History for ns1.coursesdu.com
Domain: coursesdu.com • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns1.coursesdu.com
ns1.coursesdu.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 2026-08-21. For this date, NameServerHistory found 7 DNS check records, 7 successful responses, 0 failed responses, and 460 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.coursesdu.com.
Records on Selected Date
7
Historical checks stored for this nameserver on selected date
Average Latency
460 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-21 22:14
All timestamps shown in UTC
Latest Resolved IP on Selected Date
119.59.102.172
Most recently resolved hosting IP on selected date
Successful Responses
7
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.coursesdu.com
Showing DNS history for 2026-08-21 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 |
|---|---|---|---|---|---|
| 7 | 2026-08-21 22:14 | 639229456606578934 |
|
350 ms | 119.59.102.172 |
| 6 | 2026-08-21 18:20 | 639229317791715692 |
|
363 ms | 119.59.102.172 |
| 5 | 2026-08-21 14:23 | 639229177815876178 |
|
1038 ms | 119.59.102.172 |
| 4 | 2026-08-21 10:35 | 639229038947447232 |
|
378 ms | 119.59.102.172 |
| 3 | 2026-08-21 06:41 | 639228899518173317 |
|
363 ms | 119.59.102.172 |
| 2 | 2026-08-21 02:49 | 639228761131421385 |
|
365 ms | 119.59.102.172 |
| 1 | 2026-08-21 01:07 | 639228700387002072 |
|
364 ms | 119.59.102.172 |