History for diana.cs.columbia.edu
Domain: columbia.edu • Tracking since 2026-08-04 23:25 UTC
DNS response history for diana.cs.columbia.edu
diana.cs.columbia.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 2026-08-25. For this date, NameServerHistory found 50 DNS check records, 50 successful responses, 0 failed responses, and 459 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 diana.cs.columbia.edu.
Records on Selected Date
50
Historical checks stored for this nameserver on selected date
Average Latency
459 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 17:12
All timestamps shown in UTC
Latest Resolved IP on Selected Date
128.59.11.232
Most recently resolved hosting IP on selected date
Successful Responses
50
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 diana.cs.columbia.edu
Showing DNS history for 2026-08-25 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 |
|---|---|---|---|---|---|
| 50 | 2026-08-25 17:12 | 639232744455159107 |
|
107 ms | 128.59.11.232 |
| 49 | 2026-08-25 16:55 | 639232734145178231 |
|
141 ms | 128.59.11.232 |
| 48 | 2026-08-25 16:37 | 639232723827874402 |
|
1785 ms | 128.59.11.232 |
| 47 | 2026-08-25 16:20 | 639232713533011892 |
|
107 ms | 128.59.11.232 |
| 46 | 2026-08-25 16:03 | 639232703065318207 |
|
112 ms | 128.59.11.232 |
| 45 | 2026-08-25 15:45 | 639232692629559470 |
|
122 ms | 128.59.11.232 |
| 44 | 2026-08-25 15:28 | 639232682238836475 |
|
98 ms | 128.59.11.232 |
| 43 | 2026-08-25 15:11 | 639232671787004306 |
|
141 ms | 128.59.11.232 |
| 42 | 2026-08-25 14:16 | 639232638994329666 |
|
111 ms | 128.59.11.232 |
| 41 | 2026-08-25 13:59 | 639232628614783237 |
|
2108 ms | 128.59.11.232 |
| 40 | 2026-08-25 13:42 | 639232618360728578 |
|
196 ms | 128.59.11.232 |
| 39 | 2026-08-25 13:24 | 639232608016476376 |
|
102 ms | 128.59.11.232 |
| 38 | 2026-08-25 13:07 | 639232597643611557 |
|
191 ms | 128.59.11.232 |
| 37 | 2026-08-25 12:50 | 639232587225721862 |
|
200 ms | 128.59.11.232 |
| 36 | 2026-08-25 12:32 | 639232576780683689 |
|
196 ms | 128.59.11.232 |
| 35 | 2026-08-25 12:15 | 639232566381512620 |
|
103 ms | 128.59.11.232 |
| 34 | 2026-08-25 11:58 | 639232556111768563 |
|
98 ms | 128.59.11.232 |
| 33 | 2026-08-25 11:41 | 639232545839529039 |
|
595 ms | 128.59.11.232 |
| 32 | 2026-08-25 11:23 | 639232535349285207 |
|
203 ms | 128.59.11.232 |
| 31 | 2026-08-25 11:06 | 639232524938080723 |
|
245 ms | 128.59.11.232 |
| 30 | 2026-08-25 10:12 | 639232492740373468 |
|
101 ms | 128.59.11.232 |
| 29 | 2026-08-25 09:55 | 639232482235303141 |
|
544 ms | 128.59.11.232 |
| 28 | 2026-08-25 09:37 | 639232471861770303 |
|
113 ms | 128.59.11.232 |
| 27 | 2026-08-25 09:20 | 639232461630217327 |
|
106 ms | 128.59.11.232 |
| 26 | 2026-08-25 09:03 | 639232451282965990 |
|
207 ms | 128.59.11.232 |
| 25 | 2026-08-25 08:46 | 639232440814614938 |
|
98 ms | 128.59.11.232 |
| 24 | 2026-08-25 08:28 | 639232430410720425 |
|
125 ms | 128.59.11.232 |
| 23 | 2026-08-25 08:11 | 639232420003096185 |
|
105 ms | 128.59.11.232 |
| 22 | 2026-08-25 07:54 | 639232409467287444 |
|
98 ms | 128.59.11.232 |
| 21 | 2026-08-25 07:36 | 639232399077195997 |
|
2102 ms | 128.59.11.232 |
| 20 | 2026-08-25 07:19 | 639232388731528337 |
|
96 ms | 128.59.11.232 |
| 19 | 2026-08-25 07:02 | 639232378288598612 |
|
112 ms | 128.59.11.232 |
| 18 | 2026-08-25 06:08 | 639232346196373643 |
|
120 ms | 128.59.11.232 |
| 17 | 2026-08-25 05:51 | 639232336112370741 |
|
140 ms | 128.59.11.232 |
| 16 | 2026-08-25 05:35 | 639232326146508970 |
|
217 ms | 128.59.11.232 |
| 15 | 2026-08-25 05:18 | 639232316189381720 |
|
213 ms | 128.59.11.232 |
| 14 | 2026-08-25 05:01 | 639232306217998913 |
|
2032 ms | 128.59.11.232 |
| 13 | 2026-08-25 04:45 | 639232296255744174 |
|
197 ms | 128.59.11.232 |
| 12 | 2026-08-25 04:28 | 639232286095760789 |
|
120 ms | 128.59.11.232 |
| 11 | 2026-08-25 04:11 | 639232276086186273 |
|
109 ms | 128.59.11.232 |
| 10 | 2026-08-25 03:54 | 639232265900986425 |
|
2183 ms | 128.59.11.232 |
| 9 | 2026-08-25 03:37 | 639232255723518075 |
|
194 ms | 128.59.11.232 |
| 8 | 2026-08-25 03:20 | 639232245484452890 |
|
103 ms | 128.59.11.232 |
| 7 | 2026-08-25 03:03 | 639232235157175331 |
|
118 ms | 128.59.11.232 |
| 6 | 2026-08-25 02:10 | 639232203197189095 |
|
187 ms | 128.59.11.232 |
| 5 | 2026-08-25 01:52 | 639232192844564298 |
|
1753 ms | 128.59.11.232 |
| 4 | 2026-08-25 01:35 | 639232182496008942 |
|
2105 ms | 128.59.11.232 |
| 3 | 2026-08-25 01:18 | 639232172197053132 |
|
107 ms | 128.59.11.232 |
| 2 | 2026-08-25 00:25 | 639232140250307418 |
|
211 ms | 128.59.11.232 |
| 1 | 2026-08-25 00:08 | 639232129927860324 |
|
2092 ms | 128.59.11.232 |