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 2026-08-28. For this date, NameServerHistory found 23 DNS check records, 23 successful responses, 0 failed responses, and 11 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
23
Historical checks stored for this nameserver on selected date
Average Latency
11 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-28 09:23
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
23
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 2026-08-28 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 |
|---|---|---|---|---|---|
| 23 | 2026-08-28 09:23 | 639235058337459445 |
|
14 ms | 170.247.170.2 |
| 22 | 2026-08-28 09:06 | 639235047825109146 |
|
8 ms | 170.247.170.2 |
| 21 | 2026-08-28 08:48 | 639235037383229033 |
|
5 ms | 170.247.170.2 |
| 20 | 2026-08-28 07:56 | 639235005619242711 |
|
3 ms | 170.247.170.2 |
| 19 | 2026-08-28 07:38 | 639234995310346584 |
|
9 ms | 170.247.170.2 |
| 18 | 2026-08-28 07:21 | 639234984946548933 |
|
3 ms | 170.247.170.2 |
| 17 | 2026-08-28 07:04 | 639234974608077290 |
|
4 ms | 170.247.170.2 |
| 16 | 2026-08-28 06:10 | 639234942529845595 |
|
7 ms | 170.247.170.2 |
| 15 | 2026-08-28 05:53 | 639234932259126627 |
|
5 ms | 170.247.170.2 |
| 14 | 2026-08-28 05:36 | 639234921916735988 |
|
5 ms | 170.247.170.2 |
| 13 | 2026-08-28 05:19 | 639234911470038027 |
|
88 ms | 170.247.170.2 |
| 12 | 2026-08-28 04:25 | 639234879588411654 |
|
10 ms | 170.247.170.2 |
| 11 | 2026-08-28 04:08 | 639234869341589104 |
|
5 ms | 170.247.170.2 |
| 10 | 2026-08-28 03:51 | 639234859012216675 |
|
5 ms | 170.247.170.2 |
| 9 | 2026-08-28 03:34 | 639234848695364934 |
|
4 ms | 170.247.170.2 |
| 8 | 2026-08-28 02:41 | 639234816952458162 |
|
4 ms | 170.247.170.2 |
| 7 | 2026-08-28 02:24 | 639234806773081598 |
|
4 ms | 170.247.170.2 |
| 6 | 2026-08-28 02:07 | 639234796382955255 |
|
16 ms | 170.247.170.2 |
| 5 | 2026-08-28 01:50 | 639234786015782563 |
|
5 ms | 170.247.170.2 |
| 4 | 2026-08-28 00:56 | 639234753811917646 |
|
7 ms | 170.247.170.2 |
| 3 | 2026-08-28 00:39 | 639234743739767811 |
|
4 ms | 170.247.170.2 |
| 2 | 2026-08-28 00:22 | 639234733372362811 |
|
3 ms | 170.247.170.2 |
| 1 | 2026-08-28 00:05 | 639234723048550337 |
|
34 ms | 170.247.170.2 |