DNS response history for b.mailsafi.com

b.mailsafi.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 2026-08-21. For this date, NameServerHistory found 73 DNS check records, 71 successful responses, 2 failed responses, and 262 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 b.mailsafi.com.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

262 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:52

All timestamps shown in UTC

Latest Resolved IP on Selected Date

188.40.80.138

Most recently resolved hosting IP on selected date

Successful Responses

71

Checks that returned a measurable response

Failed Responses

2

Checks with no response or no returned latency

Failure Rate

3%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for b.mailsafi.com

Showing DNS history for 2026-08-21 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
73 2026-08-21 23:52 639229527598660841
25 ms 188.40.80.138
72 2026-08-21 23:36 639229517954323214
51 ms 188.40.80.138
71 2026-08-21 23:20 639229508269999021
34 ms 188.40.80.138
70 2026-08-21 23:04 639229498559060171
2209 ms 188.40.80.138
69 2026-08-21 22:47 639229488519347586
39 ms 188.40.80.138
68 2026-08-21 21:54 639229456606578934
40 ms 188.40.80.138
67 2026-08-21 21:38 639229446985772499
60 ms 188.40.80.138
66 2026-08-21 21:22 639229437367313098
89 ms 188.40.80.138
65 2026-08-21 21:06 639229427923950391
70 ms 188.40.80.138
64 2026-08-21 20:50 639229418168588854
269 ms 188.40.80.138
63 2026-08-21 20:33 639229408345678334
44 ms 188.40.80.138
62 2026-08-21 20:17 639229398616354648
89 ms 188.40.80.138
61 2026-08-21 20:01 639229388634592323
-
60 2026-08-21 19:44 639229378792837692
31 ms 188.40.80.138
59 2026-08-21 19:28 639229369154682311
59 ms 188.40.80.138
58 2026-08-21 19:11 639229359248017926
28 ms 188.40.80.138
57 2026-08-21 18:55 639229349124294642
2237 ms 188.40.80.138
56 2026-08-21 18:03 639229317791715692
24 ms 188.40.80.138
55 2026-08-21 17:46 639229308115194575
27 ms 188.40.80.138
54 2026-08-21 17:30 639229298320320558
2186 ms 188.40.80.138
53 2026-08-21 17:14 639229288674863221
137 ms 188.40.80.138
52 2026-08-21 16:58 639229278983677079
32 ms 188.40.80.138
51 2026-08-21 16:42 639229269405517175
51 ms 188.40.80.138
50 2026-08-21 16:26 639229259594798244
55 ms 188.40.80.138
49 2026-08-21 16:09 639229249736681188
72 ms 188.40.80.138
48 2026-08-21 15:52 639229239699417787
41 ms 188.40.80.138
47 2026-08-21 15:36 639229229621964033
209 ms 188.40.80.138
46 2026-08-21 15:19 639229219567270965
297 ms 188.40.80.138
45 2026-08-21 15:02 639229209406666856
184 ms 188.40.80.138
44 2026-08-21 14:09 639229177815876178
311 ms 188.40.80.138
43 2026-08-21 13:53 639229168243572685
55 ms 188.40.80.138
42 2026-08-21 13:37 639229158599856475
58 ms 188.40.80.138
41 2026-08-21 13:21 639229148998940902
30 ms 188.40.80.138
40 2026-08-21 13:05 639229139276923594
71 ms 188.40.80.138
39 2026-08-21 12:49 639229129709912394
92 ms 188.40.80.138
38 2026-08-21 12:33 639229119801488500
2058 ms 188.40.80.138
37 2026-08-21 12:16 639229110135262458
67 ms 188.40.80.138
36 2026-08-21 12:00 639229100336051392
249 ms 188.40.80.138
35 2026-08-21 11:44 639229090641415626
29 ms 188.40.80.138
34 2026-08-21 11:27 639229080702683947
52 ms 188.40.80.138
33 2026-08-21 11:11 639229070601456699
20 ms 188.40.80.138
32 2026-08-21 10:18 639229038947447232
14 ms 188.40.80.138
31 2026-08-21 10:02 639229029268708773
121 ms 188.40.80.138
30 2026-08-21 09:45 639229019647910603
79 ms 188.40.80.138
29 2026-08-21 09:29 639229009983843738
159 ms 188.40.80.138
28 2026-08-21 09:13 639229000203331882
26 ms 188.40.80.138
27 2026-08-21 08:57 639228990302335999
59 ms 188.40.80.138
26 2026-08-21 08:40 639228980567740722
198 ms 188.40.80.138
25 2026-08-21 08:24 639228970762445174
2035 ms 188.40.80.138
24 2026-08-21 08:08 639228961065054445
29 ms 188.40.80.138
23 2026-08-21 07:52 639228951224649885
277 ms 188.40.80.138
22 2026-08-21 07:35 639228941303864592
67 ms 188.40.80.138
21 2026-08-21 07:18 639228931191328583
28 ms 188.40.80.138
20 2026-08-21 06:25 639228899518173317
135 ms 188.40.80.138
19 2026-08-21 06:09 639228889785027669
53 ms 188.40.80.138
18 2026-08-21 05:53 639228880106330161
214 ms 188.40.80.138
17 2026-08-21 05:37 639228870316184091
63 ms 188.40.80.138
16 2026-08-21 05:21 639228860695366512
181 ms 188.40.80.138
15 2026-08-21 05:05 639228851027209500
-
14 2026-08-21 04:49 639228841479265462
81 ms 188.40.80.138
13 2026-08-21 04:32 639228831752962260
29 ms 188.40.80.138
12 2026-08-21 04:16 639228821953295483
72 ms 188.40.80.138
11 2026-08-21 04:00 639228812227429953
301 ms 188.40.80.138
10 2026-08-21 03:44 639228802476107538
45 ms 188.40.80.138
9 2026-08-21 03:27 639228792525492032
20 ms 188.40.80.138
8 2026-08-21 02:35 639228761131421385
26 ms 188.40.80.138
7 2026-08-21 02:19 639228751571206692
59 ms 188.40.80.138
6 2026-08-21 02:02 639228741705571019
87 ms 188.40.80.138
5 2026-08-21 01:46 639228731642208228
62 ms 188.40.80.138
4 2026-08-21 00:53 639228700387002072
67 ms 188.40.80.138
3 2026-08-21 00:37 639228690742014433
2204 ms 188.40.80.138
2 2026-08-21 00:21 639228680877937122
27 ms 188.40.80.138
1 2026-08-21 00:04 639228670775860800
36 ms 188.40.80.138