History for dns2.si.umich.edu
Domain: umich.edu • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns2.si.umich.edu
dns2.si.umich.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 2026-08-24. For this date, NameServerHistory found 45 DNS check records, 45 successful responses, 0 failed responses, and 643 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 dns2.si.umich.edu.
Records on Selected Date
45
Historical checks stored for this nameserver on selected date
Average Latency
643 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-24 19:03
All timestamps shown in UTC
Latest Resolved IP on Selected Date
54.164.55.152
Most recently resolved hosting IP on selected date
Successful Responses
45
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 dns2.si.umich.edu
Showing DNS history for 2026-08-24 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 |
|---|---|---|---|---|---|
| 45 | 2026-08-24 19:03 | 639231942277816756 |
|
116 ms | 54.164.55.152 |
| 44 | 2026-08-24 18:46 | 639231932094180724 |
|
128 ms | 54.164.55.152 |
| 43 | 2026-08-24 18:29 | 639231922041034838 |
|
354 ms | 54.164.55.152 |
| 42 | 2026-08-24 17:36 | 639231890488117536 |
|
513 ms | 54.164.55.152 |
| 41 | 2026-08-24 17:20 | 639231880574255543 |
|
453 ms | 54.164.55.152 |
| 40 | 2026-08-24 17:03 | 639231870418029045 |
|
2519 ms | 54.164.55.152 |
| 39 | 2026-08-24 16:46 | 639231860258429562 |
|
92 ms | 54.164.55.152 |
| 38 | 2026-08-24 15:53 | 639231828211839931 |
|
323 ms | 54.164.55.152 |
| 37 | 2026-08-24 15:36 | 639231818080917481 |
|
2448 ms | 54.164.55.152 |
| 36 | 2026-08-24 15:19 | 639231807961539652 |
|
113 ms | 54.164.55.152 |
| 35 | 2026-08-24 15:02 | 639231797631669865 |
|
92 ms | 54.164.55.152 |
| 34 | 2026-08-24 14:09 | 639231765923559455 |
|
127 ms | 54.164.55.152 |
| 33 | 2026-08-24 13:52 | 639231755868832964 |
|
94 ms | 54.164.55.152 |
| 32 | 2026-08-24 13:35 | 639231745628278877 |
|
359 ms | 54.164.55.152 |
| 31 | 2026-08-24 13:18 | 639231735407682062 |
|
2457 ms | 54.164.55.152 |
| 30 | 2026-08-24 12:25 | 639231703815441688 |
|
200 ms | 54.164.55.152 |
| 29 | 2026-08-24 12:09 | 639231693747052549 |
|
121 ms | 54.164.55.152 |
| 28 | 2026-08-24 11:52 | 639231683712487276 |
|
417 ms | 54.164.55.152 |
| 27 | 2026-08-24 11:35 | 639231673513573868 |
|
121 ms | 54.164.55.152 |
| 26 | 2026-08-24 10:42 | 639231641791249939 |
|
4116 ms | 54.164.55.152 |
| 25 | 2026-08-24 10:25 | 639231631866211033 |
|
91 ms | 54.164.55.152 |
| 24 | 2026-08-24 10:09 | 639231621644955316 |
|
5 ms | 54.164.55.152 |
| 23 | 2026-08-24 09:52 | 639231611478799259 |
|
93 ms | 54.164.55.152 |
| 22 | 2026-08-24 08:59 | 639231579923718211 |
|
2462 ms | 54.164.55.152 |
| 21 | 2026-08-24 08:42 | 639231569810702936 |
|
480 ms | 54.164.55.152 |
| 20 | 2026-08-24 08:25 | 639231559762411619 |
|
2458 ms | 54.164.55.152 |
| 19 | 2026-08-24 08:08 | 639231549663595407 |
|
355 ms | 54.164.55.152 |
| 18 | 2026-08-24 07:16 | 639231518076817246 |
|
356 ms | 54.164.55.152 |
| 17 | 2026-08-24 06:59 | 639231508078650885 |
|
356 ms | 54.164.55.152 |
| 16 | 2026-08-24 06:43 | 639231498210697093 |
|
3 ms | 54.164.55.152 |
| 15 | 2026-08-24 06:26 | 639231488109699360 |
|
447 ms | 54.164.55.152 |
| 14 | 2026-08-24 05:34 | 639231456772510692 |
|
2 ms | 54.164.55.152 |
| 13 | 2026-08-24 05:17 | 639231447084631185 |
|
118 ms | 54.164.55.152 |
| 12 | 2026-08-24 05:01 | 639231437208519473 |
|
3 ms | 54.164.55.152 |
| 11 | 2026-08-24 04:44 | 639231427209627490 |
|
2454 ms | 54.164.55.152 |
| 10 | 2026-08-24 03:52 | 639231395791246644 |
|
377 ms | 54.164.55.152 |
| 9 | 2026-08-24 03:36 | 639231386075551458 |
|
355 ms | 54.164.55.152 |
| 8 | 2026-08-24 03:19 | 639231376208713791 |
|
377 ms | 54.164.55.152 |
| 7 | 2026-08-24 03:03 | 639231366170589276 |
|
111 ms | 54.164.55.152 |
| 6 | 2026-08-24 02:10 | 639231334732159368 |
|
446 ms | 54.164.55.152 |
| 5 | 2026-08-24 01:54 | 639231325035670078 |
|
129 ms | 54.164.55.152 |
| 4 | 2026-08-24 01:38 | 639231315132253837 |
|
2 ms | 54.164.55.152 |
| 3 | 2026-08-24 01:21 | 639231305014280808 |
|
94 ms | 54.164.55.152 |
| 2 | 2026-08-24 00:28 | 639231273779380675 |
|
96 ms | 54.164.55.152 |
| 1 | 2026-08-24 00:12 | 639231264180839154 |
|
2101 ms | 54.164.55.152 |