DNS response history for ns1.mastertools.net

ns1.mastertools.net 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 2026-08-23. For this date, NameServerHistory found 75 DNS check records, 74 successful responses, 1 failed responses, and 202 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.mastertools.net.
Records on Selected Date

75

Historical checks stored for this nameserver on selected date

Average Latency

202 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-23 23:46

All timestamps shown in UTC

Latest Resolved IP on Selected Date

51.38.126.241

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 ns1.mastertools.net

Showing DNS history for 2026-08-23 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 2026-08-23 23:46 639231254406598736
41 ms 51.38.126.241
74 2026-08-23 23:30 639231244697865594
28 ms 51.38.126.241
73 2026-08-23 23:13 639231234893504693
70 ms 51.38.126.241
72 2026-08-23 22:57 639231225024549139
106 ms 51.38.126.241
71 2026-08-23 22:40 639231214931957622
18 ms 51.38.126.241
70 2026-08-23 22:24 639231204962010549
30 ms 51.38.126.241
69 2026-08-23 22:07 639231195170138463
83 ms 51.38.126.241
68 2026-08-23 21:51 639231185235020577
52 ms 51.38.126.241
67 2026-08-23 21:34 639231175558690075
41 ms 51.38.126.241
66 2026-08-23 21:18 639231165610444012
66 ms 51.38.126.241
65 2026-08-23 20:25 639231133806425363
48 ms 51.38.126.241
64 2026-08-23 20:09 639231124203758023
31 ms 51.38.126.241
63 2026-08-23 19:53 639231114428262706
69 ms 51.38.126.241
62 2026-08-23 19:36 639231104662480065
43 ms 51.38.126.241
61 2026-08-23 19:20 639231094840372018
45 ms 51.38.126.241
60 2026-08-23 19:04 639231085024583224
62 ms 51.38.126.241
59 2026-08-23 18:47 639231075257417427
2031 ms 51.38.126.241
58 2026-08-23 18:31 639231065516009503
11 ms 51.38.126.241
57 2026-08-23 18:15 639231055805348837
42 ms 51.38.126.241
56 2026-08-23 17:59 639231045980373765
40 ms 51.38.126.241
55 2026-08-23 17:42 639231035984577527
20 ms 51.38.126.241
54 2026-08-23 17:25 639231025928115303
-
53 2026-08-23 16:32 639230994250157583
4028 ms 51.38.126.241
52 2026-08-23 16:16 639230984476411369
7 ms 51.38.126.241
51 2026-08-23 16:00 639230974838373450
31 ms 51.38.126.241
50 2026-08-23 15:44 639230965244277645
39 ms 51.38.126.241
49 2026-08-23 15:28 639230955522101820
44 ms 51.38.126.241
48 2026-08-23 15:12 639230945754521603
57 ms 51.38.126.241
47 2026-08-23 14:55 639230935852040504
72 ms 51.38.126.241
46 2026-08-23 14:39 639230926222061048
36 ms 51.38.126.241
45 2026-08-23 14:23 639230916449726907
2068 ms 51.38.126.241
44 2026-08-23 14:06 639230906595053086
15 ms 51.38.126.241
43 2026-08-23 13:50 639230896680429441
2034 ms 51.38.126.241
42 2026-08-23 13:33 639230886630210965
18 ms 51.38.126.241
41 2026-08-23 12:41 639230855430405719
14 ms 51.38.126.241
40 2026-08-23 12:25 639230845707499136
41 ms 51.38.126.241
39 2026-08-23 12:09 639230836186805419
52 ms 51.38.126.241
38 2026-08-23 11:53 639230826493828316
40 ms 51.38.126.241
37 2026-08-23 11:37 639230816817882996
44 ms 51.38.126.241
36 2026-08-23 11:20 639230806933854189
30 ms 51.38.126.241
35 2026-08-23 11:04 639230797120243854
36 ms 51.38.126.241
34 2026-08-23 10:47 639230787310272840
18 ms 51.38.126.241
33 2026-08-23 10:31 639230777600173142
46 ms 51.38.126.241
32 2026-08-23 10:15 639230767665024593
37 ms 51.38.126.241
31 2026-08-23 09:58 639230757720962293
13 ms 51.38.126.241
30 2026-08-23 09:42 639230747722189784
22 ms 51.38.126.241
29 2026-08-23 08:49 639230716313923480
45 ms 51.38.126.241
28 2026-08-23 08:33 639230706813835990
13 ms 51.38.126.241
27 2026-08-23 08:17 639230696871062203
2040 ms 51.38.126.241
26 2026-08-23 08:01 639230687142781616
36 ms 51.38.126.241
25 2026-08-23 07:44 639230677432142227
30 ms 51.38.126.241
24 2026-08-23 07:28 639230667686258061
128 ms 51.38.126.241
23 2026-08-23 07:12 639230658039243685
30 ms 51.38.126.241
22 2026-08-23 06:56 639230648468473803
56 ms 51.38.126.241
21 2026-08-23 06:40 639230638829658294
27 ms 51.38.126.241
20 2026-08-23 06:24 639230629247017617
9 ms 51.38.126.241
19 2026-08-23 06:08 639230619625318239
35 ms 51.38.126.241
18 2026-08-23 05:51 639230609697630264
27 ms 51.38.126.241
17 2026-08-23 05:00 639230578570131864
8 ms 51.38.126.241
16 2026-08-23 04:44 639230568958963168
33 ms 51.38.126.241
15 2026-08-23 04:27 639230559287611211
46 ms 51.38.126.241
14 2026-08-23 04:11 639230549524312030
29 ms 51.38.126.241
13 2026-08-23 03:55 639230539739801669
16 ms 51.38.126.241
12 2026-08-23 03:39 639230530084069375
70 ms 51.38.126.241
11 2026-08-23 03:23 639230520362691441
40 ms 51.38.126.241
10 2026-08-23 03:06 639230510677194518
16 ms 51.38.126.241
9 2026-08-23 02:51 639230501156002646
29 ms 51.38.126.241
8 2026-08-23 02:34 639230491502198541
13 ms 51.38.126.241
7 2026-08-23 02:18 639230481860318494
25 ms 51.38.126.241
6 2026-08-23 02:02 639230471893008575
77 ms 51.38.126.241
5 2026-08-23 01:09 639230440030877421
42 ms 51.38.126.241
4 2026-08-23 00:53 639230430479725508
21 ms 51.38.126.241
3 2026-08-23 00:37 639230420875160219
78 ms 51.38.126.241
2 2026-08-23 00:21 639230411240692575
43 ms 51.38.126.241
1 2026-08-23 00:05 639230401550806607
40 ms 51.38.126.241