Name Server Status | apollo.cs.columbia.edu DNS Response History

Name: DNS nameserver history dataset for apollo.cs.columbia.edu
Creator: NameServerHistory

DNS response history for apollo.cs.columbia.edu

apollo.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 57 DNS check records, 56 successful responses, 1 failed responses, and 399 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 apollo.cs.columbia.edu.

Records on Selected Date

57

Historical checks stored for this nameserver on selected date

Average Latency

399 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 19:52

All timestamps shown in UTC

Latest Resolved IP on Selected Date

128.59.16.69

Most recently resolved hosting IP on selected date

Successful Responses

56

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

2%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for apollo.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	Response	IP Address
57	2026-08-25 19:52	639232838596478500	198 ms	128.59.16.69
56	2026-08-25 19:35	639232828175327683	295 ms	128.59.16.69
55	2026-08-25 19:17	639232817798330473	188 ms	128.59.16.69
54	2026-08-25 18:23	639232785462407552	109 ms	128.59.16.69
53	2026-08-25 18:06	639232775177487032	221 ms	128.59.16.69
52	2026-08-25 17:49	639232764991087115	96 ms	128.59.16.69
51	2026-08-25 17:32	639232754842971478	98 ms	128.59.16.69
50	2026-08-25 17:15	639232744455159107	98 ms	128.59.16.69
49	2026-08-25 16:58	639232734145178231	103 ms	128.59.16.69
48	2026-08-25 16:41	639232723827874402	103 ms	128.59.16.69
47	2026-08-25 16:24	639232713533011892	111 ms	128.59.16.69
46	2026-08-25 16:06	639232703065318207	220 ms	128.59.16.69
45	2026-08-25 15:49	639232692629559470	105 ms	128.59.16.69
44	2026-08-25 15:31	639232682238836475	110 ms	128.59.16.69
43	2026-08-25 15:14	639232671787004306	101 ms	128.59.16.69
42	2026-08-25 14:19	639232638994329666	237 ms	128.59.16.69
41	2026-08-25 14:02	639232628614783237	111 ms	128.59.16.69
40	2026-08-25 13:45	639232618360728578	211 ms	128.59.16.69
39	2026-08-25 13:28	639232608016476376	126 ms	128.59.16.69
38	2026-08-25 13:10	639232597643611557	103 ms	128.59.16.69
37	2026-08-25 12:53	639232587225721862	222 ms	128.59.16.69
36	2026-08-25 12:36	639232576780683689	277 ms	128.59.16.69
35	2026-08-25 12:18	639232566381512620	262 ms	128.59.16.69
34	2026-08-25 12:01	639232556111768563	259 ms	128.59.16.69
33	2026-08-25 11:44	639232545839529039	100 ms	128.59.16.69
32	2026-08-25 11:27	639232535349285207	90 ms	128.59.16.69
31	2026-08-25 11:09	639232524938080723	196 ms	128.59.16.69
30	2026-08-25 10:15	639232492740373468	113 ms	128.59.16.69
29	2026-08-25 09:58	639232482235303141	90 ms	128.59.16.69
28	2026-08-25 09:41	639232471861770303	92 ms	128.59.16.69
27	2026-08-25 09:24	639232461630217327	100 ms	128.59.16.69
26	2026-08-25 09:07	639232451282965990		-
25	2026-08-25 08:49	639232440814614938	103 ms	128.59.16.69
24	2026-08-25 08:32	639232430410720425	102 ms	128.59.16.69
23	2026-08-25 08:14	639232420003096185	2114 ms	128.59.16.69
22	2026-08-25 07:57	639232409467287444	4103 ms	128.59.16.69
21	2026-08-25 07:39	639232399077195997	98 ms	128.59.16.69
20	2026-08-25 07:22	639232388731528337	141 ms	128.59.16.69
19	2026-08-25 07:05	639232378288598612	98 ms	128.59.16.69
18	2026-08-25 06:11	639232346196373643	130 ms	128.59.16.69
17	2026-08-25 05:54	639232336112370741	94 ms	128.59.16.69
16	2026-08-25 05:38	639232326146508970	118 ms	128.59.16.69
15	2026-08-25 05:21	639232316189381720	132 ms	128.59.16.69
14	2026-08-25 05:05	639232306217998913	2181 ms	128.59.16.69
13	2026-08-25 04:48	639232296255744174	270 ms	128.59.16.69
12	2026-08-25 04:31	639232286095760789	516 ms	128.59.16.69
11	2026-08-25 04:14	639232276086186273	97 ms	128.59.16.69
10	2026-08-25 03:57	639232265900986425	107 ms	128.59.16.69
9	2026-08-25 03:40	639232255723518075	123 ms	128.59.16.69
8	2026-08-25 03:23	639232245484452890	2145 ms	128.59.16.69
7	2026-08-25 03:06	639232235157175331	104 ms	128.59.16.69
6	2026-08-25 02:13	639232203197189095	193 ms	128.59.16.69
5	2026-08-25 01:56	639232192844564298	2090 ms	128.59.16.69
4	2026-08-25 01:38	639232182496008942	97 ms	128.59.16.69
3	2026-08-25 01:21	639232172197053132	251 ms	128.59.16.69
2	2026-08-25 00:28	639232140250307418	2095 ms	128.59.16.69
1	2026-08-25 00:11	639232129927860324	99 ms	128.59.16.69