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 2026-08-12. For this date, NameServerHistory found 62 DNS check records, 61 successful responses, 1 failed responses, and 253 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

62

Historical checks stored for this nameserver on selected date

Average Latency

253 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-12 23:50

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

61

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 d.root-servers.net

Showing DNS history for 2026-08-12 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
62 2026-08-12 23:50 639221753022017039
41 ms 199.7.91.13
61 2026-08-12 23:35 639221744107644868
16 ms 199.7.91.13
60 2026-08-12 23:20 639221735030187244
30 ms 199.7.91.13
59 2026-08-12 23:05 639221725815508109
2 ms 199.7.91.13
58 2026-08-12 22:12 639221694790955973
21 ms 199.7.91.13
57 2026-08-12 21:57 639221685562451720
29 ms 199.7.91.13
56 2026-08-12 21:41 639221676023655289
23 ms 199.7.91.13
55 2026-08-12 21:25 639221666449119409
20 ms 199.7.91.13
54 2026-08-12 20:33 639221635456432556
2042 ms 199.7.91.13
53 2026-08-12 20:18 639221626313054202
-
52 2026-08-12 20:03 639221617091958857
8 ms 199.7.91.13
51 2026-08-12 19:47 639221607786737151
3 ms 199.7.91.13
50 2026-08-12 18:55 639221576664330059
2083 ms 199.7.91.13
49 2026-08-12 18:40 639221567514216674
3 ms 199.7.91.13
48 2026-08-12 18:25 639221558399762524
5 ms 199.7.91.13
47 2026-08-12 18:09 639221549052016282
20 ms 199.7.91.13
46 2026-08-12 17:17 639221517673834934
18 ms 199.7.91.13
45 2026-08-12 17:01 639221508282311633
2010 ms 199.7.91.13
44 2026-08-12 16:45 639221498786324983
2 ms 199.7.91.13
43 2026-08-12 16:29 639221489157589737
34 ms 199.7.91.13
42 2026-08-12 15:37 639221457655914645
71 ms 199.7.91.13
41 2026-08-12 15:21 639221448164090526
3 ms 199.7.91.13
40 2026-08-12 15:05 639221438725783630
8 ms 199.7.91.13
39 2026-08-12 14:49 639221429178071087
18 ms 199.7.91.13
38 2026-08-12 13:57 639221397761278719
6 ms 199.7.91.13
37 2026-08-12 13:41 639221388200567278
15 ms 199.7.91.13
36 2026-08-12 13:25 639221378483570949
4 ms 199.7.91.13
35 2026-08-12 13:09 639221368872360139
4 ms 199.7.91.13
34 2026-08-12 12:17 639221337226647415
4 ms 199.7.91.13
33 2026-08-12 12:01 639221327924087446
44 ms 199.7.91.13
32 2026-08-12 11:45 639221318096976375
36 ms 199.7.91.13
31 2026-08-12 11:28 639221308343145274
13 ms 199.7.91.13
30 2026-08-12 10:36 639221277089610470
19 ms 199.7.91.13
29 2026-08-12 10:21 639221267628136359
2 ms 199.7.91.13
28 2026-08-12 10:04 639221257907569952
33 ms 199.7.91.13
27 2026-08-12 09:49 639221248402420965
31 ms 199.7.91.13
26 2026-08-12 08:56 639221216797540533
44 ms 199.7.91.13
25 2026-08-12 08:40 639221207385792352
22 ms 199.7.91.13
24 2026-08-12 08:25 639221198078534844
42 ms 199.7.91.13
23 2026-08-12 08:09 639221188677585577
14 ms 199.7.91.13
22 2026-08-12 07:17 639221157276484143
6 ms 199.7.91.13
21 2026-08-12 07:02 639221147876262183
3 ms 199.7.91.13
20 2026-08-12 06:46 639221138388812469
19 ms 199.7.91.13
19 2026-08-12 06:30 639221128987381118
23 ms 199.7.91.13
18 2026-08-12 05:38 639221097816416095
30 ms 199.7.91.13
17 2026-08-12 05:23 639221088508065616
28 ms 199.7.91.13
16 2026-08-12 05:07 639221079092308503
19 ms 199.7.91.13
15 2026-08-12 04:51 639221069595873597
4 ms 199.7.91.13
14 2026-08-12 03:59 639221038601577496
3 ms 199.7.91.13
13 2026-08-12 03:44 639221029533901299
42 ms 199.7.91.13
12 2026-08-12 03:29 639221020333828965
4 ms 199.7.91.13
11 2026-08-12 03:14 639221011110510484
39 ms 199.7.91.13
10 2026-08-12 02:21 639220979815209769
48 ms 199.7.91.13
9 2026-08-12 02:06 639220970971410921
2013 ms 199.7.91.13
8 2026-08-12 01:51 639220961848982361
2046 ms 199.7.91.13
7 2026-08-12 01:36 639220952784591501
5 ms 199.7.91.13
6 2026-08-12 01:21 639220943893596731
2071 ms 199.7.91.13
5 2026-08-12 01:06 639220934954704520
43 ms 199.7.91.13
4 2026-08-12 00:51 639220925792457751
62 ms 199.7.91.13
3 2026-08-12 00:35 639220916610063538
5 ms 199.7.91.13
2 2026-08-12 00:20 639220907229361754
2040 ms 199.7.91.13
1 2026-08-12 00:04 639220897896762127
31 ms 199.7.91.13