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 2026-08-16. For this date, NameServerHistory found 61 DNS check records, 61 successful responses, 0 failed responses, and 253 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
61
Historical checks stored for this nameserver on selected date
Average Latency
253 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-16 23:52
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
61
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 2026-08-16 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 |
|---|---|---|---|---|---|
| 61 | 2026-08-16 23:52 | 639225207490611656 |
|
148 ms | 170.249.233.193 |
| 60 | 2026-08-16 23:36 | 639225198045815385 |
|
224 ms | 170.249.233.193 |
| 59 | 2026-08-16 22:44 | 639225166825544741 |
|
240 ms | 170.249.233.193 |
| 58 | 2026-08-16 22:29 | 639225157549461269 |
|
234 ms | 170.249.233.193 |
| 57 | 2026-08-16 22:13 | 639225147914556308 |
|
124 ms | 170.249.233.193 |
| 56 | 2026-08-16 21:57 | 639225138472322960 |
|
2142 ms | 170.249.233.193 |
| 55 | 2026-08-16 21:05 | 639225107211236826 |
|
223 ms | 170.249.233.193 |
| 54 | 2026-08-16 20:49 | 639225097684457510 |
|
10 ms | 170.249.233.193 |
| 53 | 2026-08-16 20:33 | 639225087942913396 |
|
229 ms | 170.249.233.193 |
| 52 | 2026-08-16 20:17 | 639225078238684183 |
|
239 ms | 170.249.233.193 |
| 51 | 2026-08-16 19:24 | 639225046944151094 |
|
110 ms | 170.249.233.193 |
| 50 | 2026-08-16 19:08 | 639225037234857231 |
|
127 ms | 170.249.233.193 |
| 49 | 2026-08-16 18:52 | 639225027423459920 |
|
123 ms | 170.249.233.193 |
| 48 | 2026-08-16 18:36 | 639225017891613027 |
|
111 ms | 170.249.233.193 |
| 47 | 2026-08-16 17:43 | 639224986298183527 |
|
111 ms | 170.249.233.193 |
| 46 | 2026-08-16 17:27 | 639224976567107023 |
|
199 ms | 170.249.233.193 |
| 45 | 2026-08-16 17:11 | 639224966709723386 |
|
112 ms | 170.249.233.193 |
| 44 | 2026-08-16 16:55 | 639224957175756942 |
|
2115 ms | 170.249.233.193 |
| 43 | 2026-08-16 16:02 | 639224925782379869 |
|
14 ms | 170.249.233.193 |
| 42 | 2026-08-16 15:47 | 639224916429532459 |
|
125 ms | 170.249.233.193 |
| 41 | 2026-08-16 15:31 | 639224906878325623 |
|
216 ms | 170.249.233.193 |
| 40 | 2026-08-16 15:15 | 639224897258974385 |
|
231 ms | 170.249.233.193 |
| 39 | 2026-08-16 14:23 | 639224866169532828 |
|
152 ms | 170.249.233.193 |
| 38 | 2026-08-16 14:07 | 639224856561831915 |
|
158 ms | 170.249.233.193 |
| 37 | 2026-08-16 13:51 | 639224846830897794 |
|
221 ms | 170.249.233.193 |
| 36 | 2026-08-16 13:35 | 639224836975863283 |
|
217 ms | 170.249.233.193 |
| 35 | 2026-08-16 12:41 | 639224804985340946 |
|
233 ms | 170.249.233.193 |
| 34 | 2026-08-16 12:25 | 639224795567782333 |
|
245 ms | 170.249.233.193 |
| 33 | 2026-08-16 12:10 | 639224785914225250 |
|
2111 ms | 170.249.233.193 |
| 32 | 2026-08-16 11:54 | 639224776383854998 |
|
257 ms | 170.249.233.193 |
| 31 | 2026-08-16 11:01 | 639224744252113993 |
|
224 ms | 170.249.233.193 |
| 30 | 2026-08-16 10:44 | 639224734238905542 |
|
138 ms | 170.249.233.193 |
| 29 | 2026-08-16 10:27 | 639224724335031221 |
|
228 ms | 170.249.233.193 |
| 28 | 2026-08-16 10:11 | 639224714475244430 |
|
109 ms | 170.249.233.193 |
| 27 | 2026-08-16 09:15 | 639224681063874153 |
|
214 ms | 170.249.233.193 |
| 26 | 2026-08-16 08:59 | 639224671038956665 |
|
117 ms | 170.249.233.193 |
| 25 | 2026-08-16 08:42 | 639224661079806122 |
|
218 ms | 170.249.233.193 |
| 24 | 2026-08-16 08:25 | 639224651169993038 |
|
110 ms | 170.249.233.193 |
| 23 | 2026-08-16 07:31 | 639224618882283050 |
|
118 ms | 170.249.233.193 |
| 22 | 2026-08-16 07:16 | 639224609519965372 |
|
109 ms | 170.249.233.193 |
| 21 | 2026-08-16 07:00 | 639224599969658888 |
|
218 ms | 170.249.233.193 |
| 20 | 2026-08-16 06:44 | 639224590360343307 |
|
265 ms | 170.249.233.193 |
| 19 | 2026-08-16 05:51 | 639224558901831832 |
|
54 ms | 170.249.233.193 |
| 18 | 2026-08-16 05:36 | 639224549678210576 |
|
14 ms | 170.249.233.193 |
| 17 | 2026-08-16 05:21 | 639224540433420642 |
|
145 ms | 170.249.233.193 |
| 16 | 2026-08-16 05:05 | 639224531046032443 |
|
217 ms | 170.249.233.193 |
| 15 | 2026-08-16 04:13 | 639224499638024410 |
|
122 ms | 170.249.233.193 |
| 14 | 2026-08-16 03:57 | 639224490358783451 |
|
130 ms | 170.249.233.193 |
| 13 | 2026-08-16 03:42 | 639224481111410545 |
|
115 ms | 170.249.233.193 |
| 12 | 2026-08-16 03:26 | 639224471809153772 |
|
130 ms | 170.249.233.193 |
| 11 | 2026-08-16 02:34 | 639224440124457324 |
|
109 ms | 170.249.233.193 |
| 10 | 2026-08-16 02:19 | 639224430921105721 |
|
124 ms | 170.249.233.193 |
| 9 | 2026-08-16 02:03 | 639224421455433103 |
|
126 ms | 170.249.233.193 |
| 8 | 2026-08-16 01:47 | 639224412089740331 |
|
253 ms | 170.249.233.193 |
| 7 | 2026-08-16 01:32 | 639224403168392868 |
|
214 ms | 170.249.233.193 |
| 6 | 2026-08-16 01:17 | 639224393856251387 |
|
143 ms | 170.249.233.193 |
| 5 | 2026-08-16 01:01 | 639224384677141438 |
|
116 ms | 170.249.233.193 |
| 4 | 2026-08-16 00:46 | 639224375597986398 |
|
112 ms | 170.249.233.193 |
| 3 | 2026-08-16 00:31 | 639224366430296466 |
|
20 ms | 170.249.233.193 |
| 2 | 2026-08-16 00:15 | 639224357218176789 |
|
120 ms | 170.249.233.193 |
| 1 | 2026-08-16 00:00 | 639224347685767174 |
|
111 ms | 170.249.233.193 |