DNS response history for ns1.concentric.com

ns1.concentric.com 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 69 DNS check records, 68 successful responses, 1 failed responses, and 287 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 ns1.concentric.com.
Records on Selected Date

69

Historical checks stored for this nameserver on selected date

Average Latency

287 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 23:57

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.64.25

Most recently resolved hosting IP on selected date

Successful Responses

68

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 ns1.concentric.com

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
69 2026-08-25 23:57 639232985300872416
246 ms 156.154.64.25
68 2026-08-25 23:40 639232974980190573
261 ms 156.154.64.25
67 2026-08-25 23:23 639232964577050707
260 ms 156.154.64.25
66 2026-08-25 22:29 639232932163142799
149 ms 156.154.64.25
65 2026-08-25 22:12 639232921673215474
128 ms 156.154.64.25
64 2026-08-25 21:54 639232911234504639
281 ms 156.154.64.25
63 2026-08-25 21:37 639232900747078453
260 ms 156.154.64.25
62 2026-08-25 21:19 639232890389222534
4 ms 156.154.64.25
61 2026-08-25 21:02 639232880143390843
266 ms 156.154.64.25
60 2026-08-25 20:45 639232869755024069
274 ms 156.154.64.25
59 2026-08-25 20:28 639232859355940346
237 ms 156.154.64.25
58 2026-08-25 20:10 639232848992244953
261 ms 156.154.64.25
57 2026-08-25 19:53 639232838596478500
130 ms 156.154.64.25
56 2026-08-25 19:35 639232828175327683
2120 ms 156.154.64.25
55 2026-08-25 19:18 639232817798330473
39 ms 156.154.64.25
54 2026-08-25 18:24 639232785462407552
268 ms 156.154.64.25
53 2026-08-25 18:07 639232775177487032
2110 ms 156.154.64.25
52 2026-08-25 17:50 639232764991087115
260 ms 156.154.64.25
51 2026-08-25 17:33 639232754842971478
262 ms 156.154.64.25
50 2026-08-25 17:16 639232744455159107
119 ms 156.154.64.25
49 2026-08-25 16:59 639232734145178231
166 ms 156.154.64.25
48 2026-08-25 16:42 639232723827874402
158 ms 156.154.64.25
47 2026-08-25 16:24 639232713533011892
261 ms 156.154.64.25
46 2026-08-25 16:07 639232703065318207
240 ms 156.154.64.25
45 2026-08-25 15:50 639232692629559470
264 ms 156.154.64.25
44 2026-08-25 15:32 639232682238836475
159 ms 156.154.64.25
43 2026-08-25 15:15 639232671787004306
8 ms 156.154.64.25
42 2026-08-25 14:20 639232638994329666
263 ms 156.154.64.25
41 2026-08-25 14:03 639232628614783237
41 ms 156.154.64.25
40 2026-08-25 13:46 639232618360728578
262 ms 156.154.64.25
39 2026-08-25 13:29 639232608016476376
263 ms 156.154.64.25
38 2026-08-25 13:11 639232597643611557
10 ms 156.154.64.25
37 2026-08-25 12:54 639232587225721862
9 ms 156.154.64.25
36 2026-08-25 12:37 639232576780683689
262 ms 156.154.64.25
35 2026-08-25 12:19 639232566381512620
224 ms 156.154.64.25
34 2026-08-25 12:02 639232556111768563
135 ms 156.154.64.25
33 2026-08-25 11:45 639232545839529039
278 ms 156.154.64.25
32 2026-08-25 11:28 639232535349285207
268 ms 156.154.64.25
31 2026-08-25 11:10 639232524938080723
263 ms 156.154.64.25
30 2026-08-25 10:16 639232492740373468
8 ms 156.154.64.25
29 2026-08-25 09:59 639232482235303141
260 ms 156.154.64.25
28 2026-08-25 09:42 639232471861770303
280 ms 156.154.64.25
27 2026-08-25 09:24 639232461630217327
125 ms 156.154.64.25
26 2026-08-25 09:07 639232451282965990
282 ms 156.154.64.25
25 2026-08-25 08:50 639232440814614938
264 ms 156.154.64.25
24 2026-08-25 08:33 639232430410720425
261 ms 156.154.64.25
23 2026-08-25 08:15 639232420003096185
2115 ms 156.154.64.25
22 2026-08-25 07:58 639232409467287444
262 ms 156.154.64.25
21 2026-08-25 07:40 639232399077195997
124 ms 156.154.64.25
20 2026-08-25 07:23 639232388731528337
264 ms 156.154.64.25
19 2026-08-25 07:06 639232378288598612
9 ms 156.154.64.25
18 2026-08-25 06:12 639232346196373643
132 ms 156.154.64.25
17 2026-08-25 05:55 639232336112370741
232 ms 156.154.64.25
16 2026-08-25 05:39 639232326146508970
234 ms 156.154.64.25
15 2026-08-25 05:22 639232316189381720
-
14 2026-08-25 05:06 639232306217998913
135 ms 156.154.64.25
13 2026-08-25 04:49 639232296255744174
173 ms 156.154.64.25
12 2026-08-25 04:32 639232286095760789
237 ms 156.154.64.25
11 2026-08-25 04:15 639232276086186273
258 ms 156.154.64.25
10 2026-08-25 03:58 639232265900986425
245 ms 156.154.64.25
9 2026-08-25 03:41 639232255723518075
228 ms 156.154.64.25
8 2026-08-25 03:24 639232245484452890
261 ms 156.154.64.25
7 2026-08-25 03:07 639232235157175331
263 ms 156.154.64.25
6 2026-08-25 02:14 639232203197189095
258 ms 156.154.64.25
5 2026-08-25 01:57 639232192844564298
233 ms 156.154.64.25
4 2026-08-25 01:39 639232182496008942
261 ms 156.154.64.25
3 2026-08-25 01:22 639232172197053132
117 ms 156.154.64.25
2 2026-08-25 00:29 639232140250307418
261 ms 156.154.64.25
1 2026-08-25 00:12 639232129927860324
274 ms 156.154.64.25