DNS response history for z.nic.courses

z.nic.courses 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 2026-08-26. For this date, NameServerHistory found 56 DNS check records, 56 successful responses, 0 failed responses, and 76 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 z.nic.courses.
Records on Selected Date

56

Historical checks stored for this nameserver on selected date

Average Latency

76 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 18:30

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.174.82

Most recently resolved hosting IP on selected date

Successful Responses

56

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 z.nic.courses

Showing DNS history for 2026-08-26 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
56 2026-08-26 18:30 639233656814316266
27 ms 156.154.174.82
55 2026-08-26 18:12 639233646245051806
26 ms 156.154.174.82
54 2026-08-26 17:55 639233635663779051
27 ms 156.154.174.82
53 2026-08-26 17:37 639233624977342122
46 ms 156.154.174.82
52 2026-08-26 17:19 639233614446136153
9 ms 156.154.174.82
51 2026-08-26 17:02 639233603737877581
159 ms 156.154.174.82
50 2026-08-26 16:44 639233593269224651
49 ms 156.154.174.82
49 2026-08-26 16:26 639233582635086903
23 ms 156.154.174.82
48 2026-08-26 16:09 639233572000374575
24 ms 156.154.174.82
47 2026-08-26 15:51 639233561188633861
18 ms 156.154.174.82
46 2026-08-26 15:33 639233550544357027
50 ms 156.154.174.82
45 2026-08-26 14:39 639233517966053117
227 ms 156.154.174.82
44 2026-08-26 14:21 639233507603253585
29 ms 156.154.174.82
43 2026-08-26 14:04 639233497229039167
51 ms 156.154.174.82
42 2026-08-26 13:47 639233486864546406
20 ms 156.154.174.82
41 2026-08-26 13:30 639233476455174682
44 ms 156.154.174.82
40 2026-08-26 13:12 639233466171592605
23 ms 156.154.174.82
39 2026-08-26 12:55 639233455747096265
51 ms 156.154.174.82
38 2026-08-26 12:38 639233445367152284
16 ms 156.154.174.82
37 2026-08-26 12:20 639233434974187439
36 ms 156.154.174.82
36 2026-08-26 12:03 639233424567558554
11 ms 156.154.174.82
35 2026-08-26 11:45 639233414056832719
18 ms 156.154.174.82
34 2026-08-26 11:28 639233403515141099
26 ms 156.154.174.82
33 2026-08-26 10:33 639233370841350248
34 ms 156.154.174.82
32 2026-08-26 10:16 639233360361507238
36 ms 156.154.174.82
31 2026-08-26 09:59 639233350067824371
11 ms 156.154.174.82
30 2026-08-26 09:41 639233339545274518
128 ms 156.154.174.82
29 2026-08-26 09:24 639233329214918079
16 ms 156.154.174.82
28 2026-08-26 09:07 639233318749762337
76 ms 156.154.174.82
27 2026-08-26 08:49 639233308387917838
27 ms 156.154.174.82
26 2026-08-26 08:32 639233297961740122
25 ms 156.154.174.82
25 2026-08-26 08:15 639233287487159094
51 ms 156.154.174.82
24 2026-08-26 07:57 639233276995531707
36 ms 156.154.174.82
23 2026-08-26 07:40 639233266521568229
94 ms 156.154.174.82
22 2026-08-26 07:22 639233256081047431
57 ms 156.154.174.82
21 2026-08-26 06:28 639233223620132921
167 ms 156.154.174.82
20 2026-08-26 06:11 639233213287814244
15 ms 156.154.174.82
19 2026-08-26 05:54 639233202925983161
24 ms 156.154.174.82
18 2026-08-26 05:36 639233192644780696
14 ms 156.154.174.82
17 2026-08-26 05:19 639233182401183833
30 ms 156.154.174.82
16 2026-08-26 05:02 639233172074181051
27 ms 156.154.174.82
15 2026-08-26 04:45 639233161808421455
2023 ms 156.154.174.82
14 2026-08-26 04:28 639233151357344052
51 ms 156.154.174.82
13 2026-08-26 04:10 639233141034116946
10 ms 156.154.174.82
12 2026-08-26 03:53 639233130828334142
9 ms 156.154.174.82
11 2026-08-26 03:36 639233120373450007
19 ms 156.154.174.82
10 2026-08-26 03:19 639233110066216193
50 ms 156.154.174.82
9 2026-08-26 02:25 639233078065410564
50 ms 156.154.174.82
8 2026-08-26 02:08 639233067787457832
17 ms 156.154.174.82
7 2026-08-26 01:51 639233057501801162
35 ms 156.154.174.82
6 2026-08-26 01:34 639233047089431703
11 ms 156.154.174.82
5 2026-08-26 01:17 639233036754790688
27 ms 156.154.174.82
4 2026-08-26 00:59 639233026412602472
42 ms 156.154.174.82
3 2026-08-26 00:42 639233016064066127
26 ms 156.154.174.82
2 2026-08-26 00:25 639233005922655772
25 ms 156.154.174.82
1 2026-08-26 00:08 639232995672256907
11 ms 156.154.174.82