DNS response history for ns1.questdiagnostics.com

ns1.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 2026-08-22. For this date, NameServerHistory found 74 DNS check records, 73 successful responses, 1 failed responses, and 184 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 ns1.questdiagnostics.com.
Records on Selected Date

74

Historical checks stored for this nameserver on selected date

Average Latency

184 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-22 23:54

All timestamps shown in UTC

Latest Resolved IP on Selected Date

216.203.80.72

Most recently resolved hosting IP on selected date

Successful Responses

73

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 ns1.questdiagnostics.com

Showing DNS history for 2026-08-22 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
74 2026-08-22 23:54 639230391807229016
208 ms 216.203.80.72
73 2026-08-22 23:38 639230382051619327
114 ms 216.203.80.72
72 2026-08-22 23:22 639230372323353529
31 ms 216.203.80.72
71 2026-08-22 23:06 639230362586451064
101 ms 216.203.80.72
70 2026-08-22 22:49 639230352793666303
207 ms 216.203.80.72
69 2026-08-22 22:32 639230342775737758
110 ms 216.203.80.72
68 2026-08-22 22:16 639230332639939561
217 ms 216.203.80.72
67 2026-08-22 21:23 639230301014190104
111 ms 216.203.80.72
66 2026-08-22 21:06 639230291048161498
102 ms 216.203.80.72
65 2026-08-22 20:49 639230280894353664
102 ms 216.203.80.72
64 2026-08-22 20:32 639230270699419073
134 ms 216.203.80.72
63 2026-08-22 20:15 639230260248163050
144 ms 216.203.80.72
62 2026-08-22 19:58 639230250122494282
154 ms 216.203.80.72
61 2026-08-22 19:41 639230239972935046
92 ms 216.203.80.72
60 2026-08-22 19:24 639230229963262464
109 ms 216.203.80.72
59 2026-08-22 19:08 639230220033804658
99 ms 216.203.80.72
58 2026-08-22 18:51 639230209891107289
104 ms 216.203.80.72
57 2026-08-22 18:34 639230199630298717
96 ms 216.203.80.72
56 2026-08-22 18:17 639230189301984150
117 ms 216.203.80.72
55 2026-08-22 17:23 639230157138468804
145 ms 216.203.80.72
54 2026-08-22 17:06 639230146987869495
148 ms 216.203.80.72
53 2026-08-22 16:49 639230136768638516
2107 ms 216.203.80.72
52 2026-08-22 16:32 639230126735907877
137 ms 216.203.80.72
51 2026-08-22 16:16 639230116551187768
98 ms 216.203.80.72
50 2026-08-22 15:58 639230106335615913
129 ms 216.203.80.72
49 2026-08-22 15:41 639230096177758176
110 ms 216.203.80.72
48 2026-08-22 15:25 639230086185999993
101 ms 216.203.80.72
47 2026-08-22 15:08 639230076247854903
101 ms 216.203.80.72
46 2026-08-22 14:51 639230066076077530
101 ms 216.203.80.72
45 2026-08-22 14:34 639230055738197328
99 ms 216.203.80.72
44 2026-08-22 14:17 639230045411225521
109 ms 216.203.80.72
43 2026-08-22 13:23 639230013046000470
107 ms 216.203.80.72
42 2026-08-22 13:06 639230003090037878
112 ms 216.203.80.72
41 2026-08-22 12:49 639229993008259475
103 ms 216.203.80.72
40 2026-08-22 12:33 639229982909449470
213 ms 216.203.80.72
39 2026-08-22 12:16 639229973035502212
109 ms 216.203.80.72
38 2026-08-22 12:00 639229963064296145
125 ms 216.203.80.72
37 2026-08-22 11:43 639229952996162143
143 ms 216.203.80.72
36 2026-08-22 11:26 639229943051949195
108 ms 216.203.80.72
35 2026-08-22 11:10 639229932919214934
150 ms 216.203.80.72
34 2026-08-22 10:52 639229922745889838
146 ms 216.203.80.72
33 2026-08-22 10:35 639229912587214796
105 ms 216.203.80.72
32 2026-08-22 10:18 639229902240004454
113 ms 216.203.80.72
31 2026-08-22 09:26 639229870800501662
150 ms 216.203.80.72
30 2026-08-22 09:10 639229861058384956
102 ms 216.203.80.72
29 2026-08-22 08:53 639229851158592604
136 ms 216.203.80.72
28 2026-08-22 08:37 639229841475569629
124 ms 216.203.80.72
27 2026-08-22 08:21 639229831887658471
99 ms 216.203.80.72
26 2026-08-22 08:05 639229822043670346
149 ms 216.203.80.72
25 2026-08-22 07:48 639229812327913936
232 ms 216.203.80.72
24 2026-08-22 07:32 639229802629488686
216 ms 216.203.80.72
23 2026-08-22 07:16 639229793051447309
147 ms 216.203.80.72
22 2026-08-22 07:00 639229783303531961
109 ms 216.203.80.72
21 2026-08-22 06:43 639229773458051942
200 ms 216.203.80.72
20 2026-08-22 06:27 639229763373848056
129 ms 216.203.80.72
19 2026-08-22 05:35 639229732140622809
162 ms 216.203.80.72
18 2026-08-22 05:19 639229722699695967
109 ms 216.203.80.72
17 2026-08-22 05:03 639229713097498075
221 ms 216.203.80.72
16 2026-08-22 04:47 639229703543969637
9 ms 216.203.80.72
15 2026-08-22 04:31 639229693970392873
141 ms 216.203.80.72
14 2026-08-22 04:15 639229684277329469
148 ms 216.203.80.72
13 2026-08-22 03:59 639229674501596661
229 ms 216.203.80.72
12 2026-08-22 03:43 639229665064441147
103 ms 216.203.80.72
11 2026-08-22 03:27 639229655507536872
141 ms 216.203.80.72
10 2026-08-22 03:11 639229645849603111
105 ms 216.203.80.72
9 2026-08-22 02:55 639229636090497453
136 ms 216.203.80.72
8 2026-08-22 02:38 639229625978544281
-
7 2026-08-22 01:45 639229594644662176
2135 ms 216.203.80.72
6 2026-08-22 01:30 639229585214633065
136 ms 216.203.80.72
5 2026-08-22 01:14 639229575581042175
104 ms 216.203.80.72
4 2026-08-22 00:58 639229565912268962
100 ms 216.203.80.72
3 2026-08-22 00:42 639229556237813203
110 ms 216.203.80.72
2 2026-08-22 00:25 639229546625802518
154 ms 216.203.80.72
1 2026-08-22 00:09 639229537172016621
109 ms 216.203.80.72