History for ns21.wordpress.com
Domain: wordpress.com • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns21.wordpress.com
ns21.wordpress.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 2026-08-25. For this date, NameServerHistory found 8 DNS check records, 8 successful responses, 0 failed responses, and 41 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 ns21.wordpress.com.
Records on Selected Date
8
Historical checks stored for this nameserver on selected date
Average Latency
41 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 01:31
All timestamps shown in UTC
Latest Resolved IP on Selected Date
192.0.78.13
Most recently resolved hosting IP on selected date
Successful Responses
8
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 ns21.wordpress.com
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 |
|---|---|---|---|---|---|
| 8 | 2026-08-25 01:31 | 639232182496008942 |
|
37 ms | 192.0.78.13 |
| 7 | 2026-08-25 01:31 | 639232182496008942 |
|
37 ms | 192.0.78.12 |
| 6 | 2026-08-25 01:14 | 639232172197053132 |
|
20 ms | 192.0.78.12 |
| 5 | 2026-08-25 01:14 | 639232172197053132 |
|
20 ms | 192.0.78.13 |
| 4 | 2026-08-25 00:20 | 639232140250307418 |
|
79 ms | 192.0.78.13 |
| 3 | 2026-08-25 00:20 | 639232140250307418 |
|
79 ms | 192.0.78.12 |
| 2 | 2026-08-25 00:03 | 639232129927860324 |
|
27 ms | 192.0.78.12 |
| 1 | 2026-08-25 00:03 | 639232129927860324 |
|
27 ms | 192.0.78.13 |