DNS response history for c.root-servers.net

c.root-servers.net 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 2026-08-10. For this date, NameServerHistory found 82 DNS check records, 82 successful responses, 0 failed responses, and 119 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 c.root-servers.net.
Records on Selected Date

82

Historical checks stored for this nameserver on selected date

Average Latency

119 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-10 23:53

All timestamps shown in UTC

Latest Resolved IP on Selected Date

192.33.4.12

Most recently resolved hosting IP on selected date

Successful Responses

82

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 c.root-servers.net

Showing DNS history for 2026-08-10 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
82 2026-08-10 23:53 639220027366289509
17 ms 192.33.4.12
81 2026-08-10 23:38 639220018272941900
37 ms 192.33.4.12
80 2026-08-10 23:22 639220009109892969
6 ms 192.33.4.12
79 2026-08-10 23:07 639220000040489788
32 ms 192.33.4.12
78 2026-08-10 22:52 639219991197135747
2010 ms 192.33.4.12
77 2026-08-10 22:37 639219982104540014
5 ms 192.33.4.12
76 2026-08-10 22:22 639219973150300215
2 ms 192.33.4.12
75 2026-08-10 22:07 639219964188486697
27 ms 192.33.4.12
74 2026-08-10 21:52 639219954995921784
9 ms 192.33.4.12
73 2026-08-10 21:36 639219945559908104
3 ms 192.33.4.12
72 2026-08-10 20:44 639219914137782273
7 ms 192.33.4.12
71 2026-08-10 20:29 639219904858355064
32 ms 192.33.4.12
70 2026-08-10 20:13 639219895655263396
49 ms 192.33.4.12
69 2026-08-10 19:58 639219886527091074
25 ms 192.33.4.12
68 2026-08-10 19:43 639219877343266628
7 ms 192.33.4.12
67 2026-08-10 19:28 639219868177358195
95 ms 192.33.4.12
66 2026-08-10 19:13 639219859159581515
11 ms 192.33.4.12
65 2026-08-10 18:58 639219850124020182
54 ms 192.33.4.12
64 2026-08-10 18:42 639219840940124840
4 ms 192.33.4.12
63 2026-08-10 18:27 639219831829876486
10 ms 192.33.4.12
62 2026-08-10 18:12 639219822587759143
27 ms 192.33.4.12
61 2026-08-10 17:56 639219813247114428
5 ms 192.33.4.12
60 2026-08-10 17:04 639219781959606396
6 ms 192.33.4.12
59 2026-08-10 16:48 639219772658305431
25 ms 192.33.4.12
58 2026-08-10 16:33 639219763454523027
2028 ms 192.33.4.12
57 2026-08-10 16:17 639219754279127815
9 ms 192.33.4.12
56 2026-08-10 16:02 639219745087467767
30 ms 192.33.4.12
55 2026-08-10 15:47 639219735900678107
4 ms 192.33.4.12
54 2026-08-10 15:31 639219726531461979
40 ms 192.33.4.12
53 2026-08-10 15:16 639219717415222156
2012 ms 192.33.4.12
52 2026-08-10 15:01 639219708266470863
11 ms 192.33.4.12
51 2026-08-10 14:45 639219699049479559
59 ms 192.33.4.12
50 2026-08-10 14:30 639219689775815194
2030 ms 192.33.4.12
49 2026-08-10 14:15 639219680511810632
29 ms 192.33.4.12
48 2026-08-10 13:22 639219648997191257
23 ms 192.33.4.12
47 2026-08-10 13:07 639219639938909436
3 ms 192.33.4.12
46 2026-08-10 12:52 639219630718286441
28 ms 192.33.4.12
45 2026-08-10 12:37 639219621472350410
17 ms 192.33.4.12
44 2026-08-10 12:22 639219612500421992
85 ms 192.33.4.12
43 2026-08-10 12:06 639219603383833445
9 ms 192.33.4.12
42 2026-08-10 11:51 639219594143823358
29 ms 192.33.4.12
41 2026-08-10 11:36 639219585053166024
10 ms 192.33.4.12
40 2026-08-10 11:21 639219575885776644
2 ms 192.33.4.12
39 2026-08-10 11:05 639219566844532361
3 ms 192.33.4.12
38 2026-08-10 10:50 639219557705808294
62 ms 192.33.4.12
37 2026-08-10 10:35 639219548482688649
29 ms 192.33.4.12
36 2026-08-10 09:44 639219517492763539
3 ms 192.33.4.12
35 2026-08-10 09:29 639219508755773605
68 ms 192.33.4.12
34 2026-08-10 09:14 639219499852103863
25 ms 192.33.4.12
33 2026-08-10 09:00 639219490893714387
7 ms 192.33.4.12
32 2026-08-10 08:45 639219482299305521
6 ms 192.33.4.12
31 2026-08-10 08:31 639219473613114853
32 ms 192.33.4.12
30 2026-08-10 08:16 639219465061138643
12 ms 192.33.4.12
29 2026-08-10 08:02 639219456616129015
5 ms 192.33.4.12
28 2026-08-10 07:48 639219447974008557
4 ms 192.33.4.12
27 2026-08-10 07:34 639219439498255213
20 ms 192.33.4.12
26 2026-08-10 07:19 639219430664872256
47 ms 192.33.4.12
25 2026-08-10 07:04 639219421757560037
2 ms 192.33.4.12
24 2026-08-10 06:13 639219390773218684
25 ms 192.33.4.12
23 2026-08-10 05:59 639219382205367722
42 ms 192.33.4.12
22 2026-08-10 05:45 639219373711937615
10 ms 192.33.4.12
21 2026-08-10 05:30 639219365088558404
30 ms 192.33.4.12
20 2026-08-10 05:16 639219356348833255
9 ms 192.33.4.12
19 2026-08-10 05:02 639219347860053478
3 ms 192.33.4.12
18 2026-08-10 04:47 639219339173195121
9 ms 192.33.4.12
17 2026-08-10 04:33 639219330642664669
32 ms 192.33.4.12
16 2026-08-10 04:19 639219322058698995
8 ms 192.33.4.12
15 2026-08-10 04:05 639219313564344199
20 ms 192.33.4.12
14 2026-08-10 03:50 639219304775113236
41 ms 192.33.4.12
13 2026-08-10 03:35 639219295706181119
3 ms 192.33.4.12
12 2026-08-10 02:44 639219264663923254
4 ms 192.33.4.12
11 2026-08-10 02:30 639219256015178099
9 ms 192.33.4.12
10 2026-08-10 02:15 639219247509540188
57 ms 192.33.4.12
9 2026-08-10 02:01 639219238999539092
3 ms 192.33.4.12
8 2026-08-10 01:47 639219230498823902
51 ms 192.33.4.12
7 2026-08-10 01:33 639219221706460911
10 ms 192.33.4.12
6 2026-08-10 01:18 639219212930606887
2 ms 192.33.4.12
5 2026-08-10 01:03 639219204307908525
23 ms 192.33.4.12
4 2026-08-10 00:49 639219195720181470
7 ms 192.33.4.12
3 2026-08-10 00:35 639219186898174002
3 ms 192.33.4.12
2 2026-08-10 00:20 639219178004946976
47 ms 192.33.4.12
1 2026-08-10 00:05 639219168958805474
20 ms 192.33.4.12