DNS response history for mail.format.ru

mail.format.ru 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 2026-08-26. For this date, NameServerHistory found 142 DNS check records, 142 successful responses, 0 failed responses, and 355 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 mail.format.ru.
Records on Selected Date

142

Historical checks stored for this nameserver on selected date

Average Latency

355 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 23:58

All timestamps shown in UTC

Latest Resolved IP on Selected Date

91.191.230.226

Most recently resolved hosting IP on selected date

Successful Responses

142

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 mail.format.ru

Showing DNS history for 2026-08-26 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
142 2026-08-26 23:58 639233846871926285
347 ms 91.191.230.226
141 2026-08-26 23:58 639233846871926285
347 ms 5.165.224.138
140 2026-08-26 23:04 639233814527872887
312 ms 5.165.224.138
139 2026-08-26 23:04 639233814527872887
312 ms 91.191.230.226
138 2026-08-26 22:46 639233804315489381
344 ms 91.191.230.226
137 2026-08-26 22:46 639233804315489381
344 ms 5.165.224.138
136 2026-08-26 22:29 639233793971346256
394 ms 91.191.230.226
135 2026-08-26 22:29 639233793971346256
394 ms 5.165.224.138
134 2026-08-26 22:12 639233783644630463
420 ms 91.191.230.226
133 2026-08-26 22:12 639233783644630463
420 ms 5.165.224.138
132 2026-08-26 21:55 639233773302621314
417 ms 5.165.224.138
131 2026-08-26 21:55 639233773302621314
417 ms 91.191.230.226
130 2026-08-26 21:38 639233762896723748
343 ms 91.191.230.226
129 2026-08-26 21:38 639233762896723748
343 ms 5.165.224.138
128 2026-08-26 21:20 639233752543876329
433 ms 5.165.224.138
127 2026-08-26 21:20 639233752543876329
433 ms 91.191.230.226
126 2026-08-26 21:03 639233742155931788
487 ms 91.191.230.226
125 2026-08-26 21:03 639233742155931788
487 ms 5.165.224.138
124 2026-08-26 20:46 639233731712555311
280 ms 91.191.230.226
123 2026-08-26 20:46 639233731712555311
280 ms 5.165.224.138
122 2026-08-26 20:28 639233721164051126
425 ms 5.165.224.138
121 2026-08-26 20:28 639233721164051126
425 ms 91.191.230.226
120 2026-08-26 20:10 639233710560486320
457 ms 91.191.230.226
119 2026-08-26 20:10 639233710560486320
457 ms 5.165.224.138
118 2026-08-26 19:53 639233699834667450
340 ms 91.191.230.226
117 2026-08-26 19:53 639233699834667450
340 ms 5.165.224.138
116 2026-08-26 18:58 639233667209186136
451 ms 91.191.230.226
115 2026-08-26 18:58 639233667209186136
451 ms 5.165.224.138
114 2026-08-26 18:41 639233656814316266
438 ms 5.165.224.138
113 2026-08-26 18:41 639233656814316266
438 ms 91.191.230.226
112 2026-08-26 18:23 639233646245051806
465 ms 91.191.230.226
111 2026-08-26 18:23 639233646245051806
465 ms 5.165.224.138
110 2026-08-26 18:06 639233635663779051
325 ms 91.191.230.226
109 2026-08-26 18:06 639233635663779051
325 ms 5.165.224.138
108 2026-08-26 17:48 639233624977342122
331 ms 5.165.224.138
107 2026-08-26 17:48 639233624977342122
331 ms 91.191.230.226
106 2026-08-26 17:30 639233614446136153
396 ms 91.191.230.226
105 2026-08-26 17:30 639233614446136153
396 ms 5.165.224.138
104 2026-08-26 17:12 639233603737877581
461 ms 91.191.230.226
103 2026-08-26 17:12 639233603737877581
461 ms 5.165.224.138
102 2026-08-26 16:55 639233593269224651
328 ms 5.165.224.138
101 2026-08-26 16:55 639233593269224651
328 ms 91.191.230.226
100 2026-08-26 16:37 639233582635086903
460 ms 5.165.224.138
99 2026-08-26 16:37 639233582635086903
460 ms 91.191.230.226
98 2026-08-26 16:20 639233572000374575
465 ms 5.165.224.138
97 2026-08-26 16:20 639233572000374575
465 ms 91.191.230.226
96 2026-08-26 16:02 639233561188633861
453 ms 91.191.230.226
95 2026-08-26 16:02 639233561188633861
453 ms 5.165.224.138
94 2026-08-26 15:44 639233550544357027
212 ms 5.165.224.138
93 2026-08-26 15:44 639233550544357027
212 ms 91.191.230.226
92 2026-08-26 14:49 639233517966053117
386 ms 5.165.224.138
91 2026-08-26 14:49 639233517966053117
386 ms 91.191.230.226
90 2026-08-26 14:32 639233507603253585
347 ms 91.191.230.226
89 2026-08-26 14:32 639233507603253585
347 ms 5.165.224.138
88 2026-08-26 14:15 639233497229039167
314 ms 5.165.224.138
87 2026-08-26 14:15 639233497229039167
314 ms 91.191.230.226
86 2026-08-26 13:57 639233486864546406
342 ms 5.165.224.138
85 2026-08-26 13:57 639233486864546406
342 ms 91.191.230.226
84 2026-08-26 13:40 639233476455174682
320 ms 91.191.230.226
83 2026-08-26 13:40 639233476455174682
320 ms 5.165.224.138
82 2026-08-26 13:23 639233466171592605
436 ms 91.191.230.226
81 2026-08-26 13:23 639233466171592605
436 ms 5.165.224.138
80 2026-08-26 13:06 639233455747096265
445 ms 91.191.230.226
79 2026-08-26 13:06 639233455747096265
445 ms 5.165.224.138
78 2026-08-26 12:48 639233445367152284
343 ms 91.191.230.226
77 2026-08-26 12:48 639233445367152284
343 ms 5.165.224.138
76 2026-08-26 12:31 639233434974187439
195 ms 91.191.230.226
75 2026-08-26 12:31 639233434974187439
195 ms 5.165.224.138
74 2026-08-26 12:14 639233424567558554
442 ms 91.191.230.226
73 2026-08-26 12:14 639233424567558554
442 ms 5.165.224.138
72 2026-08-26 11:56 639233414056832719
143 ms 5.165.224.138
71 2026-08-26 11:56 639233414056832719
143 ms 91.191.230.226
70 2026-08-26 11:39 639233403515141099
439 ms 91.191.230.226
69 2026-08-26 11:39 639233403515141099
439 ms 5.165.224.138
68 2026-08-26 10:44 639233370841350248
444 ms 5.165.224.138
67 2026-08-26 10:44 639233370841350248
444 ms 91.191.230.226
66 2026-08-26 10:27 639233360361507238
211 ms 91.191.230.226
65 2026-08-26 10:27 639233360361507238
211 ms 5.165.224.138
64 2026-08-26 10:09 639233350067824371
439 ms 5.165.224.138
63 2026-08-26 10:09 639233350067824371
439 ms 91.191.230.226
62 2026-08-26 09:52 639233339545274518
244 ms 5.165.224.138
61 2026-08-26 09:52 639233339545274518
244 ms 91.191.230.226
60 2026-08-26 09:35 639233329214918079
346 ms 91.191.230.226
59 2026-08-26 09:35 639233329214918079
346 ms 5.165.224.138
58 2026-08-26 09:17 639233318749762337
130 ms 91.191.230.226
57 2026-08-26 09:17 639233318749762337
130 ms 5.165.224.138
56 2026-08-26 09:00 639233308387917838
348 ms 5.165.224.138
55 2026-08-26 09:00 639233308387917838
348 ms 91.191.230.226
54 2026-08-26 08:43 639233297961740122
342 ms 91.191.230.226
53 2026-08-26 08:43 639233297961740122
342 ms 5.165.224.138
52 2026-08-26 08:25 639233287487159094
255 ms 91.191.230.226
51 2026-08-26 08:25 639233287487159094
255 ms 5.165.224.138
50 2026-08-26 08:08 639233276995531707
333 ms 5.165.224.138
49 2026-08-26 08:08 639233276995531707
333 ms 91.191.230.226
48 2026-08-26 07:50 639233266521568229
341 ms 5.165.224.138
47 2026-08-26 07:50 639233266521568229
341 ms 91.191.230.226
46 2026-08-26 07:33 639233256081047431
117 ms 91.191.230.226
45 2026-08-26 07:33 639233256081047431
117 ms 5.165.224.138
44 2026-08-26 06:39 639233223620132921
442 ms 5.165.224.138
43 2026-08-26 06:39 639233223620132921
442 ms 91.191.230.226
42 2026-08-26 06:21 639233213287814244
330 ms 91.191.230.226
41 2026-08-26 06:21 639233213287814244
330 ms 5.165.224.138
40 2026-08-26 06:04 639233202925983161
127 ms 91.191.230.226
39 2026-08-26 06:04 639233202925983161
127 ms 5.165.224.138
38 2026-08-26 05:47 639233192644780696
334 ms 5.165.224.138
37 2026-08-26 05:47 639233192644780696
334 ms 91.191.230.226
36 2026-08-26 05:30 639233182401183833
417 ms 91.191.230.226
35 2026-08-26 05:30 639233182401183833
417 ms 5.165.224.138
34 2026-08-26 05:13 639233172074181051
358 ms 5.165.224.138
33 2026-08-26 05:13 639233172074181051
358 ms 91.191.230.226
32 2026-08-26 04:55 639233161808421455
335 ms 5.165.224.138
31 2026-08-26 04:55 639233161808421455
335 ms 91.191.230.226
30 2026-08-26 04:38 639233151357344052
257 ms 5.165.224.138
29 2026-08-26 04:38 639233151357344052
257 ms 91.191.230.226
28 2026-08-26 04:21 639233141034116946
354 ms 91.191.230.226
27 2026-08-26 04:21 639233141034116946
354 ms 5.165.224.138
26 2026-08-26 04:04 639233130828334142
377 ms 91.191.230.226
25 2026-08-26 04:04 639233130828334142
377 ms 5.165.224.138
24 2026-08-26 03:47 639233120373450007
347 ms 91.191.230.226
23 2026-08-26 03:47 639233120373450007
347 ms 5.165.224.138
22 2026-08-26 03:29 639233110066216193
238 ms 91.191.230.226
21 2026-08-26 03:29 639233110066216193
238 ms 5.165.224.138
20 2026-08-26 02:36 639233078065410564
358 ms 91.191.230.226
19 2026-08-26 02:36 639233078065410564
358 ms 5.165.224.138
18 2026-08-26 02:19 639233067787457832
252 ms 5.165.224.138
17 2026-08-26 02:19 639233067787457832
252 ms 91.191.230.226
16 2026-08-26 02:02 639233057501801162
365 ms 5.165.224.138
15 2026-08-26 02:02 639233057501801162
365 ms 91.191.230.226
14 2026-08-26 01:45 639233047089431703
424 ms 91.191.230.226
13 2026-08-26 01:45 639233047089431703
424 ms 5.165.224.138
12 2026-08-26 01:27 639233036754790688
342 ms 5.165.224.138
11 2026-08-26 01:27 639233036754790688
342 ms 91.191.230.226
10 2026-08-26 01:10 639233026412602472
355 ms 5.165.224.138
9 2026-08-26 01:10 639233026412602472
355 ms 91.191.230.226
8 2026-08-26 00:53 639233016064066127
447 ms 5.165.224.138
7 2026-08-26 00:53 639233016064066127
447 ms 91.191.230.226
6 2026-08-26 00:36 639233005922655772
450 ms 91.191.230.226
5 2026-08-26 00:36 639233005922655772
450 ms 5.165.224.138
4 2026-08-26 00:19 639232995672256907
445 ms 91.191.230.226
3 2026-08-26 00:19 639232995672256907
445 ms 5.165.224.138
2 2026-08-26 00:02 639232985300872416
346 ms 91.191.230.226
1 2026-08-26 00:02 639232985300872416
346 ms 5.165.224.138