DNS response history for cs21.rcnoc.com

cs21.rcnoc.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 2026-08-26. For this date, NameServerHistory found 52 DNS check records, 52 successful responses, 0 failed responses, and 97 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 cs21.rcnoc.com.
Records on Selected Date

52

Historical checks stored for this nameserver on selected date

Average Latency

97 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 17:20

All timestamps shown in UTC

Latest Resolved IP on Selected Date

212.95.49.139

Most recently resolved hosting IP on selected date

Successful Responses

52

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 cs21.rcnoc.com

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
52 2026-08-26 17:20 639233614446136153
30 ms 212.95.49.139
51 2026-08-26 17:02 639233603737877581
7 ms 212.95.49.139
50 2026-08-26 16:45 639233593269224651
6 ms 212.95.49.139
49 2026-08-26 16:27 639233582635086903
4 ms 212.95.49.139
48 2026-08-26 16:09 639233572000374575
2060 ms 212.95.49.139
47 2026-08-26 15:52 639233561188633861
53 ms 212.95.49.139
46 2026-08-26 15:34 639233550544357027
5 ms 212.95.49.139
45 2026-08-26 14:39 639233517966053117
18 ms 212.95.49.139
44 2026-08-26 14:22 639233507603253585
38 ms 212.95.49.139
43 2026-08-26 14:05 639233497229039167
6 ms 212.95.49.139
42 2026-08-26 13:48 639233486864546406
7 ms 212.95.49.139
41 2026-08-26 13:30 639233476455174682
11 ms 212.95.49.139
40 2026-08-26 13:13 639233466171592605
7 ms 212.95.49.139
39 2026-08-26 12:56 639233455747096265
61 ms 212.95.49.139
38 2026-08-26 12:38 639233445367152284
14 ms 212.95.49.139
37 2026-08-26 12:21 639233434974187439
29 ms 212.95.49.139
36 2026-08-26 12:04 639233424567558554
17 ms 212.95.49.139
35 2026-08-26 11:46 639233414056832719
58 ms 212.95.49.139
34 2026-08-26 11:29 639233403515141099
33 ms 212.95.49.139
33 2026-08-26 10:34 639233370841350248
12 ms 212.95.49.139
32 2026-08-26 10:17 639233360361507238
21 ms 212.95.49.139
31 2026-08-26 10:00 639233350067824371
10 ms 212.95.49.139
30 2026-08-26 09:42 639233339545274518
7 ms 212.95.49.139
29 2026-08-26 09:25 639233329214918079
31 ms 212.95.49.139
28 2026-08-26 09:07 639233318749762337
22 ms 212.95.49.139
27 2026-08-26 08:50 639233308387917838
17 ms 212.95.49.139
26 2026-08-26 08:33 639233297961740122
29 ms 212.95.49.139
25 2026-08-26 08:15 639233287487159094
33 ms 212.95.49.139
24 2026-08-26 07:58 639233276995531707
3 ms 212.95.49.139
23 2026-08-26 07:40 639233266521568229
4 ms 212.95.49.139
22 2026-08-26 07:23 639233256081047431
69 ms 212.95.49.139
21 2026-08-26 06:29 639233223620132921
23 ms 212.95.49.139
20 2026-08-26 06:12 639233213287814244
27 ms 212.95.49.139
19 2026-08-26 05:54 639233202925983161
2019 ms 212.95.49.139
18 2026-08-26 05:37 639233192644780696
5 ms 212.95.49.139
17 2026-08-26 05:20 639233182401183833
4 ms 212.95.49.139
16 2026-08-26 05:03 639233172074181051
4 ms 212.95.49.139
15 2026-08-26 04:46 639233161808421455
25 ms 212.95.49.139
14 2026-08-26 04:28 639233151357344052
24 ms 212.95.49.139
13 2026-08-26 04:11 639233141034116946
4 ms 212.95.49.139
12 2026-08-26 03:54 639233130828334142
7 ms 212.95.49.139
11 2026-08-26 03:37 639233120373450007
6 ms 212.95.49.139
10 2026-08-26 03:20 639233110066216193
4 ms 212.95.49.139
9 2026-08-26 02:26 639233078065410564
20 ms 212.95.49.139
8 2026-08-26 02:09 639233067787457832
36 ms 212.95.49.139
7 2026-08-26 01:52 639233057501801162
9 ms 212.95.49.139
6 2026-08-26 01:35 639233047089431703
27 ms 212.95.49.139
5 2026-08-26 01:17 639233036754790688
15 ms 212.95.49.139
4 2026-08-26 01:00 639233026412602472
13 ms 212.95.49.139
3 2026-08-26 00:43 639233016064066127
33 ms 212.95.49.139
2 2026-08-26 00:26 639233005922655772
5 ms 212.95.49.139
1 2026-08-26 00:09 639232995672256907
9 ms 212.95.49.139