DNS response history for ns4.cloudflare.com

ns4.cloudflare.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 2026-08-19. For this date, NameServerHistory found 150 DNS check records, 150 successful responses, 0 failed responses, and 258 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 ns4.cloudflare.com.
Records on Selected Date

150

Historical checks stored for this nameserver on selected date

Average Latency

258 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-19 23:57

All timestamps shown in UTC

Latest Resolved IP on Selected Date

162.159.8.55

Most recently resolved hosting IP on selected date

Successful Responses

150

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 ns4.cloudflare.com

Showing DNS history for 2026-08-19 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
150 2026-08-19 23:57 639227805445376839
38 ms 162.159.8.55
149 2026-08-19 23:57 639227805445376839
38 ms 162.159.1.33
148 2026-08-19 23:41 639227795899225951
9 ms 162.159.8.55
147 2026-08-19 23:41 639227795899225951
9 ms 162.159.1.33
146 2026-08-19 23:25 639227786351762008
4 ms 162.159.1.33
145 2026-08-19 23:25 639227786351762008
4 ms 162.159.8.55
144 2026-08-19 23:08 639227776640591733
2016 ms 162.159.1.33
143 2026-08-19 23:08 639227776640591733
2016 ms 162.159.8.55
142 2026-08-19 22:53 639227767128841282
44 ms 162.159.1.33
141 2026-08-19 22:53 639227767128841282
44 ms 162.159.8.55
140 2026-08-19 22:37 639227757477304711
10 ms 162.159.1.33
139 2026-08-19 22:37 639227757477304711
10 ms 162.159.8.55
138 2026-08-19 22:20 639227747572098014
26 ms 162.159.8.55
137 2026-08-19 22:20 639227747572098014
26 ms 162.159.1.33
136 2026-08-19 22:03 639227737588613113
4 ms 162.159.1.33
135 2026-08-19 22:03 639227737588613113
4 ms 162.159.8.55
134 2026-08-19 21:11 639227706134603955
10 ms 162.159.1.33
133 2026-08-19 21:11 639227706134603955
10 ms 162.159.8.55
132 2026-08-19 20:55 639227696589027396
5 ms 162.159.1.33
131 2026-08-19 20:55 639227696589027396
5 ms 162.159.8.55
130 2026-08-19 20:39 639227687097707639
22 ms 162.159.1.33
129 2026-08-19 20:39 639227687097707639
22 ms 162.159.8.55
128 2026-08-19 20:23 639227677474464487
5 ms 162.159.1.33
127 2026-08-19 20:23 639227677474464487
5 ms 162.159.8.55
126 2026-08-19 20:07 639227667767441118
11 ms 162.159.1.33
125 2026-08-19 20:07 639227667767441118
11 ms 162.159.8.55
124 2026-08-19 19:51 639227657984833832
2012 ms 162.159.8.55
123 2026-08-19 19:51 639227657984833832
2012 ms 162.159.1.33
122 2026-08-19 19:34 639227648079992640
4 ms 162.159.1.33
121 2026-08-19 19:34 639227648079992640
4 ms 162.159.8.55
120 2026-08-19 19:18 639227638125048441
47 ms 162.159.1.33
119 2026-08-19 19:18 639227638125048441
47 ms 162.159.8.55
118 2026-08-19 19:01 639227628211392142
25 ms 162.159.8.55
117 2026-08-19 19:01 639227628211392142
25 ms 162.159.1.33
116 2026-08-19 18:45 639227618261696275
37 ms 162.159.1.33
115 2026-08-19 18:45 639227618261696275
37 ms 162.159.8.55
114 2026-08-19 18:28 639227608366233645
7 ms 162.159.8.55
113 2026-08-19 18:28 639227608366233645
7 ms 162.159.1.33
112 2026-08-19 18:11 639227598301787588
2029 ms 162.159.1.33
111 2026-08-19 18:11 639227598301787588
2029 ms 162.159.8.55
110 2026-08-19 17:18 639227566241010716
64 ms 162.159.1.33
109 2026-08-19 17:18 639227566241010716
64 ms 162.159.8.55
108 2026-08-19 17:02 639227556454538959
4 ms 162.159.1.33
107 2026-08-19 17:02 639227556454538959
4 ms 162.159.8.55
106 2026-08-19 16:45 639227546640305542
39 ms 162.159.1.33
105 2026-08-19 16:45 639227546640305542
39 ms 162.159.8.55
104 2026-08-19 16:29 639227536965466472
10 ms 162.159.1.33
103 2026-08-19 16:29 639227536965466472
10 ms 162.159.8.55
102 2026-08-19 16:13 639227527048658280
27 ms 162.159.1.33
101 2026-08-19 16:13 639227527048658280
27 ms 162.159.8.55
100 2026-08-19 15:56 639227517386634438
4 ms 162.159.1.33
99 2026-08-19 15:56 639227517386634438
4 ms 162.159.8.55
98 2026-08-19 15:40 639227507459551637
46 ms 162.159.8.55
97 2026-08-19 15:40 639227507459551637
46 ms 162.159.1.33
96 2026-08-19 15:23 639227497515595277
16 ms 162.159.1.33
95 2026-08-19 15:23 639227497515595277
16 ms 162.159.8.55
94 2026-08-19 15:07 639227487441798036
14 ms 162.159.1.33
93 2026-08-19 15:07 639227487441798036
14 ms 162.159.8.55
92 2026-08-19 14:50 639227477445551863
4 ms 162.159.1.33
91 2026-08-19 14:50 639227477445551863
4 ms 162.159.8.55
90 2026-08-19 14:33 639227467297067891
2041 ms 162.159.1.33
89 2026-08-19 14:33 639227467297067891
2041 ms 162.159.8.55
88 2026-08-19 14:16 639227457057795635
14 ms 162.159.1.33
87 2026-08-19 14:16 639227457057795635
14 ms 162.159.8.55
86 2026-08-19 13:23 639227425244777397
2008 ms 162.159.1.33
85 2026-08-19 13:23 639227425244777397
2008 ms 162.159.8.55
84 2026-08-19 13:06 639227415422116485
38 ms 162.159.1.33
83 2026-08-19 13:06 639227415422116485
38 ms 162.159.8.55
82 2026-08-19 12:50 639227405307256053
2022 ms 162.159.8.55
81 2026-08-19 12:50 639227405307256053
2022 ms 162.159.1.33
80 2026-08-19 12:33 639227395396602630
57 ms 162.159.1.33
79 2026-08-19 12:33 639227395396602630
57 ms 162.159.8.55
78 2026-08-19 12:17 639227385510363611
18 ms 162.159.8.55
77 2026-08-19 12:17 639227385510363611
18 ms 162.159.1.33
76 2026-08-19 12:00 639227375508324850
12 ms 162.159.1.33
75 2026-08-19 12:00 639227375508324850
12 ms 162.159.8.55
74 2026-08-19 11:43 639227365326611906
36 ms 162.159.1.33
73 2026-08-19 11:43 639227365326611906
36 ms 162.159.8.55
72 2026-08-19 11:26 639227355360014208
29 ms 162.159.1.33
71 2026-08-19 11:26 639227355360014208
29 ms 162.159.8.55
70 2026-08-19 11:09 639227345036782165
44 ms 162.159.8.55
69 2026-08-19 11:09 639227345036782165
44 ms 162.159.1.33
68 2026-08-19 10:52 639227334992964533
28 ms 162.159.1.33
67 2026-08-19 10:52 639227334992964533
28 ms 162.159.8.55
66 2026-08-19 10:36 639227324986605572
4 ms 162.159.1.33
65 2026-08-19 10:36 639227324986605572
4 ms 162.159.8.55
64 2026-08-19 10:19 639227314928414539
3 ms 162.159.1.33
63 2026-08-19 10:19 639227314928414539
3 ms 162.159.8.55
62 2026-08-19 09:26 639227283029182134
29 ms 162.159.1.33
61 2026-08-19 09:26 639227283029182134
29 ms 162.159.8.55
60 2026-08-19 09:10 639227273294779350
5 ms 162.159.1.33
59 2026-08-19 09:10 639227273294779350
5 ms 162.159.8.55
58 2026-08-19 08:53 639227263525231313
7 ms 162.159.1.33
57 2026-08-19 08:53 639227263525231313
7 ms 162.159.8.55
56 2026-08-19 08:37 639227253578313363
19 ms 162.159.8.55
55 2026-08-19 08:37 639227253578313363
19 ms 162.159.1.33
54 2026-08-19 08:20 639227243649973322
4 ms 162.159.1.33
53 2026-08-19 08:20 639227243649973322
4 ms 162.159.8.55
52 2026-08-19 08:03 639227233581059317
26 ms 162.159.1.33
51 2026-08-19 08:03 639227233581059317
26 ms 162.159.8.55
50 2026-08-19 07:47 639227223667352067
18 ms 162.159.1.33
49 2026-08-19 07:47 639227223667352067
18 ms 162.159.8.55
48 2026-08-19 07:30 639227213714837066
3 ms 162.159.1.33
47 2026-08-19 07:30 639227213714837066
3 ms 162.159.8.55
46 2026-08-19 07:14 639227203701208496
2014 ms 162.159.8.55
45 2026-08-19 07:14 639227203701208496
2014 ms 162.159.1.33
44 2026-08-19 06:57 639227193643202179
19 ms 162.159.8.55
43 2026-08-19 06:57 639227193643202179
19 ms 162.159.1.33
42 2026-08-19 06:40 639227183584431597
8 ms 162.159.1.33
41 2026-08-19 06:40 639227183584431597
8 ms 162.159.8.55
40 2026-08-19 06:23 639227173347403088
4 ms 162.159.1.33
39 2026-08-19 06:23 639227173347403088
4 ms 162.159.8.55
38 2026-08-19 05:30 639227141523007601
4 ms 162.159.1.33
37 2026-08-19 05:30 639227141523007601
4 ms 162.159.8.55
36 2026-08-19 05:14 639227131785931574
36 ms 162.159.1.33
35 2026-08-19 05:14 639227131785931574
36 ms 162.159.8.55
34 2026-08-19 04:58 639227122176475389
23 ms 162.159.1.33
33 2026-08-19 04:58 639227122176475389
23 ms 162.159.8.55
32 2026-08-19 04:42 639227112668934596
31 ms 162.159.1.33
31 2026-08-19 04:42 639227112668934596
31 ms 162.159.8.55
30 2026-08-19 04:25 639227102773292788
4 ms 162.159.1.33
29 2026-08-19 04:25 639227102773292788
4 ms 162.159.8.55
28 2026-08-19 04:09 639227093141136930
16 ms 162.159.1.33
27 2026-08-19 04:09 639227093141136930
16 ms 162.159.8.55
26 2026-08-19 03:53 639227083449420147
3 ms 162.159.1.33
25 2026-08-19 03:53 639227083449420147
3 ms 162.159.8.55
24 2026-08-19 03:37 639227073771748493
4 ms 162.159.1.33
23 2026-08-19 03:37 639227073771748493
4 ms 162.159.8.55
22 2026-08-19 03:21 639227063977347614
34 ms 162.159.1.33
21 2026-08-19 03:21 639227063977347614
34 ms 162.159.8.55
20 2026-08-19 03:05 639227054253519024
4 ms 162.159.1.33
19 2026-08-19 03:05 639227054253519024
4 ms 162.159.8.55
18 2026-08-19 02:48 639227044381963886
3 ms 162.159.1.33
17 2026-08-19 02:48 639227044381963886
3 ms 162.159.8.55
16 2026-08-19 02:31 639227034441085514
5 ms 162.159.1.33
15 2026-08-19 02:31 639227034441085514
5 ms 162.159.8.55
14 2026-08-19 01:39 639227003126489968
2021 ms 162.159.1.33
13 2026-08-19 01:39 639227003126489968
2021 ms 162.159.8.55
12 2026-08-19 01:23 639226993456311614
21 ms 162.159.8.55
11 2026-08-19 01:23 639226993456311614
21 ms 162.159.1.33
10 2026-08-19 01:07 639226983847312345
5 ms 162.159.1.33
9 2026-08-19 01:07 639226983847312345
5 ms 162.159.8.55
8 2026-08-19 00:51 639226974357874853
7 ms 162.159.8.55
7 2026-08-19 00:51 639226974357874853
7 ms 162.159.1.33
6 2026-08-19 00:35 639226964670484721
17 ms 162.159.1.33
5 2026-08-19 00:35 639226964670484721
17 ms 162.159.8.55
4 2026-08-19 00:19 639226954857899696
2028 ms 162.159.8.55
3 2026-08-19 00:19 639226954857899696
2028 ms 162.159.1.33
2 2026-08-19 00:03 639226945091603488
4 ms 162.159.1.33
1 2026-08-19 00:03 639226945091603488
4 ms 162.159.8.55