DNS response history for ns201.surbl.net

ns201.surbl.net 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 2026-08-24. For this date, NameServerHistory found 24 DNS check records, 24 successful responses, 0 failed responses, and 308 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 ns201.surbl.net.
Records on Selected Date

24

Historical checks stored for this nameserver on selected date

Average Latency

308 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-24 10:00

All timestamps shown in UTC

Latest Resolved IP on Selected Date

192.42.119.21

Most recently resolved hosting IP on selected date

Successful Responses

24

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 ns201.surbl.net

Showing DNS history for 2026-08-24 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
24 2026-08-24 10:00 639231621644955316
63 ms 192.42.119.21
23 2026-08-24 09:43 639231611478799259
9 ms 192.42.119.21
22 2026-08-24 08:50 639231579923718211
31 ms 192.42.119.21
21 2026-08-24 08:33 639231569810702936
16 ms 192.42.119.21
20 2026-08-24 08:16 639231559762411619
49 ms 192.42.119.21
19 2026-08-24 07:59 639231549663595407
27 ms 192.42.119.21
18 2026-08-24 07:07 639231518076817246
2032 ms 192.42.119.21
17 2026-08-24 06:50 639231508078650885
20 ms 192.42.119.21
16 2026-08-24 06:34 639231498210697093
11 ms 192.42.119.21
15 2026-08-24 06:17 639231488109699360
43 ms 192.42.119.21
14 2026-08-24 05:25 639231456772510692
2008 ms 192.42.119.21
13 2026-08-24 05:09 639231447084631185
22 ms 192.42.119.21
12 2026-08-24 04:52 639231437208519473
26 ms 192.42.119.21
11 2026-08-24 04:35 639231427209627490
31 ms 192.42.119.21
10 2026-08-24 03:43 639231395791246644
2042 ms 192.42.119.21
9 2026-08-24 03:27 639231386075551458
70 ms 192.42.119.21
8 2026-08-24 03:11 639231376208713791
90 ms 192.42.119.21
7 2026-08-24 02:54 639231366170589276
502 ms 192.42.119.21
6 2026-08-24 02:01 639231334732159368
3 ms 192.42.119.21
5 2026-08-24 01:45 639231325035670078
63 ms 192.42.119.21
4 2026-08-24 01:29 639231315132253837
33 ms 192.42.119.21
3 2026-08-24 01:12 639231305014280808
69 ms 192.42.119.21
2 2026-08-24 00:20 639231273779380675
4 ms 192.42.119.21
1 2026-08-24 00:04 639231264180839154
122 ms 192.42.119.21