History for ns1.rootservers.co
Domain: rootservers.co • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns1.rootservers.co
ns1.rootservers.co 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 58 DNS check records, 58 successful responses, 0 failed responses, and 427 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.rootservers.co.
Records on Selected Date
58
Historical checks stored for this nameserver on selected date
Average Latency
427 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 20:06
All timestamps shown in UTC
Latest Resolved IP on Selected Date
198.50.152.66
Most recently resolved hosting IP on selected date
Successful Responses
58
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 ns1.rootservers.co
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 |
|---|---|---|---|---|---|
| 58 | 2026-08-25 20:06 | 639232848992244953 |
|
2110 ms | 198.50.152.66 |
| 57 | 2026-08-25 19:49 | 639232838596478500 |
|
211 ms | 198.50.152.66 |
| 56 | 2026-08-25 19:32 | 639232828175327683 |
|
220 ms | 198.50.152.66 |
| 55 | 2026-08-25 19:14 | 639232817798330473 |
|
237 ms | 198.50.152.66 |
| 54 | 2026-08-25 18:20 | 639232785462407552 |
|
218 ms | 198.50.152.66 |
| 53 | 2026-08-25 18:03 | 639232775177487032 |
|
181 ms | 198.50.152.66 |
| 52 | 2026-08-25 17:46 | 639232764991087115 |
|
233 ms | 198.50.152.66 |
| 51 | 2026-08-25 17:29 | 639232754842971478 |
|
32 ms | 198.50.152.66 |
| 50 | 2026-08-25 17:12 | 639232744455159107 |
|
218 ms | 198.50.152.66 |
| 49 | 2026-08-25 16:55 | 639232734145178231 |
|
111 ms | 198.50.152.66 |
| 48 | 2026-08-25 16:38 | 639232723827874402 |
|
218 ms | 198.50.152.66 |
| 47 | 2026-08-25 16:21 | 639232713533011892 |
|
155 ms | 198.50.152.66 |
| 46 | 2026-08-25 16:03 | 639232703065318207 |
|
206 ms | 198.50.152.66 |
| 45 | 2026-08-25 15:46 | 639232692629559470 |
|
148 ms | 198.50.152.66 |
| 44 | 2026-08-25 15:28 | 639232682238836475 |
|
10 ms | 198.50.152.66 |
| 43 | 2026-08-25 15:11 | 639232671787004306 |
|
41 ms | 198.50.152.66 |
| 42 | 2026-08-25 14:16 | 639232638994329666 |
|
154 ms | 198.50.152.66 |
| 41 | 2026-08-25 13:59 | 639232628614783237 |
|
232 ms | 198.50.152.66 |
| 40 | 2026-08-25 13:42 | 639232618360728578 |
|
130 ms | 198.50.152.66 |
| 39 | 2026-08-25 13:25 | 639232608016476376 |
|
113 ms | 198.50.152.66 |
| 38 | 2026-08-25 13:07 | 639232597643611557 |
|
216 ms | 198.50.152.66 |
| 37 | 2026-08-25 12:50 | 639232587225721862 |
|
117 ms | 198.50.152.66 |
| 36 | 2026-08-25 12:33 | 639232576780683689 |
|
213 ms | 198.50.152.66 |
| 35 | 2026-08-25 12:15 | 639232566381512620 |
|
222 ms | 198.50.152.66 |
| 34 | 2026-08-25 11:58 | 639232556111768563 |
|
221 ms | 198.50.152.66 |
| 33 | 2026-08-25 11:41 | 639232545839529039 |
|
226 ms | 198.50.152.66 |
| 32 | 2026-08-25 11:24 | 639232535349285207 |
|
247 ms | 198.50.152.66 |
| 31 | 2026-08-25 11:06 | 639232524938080723 |
|
8 ms | 198.50.152.66 |
| 30 | 2026-08-25 10:13 | 639232492740373468 |
|
222 ms | 198.50.152.66 |
| 29 | 2026-08-25 09:55 | 639232482235303141 |
|
37 ms | 198.50.152.66 |
| 28 | 2026-08-25 09:38 | 639232471861770303 |
|
249 ms | 198.50.152.66 |
| 27 | 2026-08-25 09:21 | 639232461630217327 |
|
215 ms | 198.50.152.66 |
| 26 | 2026-08-25 09:04 | 639232451282965990 |
|
220 ms | 198.50.152.66 |
| 25 | 2026-08-25 08:46 | 639232440814614938 |
|
4029 ms | 198.50.152.66 |
| 24 | 2026-08-25 08:29 | 639232430410720425 |
|
2014 ms | 198.50.152.66 |
| 23 | 2026-08-25 08:11 | 639232420003096185 |
|
228 ms | 198.50.152.66 |
| 22 | 2026-08-25 07:54 | 639232409467287444 |
|
2247 ms | 198.50.152.66 |
| 21 | 2026-08-25 07:37 | 639232399077195997 |
|
212 ms | 198.50.152.66 |
| 20 | 2026-08-25 07:19 | 639232388731528337 |
|
203 ms | 198.50.152.66 |
| 19 | 2026-08-25 07:02 | 639232378288598612 |
|
12 ms | 198.50.152.66 |
| 18 | 2026-08-25 06:08 | 639232346196373643 |
|
13 ms | 198.50.152.66 |
| 17 | 2026-08-25 05:52 | 639232336112370741 |
|
4150 ms | 198.50.152.66 |
| 16 | 2026-08-25 05:35 | 639232326146508970 |
|
107 ms | 198.50.152.66 |
| 15 | 2026-08-25 05:18 | 639232316189381720 |
|
208 ms | 198.50.152.66 |
| 14 | 2026-08-25 05:02 | 639232306217998913 |
|
49 ms | 198.50.152.66 |
| 13 | 2026-08-25 04:45 | 639232296255744174 |
|
133 ms | 198.50.152.66 |
| 12 | 2026-08-25 04:28 | 639232286095760789 |
|
109 ms | 198.50.152.66 |
| 11 | 2026-08-25 04:11 | 639232276086186273 |
|
119 ms | 198.50.152.66 |
| 10 | 2026-08-25 03:55 | 639232265900986425 |
|
204 ms | 198.50.152.66 |
| 9 | 2026-08-25 03:38 | 639232255723518075 |
|
125 ms | 198.50.152.66 |
| 8 | 2026-08-25 03:21 | 639232245484452890 |
|
216 ms | 198.50.152.66 |
| 7 | 2026-08-25 03:03 | 639232235157175331 |
|
169 ms | 198.50.152.66 |
| 6 | 2026-08-25 02:10 | 639232203197189095 |
|
108 ms | 198.50.152.66 |
| 5 | 2026-08-25 01:53 | 639232192844564298 |
|
2018 ms | 198.50.152.66 |
| 4 | 2026-08-25 01:36 | 639232182496008942 |
|
133 ms | 198.50.152.66 |
| 3 | 2026-08-25 01:18 | 639232172197053132 |
|
225 ms | 198.50.152.66 |
| 2 | 2026-08-25 00:25 | 639232140250307418 |
|
106 ms | 198.50.152.66 |
| 1 | 2026-08-25 00:08 | 639232129927860324 |
|
31 ms | 198.50.152.66 |