DNS response history for d.root-servers.net

d.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 2026-08-22. For this date, NameServerHistory found 74 DNS check records, 72 successful responses, 2 failed responses, and 126 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 d.root-servers.net.
Records on Selected Date

74

Historical checks stored for this nameserver on selected date

Average Latency

126 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-22 23:46

All timestamps shown in UTC

Latest Resolved IP on Selected Date

199.7.91.13

Most recently resolved hosting IP on selected date

Successful Responses

72

Checks that returned a measurable response

Failed Responses

2

Checks with no response or no returned latency

Failure Rate

3%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for d.root-servers.net

Showing DNS history for 2026-08-22 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
74 2026-08-22 23:46 639230391807229016
8 ms 199.7.91.13
73 2026-08-22 23:30 639230382051619327
10 ms 199.7.91.13
72 2026-08-22 23:14 639230372323353529
3 ms 199.7.91.13
71 2026-08-22 22:57 639230362586451064
8 ms 199.7.91.13
70 2026-08-22 22:41 639230352793666303
3 ms 199.7.91.13
69 2026-08-22 22:24 639230342775737758
2 ms 199.7.91.13
68 2026-08-22 22:07 639230332639939561
7 ms 199.7.91.13
67 2026-08-22 21:15 639230301014190104
6 ms 199.7.91.13
66 2026-08-22 20:58 639230291048161498
15 ms 199.7.91.13
65 2026-08-22 20:41 639230280894353664
3 ms 199.7.91.13
64 2026-08-22 20:24 639230270699419073
3 ms 199.7.91.13
63 2026-08-22 20:07 639230260248163050
32 ms 199.7.91.13
62 2026-08-22 19:50 639230250122494282
7 ms 199.7.91.13
61 2026-08-22 19:33 639230239972935046
2 ms 199.7.91.13
60 2026-08-22 19:16 639230229963262464
16 ms 199.7.91.13
59 2026-08-22 19:00 639230220033804658
5 ms 199.7.91.13
58 2026-08-22 18:43 639230209891107289
31 ms 199.7.91.13
57 2026-08-22 18:26 639230199630298717
2 ms 199.7.91.13
56 2026-08-22 18:09 639230189301984150
84 ms 199.7.91.13
55 2026-08-22 17:15 639230157138468804
2 ms 199.7.91.13
54 2026-08-22 16:58 639230146987869495
40 ms 199.7.91.13
53 2026-08-22 16:41 639230136768638516
11 ms 199.7.91.13
52 2026-08-22 16:24 639230126735907877
2 ms 199.7.91.13
51 2026-08-22 16:07 639230116551187768
3 ms 199.7.91.13
50 2026-08-22 15:50 639230106335615913
9 ms 199.7.91.13
49 2026-08-22 15:33 639230096177758176
5 ms 199.7.91.13
48 2026-08-22 15:17 639230086185999993
17 ms 199.7.91.13
47 2026-08-22 15:00 639230076247854903
2 ms 199.7.91.13
46 2026-08-22 14:43 639230066076077530
10 ms 199.7.91.13
45 2026-08-22 14:26 639230055738197328
29 ms 199.7.91.13
44 2026-08-22 14:09 639230045411225521
12 ms 199.7.91.13
43 2026-08-22 13:15 639230013046000470
7 ms 199.7.91.13
42 2026-08-22 12:58 639230003090037878
24 ms 199.7.91.13
41 2026-08-22 12:41 639229993008259475
5 ms 199.7.91.13
40 2026-08-22 12:25 639229982909449470
4055 ms 199.7.91.13
39 2026-08-22 12:08 639229973035502212
2 ms 199.7.91.13
38 2026-08-22 11:51 639229963064296145
3 ms 199.7.91.13
37 2026-08-22 11:35 639229952996162143
5 ms 199.7.91.13
36 2026-08-22 11:18 639229943051949195
4 ms 199.7.91.13
35 2026-08-22 11:01 639229932919214934
3 ms 199.7.91.13
34 2026-08-22 10:44 639229922745889838
26 ms 199.7.91.13
33 2026-08-22 10:27 639229912587214796
31 ms 199.7.91.13
32 2026-08-22 10:10 639229902240004454
24 ms 199.7.91.13
31 2026-08-22 09:18 639229870800501662
3 ms 199.7.91.13
30 2026-08-22 09:01 639229861058384956
41 ms 199.7.91.13
29 2026-08-22 08:45 639229851158592604
2 ms 199.7.91.13
28 2026-08-22 08:29 639229841475569629
5 ms 199.7.91.13
27 2026-08-22 08:13 639229831887658471
6 ms 199.7.91.13
26 2026-08-22 07:56 639229822043670346
9 ms 199.7.91.13
25 2026-08-22 07:40 639229812327913936
2029 ms 199.7.91.13
24 2026-08-22 07:24 639229802629488686
7 ms 199.7.91.13
23 2026-08-22 07:08 639229793051447309
13 ms 199.7.91.13
22 2026-08-22 06:52 639229783303531961
2007 ms 199.7.91.13
21 2026-08-22 06:35 639229773458051942
31 ms 199.7.91.13
20 2026-08-22 06:19 639229763373848056
20 ms 199.7.91.13
19 2026-08-22 05:27 639229732140622809
-
18 2026-08-22 05:11 639229722699695967
3 ms 199.7.91.13
17 2026-08-22 04:55 639229713097498075
-
16 2026-08-22 04:39 639229703543969637
14 ms 199.7.91.13
15 2026-08-22 04:23 639229693970392873
15 ms 199.7.91.13
14 2026-08-22 04:07 639229684277329469
3 ms 199.7.91.13
13 2026-08-22 03:51 639229674501596661
15 ms 199.7.91.13
12 2026-08-22 03:35 639229665064441147
2 ms 199.7.91.13
11 2026-08-22 03:19 639229655507536872
10 ms 199.7.91.13
10 2026-08-22 03:03 639229645849603111
18 ms 199.7.91.13
9 2026-08-22 02:47 639229636090497453
57 ms 199.7.91.13
8 2026-08-22 02:30 639229625978544281
17 ms 199.7.91.13
7 2026-08-22 01:37 639229594644662176
28 ms 199.7.91.13
6 2026-08-22 01:22 639229585214633065
50 ms 199.7.91.13
5 2026-08-22 01:06 639229575581042175
15 ms 199.7.91.13
4 2026-08-22 00:50 639229565912268962
30 ms 199.7.91.13
3 2026-08-22 00:33 639229556237813203
3 ms 199.7.91.13
2 2026-08-22 00:17 639229546625802518
8 ms 199.7.91.13
1 2026-08-22 00:02 639229537172016621
2 ms 199.7.91.13