History for b.root-servers.net
Domain: root-servers.net • Tracking since 2026-08-04 23:25 UTC
DNS response history for b.root-servers.net
b.root-servers.net 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 2026-08-26. For this date, NameServerHistory found 40 DNS check records, 40 successful responses, 0 failed responses, and 14 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 b.root-servers.net.
Records on Selected Date
40
Historical checks stored for this nameserver on selected date
Average Latency
14 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-26 13:10
All timestamps shown in UTC
Latest Resolved IP on Selected Date
170.247.170.2
Most recently resolved hosting IP on selected date
Successful Responses
40
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 b.root-servers.net
Showing DNS history for 2026-08-26 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 |
|---|---|---|---|---|---|
| 40 | 2026-08-26 13:10 | 639233466171592605 |
|
6 ms | 170.247.170.2 |
| 39 | 2026-08-26 12:52 | 639233455747096265 |
|
6 ms | 170.247.170.2 |
| 38 | 2026-08-26 12:35 | 639233445367152284 |
|
4 ms | 170.247.170.2 |
| 37 | 2026-08-26 12:18 | 639233434974187439 |
|
3 ms | 170.247.170.2 |
| 36 | 2026-08-26 12:00 | 639233424567558554 |
|
43 ms | 170.247.170.2 |
| 35 | 2026-08-26 11:43 | 639233414056832719 |
|
3 ms | 170.247.170.2 |
| 34 | 2026-08-26 11:25 | 639233403515141099 |
|
110 ms | 170.247.170.2 |
| 33 | 2026-08-26 10:31 | 639233370841350248 |
|
4 ms | 170.247.170.2 |
| 32 | 2026-08-26 10:13 | 639233360361507238 |
|
11 ms | 170.247.170.2 |
| 31 | 2026-08-26 09:56 | 639233350067824371 |
|
4 ms | 170.247.170.2 |
| 30 | 2026-08-26 09:39 | 639233339545274518 |
|
4 ms | 170.247.170.2 |
| 29 | 2026-08-26 09:22 | 639233329214918079 |
|
5 ms | 170.247.170.2 |
| 28 | 2026-08-26 09:04 | 639233318749762337 |
|
13 ms | 170.247.170.2 |
| 27 | 2026-08-26 08:47 | 639233308387917838 |
|
3 ms | 170.247.170.2 |
| 26 | 2026-08-26 08:29 | 639233297961740122 |
|
3 ms | 170.247.170.2 |
| 25 | 2026-08-26 08:12 | 639233287487159094 |
|
5 ms | 170.247.170.2 |
| 24 | 2026-08-26 07:54 | 639233276995531707 |
|
2 ms | 170.247.170.2 |
| 23 | 2026-08-26 07:37 | 639233266521568229 |
|
6 ms | 170.247.170.2 |
| 22 | 2026-08-26 07:20 | 639233256081047431 |
|
66 ms | 170.247.170.2 |
| 21 | 2026-08-26 06:26 | 639233223620132921 |
|
6 ms | 170.247.170.2 |
| 20 | 2026-08-26 06:08 | 639233213287814244 |
|
8 ms | 170.247.170.2 |
| 19 | 2026-08-26 05:51 | 639233202925983161 |
|
14 ms | 170.247.170.2 |
| 18 | 2026-08-26 05:34 | 639233192644780696 |
|
11 ms | 170.247.170.2 |
| 17 | 2026-08-26 05:17 | 639233182401183833 |
|
12 ms | 170.247.170.2 |
| 16 | 2026-08-26 05:00 | 639233172074181051 |
|
6 ms | 170.247.170.2 |
| 15 | 2026-08-26 04:43 | 639233161808421455 |
|
3 ms | 170.247.170.2 |
| 14 | 2026-08-26 04:25 | 639233151357344052 |
|
12 ms | 170.247.170.2 |
| 13 | 2026-08-26 04:08 | 639233141034116946 |
|
3 ms | 170.247.170.2 |
| 12 | 2026-08-26 03:51 | 639233130828334142 |
|
6 ms | 170.247.170.2 |
| 11 | 2026-08-26 03:33 | 639233120373450007 |
|
8 ms | 170.247.170.2 |
| 10 | 2026-08-26 03:16 | 639233110066216193 |
|
81 ms | 170.247.170.2 |
| 9 | 2026-08-26 02:23 | 639233078065410564 |
|
19 ms | 170.247.170.2 |
| 8 | 2026-08-26 02:06 | 639233067787457832 |
|
6 ms | 170.247.170.2 |
| 7 | 2026-08-26 01:49 | 639233057501801162 |
|
6 ms | 170.247.170.2 |
| 6 | 2026-08-26 01:31 | 639233047089431703 |
|
3 ms | 170.247.170.2 |
| 5 | 2026-08-26 01:14 | 639233036754790688 |
|
3 ms | 170.247.170.2 |
| 4 | 2026-08-26 00:57 | 639233026412602472 |
|
8 ms | 170.247.170.2 |
| 3 | 2026-08-26 00:40 | 639233016064066127 |
|
15 ms | 170.247.170.2 |
| 2 | 2026-08-26 00:23 | 639233005922655772 |
|
10 ms | 170.247.170.2 |
| 1 | 2026-08-26 00:06 | 639232995672256907 |
|
5 ms | 170.247.170.2 |