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 2026-08-23. For this date, NameServerHistory found 75 DNS check records, 74 successful responses, 1 failed responses, and 248 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
75
Historical checks stored for this nameserver on selected date
Average Latency
248 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-23 23:51
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
74
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 ns21.cfirsthost.com
Showing DNS history for 2026-08-23 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 |
|---|---|---|---|---|---|
| 75 | 2026-08-23 23:51 | 639231254406598736 |
|
214 ms | 170.249.233.193 |
| 74 | 2026-08-23 23:34 | 639231244697865594 |
|
152 ms | 170.249.233.193 |
| 73 | 2026-08-23 23:18 | 639231234893504693 |
|
235 ms | 170.249.233.193 |
| 72 | 2026-08-23 23:01 | 639231225024549139 |
|
265 ms | 170.249.233.193 |
| 71 | 2026-08-23 22:45 | 639231214931957622 |
|
212 ms | 170.249.233.193 |
| 70 | 2026-08-23 22:28 | 639231204962010549 |
|
116 ms | 170.249.233.193 |
| 69 | 2026-08-23 22:12 | 639231195170138463 |
|
113 ms | 170.249.233.193 |
| 68 | 2026-08-23 21:55 | 639231185235020577 |
|
278 ms | 170.249.233.193 |
| 67 | 2026-08-23 21:39 | 639231175558690075 |
|
282 ms | 170.249.233.193 |
| 66 | 2026-08-23 21:22 | 639231165610444012 |
|
227 ms | 170.249.233.193 |
| 65 | 2026-08-23 20:29 | 639231133806425363 |
|
10 ms | 170.249.233.193 |
| 64 | 2026-08-23 20:13 | 639231124203758023 |
|
114 ms | 170.249.233.193 |
| 63 | 2026-08-23 19:57 | 639231114428262706 |
|
123 ms | 170.249.233.193 |
| 62 | 2026-08-23 19:41 | 639231104662480065 |
|
117 ms | 170.249.233.193 |
| 61 | 2026-08-23 19:25 | 639231094840372018 |
|
114 ms | 170.249.233.193 |
| 60 | 2026-08-23 19:08 | 639231085024583224 |
|
129 ms | 170.249.233.193 |
| 59 | 2026-08-23 18:52 | 639231075257417427 |
|
124 ms | 170.249.233.193 |
| 58 | 2026-08-23 18:36 | 639231065516009503 |
|
20 ms | 170.249.233.193 |
| 57 | 2026-08-23 18:19 | 639231055805348837 |
|
142 ms | 170.249.233.193 |
| 56 | 2026-08-23 18:03 | 639231045980373765 |
|
107 ms | 170.249.233.193 |
| 55 | 2026-08-23 17:47 | 639231035984577527 |
|
248 ms | 170.249.233.193 |
| 54 | 2026-08-23 17:30 | 639231025928115303 |
|
9 ms | 170.249.233.193 |
| 53 | 2026-08-23 16:37 | 639230994250157583 |
|
113 ms | 170.249.233.193 |
| 52 | 2026-08-23 16:21 | 639230984476411369 |
|
267 ms | 170.249.233.193 |
| 51 | 2026-08-23 16:04 | 639230974838373450 |
|
227 ms | 170.249.233.193 |
| 50 | 2026-08-23 15:48 | 639230965244277645 |
|
11 ms | 170.249.233.193 |
| 49 | 2026-08-23 15:32 | 639230955522101820 |
|
22 ms | 170.249.233.193 |
| 48 | 2026-08-23 15:16 | 639230945754521603 |
|
111 ms | 170.249.233.193 |
| 47 | 2026-08-23 15:00 | 639230935852040504 |
|
231 ms | 170.249.233.193 |
| 46 | 2026-08-23 14:43 | 639230926222061048 |
|
133 ms | 170.249.233.193 |
| 45 | 2026-08-23 14:27 | 639230916449726907 |
|
246 ms | 170.249.233.193 |
| 44 | 2026-08-23 14:11 | 639230906595053086 |
|
142 ms | 170.249.233.193 |
| 43 | 2026-08-23 13:54 | 639230896680429441 |
|
125 ms | 170.249.233.193 |
| 42 | 2026-08-23 13:37 | 639230886630210965 |
|
234 ms | 170.249.233.193 |
| 41 | 2026-08-23 12:46 | 639230855430405719 |
|
116 ms | 170.249.233.193 |
| 40 | 2026-08-23 12:29 | 639230845707499136 |
|
2141 ms | 170.249.233.193 |
| 39 | 2026-08-23 12:13 | 639230836186805419 |
|
16 ms | 170.249.233.193 |
| 38 | 2026-08-23 11:57 | 639230826493828316 |
|
226 ms | 170.249.233.193 |
| 37 | 2026-08-23 11:41 | 639230816817882996 |
|
2112 ms | 170.249.233.193 |
| 36 | 2026-08-23 11:25 | 639230806933854189 |
|
2114 ms | 170.249.233.193 |
| 35 | 2026-08-23 11:08 | 639230797120243854 |
|
234 ms | 170.249.233.193 |
| 34 | 2026-08-23 10:52 | 639230787310272840 |
|
123 ms | 170.249.233.193 |
| 33 | 2026-08-23 10:36 | 639230777600173142 |
|
131 ms | 170.249.233.193 |
| 32 | 2026-08-23 10:19 | 639230767665024593 |
|
- | |
| 31 | 2026-08-23 10:03 | 639230757720962293 |
|
109 ms | 170.249.233.193 |
| 30 | 2026-08-23 09:46 | 639230747722189784 |
|
141 ms | 170.249.233.193 |
| 29 | 2026-08-23 08:54 | 639230716313923480 |
|
4 ms | 170.249.233.193 |
| 28 | 2026-08-23 08:38 | 639230706813835990 |
|
318 ms | 170.249.233.193 |
| 27 | 2026-08-23 08:21 | 639230696871062203 |
|
186 ms | 170.249.233.193 |
| 26 | 2026-08-23 08:05 | 639230687142781616 |
|
227 ms | 170.249.233.193 |
| 25 | 2026-08-23 07:49 | 639230677432142227 |
|
222 ms | 170.249.233.193 |
| 24 | 2026-08-23 07:33 | 639230667686258061 |
|
4 ms | 170.249.233.193 |
| 23 | 2026-08-23 07:17 | 639230658039243685 |
|
12 ms | 170.249.233.193 |
| 22 | 2026-08-23 07:00 | 639230648468473803 |
|
233 ms | 170.249.233.193 |
| 21 | 2026-08-23 06:44 | 639230638829658294 |
|
136 ms | 170.249.233.193 |
| 20 | 2026-08-23 06:28 | 639230629247017617 |
|
120 ms | 170.249.233.193 |
| 19 | 2026-08-23 06:12 | 639230619625318239 |
|
9 ms | 170.249.233.193 |
| 18 | 2026-08-23 05:56 | 639230609697630264 |
|
127 ms | 170.249.233.193 |
| 17 | 2026-08-23 05:04 | 639230578570131864 |
|
44 ms | 170.249.233.193 |
| 16 | 2026-08-23 04:48 | 639230568958963168 |
|
239 ms | 170.249.233.193 |
| 15 | 2026-08-23 04:32 | 639230559287611211 |
|
230 ms | 170.249.233.193 |
| 14 | 2026-08-23 04:16 | 639230549524312030 |
|
112 ms | 170.249.233.193 |
| 13 | 2026-08-23 03:59 | 639230539739801669 |
|
7 ms | 170.249.233.193 |
| 12 | 2026-08-23 03:43 | 639230530084069375 |
|
160 ms | 170.249.233.193 |
| 11 | 2026-08-23 03:27 | 639230520362691441 |
|
220 ms | 170.249.233.193 |
| 10 | 2026-08-23 03:11 | 639230510677194518 |
|
5 ms | 170.249.233.193 |
| 9 | 2026-08-23 02:55 | 639230501156002646 |
|
252 ms | 170.249.233.193 |
| 8 | 2026-08-23 02:39 | 639230491502198541 |
|
21 ms | 170.249.233.193 |
| 7 | 2026-08-23 02:23 | 639230481860318494 |
|
119 ms | 170.249.233.193 |
| 6 | 2026-08-23 02:06 | 639230471893008575 |
|
133 ms | 170.249.233.193 |
| 5 | 2026-08-23 01:13 | 639230440030877421 |
|
23 ms | 170.249.233.193 |
| 4 | 2026-08-23 00:57 | 639230430479725508 |
|
131 ms | 170.249.233.193 |
| 3 | 2026-08-23 00:41 | 639230420875160219 |
|
2003 ms | 170.249.233.193 |
| 2 | 2026-08-23 00:25 | 639230411240692575 |
|
262 ms | 170.249.233.193 |
| 1 | 2026-08-23 00:09 | 639230401550806607 |
|
120 ms | 170.249.233.193 |