History for ns21.cfirsthost.com
Domain: cfirsthost.com • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns21.cfirsthost.com
ns21.cfirsthost.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 2026-08-12. For this date, NameServerHistory found 62 DNS check records, 62 successful responses, 0 failed responses, and 387 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.cfirsthost.com.
Records on Selected Date
62
Historical checks stored for this nameserver on selected date
Average Latency
387 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-12 23:56
All timestamps shown in UTC
Latest Resolved IP on Selected Date
170.249.233.193
Most recently resolved hosting IP on selected date
Successful Responses
62
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.cfirsthost.com
Showing DNS history for 2026-08-12 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 |
|---|---|---|---|---|---|
| 62 | 2026-08-12 23:56 | 639221753022017039 |
|
117 ms | 170.249.233.193 |
| 61 | 2026-08-12 23:41 | 639221744107644868 |
|
2 ms | 170.249.233.193 |
| 60 | 2026-08-12 23:26 | 639221735030187244 |
|
113 ms | 170.249.233.193 |
| 59 | 2026-08-12 23:11 | 639221725815508109 |
|
116 ms | 170.249.233.193 |
| 58 | 2026-08-12 22:19 | 639221694790955973 |
|
7 ms | 170.249.233.193 |
| 57 | 2026-08-12 22:03 | 639221685562451720 |
|
110 ms | 170.249.233.193 |
| 56 | 2026-08-12 21:48 | 639221676023655289 |
|
4 ms | 170.249.233.193 |
| 55 | 2026-08-12 21:32 | 639221666449119409 |
|
122 ms | 170.249.233.193 |
| 54 | 2026-08-12 20:40 | 639221635456432556 |
|
4 ms | 170.249.233.193 |
| 53 | 2026-08-12 20:24 | 639221626313054202 |
|
114 ms | 170.249.233.193 |
| 52 | 2026-08-12 20:09 | 639221617091958857 |
|
237 ms | 170.249.233.193 |
| 51 | 2026-08-12 19:54 | 639221607786737151 |
|
2169 ms | 170.249.233.193 |
| 50 | 2026-08-12 19:02 | 639221576664330059 |
|
2115 ms | 170.249.233.193 |
| 49 | 2026-08-12 18:47 | 639221567514216674 |
|
232 ms | 170.249.233.193 |
| 48 | 2026-08-12 18:31 | 639221558399762524 |
|
117 ms | 170.249.233.193 |
| 47 | 2026-08-12 18:16 | 639221549052016282 |
|
115 ms | 170.249.233.193 |
| 46 | 2026-08-12 17:23 | 639221517673834934 |
|
116 ms | 170.249.233.193 |
| 45 | 2026-08-12 17:07 | 639221508282311633 |
|
36 ms | 170.249.233.193 |
| 44 | 2026-08-12 16:51 | 639221498786324983 |
|
111 ms | 170.249.233.193 |
| 43 | 2026-08-12 16:35 | 639221489157589737 |
|
145 ms | 170.249.233.193 |
| 42 | 2026-08-12 15:43 | 639221457655914645 |
|
126 ms | 170.249.233.193 |
| 41 | 2026-08-12 15:27 | 639221448164090526 |
|
69 ms | 170.249.233.193 |
| 40 | 2026-08-12 15:11 | 639221438725783630 |
|
4145 ms | 170.249.233.193 |
| 39 | 2026-08-12 14:55 | 639221429178071087 |
|
129 ms | 170.249.233.193 |
| 38 | 2026-08-12 14:03 | 639221397761278719 |
|
121 ms | 170.249.233.193 |
| 37 | 2026-08-12 13:47 | 639221388200567278 |
|
2144 ms | 170.249.233.193 |
| 36 | 2026-08-12 13:31 | 639221378483570949 |
|
115 ms | 170.249.233.193 |
| 35 | 2026-08-12 13:15 | 639221368872360139 |
|
114 ms | 170.249.233.193 |
| 34 | 2026-08-12 12:22 | 639221337226647415 |
|
4 ms | 170.249.233.193 |
| 33 | 2026-08-12 12:06 | 639221327924087446 |
|
226 ms | 170.249.233.193 |
| 32 | 2026-08-12 11:50 | 639221318096976375 |
|
126 ms | 170.249.233.193 |
| 31 | 2026-08-12 11:33 | 639221308343145274 |
|
216 ms | 170.249.233.193 |
| 30 | 2026-08-12 10:42 | 639221277089610470 |
|
141 ms | 170.249.233.193 |
| 29 | 2026-08-12 10:26 | 639221267628136359 |
|
228 ms | 170.249.233.193 |
| 28 | 2026-08-12 10:10 | 639221257907569952 |
|
115 ms | 170.249.233.193 |
| 27 | 2026-08-12 09:54 | 639221248402420965 |
|
229 ms | 170.249.233.193 |
| 26 | 2026-08-12 09:01 | 639221216797540533 |
|
113 ms | 170.249.233.193 |
| 25 | 2026-08-12 08:45 | 639221207385792352 |
|
111 ms | 170.249.233.193 |
| 24 | 2026-08-12 08:30 | 639221198078534844 |
|
4126 ms | 170.249.233.193 |
| 23 | 2026-08-12 08:14 | 639221188677585577 |
|
24 ms | 170.249.233.193 |
| 22 | 2026-08-12 07:22 | 639221157276484143 |
|
234 ms | 170.249.233.193 |
| 21 | 2026-08-12 07:06 | 639221147876262183 |
|
240 ms | 170.249.233.193 |
| 20 | 2026-08-12 06:50 | 639221138388812469 |
|
3 ms | 170.249.233.193 |
| 19 | 2026-08-12 06:35 | 639221128987381118 |
|
133 ms | 170.249.233.193 |
| 18 | 2026-08-12 05:43 | 639221097816416095 |
|
2013 ms | 170.249.233.193 |
| 17 | 2026-08-12 05:27 | 639221088508065616 |
|
221 ms | 170.249.233.193 |
| 16 | 2026-08-12 05:12 | 639221079092308503 |
|
11 ms | 170.249.233.193 |
| 15 | 2026-08-12 04:56 | 639221069595873597 |
|
230 ms | 170.249.233.193 |
| 14 | 2026-08-12 04:04 | 639221038601577496 |
|
233 ms | 170.249.233.193 |
| 13 | 2026-08-12 03:49 | 639221029533901299 |
|
222 ms | 170.249.233.193 |
| 12 | 2026-08-12 03:33 | 639221020333828965 |
|
229 ms | 170.249.233.193 |
| 11 | 2026-08-12 03:18 | 639221011110510484 |
|
111 ms | 170.249.233.193 |
| 10 | 2026-08-12 02:26 | 639220979815209769 |
|
127 ms | 170.249.233.193 |
| 9 | 2026-08-12 02:12 | 639220970971410921 |
|
224 ms | 170.249.233.193 |
| 8 | 2026-08-12 01:57 | 639220961848982361 |
|
193 ms | 170.249.233.193 |
| 7 | 2026-08-12 01:41 | 639220952784591501 |
|
109 ms | 170.249.233.193 |
| 6 | 2026-08-12 01:26 | 639220943893596731 |
|
31 ms | 170.249.233.193 |
| 5 | 2026-08-12 01:11 | 639220934954704520 |
|
110 ms | 170.249.233.193 |
| 4 | 2026-08-12 00:56 | 639220925792457751 |
|
115 ms | 170.249.233.193 |
| 3 | 2026-08-12 00:41 | 639220916610063538 |
|
128 ms | 170.249.233.193 |
| 2 | 2026-08-12 00:26 | 639220907229361754 |
|
262 ms | 170.249.233.193 |
| 1 | 2026-08-12 00:10 | 639220897896762127 |
|
114 ms | 170.249.233.193 |