DNS response history for dns021.c.register.com

dns021.c.register.com 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 50 DNS check records, 49 successful responses, 1 failed responses, and 101 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 dns021.c.register.com.
Records on Selected Date

50

Historical checks stored for this nameserver on selected date

Average Latency

101 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 17:14

All timestamps shown in UTC

Latest Resolved IP on Selected Date

216.21.235.21

Most recently resolved hosting IP on selected date

Successful Responses

49

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

2%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for dns021.c.register.com

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
50 2026-08-25 17:14 639232744455159107
7 ms 216.21.235.21
49 2026-08-25 16:56 639232734145178231
47 ms 216.21.235.21
48 2026-08-25 16:39 639232723827874402
26 ms 216.21.235.21
47 2026-08-25 16:22 639232713533011892
10 ms 216.21.235.21
46 2026-08-25 16:05 639232703065318207
50 ms 216.21.235.21
45 2026-08-25 15:47 639232692629559470
19 ms 216.21.235.21
44 2026-08-25 15:30 639232682238836475
15 ms 216.21.235.21
43 2026-08-25 15:12 639232671787004306
21 ms 216.21.235.21
42 2026-08-25 14:18 639232638994329666
2028 ms 216.21.235.21
41 2026-08-25 14:00 639232628614783237
50 ms 216.21.235.21
40 2026-08-25 13:43 639232618360728578
33 ms 216.21.235.21
39 2026-08-25 13:26 639232608016476376
10 ms 216.21.235.21
38 2026-08-25 13:09 639232597643611557
19 ms 216.21.235.21
37 2026-08-25 12:51 639232587225721862
37 ms 216.21.235.21
36 2026-08-25 12:34 639232576780683689
6 ms 216.21.235.21
35 2026-08-25 12:17 639232566381512620
11 ms 216.21.235.21
34 2026-08-25 11:59 639232556111768563
46 ms 216.21.235.21
33 2026-08-25 11:42 639232545839529039
63 ms 216.21.235.21
32 2026-08-25 11:25 639232535349285207
13 ms 216.21.235.21
31 2026-08-25 11:08 639232524938080723
4 ms 216.21.235.21
30 2026-08-25 10:14 639232492740373468
8 ms 216.21.235.21
29 2026-08-25 09:57 639232482235303141
12 ms 216.21.235.21
28 2026-08-25 09:39 639232471861770303
10 ms 216.21.235.21
27 2026-08-25 09:22 639232461630217327
29 ms 216.21.235.21
26 2026-08-25 09:05 639232451282965990
30 ms 216.21.235.21
25 2026-08-25 08:47 639232440814614938
7 ms 216.21.235.21
24 2026-08-25 08:30 639232430410720425
9 ms 216.21.235.21
23 2026-08-25 08:13 639232420003096185
-
22 2026-08-25 07:55 639232409467287444
26 ms 216.21.235.21
21 2026-08-25 07:38 639232399077195997
9 ms 216.21.235.21
20 2026-08-25 07:21 639232388731528337
22 ms 216.21.235.21
19 2026-08-25 07:03 639232378288598612
6 ms 216.21.235.21
18 2026-08-25 06:10 639232346196373643
7 ms 216.21.235.21
17 2026-08-25 05:53 639232336112370741
11 ms 216.21.235.21
16 2026-08-25 05:36 639232326146508970
8 ms 216.21.235.21
15 2026-08-25 05:20 639232316189381720
9 ms 216.21.235.21
14 2026-08-25 05:03 639232306217998913
17 ms 216.21.235.21
13 2026-08-25 04:46 639232296255744174
10 ms 216.21.235.21
12 2026-08-25 04:30 639232286095760789
7 ms 216.21.235.21
11 2026-08-25 04:13 639232276086186273
20 ms 216.21.235.21
10 2026-08-25 03:56 639232265900986425
24 ms 216.21.235.21
9 2026-08-25 03:39 639232255723518075
5 ms 216.21.235.21
8 2026-08-25 03:22 639232245484452890
53 ms 216.21.235.21
7 2026-08-25 03:05 639232235157175331
4 ms 216.21.235.21
6 2026-08-25 02:11 639232203197189095
11 ms 216.21.235.21
5 2026-08-25 01:54 639232192844564298
20 ms 216.21.235.21
4 2026-08-25 01:37 639232182496008942
2011 ms 216.21.235.21
3 2026-08-25 01:20 639232172197053132
7 ms 216.21.235.21
2 2026-08-25 00:26 639232140250307418
13 ms 216.21.235.21
1 2026-08-25 00:09 639232129927860324
26 ms 216.21.235.21