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 2026-08-18. For this date, NameServerHistory found 75 DNS check records, 75 successful responses, 0 failed responses, and 334 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

75

Historical checks stored for this nameserver on selected date

Average Latency

334 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-18 23:45

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

75

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 2026-08-18 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 2026-08-18 23:45 639226935204800669
39 ms 51.38.206.250
74 2026-08-18 23:29 639226925298919497
8 ms 51.38.206.250
73 2026-08-18 23:12 639226915487885053
84 ms 51.38.206.250
72 2026-08-18 22:55 639226905465760034
14 ms 51.38.206.250
71 2026-08-18 22:39 639226895378104692
36 ms 51.38.206.250
70 2026-08-18 21:45 639226863374232622
15 ms 51.38.206.250
69 2026-08-18 21:29 639226853698516058
6 ms 51.38.206.250
68 2026-08-18 21:13 639226843797360601
16 ms 51.38.206.250
67 2026-08-18 20:56 639226834046588155
4 ms 51.38.206.250
66 2026-08-18 20:40 639226824234488533
37 ms 51.38.206.250
65 2026-08-18 20:24 639226814549928621
13 ms 51.38.206.250
64 2026-08-18 20:08 639226804721432353
43 ms 51.38.206.250
63 2026-08-18 19:51 639226795048828184
53 ms 51.38.206.250
62 2026-08-18 19:35 639226785202482420
58 ms 51.38.206.250
61 2026-08-18 19:19 639226775309362607
75 ms 51.38.206.250
60 2026-08-18 19:02 639226765406586155
18 ms 51.38.206.250
59 2026-08-18 18:45 639226755437790519
46 ms 51.38.206.250
58 2026-08-18 17:53 639226723856194457
2032 ms 51.38.206.250
57 2026-08-18 17:36 639226714050583422
2053 ms 51.38.206.250
56 2026-08-18 17:20 639226704236499724
36 ms 51.38.206.250
55 2026-08-18 17:03 639226694184520163
39 ms 51.38.206.250
54 2026-08-18 16:47 639226684161203477
13 ms 51.38.206.250
53 2026-08-18 16:30 639226674305430109
87 ms 51.38.206.250
52 2026-08-18 16:14 639226664489607984
246 ms 51.38.206.250
51 2026-08-18 15:57 639226654533111667
2050 ms 51.38.206.250
50 2026-08-18 15:41 639226644778594725
9 ms 51.38.206.250
49 2026-08-18 15:25 639226634901553621
2095 ms 51.38.206.250
48 2026-08-18 15:08 639226624921864967
78 ms 51.38.206.250
47 2026-08-18 14:51 639226614939419403
39 ms 51.38.206.250
46 2026-08-18 13:58 639226583021074771
24 ms 51.38.206.250
45 2026-08-18 13:42 639226573279933585
14 ms 51.38.206.250
44 2026-08-18 13:25 639226563494036301
43 ms 51.38.206.250
43 2026-08-18 13:09 639226553708216256
44 ms 51.38.206.250
42 2026-08-18 12:53 639226544003734815
33 ms 51.38.206.250
41 2026-08-18 12:36 639226534105733155
3 ms 51.38.206.250
40 2026-08-18 12:20 639226524298118898
79 ms 51.38.206.250
39 2026-08-18 12:04 639226514525195335
38 ms 51.38.206.250
38 2026-08-18 11:48 639226504703635320
17 ms 51.38.206.250
37 2026-08-18 11:31 639226494737271720
81 ms 51.38.206.250
36 2026-08-18 11:15 639226485005027236
19 ms 51.38.206.250
35 2026-08-18 10:58 639226475133236105
18 ms 51.38.206.250
34 2026-08-18 10:05 639226442975077052
60 ms 51.38.206.250
33 2026-08-18 09:49 639226433317932039
9 ms 51.38.206.250
32 2026-08-18 09:32 639226423688431096
28 ms 51.38.206.250
31 2026-08-18 09:16 639226413998250045
12 ms 51.38.206.250
30 2026-08-18 09:00 639226404284554875
52 ms 51.38.206.250
29 2026-08-18 08:44 639226394637043309
2057 ms 51.38.206.250
28 2026-08-18 08:28 639226385052447582
28 ms 51.38.206.250
27 2026-08-18 08:12 639226375506189603
2021 ms 51.38.206.250
26 2026-08-18 07:56 639226365690646426
12 ms 51.38.206.250
25 2026-08-18 07:39 639226355771007701
39 ms 51.38.206.250
24 2026-08-18 07:23 639226345946269369
52 ms 51.38.206.250
23 2026-08-18 07:07 639226336241601848
110 ms 51.38.206.250
22 2026-08-18 06:15 639226304950675290
14 ms 51.38.206.250
21 2026-08-18 05:59 639226295324754616
23 ms 51.38.206.250
20 2026-08-18 05:43 639226285824640601
42 ms 51.38.206.250
19 2026-08-18 05:27 639226276321223917
2055 ms 51.38.206.250
18 2026-08-18 05:11 639226266800200046
2175 ms 51.38.206.250
17 2026-08-18 04:55 639226256958066164
29 ms 51.38.206.250
16 2026-08-18 04:39 639226247432364597
12 ms 51.38.206.250
15 2026-08-18 04:22 639226237703388552
3 ms 51.38.206.250
14 2026-08-18 04:06 639226227937569589
7 ms 51.38.206.250
13 2026-08-18 03:50 639226218052465471
35 ms 51.38.206.250
12 2026-08-18 03:34 639226208429623997
4024 ms 51.38.206.250
11 2026-08-18 03:18 639226198800675295
60 ms 51.38.206.250
10 2026-08-18 02:26 639226167722042574
12 ms 51.38.206.250
9 2026-08-18 02:10 639226158277924383
13 ms 51.38.206.250
8 2026-08-18 01:54 639226148757810592
33 ms 51.38.206.250
7 2026-08-18 01:39 639226139348611045
3 ms 51.38.206.250
6 2026-08-18 01:23 639226129823462907
89 ms 51.38.206.250
5 2026-08-18 01:07 639226120218260005
7 ms 51.38.206.250
4 2026-08-18 00:51 639226110875503904
2022 ms 51.38.206.250
3 2026-08-18 00:35 639226101376311912
45 ms 51.38.206.250
2 2026-08-18 00:20 639226091924943492
19 ms 51.38.206.250
1 2026-08-18 00:03 639226082133158124
73 ms 51.38.206.250