms 207.136.2.98
10 2026-08-25 03:57 639232265900986425
156 ms 207.136.2.98
9 2026-08-25 03:40 639232255723518075
163 ms 207.136.2.98
8 2026-08-25 03:23 639232245484452890
118 ms 207.136.2.98
7 2026-08-25 03:06 639232235157175331
2039 ms 207.136.2.98
6 2026-08-25 02:13 639232203197189095
493 ms 207.136.2.98
5 2026-08-25 01:56 639232192844564298
42 ms 207.136.2.98
4 2026-08-25 01:38 639232182496008942
225 ms 207.136.2.98
3 2026-08-25 01:21 639232172197053132
27 ms 207.136.2.98
2 2026-08-25 00:28 639232140250307418
13 ms 207.136.2.98
1 2026-08-25 00:11 639232129927860324
50 ms 207.136.2.98