History for b.root--servers.com
Domain: root--servers.com • Tracking since 2026-08-04 23:25 UTC
DNS response history for b.root--servers.com
b.root--servers.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 2026-08-22. For this date, NameServerHistory found 74 DNS check records, 73 successful responses, 1 failed responses, and 541 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.com.
Records on Selected Date
74
Historical checks stored for this nameserver on selected date
Average Latency
541 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-22 23:57
All timestamps shown in UTC
Latest Resolved IP on Selected Date
192.3.150.67
Most recently resolved hosting IP on selected date
Successful Responses
73
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 b.root--servers.com
Showing DNS history for 2026-08-22 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 |
|---|---|---|---|---|---|
| 74 | 2026-08-22 23:57 | 639230391807229016 |
|
219 ms | 192.3.150.67 |
| 73 | 2026-08-22 23:41 | 639230382051619327 |
|
114 ms | 192.3.150.67 |
| 72 | 2026-08-22 23:25 | 639230372323353529 |
|
2256 ms | 192.3.150.67 |
| 71 | 2026-08-22 23:09 | 639230362586451064 |
|
226 ms | 192.3.150.67 |
| 70 | 2026-08-22 22:52 | 639230352793666303 |
|
3746 ms | 192.3.150.67 |
| 69 | 2026-08-22 22:36 | 639230342775737758 |
|
219 ms | 192.3.150.67 |
| 68 | 2026-08-22 22:19 | 639230332639939561 |
|
228 ms | 192.3.150.67 |
| 67 | 2026-08-22 21:26 | 639230301014190104 |
|
3742 ms | 192.3.150.67 |
| 66 | 2026-08-22 21:10 | 639230291048161498 |
|
229 ms | 192.3.150.67 |
| 65 | 2026-08-22 20:53 | 639230280894353664 |
|
226 ms | 192.3.150.67 |
| 64 | 2026-08-22 20:36 | 639230270699419073 |
|
227 ms | 192.3.150.67 |
| 63 | 2026-08-22 20:19 | 639230260248163050 |
|
153 ms | 192.3.150.67 |
| 62 | 2026-08-22 20:01 | 639230250122494282 |
|
228 ms | 192.3.150.67 |
| 61 | 2026-08-22 19:45 | 639230239972935046 |
|
229 ms | 192.3.150.67 |
| 60 | 2026-08-22 19:28 | 639230229963262464 |
|
224 ms | 192.3.150.67 |
| 59 | 2026-08-22 19:11 | 639230220033804658 |
|
232 ms | 192.3.150.67 |
| 58 | 2026-08-22 18:55 | 639230209891107289 |
|
225 ms | 192.3.150.67 |
| 57 | 2026-08-22 18:37 | 639230199630298717 |
|
222 ms | 192.3.150.67 |
| 56 | 2026-08-22 18:20 | 639230189301984150 |
|
227 ms | 192.3.150.67 |
| 55 | 2026-08-22 17:27 | 639230157138468804 |
|
840 ms | 192.3.150.67 |
| 54 | 2026-08-22 17:10 | 639230146987869495 |
|
225 ms | 192.3.150.67 |
| 53 | 2026-08-22 16:53 | 639230136768638516 |
|
227 ms | 192.3.150.67 |
| 52 | 2026-08-22 16:36 | 639230126735907877 |
|
3630 ms | 192.3.150.67 |
| 51 | 2026-08-22 16:19 | 639230116551187768 |
|
229 ms | 192.3.150.67 |
| 50 | 2026-08-22 16:02 | 639230106335615913 |
|
- | |
| 49 | 2026-08-22 15:45 | 639230096177758176 |
|
233 ms | 192.3.150.67 |
| 48 | 2026-08-22 15:28 | 639230086185999993 |
|
9 ms | 192.3.150.67 |
| 47 | 2026-08-22 15:11 | 639230076247854903 |
|
273 ms | 192.3.150.67 |
| 46 | 2026-08-22 14:55 | 639230066076077530 |
|
131 ms | 192.3.150.67 |
| 45 | 2026-08-22 14:38 | 639230055738197328 |
|
2119 ms | 192.3.150.67 |
| 44 | 2026-08-22 14:20 | 639230045411225521 |
|
295 ms | 192.3.150.67 |
| 43 | 2026-08-22 13:26 | 639230013046000470 |
|
12 ms | 192.3.150.67 |
| 42 | 2026-08-22 13:10 | 639230003090037878 |
|
235 ms | 192.3.150.67 |
| 41 | 2026-08-22 12:53 | 639229993008259475 |
|
153 ms | 192.3.150.67 |
| 40 | 2026-08-22 12:36 | 639229982909449470 |
|
228 ms | 192.3.150.67 |
| 39 | 2026-08-22 12:19 | 639229973035502212 |
|
134 ms | 192.3.150.67 |
| 38 | 2026-08-22 12:03 | 639229963064296145 |
|
2 ms | 192.3.150.67 |
| 37 | 2026-08-22 11:46 | 639229952996162143 |
|
257 ms | 192.3.150.67 |
| 36 | 2026-08-22 11:29 | 639229943051949195 |
|
234 ms | 192.3.150.67 |
| 35 | 2026-08-22 11:13 | 639229932919214934 |
|
3 ms | 192.3.150.67 |
| 34 | 2026-08-22 10:56 | 639229922745889838 |
|
2 ms | 192.3.150.67 |
| 33 | 2026-08-22 10:39 | 639229912587214796 |
|
421 ms | 192.3.150.67 |
| 32 | 2026-08-22 10:22 | 639229902240004454 |
|
224 ms | 192.3.150.67 |
| 31 | 2026-08-22 09:29 | 639229870800501662 |
|
237 ms | 192.3.150.67 |
| 30 | 2026-08-22 09:13 | 639229861058384956 |
|
6 ms | 192.3.150.67 |
| 29 | 2026-08-22 08:57 | 639229851158592604 |
|
2 ms | 192.3.150.67 |
| 28 | 2026-08-22 08:40 | 639229841475569629 |
|
2321 ms | 192.3.150.67 |
| 27 | 2026-08-22 08:24 | 639229831887658471 |
|
234 ms | 192.3.150.67 |
| 26 | 2026-08-22 08:08 | 639229822043670346 |
|
2227 ms | 192.3.150.67 |
| 25 | 2026-08-22 07:52 | 639229812327913936 |
|
2124 ms | 192.3.150.67 |
| 24 | 2026-08-22 07:36 | 639229802629488686 |
|
3 ms | 192.3.150.67 |
| 23 | 2026-08-22 07:19 | 639229793051447309 |
|
227 ms | 192.3.150.67 |
| 22 | 2026-08-22 07:03 | 639229783303531961 |
|
219 ms | 192.3.150.67 |
| 21 | 2026-08-22 06:47 | 639229773458051942 |
|
219 ms | 192.3.150.67 |
| 20 | 2026-08-22 06:30 | 639229763373848056 |
|
218 ms | 192.3.150.67 |
| 19 | 2026-08-22 05:38 | 639229732140622809 |
|
49 ms | 192.3.150.67 |
| 18 | 2026-08-22 05:22 | 639229722699695967 |
|
10 ms | 192.3.150.67 |
| 17 | 2026-08-22 05:06 | 639229713097498075 |
|
2263 ms | 192.3.150.67 |
| 16 | 2026-08-22 04:50 | 639229703543969637 |
|
1818 ms | 192.3.150.67 |
| 15 | 2026-08-22 04:34 | 639229693970392873 |
|
2 ms | 192.3.150.67 |
| 14 | 2026-08-22 04:18 | 639229684277329469 |
|
230 ms | 192.3.150.67 |
| 13 | 2026-08-22 04:02 | 639229674501596661 |
|
218 ms | 192.3.150.67 |
| 12 | 2026-08-22 03:46 | 639229665064441147 |
|
2 ms | 192.3.150.67 |
| 11 | 2026-08-22 03:30 | 639229655507536872 |
|
221 ms | 192.3.150.67 |
| 10 | 2026-08-22 03:14 | 639229645849603111 |
|
231 ms | 192.3.150.67 |
| 9 | 2026-08-22 02:58 | 639229636090497453 |
|
216 ms | 192.3.150.67 |
| 8 | 2026-08-22 02:41 | 639229625978544281 |
|
2136 ms | 192.3.150.67 |
| 7 | 2026-08-22 01:49 | 639229594644662176 |
|
4 ms | 192.3.150.67 |
| 6 | 2026-08-22 01:33 | 639229585214633065 |
|
115 ms | 192.3.150.67 |
| 5 | 2026-08-22 01:17 | 639229575581042175 |
|
226 ms | 192.3.150.67 |
| 4 | 2026-08-22 01:01 | 639229565912268962 |
|
219 ms | 192.3.150.67 |
| 3 | 2026-08-22 00:45 | 639229556237813203 |
|
229 ms | 192.3.150.67 |
| 2 | 2026-08-22 00:29 | 639229546625802518 |
|
3 ms | 192.3.150.67 |
| 1 | 2026-08-22 00:13 | 639229537172016621 |
|
4 ms | 192.3.150.67 |