History for pe4.cotf.edu
Domain: cotf.edu • Tracking since 2026-08-04 23:25 UTC
DNS response history for pe4.cotf.edu
pe4.cotf.edu 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 332 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 pe4.cotf.edu.
Records on Selected Date
73
Historical checks stored for this nameserver on selected date
Average Latency
332 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-21 23:56
All timestamps shown in UTC
Latest Resolved IP on Selected Date
198.185.178.74
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 pe4.cotf.edu
Showing DNS history for 2026-08-21 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 |
|---|---|---|---|---|---|
| 73 | 2026-08-21 23:56 | 639229527598660841 |
|
- | |
| 72 | 2026-08-21 23:40 | 639229517954323214 |
|
126 ms | 198.185.178.74 |
| 71 | 2026-08-21 23:24 | 639229508269999021 |
|
3 ms | 198.185.178.74 |
| 70 | 2026-08-21 23:07 | 639229498559060171 |
|
229 ms | 198.185.178.74 |
| 69 | 2026-08-21 22:51 | 639229488519347586 |
|
2008 ms | 198.185.178.74 |
| 68 | 2026-08-21 21:57 | 639229456606578934 |
|
7 ms | 198.185.178.74 |
| 67 | 2026-08-21 21:41 | 639229446985772499 |
|
4 ms | 198.185.178.74 |
| 66 | 2026-08-21 21:25 | 639229437367313098 |
|
226 ms | 198.185.178.74 |
| 65 | 2026-08-21 21:09 | 639229427923950391 |
|
229 ms | 198.185.178.74 |
| 64 | 2026-08-21 20:53 | 639229418168588854 |
|
2105 ms | 198.185.178.74 |
| 63 | 2026-08-21 20:37 | 639229408345678334 |
|
9 ms | 198.185.178.74 |
| 62 | 2026-08-21 20:21 | 639229398616354648 |
|
222 ms | 198.185.178.74 |
| 61 | 2026-08-21 20:04 | 639229388634592323 |
|
228 ms | 198.185.178.74 |
| 60 | 2026-08-21 19:48 | 639229378792837692 |
|
233 ms | 198.185.178.74 |
| 59 | 2026-08-21 19:31 | 639229369154682311 |
|
231 ms | 198.185.178.74 |
| 58 | 2026-08-21 19:15 | 639229359248017926 |
|
102 ms | 198.185.178.74 |
| 57 | 2026-08-21 18:58 | 639229349124294642 |
|
233 ms | 198.185.178.74 |
| 56 | 2026-08-21 18:06 | 639229317791715692 |
|
110 ms | 198.185.178.74 |
| 55 | 2026-08-21 17:50 | 639229308115194575 |
|
26 ms | 198.185.178.74 |
| 54 | 2026-08-21 17:34 | 639229298320320558 |
|
109 ms | 198.185.178.74 |
| 53 | 2026-08-21 17:17 | 639229288674863221 |
|
233 ms | 198.185.178.74 |
| 52 | 2026-08-21 17:01 | 639229278983677079 |
|
235 ms | 198.185.178.74 |
| 51 | 2026-08-21 16:45 | 639229269405517175 |
|
127 ms | 198.185.178.74 |
| 50 | 2026-08-21 16:29 | 639229259594798244 |
|
9 ms | 198.185.178.74 |
| 49 | 2026-08-21 16:13 | 639229249736681188 |
|
226 ms | 198.185.178.74 |
| 48 | 2026-08-21 15:56 | 639229239699417787 |
|
110 ms | 198.185.178.74 |
| 47 | 2026-08-21 15:39 | 639229229621964033 |
|
5 ms | 198.185.178.74 |
| 46 | 2026-08-21 15:22 | 639229219567270965 |
|
231 ms | 198.185.178.74 |
| 45 | 2026-08-21 15:05 | 639229209406666856 |
|
231 ms | 198.185.178.74 |
| 44 | 2026-08-21 14:13 | 639229177815876178 |
|
3 ms | 198.185.178.74 |
| 43 | 2026-08-21 13:56 | 639229168243572685 |
|
229 ms | 198.185.178.74 |
| 42 | 2026-08-21 13:41 | 639229158599856475 |
|
229 ms | 198.185.178.74 |
| 41 | 2026-08-21 13:25 | 639229148998940902 |
|
6 ms | 198.185.178.74 |
| 40 | 2026-08-21 13:09 | 639229139276923594 |
|
4 ms | 198.185.178.74 |
| 39 | 2026-08-21 12:52 | 639229129709912394 |
|
7 ms | 198.185.178.74 |
| 38 | 2026-08-21 12:36 | 639229119801488500 |
|
146 ms | 198.185.178.74 |
| 37 | 2026-08-21 12:20 | 639229110135262458 |
|
232 ms | 198.185.178.74 |
| 36 | 2026-08-21 12:04 | 639229100336051392 |
|
7 ms | 198.185.178.74 |
| 35 | 2026-08-21 11:47 | 639229090641415626 |
|
240 ms | 198.185.178.74 |
| 34 | 2026-08-21 11:31 | 639229080702683947 |
|
4230 ms | 198.185.178.74 |
| 33 | 2026-08-21 11:14 | 639229070601456699 |
|
230 ms | 198.185.178.74 |
| 32 | 2026-08-21 10:21 | 639229038947447232 |
|
4 ms | 198.185.178.74 |
| 31 | 2026-08-21 10:05 | 639229029268708773 |
|
2105 ms | 198.185.178.74 |
| 30 | 2026-08-21 09:49 | 639229019647910603 |
|
232 ms | 198.185.178.74 |
| 29 | 2026-08-21 09:33 | 639229009983843738 |
|
229 ms | 198.185.178.74 |
| 28 | 2026-08-21 09:17 | 639229000203331882 |
|
7 ms | 198.185.178.74 |
| 27 | 2026-08-21 09:00 | 639228990302335999 |
|
230 ms | 198.185.178.74 |
| 26 | 2026-08-21 08:44 | 639228980567740722 |
|
253 ms | 198.185.178.74 |
| 25 | 2026-08-21 08:28 | 639228970762445174 |
|
635 ms | 198.185.178.74 |
| 24 | 2026-08-21 08:11 | 639228961065054445 |
|
3 ms | 198.185.178.74 |
| 23 | 2026-08-21 07:55 | 639228951224649885 |
|
12 ms | 198.185.178.74 |
| 22 | 2026-08-21 07:38 | 639228941303864592 |
|
228 ms | 198.185.178.74 |
| 21 | 2026-08-21 07:22 | 639228931191328583 |
|
5 ms | 198.185.178.74 |
| 20 | 2026-08-21 06:29 | 639228899518173317 |
|
226 ms | 198.185.178.74 |
| 19 | 2026-08-21 06:13 | 639228889785027669 |
|
224 ms | 198.185.178.74 |
| 18 | 2026-08-21 05:57 | 639228880106330161 |
|
225 ms | 198.185.178.74 |
| 17 | 2026-08-21 05:40 | 639228870316184091 |
|
108 ms | 198.185.178.74 |
| 16 | 2026-08-21 05:24 | 639228860695366512 |
|
227 ms | 198.185.178.74 |
| 15 | 2026-08-21 05:08 | 639228851027209500 |
|
137 ms | 198.185.178.74 |
| 14 | 2026-08-21 04:52 | 639228841479265462 |
|
232 ms | 198.185.178.74 |
| 13 | 2026-08-21 04:36 | 639228831752962260 |
|
120 ms | 198.185.178.74 |
| 12 | 2026-08-21 04:20 | 639228821953295483 |
|
227 ms | 198.185.178.74 |
| 11 | 2026-08-21 04:03 | 639228812227429953 |
|
21 ms | 198.185.178.74 |
| 10 | 2026-08-21 03:47 | 639228802476107538 |
|
2005 ms | 198.185.178.74 |
| 9 | 2026-08-21 03:31 | 639228792525492032 |
|
108 ms | 198.185.178.74 |
| 8 | 2026-08-21 02:38 | 639228761131421385 |
|
9 ms | 198.185.178.74 |
| 7 | 2026-08-21 02:22 | 639228751571206692 |
|
8 ms | 198.185.178.74 |
| 6 | 2026-08-21 02:06 | 639228741705571019 |
|
125 ms | 198.185.178.74 |
| 5 | 2026-08-21 01:49 | 639228731642208228 |
|
2101 ms | 198.185.178.74 |
| 4 | 2026-08-21 00:57 | 639228700387002072 |
|
226 ms | 198.185.178.74 |
| 3 | 2026-08-21 00:41 | 639228690742014433 |
|
3 ms | 198.185.178.74 |
| 2 | 2026-08-21 00:24 | 639228680877937122 |
|
10 ms | 198.185.178.74 |
| 1 | 2026-08-21 00:08 | 639228670775860800 |
|
229 ms | 198.185.178.74 |