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 2026-08-09. For this date, NameServerHistory found 78 DNS check records, 75 successful responses, 3 failed responses, and 329 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
78
Historical checks stored for this nameserver on selected date
Average Latency
329 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-09 23:16
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
75
Checks that returned a measurable response
Failed Responses
3
Checks with no response or no returned latency
Failure Rate
4%
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 2026-08-09 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 |
|---|---|---|---|---|---|
| 78 | 2026-08-09 23:16 | 639219137912168440 |
|
324 ms | 170.249.233.193 |
| 77 | 2026-08-09 23:01 | 639219129014206359 |
|
210 ms | 170.249.233.193 |
| 76 | 2026-08-09 22:47 | 639219120129816185 |
|
249 ms | 170.249.233.193 |
| 75 | 2026-08-09 22:32 | 639219111180200055 |
|
167 ms | 170.249.233.193 |
| 74 | 2026-08-09 22:17 | 639219102397272208 |
|
- | |
| 73 | 2026-08-09 22:02 | 639219093318422880 |
|
- | |
| 72 | 2026-08-09 21:47 | 639219084400315753 |
|
114 ms | 170.249.233.193 |
| 71 | 2026-08-09 21:32 | 639219075254551587 |
|
- | |
| 70 | 2026-08-09 21:16 | 639219065729192158 |
|
167 ms | 170.249.233.193 |
| 69 | 2026-08-09 21:01 | 639219056747802098 |
|
345 ms | 170.249.233.193 |
| 68 | 2026-08-09 20:46 | 639219047713450952 |
|
123 ms | 170.249.233.193 |
| 67 | 2026-08-09 20:31 | 639219038561445315 |
|
293 ms | 170.249.233.193 |
| 66 | 2026-08-09 19:39 | 639219007390383771 |
|
119 ms | 170.249.233.193 |
| 65 | 2026-08-09 19:25 | 639218998523265596 |
|
129 ms | 170.249.233.193 |
| 64 | 2026-08-09 19:10 | 639218989631630804 |
|
133 ms | 170.249.233.193 |
| 63 | 2026-08-09 18:55 | 639218980808450892 |
|
159 ms | 170.249.233.193 |
| 62 | 2026-08-09 18:40 | 639218971852160604 |
|
269 ms | 170.249.233.193 |
| 61 | 2026-08-09 18:25 | 639218962783650906 |
|
259 ms | 170.249.233.193 |
| 60 | 2026-08-09 18:10 | 639218953792820819 |
|
54 ms | 170.249.233.193 |
| 59 | 2026-08-09 17:55 | 639218944959692876 |
|
128 ms | 170.249.233.193 |
| 58 | 2026-08-09 17:40 | 639218936169104506 |
|
145 ms | 170.249.233.193 |
| 57 | 2026-08-09 17:26 | 639218927166062556 |
|
168 ms | 170.249.233.193 |
| 56 | 2026-08-09 17:10 | 639218918015715420 |
|
138 ms | 170.249.233.193 |
| 55 | 2026-08-09 16:55 | 639218908881852638 |
|
129 ms | 170.249.233.193 |
| 54 | 2026-08-09 16:05 | 639218877956262035 |
|
114 ms | 170.249.233.193 |
| 53 | 2026-08-09 15:50 | 639218869143729797 |
|
111 ms | 170.249.233.193 |
| 52 | 2026-08-09 15:35 | 639218860485298832 |
|
138 ms | 170.249.233.193 |
| 51 | 2026-08-09 15:21 | 639218851607906747 |
|
111 ms | 170.249.233.193 |
| 50 | 2026-08-09 15:06 | 639218842720839568 |
|
7 ms | 170.249.233.193 |
| 49 | 2026-08-09 14:51 | 639218833878788864 |
|
130 ms | 170.249.233.193 |
| 48 | 2026-08-09 14:36 | 639218825180862573 |
|
120 ms | 170.249.233.193 |
| 47 | 2026-08-09 14:22 | 639218816469621951 |
|
34 ms | 170.249.233.193 |
| 46 | 2026-08-09 14:07 | 639218807685036212 |
|
181 ms | 170.249.233.193 |
| 45 | 2026-08-09 13:53 | 639218798978271509 |
|
114 ms | 170.249.233.193 |
| 44 | 2026-08-09 13:38 | 639218790065423597 |
|
136 ms | 170.249.233.193 |
| 43 | 2026-08-09 13:23 | 639218781304584862 |
|
156 ms | 170.249.233.193 |
| 42 | 2026-08-09 12:31 | 639218750311179000 |
|
111 ms | 170.249.233.193 |
| 41 | 2026-08-09 12:17 | 639218741750420268 |
|
122 ms | 170.249.233.193 |
| 40 | 2026-08-09 12:02 | 639218733057535576 |
|
249 ms | 170.249.233.193 |
| 39 | 2026-08-09 11:48 | 639218724471329044 |
|
238 ms | 170.249.233.193 |
| 38 | 2026-08-09 11:34 | 639218715911974203 |
|
123 ms | 170.249.233.193 |
| 37 | 2026-08-09 11:19 | 639218707310812834 |
|
112 ms | 170.249.233.193 |
| 36 | 2026-08-09 11:05 | 639218698790485612 |
|
2116 ms | 170.249.233.193 |
| 35 | 2026-08-09 10:51 | 639218690367692706 |
|
197 ms | 170.249.233.193 |
| 34 | 2026-08-09 10:37 | 639218681923173883 |
|
9 ms | 170.249.233.193 |
| 33 | 2026-08-09 10:23 | 639218673547179738 |
|
2189 ms | 170.249.233.193 |
| 32 | 2026-08-09 10:08 | 639218664890274867 |
|
176 ms | 170.249.233.193 |
| 31 | 2026-08-09 09:54 | 639218656036928157 |
|
238 ms | 170.249.233.193 |
| 30 | 2026-08-09 09:03 | 639218624808018222 |
|
121 ms | 170.249.233.193 |
| 29 | 2026-08-09 08:48 | 639218616243340806 |
|
4 ms | 170.249.233.193 |
| 28 | 2026-08-09 08:34 | 639218607397811973 |
|
119 ms | 170.249.233.193 |
| 27 | 2026-08-09 08:19 | 639218598812444454 |
|
111 ms | 170.249.233.193 |
| 26 | 2026-08-09 08:05 | 639218590219570048 |
|
129 ms | 170.249.233.193 |
| 25 | 2026-08-09 07:50 | 639218581690210758 |
|
8 ms | 170.249.233.193 |
| 24 | 2026-08-09 07:36 | 639218573057388822 |
|
3 ms | 170.249.233.193 |
| 23 | 2026-08-09 07:22 | 639218564408781785 |
|
3 ms | 170.249.233.193 |
| 22 | 2026-08-09 07:07 | 639218555767188482 |
|
4 ms | 170.249.233.193 |
| 21 | 2026-08-09 06:53 | 639218547142705295 |
|
259 ms | 170.249.233.193 |
| 20 | 2026-08-09 06:38 | 639218538090114532 |
|
2127 ms | 170.249.233.193 |
| 19 | 2026-08-09 06:23 | 639218529257910584 |
|
135 ms | 170.249.233.193 |
| 18 | 2026-08-09 05:31 | 639218498473231858 |
|
241 ms | 170.249.233.193 |
| 17 | 2026-08-09 05:17 | 639218489802113995 |
|
249 ms | 170.249.233.193 |
| 16 | 2026-08-09 05:02 | 639218481006804516 |
|
9 ms | 170.249.233.193 |
| 15 | 2026-08-09 04:47 | 639218472048712427 |
|
18 ms | 170.249.233.193 |
| 14 | 2026-08-09 04:32 | 639218463224432974 |
|
126 ms | 170.249.233.193 |
| 13 | 2026-08-09 04:18 | 639218454384107526 |
|
238 ms | 170.249.233.193 |
| 12 | 2026-08-09 04:02 | 639218445331231791 |
|
117 ms | 170.249.233.193 |
| 11 | 2026-08-09 03:47 | 639218436285215733 |
|
122 ms | 170.249.233.193 |
| 10 | 2026-08-09 03:33 | 639218427289555123 |
|
2114 ms | 170.249.233.193 |
| 9 | 2026-08-09 03:17 | 639218418227819981 |
|
2129 ms | 170.249.233.193 |
| 8 | 2026-08-09 03:02 | 639218409119503123 |
|
123 ms | 170.249.233.193 |
| 7 | 2026-08-09 02:47 | 639218399771712154 |
|
126 ms | 170.249.233.193 |
| 6 | 2026-08-09 01:54 | 639218368648652303 |
|
2228 ms | 170.249.233.193 |
| 5 | 2026-08-09 01:39 | 639218359569598460 |
|
2009 ms | 170.249.233.193 |
| 4 | 2026-08-09 01:24 | 639218350555429902 |
|
253 ms | 170.249.233.193 |
| 3 | 2026-08-09 01:08 | 639218341311543299 |
|
266 ms | 170.249.233.193 |
| 2 | 2026-08-09 00:16 | 639218309981981465 |
|
133 ms | 170.249.233.193 |
| 1 | 2026-08-09 00:01 | 639218300987184335 |
|
113 ms | 170.249.233.193 |