History for letsencrypt.org
Domain: letsencrypt.org • Tracking since 2026-08-04 23:25 UTC
DNS response history for letsencrypt.org
letsencrypt.org 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 2026-08-20. For this date, NameServerHistory found 114 DNS check records, 114 successful responses, 0 failed responses, and 132 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 letsencrypt.org.
Records on Selected Date
114
Historical checks stored for this nameserver on selected date
Average Latency
132 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-20 23:57
All timestamps shown in UTC
Latest Resolved IP on Selected Date
35.157.26.135
Most recently resolved hosting IP on selected date
Successful Responses
114
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 letsencrypt.org
Showing DNS history for 2026-08-20 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 |
|---|---|---|---|---|---|
| 114 | 2026-08-20 23:57 | 639228670775860800 |
|
5 ms | 35.157.26.135 |
| 113 | 2026-08-20 23:57 | 639228670775860800 |
|
5 ms | 63.176.8.218 |
| 112 | 2026-08-20 23:06 | 639228639850033448 |
|
78 ms | 63.176.8.218 |
| 111 | 2026-08-20 23:06 | 639228639850033448 |
|
78 ms | 35.157.26.135 |
| 110 | 2026-08-20 22:50 | 639228630204271870 |
|
6 ms | 35.157.26.135 |
| 109 | 2026-08-20 22:50 | 639228630204271870 |
|
6 ms | 63.176.8.218 |
| 108 | 2026-08-20 22:33 | 639228620295091135 |
|
46 ms | 35.157.26.135 |
| 107 | 2026-08-20 22:33 | 639228620295091135 |
|
46 ms | 63.176.8.218 |
| 106 | 2026-08-20 22:17 | 639228610298336915 |
|
328 ms | 63.176.8.218 |
| 105 | 2026-08-20 22:17 | 639228610298336915 |
|
328 ms | 35.157.26.135 |
| 104 | 2026-08-20 21:24 | 639228578917047616 |
|
51 ms | 35.157.26.135 |
| 103 | 2026-08-20 21:24 | 639228578917047616 |
|
51 ms | 63.176.8.218 |
| 102 | 2026-08-20 21:08 | 639228569046445709 |
|
18 ms | 35.157.26.135 |
| 101 | 2026-08-20 21:08 | 639228569046445709 |
|
18 ms | 63.176.8.218 |
| 100 | 2026-08-20 20:51 | 639228558946830986 |
|
121 ms | 63.176.8.218 |
| 99 | 2026-08-20 20:51 | 639228558946830986 |
|
121 ms | 35.157.26.135 |
| 98 | 2026-08-20 20:34 | 639228548977359217 |
|
28 ms | 63.176.8.218 |
| 97 | 2026-08-20 20:34 | 639228548977359217 |
|
28 ms | 35.157.26.135 |
| 96 | 2026-08-20 19:42 | 639228517494157668 |
|
2031 ms | 98.84.224.111 |
| 95 | 2026-08-20 19:42 | 639228517494157668 |
|
2031 ms | 18.208.88.157 |
| 94 | 2026-08-20 19:25 | 639228507374116892 |
|
151 ms | 63.176.8.218 |
| 93 | 2026-08-20 19:25 | 639228507374116892 |
|
151 ms | 35.157.26.135 |
| 92 | 2026-08-20 19:08 | 639228497315154893 |
|
45 ms | 63.176.8.218 |
| 91 | 2026-08-20 19:08 | 639228497315154893 |
|
45 ms | 35.157.26.135 |
| 90 | 2026-08-20 18:52 | 639228487287648341 |
|
41 ms | 35.157.26.135 |
| 89 | 2026-08-20 18:52 | 639228487287648341 |
|
41 ms | 63.176.8.218 |
| 88 | 2026-08-20 17:59 | 639228455828123788 |
|
10 ms | 35.157.26.135 |
| 87 | 2026-08-20 17:59 | 639228455828123788 |
|
10 ms | 63.176.8.218 |
| 86 | 2026-08-20 17:43 | 639228445900082244 |
|
26 ms | 63.176.8.218 |
| 85 | 2026-08-20 17:43 | 639228445900082244 |
|
26 ms | 35.157.26.135 |
| 84 | 2026-08-20 17:26 | 639228435866352323 |
|
37 ms | 63.176.8.218 |
| 83 | 2026-08-20 17:26 | 639228435866352323 |
|
37 ms | 35.157.26.135 |
| 82 | 2026-08-20 17:09 | 639228425802273151 |
|
132 ms | 35.157.26.135 |
| 81 | 2026-08-20 17:09 | 639228425802273151 |
|
132 ms | 63.176.8.218 |
| 80 | 2026-08-20 16:16 | 639228393616324230 |
|
23 ms | 63.176.8.218 |
| 79 | 2026-08-20 16:16 | 639228393616324230 |
|
23 ms | 35.157.26.135 |
| 78 | 2026-08-20 15:59 | 639228383590408693 |
|
86 ms | 18.208.88.157 |
| 77 | 2026-08-20 15:59 | 639228383590408693 |
|
86 ms | 98.84.224.111 |
| 76 | 2026-08-20 15:42 | 639228373471467474 |
|
18 ms | 63.176.8.218 |
| 75 | 2026-08-20 15:42 | 639228373471467474 |
|
18 ms | 35.157.26.135 |
| 74 | 2026-08-20 15:25 | 639228363426647311 |
|
25 ms | 63.176.8.218 |
| 73 | 2026-08-20 15:25 | 639228363426647311 |
|
25 ms | 35.157.26.135 |
| 72 | 2026-08-20 14:32 | 639228331681701910 |
|
89 ms | 35.157.26.135 |
| 71 | 2026-08-20 14:32 | 639228331681701910 |
|
89 ms | 63.176.8.218 |
| 70 | 2026-08-20 14:16 | 639228321714746824 |
|
143 ms | 63.176.8.218 |
| 69 | 2026-08-20 14:16 | 639228321714746824 |
|
143 ms | 35.157.26.135 |
| 68 | 2026-08-20 13:59 | 639228311652090262 |
|
35 ms | 63.176.8.218 |
| 67 | 2026-08-20 13:59 | 639228311652090262 |
|
35 ms | 35.157.26.135 |
| 66 | 2026-08-20 13:42 | 639228301670088587 |
|
41 ms | 35.157.26.135 |
| 65 | 2026-08-20 13:42 | 639228301670088587 |
|
41 ms | 63.176.8.218 |
| 64 | 2026-08-20 12:49 | 639228269987976710 |
|
30 ms | 63.176.8.218 |
| 63 | 2026-08-20 12:49 | 639228269987976710 |
|
30 ms | 35.157.26.135 |
| 62 | 2026-08-20 12:33 | 639228260009452308 |
|
16 ms | 63.176.8.218 |
| 61 | 2026-08-20 12:33 | 639228260009452308 |
|
16 ms | 35.157.26.135 |
| 60 | 2026-08-20 12:16 | 639228249661740894 |
|
46 ms | 35.157.26.135 |
| 59 | 2026-08-20 12:16 | 639228249661740894 |
|
46 ms | 63.176.8.218 |
| 58 | 2026-08-20 11:59 | 639228239552680346 |
|
134 ms | 63.176.8.218 |
| 57 | 2026-08-20 11:59 | 639228239552680346 |
|
134 ms | 35.157.26.135 |
| 56 | 2026-08-20 11:06 | 639228207667580819 |
|
40 ms | 35.157.26.135 |
| 55 | 2026-08-20 11:06 | 639228207667580819 |
|
40 ms | 63.176.8.218 |
| 54 | 2026-08-20 10:49 | 639228197494011560 |
|
150 ms | 63.176.8.218 |
| 53 | 2026-08-20 10:49 | 639228197494011560 |
|
150 ms | 35.157.26.135 |
| 52 | 2026-08-20 10:32 | 639228187497039939 |
|
117 ms | 35.157.26.135 |
| 51 | 2026-08-20 10:32 | 639228187497039939 |
|
117 ms | 63.176.8.218 |
| 50 | 2026-08-20 10:15 | 639228177408432646 |
|
13 ms | 63.176.8.218 |
| 49 | 2026-08-20 10:15 | 639228177408432646 |
|
13 ms | 35.157.26.135 |
| 48 | 2026-08-20 09:23 | 639228146356166262 |
|
6 ms | 35.157.26.135 |
| 47 | 2026-08-20 09:23 | 639228146356166262 |
|
6 ms | 63.176.8.218 |
| 46 | 2026-08-20 09:07 | 639228136541505712 |
|
163 ms | 63.176.8.218 |
| 45 | 2026-08-20 09:07 | 639228136541505712 |
|
163 ms | 35.157.26.135 |
| 44 | 2026-08-20 08:50 | 639228126519136598 |
|
146 ms | 35.157.26.135 |
| 43 | 2026-08-20 08:50 | 639228126519136598 |
|
146 ms | 63.176.8.218 |
| 42 | 2026-08-20 08:34 | 639228116537148885 |
|
111 ms | 35.157.26.135 |
| 41 | 2026-08-20 08:34 | 639228116537148885 |
|
111 ms | 63.176.8.218 |
| 40 | 2026-08-20 07:42 | 639228085320764351 |
|
131 ms | 35.157.26.135 |
| 39 | 2026-08-20 07:42 | 639228085320764351 |
|
131 ms | 63.176.8.218 |
| 38 | 2026-08-20 07:25 | 639228075444604839 |
|
12 ms | 35.157.26.135 |
| 37 | 2026-08-20 07:25 | 639228075444604839 |
|
12 ms | 63.176.8.218 |
| 36 | 2026-08-20 07:09 | 639228065615498985 |
|
32 ms | 63.176.8.218 |
| 35 | 2026-08-20 07:09 | 639228065615498985 |
|
32 ms | 35.157.26.135 |
| 34 | 2026-08-20 06:52 | 639228055675321422 |
|
228 ms | 35.157.26.135 |
| 33 | 2026-08-20 06:52 | 639228055675321422 |
|
228 ms | 63.176.8.218 |
| 32 | 2026-08-20 06:00 | 639228024230839396 |
|
64 ms | 18.208.88.157 |
| 31 | 2026-08-20 06:00 | 639228024230839396 |
|
64 ms | 98.84.224.111 |
| 30 | 2026-08-20 05:44 | 639228014720406505 |
|
29 ms | 35.157.26.135 |
| 29 | 2026-08-20 05:44 | 639228014720406505 |
|
29 ms | 63.176.8.218 |
| 28 | 2026-08-20 05:28 | 639228004930827030 |
|
41 ms | 63.176.8.218 |
| 27 | 2026-08-20 05:28 | 639228004930827030 |
|
41 ms | 35.157.26.135 |
| 26 | 2026-08-20 05:11 | 639227995103340154 |
|
5 ms | 63.176.8.218 |
| 25 | 2026-08-20 05:11 | 639227995103340154 |
|
5 ms | 35.157.26.135 |
| 24 | 2026-08-20 04:19 | 639227963811374894 |
|
29 ms | 35.157.26.135 |
| 23 | 2026-08-20 04:19 | 639227963811374894 |
|
29 ms | 63.176.8.218 |
| 22 | 2026-08-20 04:03 | 639227954132571365 |
|
11 ms | 35.157.26.135 |
| 21 | 2026-08-20 04:03 | 639227954132571365 |
|
11 ms | 63.176.8.218 |
| 20 | 2026-08-20 03:47 | 639227944541208342 |
|
47 ms | 63.176.8.218 |
| 19 | 2026-08-20 03:47 | 639227944541208342 |
|
47 ms | 35.157.26.135 |
| 18 | 2026-08-20 03:31 | 639227934657213484 |
|
31 ms | 35.157.26.135 |
| 17 | 2026-08-20 03:31 | 639227934657213484 |
|
31 ms | 63.176.8.218 |
| 16 | 2026-08-20 02:39 | 639227903628145469 |
|
76 ms | 35.157.26.135 |
| 15 | 2026-08-20 02:39 | 639227903628145469 |
|
76 ms | 63.176.8.218 |
| 14 | 2026-08-20 02:23 | 639227893995483475 |
|
15 ms | 63.176.8.218 |
| 13 | 2026-08-20 02:23 | 639227893995483475 |
|
15 ms | 35.157.26.135 |
| 12 | 2026-08-20 02:07 | 639227884280244209 |
|
17 ms | 63.176.8.218 |
| 11 | 2026-08-20 02:07 | 639227884280244209 |
|
17 ms | 35.157.26.135 |
| 10 | 2026-08-20 01:50 | 639227874371147132 |
|
2020 ms | 98.84.224.111 |
| 9 | 2026-08-20 01:50 | 639227874371147132 |
|
2020 ms | 18.208.88.157 |
| 8 | 2026-08-20 00:58 | 639227843224256432 |
|
23 ms | 35.157.26.135 |
| 7 | 2026-08-20 00:58 | 639227843224256432 |
|
23 ms | 63.176.8.218 |
| 6 | 2026-08-20 00:42 | 639227833720403506 |
|
53 ms | 63.176.8.218 |
| 5 | 2026-08-20 00:42 | 639227833720403506 |
|
53 ms | 35.157.26.135 |
| 4 | 2026-08-20 00:26 | 639227824170728278 |
|
70 ms | 63.176.8.218 |
| 3 | 2026-08-20 00:26 | 639227824170728278 |
|
70 ms | 35.157.26.135 |
| 2 | 2026-08-20 00:11 | 639227814865867570 |
|
4 ms | 63.176.8.218 |
| 1 | 2026-08-20 00:11 | 639227814865867570 |
|
4 ms | 35.157.26.135 |