DNS response history for ns1.robertdoerr.org

ns1.robertdoerr.org 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 2026-08-20. For this date, NameServerHistory found 57 DNS check records, 57 successful responses, 0 failed responses, and 409 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 ns1.robertdoerr.org.
Records on Selected Date

57

Historical checks stored for this nameserver on selected date

Average Latency

409 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-20 23:59

All timestamps shown in UTC

Latest Resolved IP on Selected Date

91.134.25.122

Most recently resolved hosting IP on selected date

Successful Responses

57

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 ns1.robertdoerr.org

Showing DNS history for 2026-08-20 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
57 2026-08-20 23:59 639228670775860800
20 ms 91.134.25.122
56 2026-08-20 23:07 639228639850033448
25 ms 91.134.25.122
55 2026-08-20 22:51 639228630204271870
46 ms 91.134.25.122
54 2026-08-20 22:35 639228620295091135
116 ms 91.134.25.122
53 2026-08-20 22:18 639228610298336915
2176 ms 91.134.25.122
52 2026-08-20 21:26 639228578917047616
58 ms 91.134.25.122
51 2026-08-20 21:09 639228569046445709
38 ms 91.134.25.122
50 2026-08-20 20:53 639228558946830986
2039 ms 91.134.25.122
49 2026-08-20 20:36 639228548977359217
65 ms 91.134.25.122
48 2026-08-20 19:43 639228517494157668
21 ms 91.134.25.122
47 2026-08-20 19:27 639228507374116892
41 ms 91.134.25.122
46 2026-08-20 19:10 639228497315154893
47 ms 91.134.25.122
45 2026-08-20 18:53 639228487287648341
58 ms 91.134.25.122
44 2026-08-20 18:01 639228455828123788
54 ms 91.134.25.122
43 2026-08-20 17:44 639228445900082244
47 ms 91.134.25.122
42 2026-08-20 17:27 639228435866352323
47 ms 91.134.25.122
41 2026-08-20 17:11 639228425802273151
2019 ms 91.134.25.122
40 2026-08-20 16:17 639228393616324230
47 ms 91.134.25.122
39 2026-08-20 16:00 639228383590408693
26 ms 91.134.25.122
38 2026-08-20 15:43 639228373471467474
20 ms 91.134.25.122
37 2026-08-20 15:27 639228363426647311
184 ms 91.134.25.122
36 2026-08-20 14:34 639228331681701910
37 ms 91.134.25.122
35 2026-08-20 14:17 639228321714746824
51 ms 91.134.25.122
34 2026-08-20 14:00 639228311652090262
53 ms 91.134.25.122
33 2026-08-20 13:44 639228301670088587
5 ms 91.134.25.122
32 2026-08-20 12:51 639228269987976710
51 ms 91.134.25.122
31 2026-08-20 12:34 639228260009452308
105 ms 91.134.25.122
30 2026-08-20 12:17 639228249661740894
38 ms 91.134.25.122
29 2026-08-20 12:00 639228239552680346
5 ms 91.134.25.122
28 2026-08-20 11:07 639228207667580819
2043 ms 91.134.25.122
27 2026-08-20 10:50 639228197494011560
85 ms 91.134.25.122
26 2026-08-20 10:33 639228187497039939
48 ms 91.134.25.122
25 2026-08-20 10:17 639228177408432646
106 ms 91.134.25.122
24 2026-08-20 09:25 639228146356166262
19 ms 91.134.25.122
23 2026-08-20 09:08 639228136541505712
39 ms 91.134.25.122
22 2026-08-20 08:52 639228126519136598
43 ms 91.134.25.122
21 2026-08-20 08:35 639228116537148885
65 ms 91.134.25.122
20 2026-08-20 07:43 639228085320764351
4028 ms 91.134.25.122
19 2026-08-20 07:27 639228075444604839
2115 ms 91.134.25.122
18 2026-08-20 07:10 639228065615498985
11 ms 91.134.25.122
17 2026-08-20 06:54 639228055675321422
46 ms 91.134.25.122
16 2026-08-20 06:01 639228024230839396
12 ms 91.134.25.122
15 2026-08-20 05:45 639228014720406505
2042 ms 91.134.25.122
14 2026-08-20 05:29 639228004930827030
55 ms 91.134.25.122
13 2026-08-20 05:13 639227995103340154
2164 ms 91.134.25.122
12 2026-08-20 04:21 639227963811374894
44 ms 91.134.25.122
11 2026-08-20 04:04 639227954132571365
100 ms 91.134.25.122
10 2026-08-20 03:48 639227944541208342
266 ms 91.134.25.122
9 2026-08-20 03:32 639227934657213484
7 ms 91.134.25.122
8 2026-08-20 02:40 639227903628145469
67 ms 91.134.25.122
7 2026-08-20 02:24 639227893995483475
2040 ms 91.134.25.122
6 2026-08-20 02:08 639227884280244209
53 ms 91.134.25.122
5 2026-08-20 01:51 639227874371147132
109 ms 91.134.25.122
4 2026-08-20 01:00 639227843224256432
23 ms 91.134.25.122
3 2026-08-20 00:44 639227833720403506
88 ms 91.134.25.122
2 2026-08-20 00:28 639227824170728278
21 ms 91.134.25.122
1 2026-08-20 00:12 639227814865867570
46 ms 91.134.25.122