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 2026-08-23. For this date, NameServerHistory found 147 DNS check records, 144 successful responses, 3 failed responses, and 73 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
147
Historical checks stored for this nameserver on selected date
Average Latency
73 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-23 23:44
All timestamps shown in UTC
Latest Resolved IP on Selected Date
63.176.8.218
Most recently resolved hosting IP on selected date
Successful Responses
144
Checks that returned a measurable response
Failed Responses
3
Checks with no response or no returned latency
Failure Rate
2%
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 2026-08-23 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 |
|---|---|---|---|---|---|
| 147 | 2026-08-23 23:44 | 639231254406598736 |
|
11 ms | 63.176.8.218 |
| 146 | 2026-08-23 23:44 | 639231254406598736 |
|
11 ms | 35.157.26.135 |
| 145 | 2026-08-23 23:27 | 639231244697865594 |
|
37 ms | 63.176.8.218 |
| 144 | 2026-08-23 23:27 | 639231244697865594 |
|
37 ms | 35.157.26.135 |
| 143 | 2026-08-23 23:11 | 639231234893504693 |
|
32 ms | 63.176.8.218 |
| 142 | 2026-08-23 23:11 | 639231234893504693 |
|
32 ms | 35.157.26.135 |
| 141 | 2026-08-23 22:55 | 639231225024549139 |
|
92 ms | 63.176.8.218 |
| 140 | 2026-08-23 22:55 | 639231225024549139 |
|
92 ms | 35.157.26.135 |
| 139 | 2026-08-23 22:38 | 639231214931957622 |
|
147 ms | 35.157.26.135 |
| 138 | 2026-08-23 22:38 | 639231214931957622 |
|
147 ms | 63.176.8.218 |
| 137 | 2026-08-23 22:21 | 639231204962010549 |
|
98 ms | 35.157.26.135 |
| 136 | 2026-08-23 22:21 | 639231204962010549 |
|
98 ms | 63.176.8.218 |
| 135 | 2026-08-23 22:05 | 639231195170138463 |
|
96 ms | 35.157.26.135 |
| 134 | 2026-08-23 22:05 | 639231195170138463 |
|
96 ms | 63.176.8.218 |
| 133 | 2026-08-23 21:48 | 639231185235020577 |
|
30 ms | 63.176.8.218 |
| 132 | 2026-08-23 21:48 | 639231185235020577 |
|
30 ms | 35.157.26.135 |
| 131 | 2026-08-23 21:32 | 639231175558690075 |
|
85 ms | 35.157.26.135 |
| 130 | 2026-08-23 21:32 | 639231175558690075 |
|
85 ms | 63.176.8.218 |
| 129 | 2026-08-23 21:16 | 639231165610444012 |
|
36 ms | 35.157.26.135 |
| 128 | 2026-08-23 21:16 | 639231165610444012 |
|
36 ms | 63.176.8.218 |
| 127 | 2026-08-23 20:23 | 639231133806425363 |
|
27 ms | 35.157.26.135 |
| 126 | 2026-08-23 20:23 | 639231133806425363 |
|
27 ms | 63.176.8.218 |
| 125 | 2026-08-23 20:07 | 639231124203758023 |
|
146 ms | 63.176.8.218 |
| 124 | 2026-08-23 20:07 | 639231124203758023 |
|
146 ms | 35.157.26.135 |
| 123 | 2026-08-23 19:50 | 639231114428262706 |
|
91 ms | 63.176.8.218 |
| 122 | 2026-08-23 19:50 | 639231114428262706 |
|
91 ms | 35.157.26.135 |
| 121 | 2026-08-23 19:34 | 639231104662480065 |
|
16 ms | 35.157.26.135 |
| 120 | 2026-08-23 19:34 | 639231104662480065 |
|
16 ms | 63.176.8.218 |
| 119 | 2026-08-23 19:18 | 639231094840372018 |
|
28 ms | 98.84.224.111 |
| 118 | 2026-08-23 19:18 | 639231094840372018 |
|
28 ms | 18.208.88.157 |
| 117 | 2026-08-23 19:01 | 639231085024583224 |
|
29 ms | 35.157.26.135 |
| 116 | 2026-08-23 19:01 | 639231085024583224 |
|
29 ms | 63.176.8.218 |
| 115 | 2026-08-23 18:45 | 639231075257417427 |
|
71 ms | 63.176.8.218 |
| 114 | 2026-08-23 18:45 | 639231075257417427 |
|
71 ms | 35.157.26.135 |
| 113 | 2026-08-23 18:29 | 639231065516009503 |
|
34 ms | 63.176.8.218 |
| 112 | 2026-08-23 18:29 | 639231065516009503 |
|
34 ms | 35.157.26.135 |
| 111 | 2026-08-23 18:13 | 639231055805348837 |
|
94 ms | 35.157.26.135 |
| 110 | 2026-08-23 18:13 | 639231055805348837 |
|
94 ms | 63.176.8.218 |
| 109 | 2026-08-23 17:56 | 639231045980373765 |
|
46 ms | 35.157.26.135 |
| 108 | 2026-08-23 17:56 | 639231045980373765 |
|
46 ms | 63.176.8.218 |
| 107 | 2026-08-23 17:39 | 639231035984577527 |
|
188 ms | 35.157.26.135 |
| 106 | 2026-08-23 17:39 | 639231035984577527 |
|
188 ms | 63.176.8.218 |
| 105 | 2026-08-23 17:23 | 639231025928115303 |
|
174 ms | 63.176.8.218 |
| 104 | 2026-08-23 17:23 | 639231025928115303 |
|
174 ms | 35.157.26.135 |
| 103 | 2026-08-23 16:30 | 639230994250157583 |
|
- | |
| 102 | 2026-08-23 16:14 | 639230984476411369 |
|
95 ms | 63.176.8.218 |
| 101 | 2026-08-23 16:14 | 639230984476411369 |
|
95 ms | 35.157.26.135 |
| 100 | 2026-08-23 15:58 | 639230974838373450 |
|
119 ms | 35.157.26.135 |
| 99 | 2026-08-23 15:58 | 639230974838373450 |
|
119 ms | 63.176.8.218 |
| 98 | 2026-08-23 15:42 | 639230965244277645 |
|
128 ms | 35.157.26.135 |
| 97 | 2026-08-23 15:42 | 639230965244277645 |
|
128 ms | 63.176.8.218 |
| 96 | 2026-08-23 15:25 | 639230955522101820 |
|
40 ms | 63.176.8.218 |
| 95 | 2026-08-23 15:25 | 639230955522101820 |
|
40 ms | 35.157.26.135 |
| 94 | 2026-08-23 15:09 | 639230945754521603 |
|
113 ms | 63.176.8.218 |
| 93 | 2026-08-23 15:09 | 639230945754521603 |
|
113 ms | 35.157.26.135 |
| 92 | 2026-08-23 14:53 | 639230935852040504 |
|
28 ms | 35.157.26.135 |
| 91 | 2026-08-23 14:53 | 639230935852040504 |
|
28 ms | 63.176.8.218 |
| 90 | 2026-08-23 14:37 | 639230926222061048 |
|
55 ms | 63.176.8.218 |
| 89 | 2026-08-23 14:37 | 639230926222061048 |
|
55 ms | 35.157.26.135 |
| 88 | 2026-08-23 14:20 | 639230916449726907 |
|
31 ms | 35.157.26.135 |
| 87 | 2026-08-23 14:20 | 639230916449726907 |
|
31 ms | 63.176.8.218 |
| 86 | 2026-08-23 14:04 | 639230906595053086 |
|
33 ms | 63.176.8.218 |
| 85 | 2026-08-23 14:04 | 639230906595053086 |
|
33 ms | 35.157.26.135 |
| 84 | 2026-08-23 13:47 | 639230896680429441 |
|
24 ms | 35.157.26.135 |
| 83 | 2026-08-23 13:47 | 639230896680429441 |
|
24 ms | 63.176.8.218 |
| 82 | 2026-08-23 13:31 | 639230886630210965 |
|
166 ms | 35.157.26.135 |
| 81 | 2026-08-23 13:31 | 639230886630210965 |
|
166 ms | 63.176.8.218 |
| 80 | 2026-08-23 12:39 | 639230855430405719 |
|
7 ms | 35.157.26.135 |
| 79 | 2026-08-23 12:39 | 639230855430405719 |
|
7 ms | 63.176.8.218 |
| 78 | 2026-08-23 12:22 | 639230845707499136 |
|
9 ms | 63.176.8.218 |
| 77 | 2026-08-23 12:22 | 639230845707499136 |
|
9 ms | 35.157.26.135 |
| 76 | 2026-08-23 12:06 | 639230836186805419 |
|
129 ms | 63.176.8.218 |
| 75 | 2026-08-23 12:06 | 639230836186805419 |
|
129 ms | 35.157.26.135 |
| 74 | 2026-08-23 11:50 | 639230826493828316 |
|
30 ms | 63.176.8.218 |
| 73 | 2026-08-23 11:50 | 639230826493828316 |
|
30 ms | 35.157.26.135 |
| 72 | 2026-08-23 11:34 | 639230816817882996 |
|
23 ms | 35.157.26.135 |
| 71 | 2026-08-23 11:34 | 639230816817882996 |
|
23 ms | 63.176.8.218 |
| 70 | 2026-08-23 11:18 | 639230806933854189 |
|
47 ms | 63.176.8.218 |
| 69 | 2026-08-23 11:18 | 639230806933854189 |
|
47 ms | 35.157.26.135 |
| 68 | 2026-08-23 11:01 | 639230797120243854 |
|
38 ms | 35.157.26.135 |
| 67 | 2026-08-23 11:01 | 639230797120243854 |
|
38 ms | 63.176.8.218 |
| 66 | 2026-08-23 10:45 | 639230787310272840 |
|
33 ms | 63.176.8.218 |
| 65 | 2026-08-23 10:45 | 639230787310272840 |
|
33 ms | 35.157.26.135 |
| 64 | 2026-08-23 10:29 | 639230777600173142 |
|
76 ms | 35.157.26.135 |
| 63 | 2026-08-23 10:29 | 639230777600173142 |
|
76 ms | 63.176.8.218 |
| 62 | 2026-08-23 10:12 | 639230767665024593 |
|
98 ms | 35.157.26.135 |
| 61 | 2026-08-23 10:12 | 639230767665024593 |
|
98 ms | 63.176.8.218 |
| 60 | 2026-08-23 09:56 | 639230757720962293 |
|
37 ms | 35.157.26.135 |
| 59 | 2026-08-23 09:56 | 639230757720962293 |
|
37 ms | 63.176.8.218 |
| 58 | 2026-08-23 09:39 | 639230747722189784 |
|
180 ms | 35.157.26.135 |
| 57 | 2026-08-23 09:39 | 639230747722189784 |
|
180 ms | 63.176.8.218 |
| 56 | 2026-08-23 08:47 | 639230716313923480 |
|
156 ms | 63.176.8.218 |
| 55 | 2026-08-23 08:47 | 639230716313923480 |
|
156 ms | 35.157.26.135 |
| 54 | 2026-08-23 08:31 | 639230706813835990 |
|
43 ms | 63.176.8.218 |
| 53 | 2026-08-23 08:31 | 639230706813835990 |
|
43 ms | 35.157.26.135 |
| 52 | 2026-08-23 08:14 | 639230696871062203 |
|
- | |
| 51 | 2026-08-23 07:58 | 639230687142781616 |
|
23 ms | 35.157.26.135 |
| 50 | 2026-08-23 07:58 | 639230687142781616 |
|
23 ms | 63.176.8.218 |
| 49 | 2026-08-23 07:42 | 639230677432142227 |
|
114 ms | 63.176.8.218 |
| 48 | 2026-08-23 07:42 | 639230677432142227 |
|
114 ms | 35.157.26.135 |
| 47 | 2026-08-23 07:26 | 639230667686258061 |
|
15 ms | 63.176.8.218 |
| 46 | 2026-08-23 07:26 | 639230667686258061 |
|
15 ms | 35.157.26.135 |
| 45 | 2026-08-23 07:10 | 639230658039243685 |
|
24 ms | 35.157.26.135 |
| 44 | 2026-08-23 07:10 | 639230658039243685 |
|
24 ms | 63.176.8.218 |
| 43 | 2026-08-23 06:54 | 639230648468473803 |
|
61 ms | 35.157.26.135 |
| 42 | 2026-08-23 06:54 | 639230648468473803 |
|
61 ms | 63.176.8.218 |
| 41 | 2026-08-23 06:38 | 639230638829658294 |
|
113 ms | 63.176.8.218 |
| 40 | 2026-08-23 06:38 | 639230638829658294 |
|
113 ms | 35.157.26.135 |
| 39 | 2026-08-23 06:22 | 639230629247017617 |
|
50 ms | 63.176.8.218 |
| 38 | 2026-08-23 06:22 | 639230629247017617 |
|
50 ms | 35.157.26.135 |
| 37 | 2026-08-23 06:06 | 639230619625318239 |
|
27 ms | 35.157.26.135 |
| 36 | 2026-08-23 06:06 | 639230619625318239 |
|
27 ms | 63.176.8.218 |
| 35 | 2026-08-23 05:49 | 639230609697630264 |
|
351 ms | 35.157.26.135 |
| 34 | 2026-08-23 05:49 | 639230609697630264 |
|
351 ms | 63.176.8.218 |
| 33 | 2026-08-23 04:57 | 639230578570131864 |
|
26 ms | 35.157.26.135 |
| 32 | 2026-08-23 04:57 | 639230578570131864 |
|
26 ms | 63.176.8.218 |
| 31 | 2026-08-23 04:41 | 639230568958963168 |
|
51 ms | 35.157.26.135 |
| 30 | 2026-08-23 04:41 | 639230568958963168 |
|
51 ms | 63.176.8.218 |
| 29 | 2026-08-23 04:25 | 639230559287611211 |
|
32 ms | 63.176.8.218 |
| 28 | 2026-08-23 04:25 | 639230559287611211 |
|
32 ms | 35.157.26.135 |
| 27 | 2026-08-23 04:09 | 639230549524312030 |
|
34 ms | 35.157.26.135 |
| 26 | 2026-08-23 04:09 | 639230549524312030 |
|
34 ms | 63.176.8.218 |
| 25 | 2026-08-23 03:52 | 639230539739801669 |
|
82 ms | 63.176.8.218 |
| 24 | 2026-08-23 03:52 | 639230539739801669 |
|
82 ms | 35.157.26.135 |
| 23 | 2026-08-23 03:36 | 639230530084069375 |
|
27 ms | 35.157.26.135 |
| 22 | 2026-08-23 03:36 | 639230530084069375 |
|
27 ms | 63.176.8.218 |
| 21 | 2026-08-23 03:20 | 639230520362691441 |
|
- | |
| 20 | 2026-08-23 03:04 | 639230510677194518 |
|
184 ms | 35.157.26.135 |
| 19 | 2026-08-23 03:04 | 639230510677194518 |
|
184 ms | 63.176.8.218 |
| 18 | 2026-08-23 02:48 | 639230501156002646 |
|
34 ms | 63.176.8.218 |
| 17 | 2026-08-23 02:48 | 639230501156002646 |
|
34 ms | 35.157.26.135 |
| 16 | 2026-08-23 02:32 | 639230491502198541 |
|
157 ms | 63.176.8.218 |
| 15 | 2026-08-23 02:32 | 639230491502198541 |
|
157 ms | 35.157.26.135 |
| 14 | 2026-08-23 02:16 | 639230481860318494 |
|
134 ms | 63.176.8.218 |
| 13 | 2026-08-23 02:16 | 639230481860318494 |
|
134 ms | 35.157.26.135 |
| 12 | 2026-08-23 01:59 | 639230471893008575 |
|
86 ms | 63.176.8.218 |
| 11 | 2026-08-23 01:59 | 639230471893008575 |
|
86 ms | 35.157.26.135 |
| 10 | 2026-08-23 01:06 | 639230440030877421 |
|
73 ms | 63.176.8.218 |
| 9 | 2026-08-23 01:06 | 639230440030877421 |
|
73 ms | 35.157.26.135 |
| 8 | 2026-08-23 00:50 | 639230430479725508 |
|
6 ms | 35.157.26.135 |
| 7 | 2026-08-23 00:50 | 639230430479725508 |
|
6 ms | 63.176.8.218 |
| 6 | 2026-08-23 00:34 | 639230420875160219 |
|
38 ms | 63.176.8.218 |
| 5 | 2026-08-23 00:34 | 639230420875160219 |
|
38 ms | 35.157.26.135 |
| 4 | 2026-08-23 00:18 | 639230411240692575 |
|
83 ms | 35.157.26.135 |
| 3 | 2026-08-23 00:18 | 639230411240692575 |
|
83 ms | 63.176.8.218 |
| 2 | 2026-08-23 00:02 | 639230401550806607 |
|
91 ms | 63.176.8.218 |
| 1 | 2026-08-23 00:02 | 639230401550806607 |
|
91 ms | 35.157.26.135 |