DNS response history for ns12.questdiagnostics.com

ns12.questdiagnostics.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 2026-08-28. For this date, NameServerHistory found 16 DNS check records, 16 successful responses, 0 failed responses, and 264 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 ns12.questdiagnostics.com.
Records on Selected Date

16

Historical checks stored for this nameserver on selected date

Average Latency

264 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-28 06:17

All timestamps shown in UTC

Latest Resolved IP on Selected Date

216.203.95.73

Most recently resolved hosting IP on selected date

Successful Responses

16

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 ns12.questdiagnostics.com

Showing DNS history for 2026-08-28 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
16 2026-08-28 06:17 639234942529845595
126 ms 216.203.95.73
15 2026-08-28 06:00 639234932259126627
212 ms 216.203.95.73
14 2026-08-28 05:42 639234921916735988
2222 ms 216.203.95.73
13 2026-08-28 05:25 639234911470038027
107 ms 216.203.95.73
12 2026-08-28 04:32 639234879588411654
155 ms 216.203.95.73
11 2026-08-28 04:15 639234869341589104
120 ms 216.203.95.73
10 2026-08-28 03:58 639234859012216675
209 ms 216.203.95.73
9 2026-08-28 03:40 639234848695364934
236 ms 216.203.95.73
8 2026-08-28 02:47 639234816952458162
118 ms 216.203.95.73
7 2026-08-28 02:31 639234806773081598
112 ms 216.203.95.73
6 2026-08-28 02:13 639234796382955255
157 ms 216.203.95.73
5 2026-08-28 01:56 639234786015782563
145 ms 216.203.95.73
4 2026-08-28 01:02 639234753811917646
31 ms 216.203.95.73
3 2026-08-28 00:45 639234743739767811
7 ms 216.203.95.73
2 2026-08-28 00:28 639234733372362811
177 ms 216.203.95.73
1 2026-08-28 00:11 639234723048550337
97 ms 216.203.95.73