History for ns1.protohackers.com

Domain: protohackers.com • Tracking since 2026-08-04 23:25 UTC

DNS response history for ns1.protohackers.com

ns1.protohackers.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 2026-08-21. For this date, NameServerHistory found 73 DNS check records, 72 successful responses, 1 failed responses, and 208 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.protohackers.com.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

208 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:49

All timestamps shown in UTC

Latest Resolved IP on Selected Date

85.119.83.109

Most recently resolved hosting IP on selected date

Successful Responses

72

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

1%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns1.protohackers.com

Showing DNS history for 2026-08-21 UTC. Newest records appear first.

Today Previous Next

Latency bars are scaled to a maximum of 5000 ms for quick visual comparison.

# Query Time (UTC) Correlation ID Latency Response IP Address
73 2026-08-21 23:49 639229527598660841
78 ms 85.119.83.109
72 2026-08-21 23:33 639229517954323214
2029 ms 85.119.83.109
71 2026-08-21 23:17 639229508269999021
50 ms 85.119.83.109
70 2026-08-21 23:01 639229498559060171
47 ms 85.119.83.109
69 2026-08-21 22:44 639229488519347586
13 ms 85.119.83.109
68 2026-08-21 21:51 639229456606578934
-
67 2026-08-21 21:35 639229446985772499
3 ms 85.119.83.109
66 2026-08-21 21:19 639229437367313098
40 ms 85.119.83.109
65 2026-08-21 21:03 639229427923950391
8 ms 85.119.83.109
64 2026-08-21 20:47 639229418168588854
116 ms 85.119.83.109
63 2026-08-21 20:30 639229408345678334
47 ms 85.119.83.109
62 2026-08-21 20:14 639229398616354648
31 ms 85.119.83.109
61 2026-08-21 19:58 639229388634592323
40 ms 85.119.83.109
60 2026-08-21 19:41 639229378792837692
47 ms 85.119.83.109
59 2026-08-21 19:25 639229369154682311
56 ms 85.119.83.109
58 2026-08-21 19:08 639229359248017926
14 ms 85.119.83.109
57 2026-08-21 18:52 639229349124294642
152 ms 85.119.83.109
56 2026-08-21 17:59 639229317791715692
17 ms 85.119.83.109
55 2026-08-21 17:43 639229308115194575
2037 ms 85.119.83.109
54 2026-08-21 17:27 639229298320320558
50 ms 85.119.83.109
53 2026-08-21 17:11 639229288674863221
66 ms 85.119.83.109
52 2026-08-21 16:55 639229278983677079
4 ms 85.119.83.109
51 2026-08-21 16:39 639229269405517175
40 ms 85.119.83.109
50 2026-08-21 16:22 639229259594798244
18 ms 85.119.83.109
49 2026-08-21 16:06 639229249736681188
8 ms 85.119.83.109
48 2026-08-21 15:49 639229239699417787
6 ms 85.119.83.109
47 2026-08-21 15:32 639229229621964033
44 ms 85.119.83.109
46 2026-08-21 15:16 639229219567270965
131 ms 85.119.83.109
45 2026-08-21 14:59 639229209406666856
2 ms 85.119.83.109
44 2026-08-21 14:06 639229177815876178
12 ms 85.119.83.109
43 2026-08-21 13:50 639229168243572685
3 ms 85.119.83.109
42 2026-08-21 13:34 639229158599856475
80 ms 85.119.83.109
41 2026-08-21 13:18 639229148998940902
74 ms 85.119.83.109
40 2026-08-21 13:02 639229139276923594
73 ms 85.119.83.109
39 2026-08-21 12:46 639229129709912394
25 ms 85.119.83.109
38 2026-08-21 12:29 639229119801488500
75 ms 85.119.83.109
37 2026-08-21 12:13 639229110135262458
73 ms 85.119.83.109
36 2026-08-21 11:57 639229100336051392
6 ms 85.119.83.109
35 2026-08-21 11:41 639229090641415626
76 ms 85.119.83.109
34 2026-08-21 11:24 639229080702683947
4 ms 85.119.83.109
33 2026-08-21 11:07 639229070601456699
6 ms 85.119.83.109
32 2026-08-21 10:15 639229038947447232
43 ms 85.119.83.109
31 2026-08-21 09:58 639229029268708773
57 ms 85.119.83.109
30 2026-08-21 09:43 639229019647910603
54 ms 85.119.83.109
29 2026-08-21 09:26 639229009983843738
77 ms 85.119.83.109
28 2026-08-21 09:10 639229000203331882
8 ms 85.119.83.109
27 2026-08-21 08:54 639228990302335999
55 ms 85.119.83.109
26 2026-08-21 08:37 639228980567740722
2015 ms 85.119.83.109
25 2026-08-21 08:21 639228970762445174
72 ms 85.119.83.109
24 2026-08-21 08:05 639228961065054445
48 ms 85.119.83.109
23 2026-08-21 07:49 639228951224649885
59 ms 85.119.83.109
22 2026-08-21 07:32 639228941303864592
2025 ms 85.119.83.109
21 2026-08-21 07:15 639228931191328583
31 ms 85.119.83.109
20 2026-08-21 06:22 639228899518173317
47 ms 85.119.83.109
19 2026-08-21 06:06 639228889785027669
29 ms 85.119.83.109
18 2026-08-21 05:50 639228880106330161
29 ms 85.119.83.109
17 2026-08-21 05:34 639228870316184091
39 ms 85.119.83.109
16 2026-08-21 05:18 639228860695366512
25 ms 85.119.83.109
15 2026-08-21 05:02 639228851027209500
49 ms 85.119.83.109
14 2026-08-21 04:46 639228841479265462
59 ms 85.119.83.109
13 2026-08-21 04:29 639228831752962260
2039 ms 85.119.83.109
12 2026-08-21 04:13 639228821953295483
60 ms 85.119.83.109
11 2026-08-21 03:57 639228812227429953
77 ms 85.119.83.109
10 2026-08-21 03:41 639228802476107538
9 ms 85.119.83.109
9 2026-08-21 03:24 639228792525492032
8 ms 85.119.83.109
8 2026-08-21 02:32 639228761131421385
43 ms 85.119.83.109
7 2026-08-21 02:16 639228751571206692
32 ms 85.119.83.109
6 2026-08-21 01:59 639228741705571019
8 ms 85.119.83.109
5 2026-08-21 01:42 639228731642208228
3 ms 85.119.83.109
4 2026-08-21 00:50 639228700387002072
43 ms 85.119.83.109
3 2026-08-21 00:34 639228690742014433
2084 ms 85.119.83.109
2 2026-08-21 00:18 639228680877937122
44 ms 85.119.83.109
1 2026-08-21 00:01 639228670775860800
27 ms 85.119.83.109