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 2026-08-19. For this date, NameServerHistory found 74 DNS check records, 74 successful responses, 0 failed responses, and 441 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
74
Historical checks stored for this nameserver on selected date
Average Latency
441 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-19 23:49
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
74
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 pe4.cotf.edu
Showing DNS history for 2026-08-19 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 |
|---|---|---|---|---|---|
| 74 | 2026-08-19 23:49 | 639227795899225951 |
|
232 ms | 198.185.178.74 |
| 73 | 2026-08-19 23:33 | 639227786351762008 |
|
239 ms | 198.185.178.74 |
| 72 | 2026-08-19 23:18 | 639227776640591733 |
|
139 ms | 198.185.178.74 |
| 71 | 2026-08-19 23:01 | 639227767128841282 |
|
13 ms | 198.185.178.74 |
| 70 | 2026-08-19 22:45 | 639227757477304711 |
|
2010 ms | 198.185.178.74 |
| 69 | 2026-08-19 22:29 | 639227747572098014 |
|
114 ms | 198.185.178.74 |
| 68 | 2026-08-19 22:12 | 639227737588613113 |
|
23 ms | 198.185.178.74 |
| 67 | 2026-08-19 21:20 | 639227706134603955 |
|
3 ms | 198.185.178.74 |
| 66 | 2026-08-19 21:04 | 639227696589027396 |
|
246 ms | 198.185.178.74 |
| 65 | 2026-08-19 20:48 | 639227687097707639 |
|
246 ms | 198.185.178.74 |
| 64 | 2026-08-19 20:32 | 639227677474464487 |
|
231 ms | 198.185.178.74 |
| 63 | 2026-08-19 20:16 | 639227667767441118 |
|
4 ms | 198.185.178.74 |
| 62 | 2026-08-19 20:00 | 639227657984833832 |
|
233 ms | 198.185.178.74 |
| 61 | 2026-08-19 19:43 | 639227648079992640 |
|
230 ms | 198.185.178.74 |
| 60 | 2026-08-19 19:27 | 639227638125048441 |
|
229 ms | 198.185.178.74 |
| 59 | 2026-08-19 19:10 | 639227628211392142 |
|
108 ms | 198.185.178.74 |
| 58 | 2026-08-19 18:53 | 639227618261696275 |
|
241 ms | 198.185.178.74 |
| 57 | 2026-08-19 18:37 | 639227608366233645 |
|
232 ms | 198.185.178.74 |
| 56 | 2026-08-19 18:20 | 639227598301787588 |
|
232 ms | 198.185.178.74 |
| 55 | 2026-08-19 17:27 | 639227566241010716 |
|
2132 ms | 198.185.178.74 |
| 54 | 2026-08-19 17:10 | 639227556454538959 |
|
232 ms | 198.185.178.74 |
| 53 | 2026-08-19 16:54 | 639227546640305542 |
|
11 ms | 198.185.178.74 |
| 52 | 2026-08-19 16:38 | 639227536965466472 |
|
2 ms | 198.185.178.74 |
| 51 | 2026-08-19 16:21 | 639227527048658280 |
|
236 ms | 198.185.178.74 |
| 50 | 2026-08-19 16:05 | 639227517386634438 |
|
3 ms | 198.185.178.74 |
| 49 | 2026-08-19 15:49 | 639227507459551637 |
|
3 ms | 198.185.178.74 |
| 48 | 2026-08-19 15:32 | 639227497515595277 |
|
4 ms | 198.185.178.74 |
| 47 | 2026-08-19 15:15 | 639227487441798036 |
|
230 ms | 198.185.178.74 |
| 46 | 2026-08-19 14:59 | 639227477445551863 |
|
227 ms | 198.185.178.74 |
| 45 | 2026-08-19 14:42 | 639227467297067891 |
|
248 ms | 198.185.178.74 |
| 44 | 2026-08-19 14:25 | 639227457057795635 |
|
125 ms | 198.185.178.74 |
| 43 | 2026-08-19 13:32 | 639227425244777397 |
|
230 ms | 198.185.178.74 |
| 42 | 2026-08-19 13:15 | 639227415422116485 |
|
232 ms | 198.185.178.74 |
| 41 | 2026-08-19 12:58 | 639227405307256053 |
|
240 ms | 198.185.178.74 |
| 40 | 2026-08-19 12:42 | 639227395396602630 |
|
255 ms | 198.185.178.74 |
| 39 | 2026-08-19 12:25 | 639227385510363611 |
|
170 ms | 198.185.178.74 |
| 38 | 2026-08-19 12:09 | 639227375508324850 |
|
230 ms | 198.185.178.74 |
| 37 | 2026-08-19 11:52 | 639227365326611906 |
|
229 ms | 198.185.178.74 |
| 36 | 2026-08-19 11:35 | 639227355360014208 |
|
2108 ms | 198.185.178.74 |
| 35 | 2026-08-19 11:18 | 639227345036782165 |
|
2110 ms | 198.185.178.74 |
| 34 | 2026-08-19 11:01 | 639227334992964533 |
|
239 ms | 198.185.178.74 |
| 33 | 2026-08-19 10:45 | 639227324986605572 |
|
230 ms | 198.185.178.74 |
| 32 | 2026-08-19 10:28 | 639227314928414539 |
|
236 ms | 198.185.178.74 |
| 31 | 2026-08-19 09:34 | 639227283029182134 |
|
231 ms | 198.185.178.74 |
| 30 | 2026-08-19 09:18 | 639227273294779350 |
|
2117 ms | 198.185.178.74 |
| 29 | 2026-08-19 09:02 | 639227263525231313 |
|
228 ms | 198.185.178.74 |
| 28 | 2026-08-19 08:46 | 639227253578313363 |
|
254 ms | 198.185.178.74 |
| 27 | 2026-08-19 08:29 | 639227243649973322 |
|
232 ms | 198.185.178.74 |
| 26 | 2026-08-19 08:12 | 639227233581059317 |
|
9 ms | 198.185.178.74 |
| 25 | 2026-08-19 07:56 | 639227223667352067 |
|
236 ms | 198.185.178.74 |
| 24 | 2026-08-19 07:39 | 639227213714837066 |
|
233 ms | 198.185.178.74 |
| 23 | 2026-08-19 07:22 | 639227203701208496 |
|
122 ms | 198.185.178.74 |
| 22 | 2026-08-19 07:06 | 639227193643202179 |
|
245 ms | 198.185.178.74 |
| 21 | 2026-08-19 06:49 | 639227183584431597 |
|
233 ms | 198.185.178.74 |
| 20 | 2026-08-19 06:32 | 639227173347403088 |
|
239 ms | 198.185.178.74 |
| 19 | 2026-08-19 05:39 | 639227141523007601 |
|
22 ms | 198.185.178.74 |
| 18 | 2026-08-19 05:23 | 639227131785931574 |
|
229 ms | 198.185.178.74 |
| 17 | 2026-08-19 05:06 | 639227122176475389 |
|
243 ms | 198.185.178.74 |
| 16 | 2026-08-19 04:50 | 639227112668934596 |
|
2110 ms | 198.185.178.74 |
| 15 | 2026-08-19 04:34 | 639227102773292788 |
|
231 ms | 198.185.178.74 |
| 14 | 2026-08-19 04:18 | 639227093141136930 |
|
8 ms | 198.185.178.74 |
| 13 | 2026-08-19 04:02 | 639227083449420147 |
|
232 ms | 198.185.178.74 |
| 12 | 2026-08-19 03:46 | 639227073771748493 |
|
230 ms | 198.185.178.74 |
| 11 | 2026-08-19 03:30 | 639227063977347614 |
|
7 ms | 198.185.178.74 |
| 10 | 2026-08-19 03:13 | 639227054253519024 |
|
235 ms | 198.185.178.74 |
| 9 | 2026-08-19 02:57 | 639227044381963886 |
|
232 ms | 198.185.178.74 |
| 8 | 2026-08-19 02:40 | 639227034441085514 |
|
230 ms | 198.185.178.74 |
| 7 | 2026-08-19 01:48 | 639227003126489968 |
|
248 ms | 198.185.178.74 |
| 6 | 2026-08-19 01:32 | 639226993456311614 |
|
2007 ms | 198.185.178.74 |
| 5 | 2026-08-19 01:16 | 639226983847312345 |
|
4230 ms | 198.185.178.74 |
| 4 | 2026-08-19 01:00 | 639226974357874853 |
|
236 ms | 198.185.178.74 |
| 3 | 2026-08-19 00:44 | 639226964670484721 |
|
2109 ms | 198.185.178.74 |
| 2 | 2026-08-19 00:28 | 639226954857899696 |
|
230 ms | 198.185.178.74 |
| 1 | 2026-08-19 00:11 | 639226945091603488 |
|
231 ms | 198.185.178.74 |