History for ns2.yaohanoptical.com
Domain: yaohanoptical.com • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns2.yaohanoptical.com
ns2.yaohanoptical.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, 75 successful responses, 0 failed responses, and 447 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 ns2.yaohanoptical.com.
Records on Selected Date
75
Historical checks stored for this nameserver on selected date
Average Latency
447 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-18 23:56
All timestamps shown in UTC
Latest Resolved IP on Selected Date
198.143.128.34
Most recently resolved hosting IP on selected date
Successful Responses
75
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 ns2.yaohanoptical.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 23:56 | 639226935204800669 |
|
191 ms | 198.143.128.34 |
| 74 | 2026-08-18 23:39 | 639226925298919497 |
|
292 ms | 198.143.128.34 |
| 73 | 2026-08-18 23:23 | 639226915487885053 |
|
296 ms | 198.143.128.34 |
| 72 | 2026-08-18 23:06 | 639226905465760034 |
|
291 ms | 198.143.128.34 |
| 71 | 2026-08-18 22:50 | 639226895378104692 |
|
290 ms | 198.143.128.34 |
| 70 | 2026-08-18 21:56 | 639226863374232622 |
|
290 ms | 198.143.128.34 |
| 69 | 2026-08-18 21:40 | 639226853698516058 |
|
149 ms | 198.143.128.34 |
| 68 | 2026-08-18 21:23 | 639226843797360601 |
|
293 ms | 198.143.128.34 |
| 67 | 2026-08-18 21:07 | 639226834046588155 |
|
306 ms | 198.143.128.34 |
| 66 | 2026-08-18 20:51 | 639226824234488533 |
|
293 ms | 198.143.128.34 |
| 65 | 2026-08-18 20:34 | 639226814549928621 |
|
291 ms | 198.143.128.34 |
| 64 | 2026-08-18 20:18 | 639226804721432353 |
|
296 ms | 198.143.128.34 |
| 63 | 2026-08-18 20:02 | 639226795048828184 |
|
295 ms | 198.143.128.34 |
| 62 | 2026-08-18 19:46 | 639226785202482420 |
|
299 ms | 198.143.128.34 |
| 61 | 2026-08-18 19:29 | 639226775309362607 |
|
294 ms | 198.143.128.34 |
| 60 | 2026-08-18 19:13 | 639226765406586155 |
|
294 ms | 198.143.128.34 |
| 59 | 2026-08-18 18:56 | 639226755437790519 |
|
293 ms | 198.143.128.34 |
| 58 | 2026-08-18 18:03 | 639226723856194457 |
|
290 ms | 198.143.128.34 |
| 57 | 2026-08-18 17:47 | 639226714050583422 |
|
290 ms | 198.143.128.34 |
| 56 | 2026-08-18 17:31 | 639226704236499724 |
|
292 ms | 198.143.128.34 |
| 55 | 2026-08-18 17:14 | 639226694184520163 |
|
291 ms | 198.143.128.34 |
| 54 | 2026-08-18 16:57 | 639226684161203477 |
|
157 ms | 198.143.128.34 |
| 53 | 2026-08-18 16:41 | 639226674305430109 |
|
313 ms | 198.143.128.34 |
| 52 | 2026-08-18 16:24 | 639226664489607984 |
|
292 ms | 198.143.128.34 |
| 51 | 2026-08-18 16:08 | 639226654533111667 |
|
296 ms | 198.143.128.34 |
| 50 | 2026-08-18 15:52 | 639226644778594725 |
|
291 ms | 198.143.128.34 |
| 49 | 2026-08-18 15:35 | 639226634901553621 |
|
295 ms | 198.143.128.34 |
| 48 | 2026-08-18 15:19 | 639226624921864967 |
|
292 ms | 198.143.128.34 |
| 47 | 2026-08-18 15:02 | 639226614939419403 |
|
297 ms | 198.143.128.34 |
| 46 | 2026-08-18 14:09 | 639226583021074771 |
|
297 ms | 198.143.128.34 |
| 45 | 2026-08-18 13:52 | 639226573279933585 |
|
292 ms | 198.143.128.34 |
| 44 | 2026-08-18 13:36 | 639226563494036301 |
|
298 ms | 198.143.128.34 |
| 43 | 2026-08-18 13:20 | 639226553708216256 |
|
2186 ms | 198.143.128.34 |
| 42 | 2026-08-18 13:04 | 639226544003734815 |
|
2154 ms | 198.143.128.34 |
| 41 | 2026-08-18 12:47 | 639226534105733155 |
|
151 ms | 198.143.128.34 |
| 40 | 2026-08-18 12:31 | 639226524298118898 |
|
295 ms | 198.143.128.34 |
| 39 | 2026-08-18 12:14 | 639226514525195335 |
|
294 ms | 198.143.128.34 |
| 38 | 2026-08-18 11:58 | 639226504703635320 |
|
291 ms | 198.143.128.34 |
| 37 | 2026-08-18 11:42 | 639226494737271720 |
|
291 ms | 198.143.128.34 |
| 36 | 2026-08-18 11:25 | 639226485005027236 |
|
293 ms | 198.143.128.34 |
| 35 | 2026-08-18 11:09 | 639226475133236105 |
|
148 ms | 198.143.128.34 |
| 34 | 2026-08-18 10:15 | 639226442975077052 |
|
2279 ms | 198.143.128.34 |
| 33 | 2026-08-18 09:59 | 639226433317932039 |
|
294 ms | 198.143.128.34 |
| 32 | 2026-08-18 09:43 | 639226423688431096 |
|
288 ms | 198.143.128.34 |
| 31 | 2026-08-18 09:27 | 639226413998250045 |
|
291 ms | 198.143.128.34 |
| 30 | 2026-08-18 09:11 | 639226404284554875 |
|
157 ms | 198.143.128.34 |
| 29 | 2026-08-18 08:55 | 639226394637043309 |
|
293 ms | 198.143.128.34 |
| 28 | 2026-08-18 08:38 | 639226385052447582 |
|
297 ms | 198.143.128.34 |
| 27 | 2026-08-18 08:23 | 639226375506189603 |
|
2154 ms | 198.143.128.34 |
| 26 | 2026-08-18 08:06 | 639226365690646426 |
|
174 ms | 198.143.128.34 |
| 25 | 2026-08-18 07:50 | 639226355771007701 |
|
289 ms | 198.143.128.34 |
| 24 | 2026-08-18 07:34 | 639226345946269369 |
|
190 ms | 198.143.128.34 |
| 23 | 2026-08-18 07:17 | 639226336241601848 |
|
292 ms | 198.143.128.34 |
| 22 | 2026-08-18 06:25 | 639226304950675290 |
|
293 ms | 198.143.128.34 |
| 21 | 2026-08-18 06:09 | 639226295324754616 |
|
190 ms | 198.143.128.34 |
| 20 | 2026-08-18 05:53 | 639226285824640601 |
|
293 ms | 198.143.128.34 |
| 19 | 2026-08-18 05:37 | 639226276321223917 |
|
155 ms | 198.143.128.34 |
| 18 | 2026-08-18 05:21 | 639226266800200046 |
|
155 ms | 198.143.128.34 |
| 17 | 2026-08-18 05:05 | 639226256958066164 |
|
289 ms | 198.143.128.34 |
| 16 | 2026-08-18 04:49 | 639226247432364597 |
|
290 ms | 198.143.128.34 |
| 15 | 2026-08-18 04:33 | 639226237703388552 |
|
292 ms | 198.143.128.34 |
| 14 | 2026-08-18 04:17 | 639226227937569589 |
|
2150 ms | 198.143.128.34 |
| 13 | 2026-08-18 04:01 | 639226218052465471 |
|
2162 ms | 198.143.128.34 |
| 12 | 2026-08-18 03:44 | 639226208429623997 |
|
2185 ms | 198.143.128.34 |
| 11 | 2026-08-18 03:28 | 639226198800675295 |
|
161 ms | 198.143.128.34 |
| 10 | 2026-08-18 02:36 | 639226167722042574 |
|
290 ms | 198.143.128.34 |
| 9 | 2026-08-18 02:21 | 639226158277924383 |
|
289 ms | 198.143.128.34 |
| 8 | 2026-08-18 02:05 | 639226148757810592 |
|
186 ms | 198.143.128.34 |
| 7 | 2026-08-18 01:49 | 639226139348611045 |
|
289 ms | 198.143.128.34 |
| 6 | 2026-08-18 01:33 | 639226129823462907 |
|
289 ms | 198.143.128.34 |
| 5 | 2026-08-18 01:17 | 639226120218260005 |
|
288 ms | 198.143.128.34 |
| 4 | 2026-08-18 01:01 | 639226110875503904 |
|
293 ms | 198.143.128.34 |
| 3 | 2026-08-18 00:46 | 639226101376311912 |
|
287 ms | 198.143.128.34 |
| 2 | 2026-08-18 00:30 | 639226091924943492 |
|
288 ms | 198.143.128.34 |
| 1 | 2026-08-18 00:14 | 639226082133158124 |
|
289 ms | 198.143.128.34 |