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 2026-08-18. For this date, NameServerHistory found 75 DNS check records, 74 successful responses, 1 failed responses, and 199 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
199 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-18 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
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 2026-08-18 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 | 2026-08-18 23:52 | 639226935204800669 |
|
241 ms | 170.249.233.193 |
| 74 | 2026-08-18 23:35 | 639226925298919497 |
|
220 ms | 170.249.233.193 |
| 73 | 2026-08-18 23:19 | 639226915487885053 |
|
112 ms | 170.249.233.193 |
| 72 | 2026-08-18 23:02 | 639226905465760034 |
|
11 ms | 170.249.233.193 |
| 71 | 2026-08-18 22:45 | 639226895378104692 |
|
157 ms | 170.249.233.193 |
| 70 | 2026-08-18 21:52 | 639226863374232622 |
|
4125 ms | 170.249.233.193 |
| 69 | 2026-08-18 21:36 | 639226853698516058 |
|
235 ms | 170.249.233.193 |
| 68 | 2026-08-18 21:19 | 639226843797360601 |
|
240 ms | 170.249.233.193 |
| 67 | 2026-08-18 21:03 | 639226834046588155 |
|
235 ms | 170.249.233.193 |
| 66 | 2026-08-18 20:47 | 639226824234488533 |
|
237 ms | 170.249.233.193 |
| 65 | 2026-08-18 20:30 | 639226814549928621 |
|
223 ms | 170.249.233.193 |
| 64 | 2026-08-18 20:14 | 639226804721432353 |
|
117 ms | 170.249.233.193 |
| 63 | 2026-08-18 19:58 | 639226795048828184 |
|
220 ms | 170.249.233.193 |
| 62 | 2026-08-18 19:42 | 639226785202482420 |
|
226 ms | 170.249.233.193 |
| 61 | 2026-08-18 19:25 | 639226775309362607 |
|
223 ms | 170.249.233.193 |
| 60 | 2026-08-18 19:08 | 639226765406586155 |
|
123 ms | 170.249.233.193 |
| 59 | 2026-08-18 18:52 | 639226755437790519 |
|
231 ms | 170.249.233.193 |
| 58 | 2026-08-18 17:59 | 639226723856194457 |
|
125 ms | 170.249.233.193 |
| 57 | 2026-08-18 17:43 | 639226714050583422 |
|
13 ms | 170.249.233.193 |
| 56 | 2026-08-18 17:27 | 639226704236499724 |
|
125 ms | 170.249.233.193 |
| 55 | 2026-08-18 17:10 | 639226694184520163 |
|
172 ms | 170.249.233.193 |
| 54 | 2026-08-18 16:53 | 639226684161203477 |
|
114 ms | 170.249.233.193 |
| 53 | 2026-08-18 16:37 | 639226674305430109 |
|
129 ms | 170.249.233.193 |
| 52 | 2026-08-18 16:20 | 639226664489607984 |
|
140 ms | 170.249.233.193 |
| 51 | 2026-08-18 16:04 | 639226654533111667 |
|
119 ms | 170.249.233.193 |
| 50 | 2026-08-18 15:48 | 639226644778594725 |
|
155 ms | 170.249.233.193 |
| 49 | 2026-08-18 15:31 | 639226634901553621 |
|
220 ms | 170.249.233.193 |
| 48 | 2026-08-18 15:14 | 639226624921864967 |
|
223 ms | 170.249.233.193 |
| 47 | 2026-08-18 14:58 | 639226614939419403 |
|
161 ms | 170.249.233.193 |
| 46 | 2026-08-18 14:05 | 639226583021074771 |
|
172 ms | 170.249.233.193 |
| 45 | 2026-08-18 13:48 | 639226573279933585 |
|
- | |
| 44 | 2026-08-18 13:32 | 639226563494036301 |
|
123 ms | 170.249.233.193 |
| 43 | 2026-08-18 13:16 | 639226553708216256 |
|
229 ms | 170.249.233.193 |
| 42 | 2026-08-18 13:00 | 639226544003734815 |
|
227 ms | 170.249.233.193 |
| 41 | 2026-08-18 12:43 | 639226534105733155 |
|
107 ms | 170.249.233.193 |
| 40 | 2026-08-18 12:27 | 639226524298118898 |
|
110 ms | 170.249.233.193 |
| 39 | 2026-08-18 12:10 | 639226514525195335 |
|
124 ms | 170.249.233.193 |
| 38 | 2026-08-18 11:54 | 639226504703635320 |
|
222 ms | 170.249.233.193 |
| 37 | 2026-08-18 11:37 | 639226494737271720 |
|
34 ms | 170.249.233.193 |
| 36 | 2026-08-18 11:21 | 639226485005027236 |
|
20 ms | 170.249.233.193 |
| 35 | 2026-08-18 11:05 | 639226475133236105 |
|
151 ms | 170.249.233.193 |
| 34 | 2026-08-18 10:11 | 639226442975077052 |
|
241 ms | 170.249.233.193 |
| 33 | 2026-08-18 09:55 | 639226433317932039 |
|
135 ms | 170.249.233.193 |
| 32 | 2026-08-18 09:39 | 639226423688431096 |
|
120 ms | 170.249.233.193 |
| 31 | 2026-08-18 09:23 | 639226413998250045 |
|
135 ms | 170.249.233.193 |
| 30 | 2026-08-18 09:07 | 639226404284554875 |
|
152 ms | 170.249.233.193 |
| 29 | 2026-08-18 08:50 | 639226394637043309 |
|
128 ms | 170.249.233.193 |
| 28 | 2026-08-18 08:34 | 639226385052447582 |
|
122 ms | 170.249.233.193 |
| 27 | 2026-08-18 08:19 | 639226375506189603 |
|
288 ms | 170.249.233.193 |
| 26 | 2026-08-18 08:02 | 639226365690646426 |
|
247 ms | 170.249.233.193 |
| 25 | 2026-08-18 07:46 | 639226355771007701 |
|
236 ms | 170.249.233.193 |
| 24 | 2026-08-18 07:29 | 639226345946269369 |
|
120 ms | 170.249.233.193 |
| 23 | 2026-08-18 07:13 | 639226336241601848 |
|
245 ms | 170.249.233.193 |
| 22 | 2026-08-18 06:21 | 639226304950675290 |
|
118 ms | 170.249.233.193 |
| 21 | 2026-08-18 06:05 | 639226295324754616 |
|
135 ms | 170.249.233.193 |
| 20 | 2026-08-18 05:49 | 639226285824640601 |
|
230 ms | 170.249.233.193 |
| 19 | 2026-08-18 05:33 | 639226276321223917 |
|
13 ms | 170.249.233.193 |
| 18 | 2026-08-18 05:17 | 639226266800200046 |
|
122 ms | 170.249.233.193 |
| 17 | 2026-08-18 05:01 | 639226256958066164 |
|
11 ms | 170.249.233.193 |
| 16 | 2026-08-18 04:45 | 639226247432364597 |
|
13 ms | 170.249.233.193 |
| 15 | 2026-08-18 04:29 | 639226237703388552 |
|
118 ms | 170.249.233.193 |
| 14 | 2026-08-18 04:13 | 639226227937569589 |
|
32 ms | 170.249.233.193 |
| 13 | 2026-08-18 03:57 | 639226218052465471 |
|
8 ms | 170.249.233.193 |
| 12 | 2026-08-18 03:40 | 639226208429623997 |
|
224 ms | 170.249.233.193 |
| 11 | 2026-08-18 03:24 | 639226198800675295 |
|
112 ms | 170.249.233.193 |
| 10 | 2026-08-18 02:32 | 639226167722042574 |
|
62 ms | 170.249.233.193 |
| 9 | 2026-08-18 02:17 | 639226158277924383 |
|
112 ms | 170.249.233.193 |
| 8 | 2026-08-18 02:01 | 639226148757810592 |
|
125 ms | 170.249.233.193 |
| 7 | 2026-08-18 01:45 | 639226139348611045 |
|
113 ms | 170.249.233.193 |
| 6 | 2026-08-18 01:29 | 639226129823462907 |
|
126 ms | 170.249.233.193 |
| 5 | 2026-08-18 01:13 | 639226120218260005 |
|
7 ms | 170.249.233.193 |
| 4 | 2026-08-18 00:57 | 639226110875503904 |
|
136 ms | 170.249.233.193 |
| 3 | 2026-08-18 00:42 | 639226101376311912 |
|
133 ms | 170.249.233.193 |
| 2 | 2026-08-18 00:26 | 639226091924943492 |
|
128 ms | 170.249.233.193 |
| 1 | 2026-08-18 00:10 | 639226082133158124 |
|
108 ms | 170.249.233.193 |