Name Server Status | ns1.protohackers.com DNS Response History

Name: DNS nameserver history dataset for ns1.protohackers.com
Creator: NameServerHistory

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 2026-08-23. For this date, NameServerHistory found 75 DNS check records, 73 successful responses, 2 failed responses, and 289 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

75

Historical checks stored for this nameserver on selected date

Average Latency

289 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-23 23:47

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

73

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 ns1.protohackers.com

Showing DNS history for 2026-08-23 UTC. Newest records appear first.

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

#	Query Time (UTC)	Correlation ID	Response	IP Address
75	2026-08-23 23:47	639231254406598736	43 ms	85.119.83.109
74	2026-08-23 23:31	639231244697865594	43 ms	85.119.83.109
73	2026-08-23 23:15	639231234893504693	2050 ms	85.119.83.109
72	2026-08-23 22:58	639231225024549139	47 ms	85.119.83.109
71	2026-08-23 22:41	639231214931957622	46 ms	85.119.83.109
70	2026-08-23 22:25	639231204962010549	67 ms	85.119.83.109
69	2026-08-23 22:08	639231195170138463	8 ms	85.119.83.109
68	2026-08-23 21:52	639231185235020577	7 ms	85.119.83.109
67	2026-08-23 21:36	639231175558690075	32 ms	85.119.83.109
66	2026-08-23 21:19	639231165610444012	63 ms	85.119.83.109
65	2026-08-23 20:26	639231133806425363	41 ms	85.119.83.109
64	2026-08-23 20:10	639231124203758023	51 ms	85.119.83.109
63	2026-08-23 19:54	639231114428262706	76 ms	85.119.83.109
62	2026-08-23 19:37	639231104662480065	7 ms	85.119.83.109
61	2026-08-23 19:21	639231094840372018	34 ms	85.119.83.109
60	2026-08-23 19:05	639231085024583224	47 ms	85.119.83.109
59	2026-08-23 18:48	639231075257417427	7 ms	85.119.83.109
58	2026-08-23 18:32	639231065516009503	78 ms	85.119.83.109
57	2026-08-23 18:16	639231055805348837	92 ms	85.119.83.109
56	2026-08-23 18:00	639231045980373765	8 ms	85.119.83.109
55	2026-08-23 17:43	639231035984577527	25 ms	85.119.83.109
54	2026-08-23 17:26	639231025928115303	60 ms	85.119.83.109
53	2026-08-23 16:34	639230994250157583	6 ms	85.119.83.109
52	2026-08-23 16:17	639230984476411369	31 ms	85.119.83.109
51	2026-08-23 16:01	639230974838373450	43 ms	85.119.83.109
50	2026-08-23 15:45	639230965244277645	42 ms	85.119.83.109
49	2026-08-23 15:29	639230955522101820	85 ms	85.119.83.109
48	2026-08-23 15:13	639230945754521603	7 ms	85.119.83.109
47	2026-08-23 14:56	639230935852040504	8 ms	85.119.83.109
46	2026-08-23 14:40	639230926222061048	11 ms	85.119.83.109
45	2026-08-23 14:24	639230916449726907	69 ms	85.119.83.109
44	2026-08-23 14:07	639230906595053086	83 ms	85.119.83.109
43	2026-08-23 13:51	639230896680429441	29 ms	85.119.83.109
42	2026-08-23 13:34	639230886630210965	25 ms	85.119.83.109
41	2026-08-23 12:42	639230855430405719	46 ms	85.119.83.109
40	2026-08-23 12:26	639230845707499136	54 ms	85.119.83.109
39	2026-08-23 12:10	639230836186805419	30 ms	85.119.83.109
38	2026-08-23 11:54	639230826493828316	89 ms	85.119.83.109
37	2026-08-23 11:38	639230816817882996	19 ms	85.119.83.109
36	2026-08-23 11:21	639230806933854189	55 ms	85.119.83.109
35	2026-08-23 11:05	639230797120243854	2141 ms	85.119.83.109
34	2026-08-23 10:49	639230787310272840	92 ms	85.119.83.109
33	2026-08-23 10:32	639230777600173142	29 ms	85.119.83.109
32	2026-08-23 10:16	639230767665024593	2036 ms	85.119.83.109
31	2026-08-23 09:59	639230757720962293	23 ms	85.119.83.109
30	2026-08-23 09:43	639230747722189784	54 ms	85.119.83.109
29	2026-08-23 08:50	639230716313923480	4037 ms	85.119.83.109
28	2026-08-23 08:34	639230706813835990	2040 ms	85.119.83.109
27	2026-08-23 08:18	639230696871062203	52 ms	85.119.83.109
26	2026-08-23 08:02	639230687142781616	76 ms	85.119.83.109
25	2026-08-23 07:46	639230677432142227	51 ms	85.119.83.109
24	2026-08-23 07:29	639230667686258061	46 ms	85.119.83.109
23	2026-08-23 07:13	639230658039243685	2057 ms	85.119.83.109
22	2026-08-23 06:57	639230648468473803	4 ms	85.119.83.109
21	2026-08-23 06:41	639230638829658294	43 ms	85.119.83.109
20	2026-08-23 06:25	639230629247017617	23 ms	85.119.83.109
19	2026-08-23 06:09	639230619625318239	77 ms	85.119.83.109
18	2026-08-23 05:53	639230609697630264		-
17	2026-08-23 05:01	639230578570131864	57 ms	85.119.83.109
16	2026-08-23 04:45	639230568958963168	43 ms	85.119.83.109
15	2026-08-23 04:29	639230559287611211	2028 ms	85.119.83.109
14	2026-08-23 04:12	639230549524312030	2053 ms	85.119.83.109
13	2026-08-23 03:56	639230539739801669	33 ms	85.119.83.109
12	2026-08-23 03:40	639230530084069375	43 ms	85.119.83.109
11	2026-08-23 03:24	639230520362691441	51 ms	85.119.83.109
10	2026-08-23 03:08	639230510677194518	44 ms	85.119.83.109
9	2026-08-23 02:52	639230501156002646	60 ms	85.119.83.109
8	2026-08-23 02:36	639230491502198541	27 ms	85.119.83.109
7	2026-08-23 02:20	639230481860318494		-
6	2026-08-23 02:03	639230471893008575	23 ms	85.119.83.109
5	2026-08-23 01:10	639230440030877421	3 ms	85.119.83.109
4	2026-08-23 00:54	639230430479725508	3 ms	85.119.83.109
3	2026-08-23 00:38	639230420875160219	2 ms	85.119.83.109
2	2026-08-23 00:22	639230411240692575	45 ms	85.119.83.109
1	2026-08-23 00:06	639230401550806607	42 ms	85.119.83.109