DNS response history for ns1-r1-dallas.webserversystems.com

ns1-r1-dallas.webserversystems.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 2026-08-27. For this date, NameServerHistory found 40 DNS check records, 40 successful responses, 0 failed responses, and 404 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 ns1-r1-dallas.webserversystems.com.
Records on Selected Date

40

Historical checks stored for this nameserver on selected date

Average Latency

404 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-27 13:14

All timestamps shown in UTC

Latest Resolved IP on Selected Date

174.121.21.3

Most recently resolved hosting IP on selected date

Successful Responses

40

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 ns1-r1-dallas.webserversystems.com

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
40 2026-08-27 13:14 639234327818741376
147 ms 174.121.21.3
39 2026-08-27 12:57 639234317475724313
146 ms 174.121.21.3
38 2026-08-27 12:39 639234307007468133
161 ms 174.121.21.3
37 2026-08-27 12:22 639234296664302575
146 ms 174.121.21.3
36 2026-08-27 12:05 639234286253196126
145 ms 174.121.21.3
35 2026-08-27 11:11 639234253963286387
149 ms 174.121.21.3
34 2026-08-27 10:54 639234243654907465
2147 ms 174.121.21.3
33 2026-08-27 10:36 639234233269654413
148 ms 174.121.21.3
32 2026-08-27 10:19 639234222943951923
153 ms 174.121.21.3
31 2026-08-27 10:02 639234212558002823
2148 ms 174.121.21.3
30 2026-08-27 09:45 639234202117531850
167 ms 174.121.21.3
29 2026-08-27 09:27 639234191649612722
156 ms 174.121.21.3
28 2026-08-27 09:10 639234181105879568
146 ms 174.121.21.3
27 2026-08-27 08:52 639234170713214496
148 ms 174.121.21.3
26 2026-08-27 08:35 639234160341037652
148 ms 174.121.21.3
25 2026-08-27 08:17 639234149799404224
147 ms 174.121.21.3
24 2026-08-27 08:00 639234139553286469
151 ms 174.121.21.3
23 2026-08-27 07:07 639234107183588293
142 ms 174.121.21.3
22 2026-08-27 06:49 639234096905435724
150 ms 174.121.21.3
21 2026-08-27 06:32 639234086579410775
150 ms 174.121.21.3
20 2026-08-27 06:15 639234076291157956
148 ms 174.121.21.3
19 2026-08-27 05:58 639234065981939454
145 ms 174.121.21.3
18 2026-08-27 05:41 639234055548642997
144 ms 174.121.21.3
17 2026-08-27 05:23 639234045267979603
156 ms 174.121.21.3
16 2026-08-27 05:06 639234034999717463
2274 ms 174.121.21.3
15 2026-08-27 04:49 639234024739225358
145 ms 174.121.21.3
14 2026-08-27 04:32 639234014311170162
145 ms 174.121.21.3
13 2026-08-27 04:14 639234003806017640
171 ms 174.121.21.3
12 2026-08-27 03:57 639233993356203030
146 ms 174.121.21.3
11 2026-08-27 03:03 639233961301716608
2145 ms 174.121.21.3
10 2026-08-27 02:46 639233950834200647
2143 ms 174.121.21.3
9 2026-08-27 02:29 639233940431849026
157 ms 174.121.21.3
8 2026-08-27 02:11 639233930110596398
163 ms 174.121.21.3
7 2026-08-27 01:54 639233919705434540
149 ms 174.121.21.3
6 2026-08-27 01:37 639233909452807845
147 ms 174.121.21.3
5 2026-08-27 01:20 639233899096420820
155 ms 174.121.21.3
4 2026-08-27 01:02 639233888707824939
150 ms 174.121.21.3
3 2026-08-27 00:45 639233878461203802
146 ms 174.121.21.3
2 2026-08-27 00:28 639233868060868209
204 ms 174.121.21.3
1 2026-08-27 00:10 639233857450922991
151 ms 174.121.21.3