DNS response history for server.c21.to

server.c21.to 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 2026-08-27. For this date, NameServerHistory found 20 DNS check records, 20 successful responses, 0 failed responses, and 387 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 server.c21.to.
Records on Selected Date

20

Historical checks stored for this nameserver on selected date

Average Latency

387 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-27 06:19

All timestamps shown in UTC

Latest Resolved IP on Selected Date

117.102.216.132

Most recently resolved hosting IP on selected date

Successful Responses

20

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 server.c21.to

Showing DNS history for 2026-08-27 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
20 2026-08-27 06:19 639234076291157956
265 ms 117.102.216.132
19 2026-08-27 06:02 639234065981939454
285 ms 117.102.216.132
18 2026-08-27 05:45 639234055548642997
283 ms 117.102.216.132
17 2026-08-27 05:27 639234045267979603
285 ms 117.102.216.132
16 2026-08-27 05:10 639234034999717463
288 ms 117.102.216.132
15 2026-08-27 04:53 639234024739225358
290 ms 117.102.216.132
14 2026-08-27 04:36 639234014311170162
291 ms 117.102.216.132
13 2026-08-27 04:18 639234003806017640
284 ms 117.102.216.132
12 2026-08-27 04:01 639233993356203030
279 ms 117.102.216.132
11 2026-08-27 03:08 639233961301716608
284 ms 117.102.216.132
10 2026-08-27 02:50 639233950834200647
2271 ms 117.102.216.132
9 2026-08-27 02:33 639233940431849026
288 ms 117.102.216.132
8 2026-08-27 02:16 639233930110596398
292 ms 117.102.216.132
7 2026-08-27 01:58 639233919705434540
295 ms 117.102.216.132
6 2026-08-27 01:41 639233909452807845
284 ms 117.102.216.132
5 2026-08-27 01:24 639233899096420820
301 ms 117.102.216.132
4 2026-08-27 01:07 639233888707824939
291 ms 117.102.216.132
3 2026-08-27 00:49 639233878461203802
302 ms 117.102.216.132
2 2026-08-27 00:32 639233868060868209
276 ms 117.102.216.132
1 2026-08-27 00:15 639233857450922991
301 ms 117.102.216.132