DNS response history for ns1.fastcom.cz

ns1.fastcom.cz 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 2026-08-25. For this date, NameServerHistory found 42 DNS check records, 42 successful responses, 0 failed responses, and 207 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.fastcom.cz.
Records on Selected Date

42

Historical checks stored for this nameserver on selected date

Average Latency

207 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 14:16

All timestamps shown in UTC

Latest Resolved IP on Selected Date

91.219.45.251

Most recently resolved hosting IP on selected date

Successful Responses

42

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.fastcom.cz

Showing DNS history for 2026-08-25 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
42 2026-08-25 14:16 639232638994329666
101 ms 91.219.45.251
41 2026-08-25 13:59 639232628614783237
96 ms 91.219.45.251
40 2026-08-25 13:42 639232618360728578
123 ms 91.219.45.251
39 2026-08-25 13:25 639232608016476376
75 ms 91.219.45.251
38 2026-08-25 13:07 639232597643611557
2028 ms 91.219.45.251
37 2026-08-25 12:50 639232587225721862
24 ms 91.219.45.251
36 2026-08-25 12:33 639232576780683689
89 ms 91.219.45.251
35 2026-08-25 12:15 639232566381512620
9 ms 91.219.45.251
34 2026-08-25 11:58 639232556111768563
50 ms 91.219.45.251
33 2026-08-25 11:41 639232545839529039
2043 ms 91.219.45.251
32 2026-08-25 11:23 639232535349285207
59 ms 91.219.45.251
31 2026-08-25 11:06 639232524938080723
80 ms 91.219.45.251
30 2026-08-25 10:12 639232492740373468
37 ms 91.219.45.251
29 2026-08-25 09:55 639232482235303141
2016 ms 91.219.45.251
28 2026-08-25 09:38 639232471861770303
32 ms 91.219.45.251
27 2026-08-25 09:21 639232461630217327
55 ms 91.219.45.251
26 2026-08-25 09:03 639232451282965990
126 ms 91.219.45.251
25 2026-08-25 08:46 639232440814614938
45 ms 91.219.45.251
24 2026-08-25 08:28 639232430410720425
64 ms 91.219.45.251
23 2026-08-25 08:11 639232420003096185
56 ms 91.219.45.251
22 2026-08-25 07:54 639232409467287444
83 ms 91.219.45.251
21 2026-08-25 07:36 639232399077195997
4 ms 91.219.45.251
20 2026-08-25 07:19 639232388731528337
88 ms 91.219.45.251
19 2026-08-25 07:02 639232378288598612
97 ms 91.219.45.251
18 2026-08-25 06:08 639232346196373643
82 ms 91.219.45.251
17 2026-08-25 05:51 639232336112370741
41 ms 91.219.45.251
16 2026-08-25 05:35 639232326146508970
24 ms 91.219.45.251
15 2026-08-25 05:18 639232316189381720
104 ms 91.219.45.251
14 2026-08-25 05:02 639232306217998913
44 ms 91.219.45.251
13 2026-08-25 04:45 639232296255744174
65 ms 91.219.45.251
12 2026-08-25 04:28 639232286095760789
94 ms 91.219.45.251
11 2026-08-25 04:11 639232276086186273
42 ms 91.219.45.251
10 2026-08-25 03:54 639232265900986425
124 ms 91.219.45.251
9 2026-08-25 03:37 639232255723518075
110 ms 91.219.45.251
8 2026-08-25 03:20 639232245484452890
73 ms 91.219.45.251
7 2026-08-25 03:03 639232235157175331
14 ms 91.219.45.251
6 2026-08-25 02:10 639232203197189095
42 ms 91.219.45.251
5 2026-08-25 01:53 639232192844564298
47 ms 91.219.45.251
4 2026-08-25 01:35 639232182496008942
65 ms 91.219.45.251
3 2026-08-25 01:18 639232172197053132
88 ms 91.219.45.251
2 2026-08-25 00:25 639232140250307418
61 ms 91.219.45.251
1 2026-08-25 00:08 639232129927860324
92 ms 91.219.45.251