DNS response history for unders.core.bg

unders.core.bg 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 2026-08-17. For this date, NameServerHistory found 72 DNS check records, 72 successful responses, 0 failed responses, and 239 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 unders.core.bg.
Records on Selected Date

72

Historical checks stored for this nameserver on selected date

Average Latency

239 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-17 23:47

All timestamps shown in UTC

Latest Resolved IP on Selected Date

51.38.206.250

Most recently resolved hosting IP on selected date

Successful Responses

72

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 unders.core.bg

Showing DNS history for 2026-08-17 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
72 2026-08-17 23:47 639226072268080268
17 ms 51.38.206.250
71 2026-08-17 23:31 639226062577647657
2094 ms 51.38.206.250
70 2026-08-17 22:38 639226031060857136
109 ms 51.38.206.250
69 2026-08-17 22:22 639226021535117364
12 ms 51.38.206.250
68 2026-08-17 22:06 639226011884237078
73 ms 51.38.206.250
67 2026-08-17 21:50 639226002309299142
99 ms 51.38.206.250
66 2026-08-17 21:34 639225992791784448
28 ms 51.38.206.250
65 2026-08-17 21:18 639225983045271390
21 ms 51.38.206.250
64 2026-08-17 21:02 639225973246293513
30 ms 51.38.206.250
63 2026-08-17 20:46 639225963620186236
56 ms 51.38.206.250
62 2026-08-17 20:29 639225953899183916
50 ms 51.38.206.250
61 2026-08-17 20:14 639225944391528206
17 ms 51.38.206.250
60 2026-08-17 19:57 639225934593254169
44 ms 51.38.206.250
59 2026-08-17 19:41 639225924669984512
37 ms 51.38.206.250
58 2026-08-17 18:48 639225893048561320
41 ms 51.38.206.250
57 2026-08-17 18:32 639225883481298424
22 ms 51.38.206.250
56 2026-08-17 18:16 639225873845394034
15 ms 51.38.206.250
55 2026-08-17 18:00 639225864216078662
42 ms 51.38.206.250
54 2026-08-17 17:44 639225854541857773
2018 ms 51.38.206.250
53 2026-08-17 17:28 639225844733604072
44 ms 51.38.206.250
52 2026-08-17 17:12 639225835085229232
13 ms 51.38.206.250
51 2026-08-17 16:55 639225825349373981
20 ms 51.38.206.250
50 2026-08-17 16:39 639225815690604161
67 ms 51.38.206.250
49 2026-08-17 16:23 639225805952472306
13 ms 51.38.206.250
48 2026-08-17 16:07 639225796264729638
51 ms 51.38.206.250
47 2026-08-17 15:50 639225786326499329
93 ms 51.38.206.250
46 2026-08-17 14:58 639225754798130711
144 ms 51.38.206.250
45 2026-08-17 14:42 639225745123193922
40 ms 51.38.206.250
44 2026-08-17 14:26 639225735540597271
30 ms 51.38.206.250
43 2026-08-17 14:09 639225725894857396
9 ms 51.38.206.250
42 2026-08-17 13:53 639225716249606913
2025 ms 51.38.206.250
41 2026-08-17 13:37 639225706638238179
26 ms 51.38.206.250
40 2026-08-17 13:21 639225696949691423
86 ms 51.38.206.250
39 2026-08-17 13:05 639225687286186336
8 ms 51.38.206.250
38 2026-08-17 12:49 639225677679573133
31 ms 51.38.206.250
37 2026-08-17 12:33 639225667957861024
78 ms 51.38.206.250
36 2026-08-17 12:17 639225658298791618
44 ms 51.38.206.250
35 2026-08-17 12:01 639225648583652785
26 ms 51.38.206.250
34 2026-08-17 11:08 639225617000524308
11 ms 51.38.206.250
33 2026-08-17 10:52 639225607668541600
64 ms 51.38.206.250
32 2026-08-17 10:37 639225598117279238
118 ms 51.38.206.250
31 2026-08-17 10:21 639225588751002710
2073 ms 51.38.206.250
30 2026-08-17 10:05 639225579295831051
17 ms 51.38.206.250
29 2026-08-17 09:49 639225569761469940
32 ms 51.38.206.250
28 2026-08-17 09:33 639225560161422333
15 ms 51.38.206.250
27 2026-08-17 09:18 639225550739955565
35 ms 51.38.206.250
26 2026-08-17 09:02 639225541125222426
17 ms 51.38.206.250
25 2026-08-17 08:46 639225531526675983
21 ms 51.38.206.250
24 2026-08-17 08:30 639225521915528222
84 ms 51.38.206.250
23 2026-08-17 08:13 639225512148151789
30 ms 51.38.206.250
22 2026-08-17 07:21 639225480786142412
49 ms 51.38.206.250
21 2026-08-17 07:05 639225471394348551
30 ms 51.38.206.250
20 2026-08-17 06:50 639225462031685068
2109 ms 51.38.206.250
19 2026-08-17 06:34 639225452639458328
2072 ms 51.38.206.250
18 2026-08-17 06:19 639225443300966543
18 ms 51.38.206.250
17 2026-08-17 06:03 639225433880499379
2239 ms 51.38.206.250
16 2026-08-17 05:47 639225424395198277
15 ms 51.38.206.250
15 2026-08-17 05:31 639225414744137487
15 ms 51.38.206.250
14 2026-08-17 05:15 639225405186783164
3 ms 51.38.206.250
13 2026-08-17 04:59 639225395563669822
15 ms 51.38.206.250
12 2026-08-17 04:43 639225386076645158
46 ms 51.38.206.250
11 2026-08-17 04:27 639225376620669704
2 ms 51.38.206.250
10 2026-08-17 03:36 639225345580892706
39 ms 51.38.206.250
9 2026-08-17 03:20 639225336207383710
3 ms 51.38.206.250
8 2026-08-17 03:04 639225326726565001
63 ms 51.38.206.250
7 2026-08-17 02:48 639225317249271010
84 ms 51.38.206.250
6 2026-08-17 01:57 639225286280886044
50 ms 51.38.206.250
5 2026-08-17 01:41 639225276872567548
8 ms 51.38.206.250
4 2026-08-17 01:25 639225267353865348
19 ms 51.38.206.250
3 2026-08-17 01:10 639225258033914248
24 ms 51.38.206.250
2 2026-08-17 00:17 639225226652221583
20 ms 51.38.206.250
1 2026-08-17 00:02 639225217156387684
61 ms 51.38.206.250