techprep.org - dns.ninja
techprep.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a03:2880:f003:c07:face:b00c:0:2🇺🇸 Facebook2a03:2880:f003::/48 , Inc. | ||||||
| PTR | edge-star6-shv-01-iad3.facebook.com | ||||||
| A | 31.13.66.4🇺🇸 Facebook31.13.66.0/24 , Inc. | ||||||
| NS | a.ns.facebook.com ⭐ | ||||||
| A | 2a03:2880:f0fc:c:face:b00c:0:35🇺🇸 Facebook2a03:2880:f0fc::/48 | ||||||
| PTR | a.ns.facebook.com | ||||||
| A | 129.134.30.12🇺🇸 Facebook129.134.30.0/24 , Inc. | ||||||
| NS | b.ns.facebook.com | ||||||
| A | 2a03:2880:f0fd:c:face:b00c:0:35🇺🇸 Facebook2a03:2880:f0fd::/48 | ||||||
| PTR | b.ns.facebook.com | ||||||
| A | 129.134.31.12🇺🇸 Facebook129.134.31.0/24 , Inc. | ||||||
| NS | c.ns.facebook.com | ||||||
| A | 2a03:2880:f1fc:c:face:b00c:0:35🇺🇸 Facebook2a03:2880:f1fc::/48 | ||||||
| PTR | c.ns.facebook.com | ||||||
| A | 185.89.218.12🇮🇱 Facebook185.89.218.0/24 | ||||||
| NS | d.ns.facebook.com | ||||||
| A | 2a03:2880:f1fd:c:face:b00c:0:35🇺🇸 Facebook2a03:2880:f1fd::/48 | ||||||
| PTR | d.ns.facebook.com | ||||||
| A | 185.89.219.12🇮🇱 Facebook185.89.219.0/24 | ||||||
| TXT | v=spf1 a ~all | ||||||
| TXT | 22b103463bc04b33a12a381dc3dea8da | ||||||
| HTTPS | HTTP/2, HTTP/3 | ||||||
| HTTPS | HTTP/2, HTTP/3 | ||||||
| SOA | a.ns.facebook.comdns@facebook.com serial=4207849484 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1782751643 | ||||||
Same first word
Similar names
preptech.com |
epprecht.com.br |
epprecht.net |
epprecht.com |
perphect.com |
cheppert.de |
preptech.org |
treppche.de |
epprecht.ch |
percepth.in |
preptech.ca |
etchprep.com |
perptech.com |
perptech.net |
DNS History
31 records (6 active, 25 former)
●NSa.ns.facebook.com2015-12-01 → 2026-06-29 · 3 obs
○ 2015-08-09 19:39:30
● 2015-12-01 17:51:58
● 2026-06-29 17:14:28
● 2015-12-01 17:51:58
● 2026-06-29 17:14:28
●NSb.ns.facebook.com2015-12-01 → 2026-06-29 · 3 obs
○ 2015-08-09 19:39:30
● 2015-12-01 17:51:58
● 2026-06-29 17:14:28
● 2015-12-01 17:51:58
● 2026-06-29 17:14:28
●NSc.ns.facebook.com2026-02-15 → 2026-06-29 · 3 obs
○ 2015-12-01 17:51:58
● 2026-02-15 22:53:28
● 2026-06-29 17:14:28
● 2026-02-15 22:53:28
● 2026-06-29 17:14:28
●NSd.ns.facebook.com2026-02-15 → 2026-06-29 · 3 obs
○ 2015-12-01 17:51:58
● 2026-02-15 22:53:28
● 2026-06-29 17:14:28
● 2026-02-15 22:53:28
● 2026-06-29 17:14:28
○NSns1.domainapps.com2015-08-09 → 2015-08-09 · 3 obs
● 2015-08-09 19:39:30
○ 2015-12-01 17:51:58
○ 2026-06-29 17:14:28
○ 2015-12-01 17:51:58
○ 2026-06-29 17:14:28
○NSns2.domainapps.com2015-08-09 → 2015-08-09 · 3 obs
● 2015-08-09 19:39:30
○ 2015-12-01 17:51:58
○ 2026-06-29 17:14:28
○ 2015-12-01 17:51:58
○ 2026-06-29 17:14:28
○MXmail.b-io.co2015-08-09 → 2015-08-09 · 3 obs
● 2015-08-09 19:39:30
○ 2015-12-01 17:51:58
○ 2026-06-29 17:14:28
○ 2015-12-01 17:51:58
○ 2026-06-29 17:14:28
○A157.240.214.12026-02-15 → 2026-06-24 · 39 obs
○ 2017-08-08 20:13:30
● 2026-02-15 22:53:28
○ 2026-02-16 00:10:04
● 2026-02-16 03:08:46
● 2026-02-16 13:25:32
○ 2026-02-17 00:09:06
● 2026-02-17 04:40:44
● 2026-02-17 09:31:56
○ 2026-02-18 00:09:50
● 2026-02-18 09:36:08
● 2026-02-18 15:27:02
○ 2026-02-19 00:09:40
○ 2026-02-24 09:58:44
● 2026-02-24 23:37:46
○ 2026-02-26 20:57:10
○ 2026-03-11 21:04:56
● 2026-03-12 07:04:24
○ 2026-03-12 21:56:18
○ 2026-03-15 04:21:02
● 2026-03-18 06:54:06
○ 2026-03-21 13:49:32
○ 2026-04-08 15:48:50
● 2026-04-09 18:29:02
○ 2026-04-10 16:55:50
○ 2026-05-24 21:53:48
● 2026-05-28 17:22:44
○ 2026-06-01 10:49:40
● 2026-06-03 10:24:34
○ 2026-06-03 16:44:34
○ 2026-06-03 19:16:50
● 2026-06-03 23:09:30
● 2026-06-04 14:16:40
○ 2026-06-05 22:47:20
○ 2026-06-08 09:19:08
● 2026-06-10 07:07:38
○ 2026-06-10 18:47:56
● 2026-06-24 07:01:10
○ 2026-06-24 23:24:02
○ 2026-06-29 17:14:28
● 2026-02-15 22:53:28
○ 2026-02-16 00:10:04
● 2026-02-16 03:08:46
● 2026-02-16 13:25:32
○ 2026-02-17 00:09:06
● 2026-02-17 04:40:44
● 2026-02-17 09:31:56
○ 2026-02-18 00:09:50
● 2026-02-18 09:36:08
● 2026-02-18 15:27:02
○ 2026-02-19 00:09:40
○ 2026-02-24 09:58:44
● 2026-02-24 23:37:46
○ 2026-02-26 20:57:10
○ 2026-03-11 21:04:56
● 2026-03-12 07:04:24
○ 2026-03-12 21:56:18
○ 2026-03-15 04:21:02
● 2026-03-18 06:54:06
○ 2026-03-21 13:49:32
○ 2026-04-08 15:48:50
● 2026-04-09 18:29:02
○ 2026-04-10 16:55:50
○ 2026-05-24 21:53:48
● 2026-05-28 17:22:44
○ 2026-06-01 10:49:40
● 2026-06-03 10:24:34
○ 2026-06-03 16:44:34
○ 2026-06-03 19:16:50
● 2026-06-03 23:09:30
● 2026-06-04 14:16:40
○ 2026-06-05 22:47:20
○ 2026-06-08 09:19:08
● 2026-06-10 07:07:38
○ 2026-06-10 18:47:56
● 2026-06-24 07:01:10
○ 2026-06-24 23:24:02
○ 2026-06-29 17:14:28
○A157.240.241.172026-06-08 → 2026-06-08 · 4 obs
○ 2026-06-08 02:38:36
● 2026-06-08 06:55:02
○ 2026-06-08 08:48:56
○ 2026-06-29 17:14:28
● 2026-06-08 06:55:02
○ 2026-06-08 08:48:56
○ 2026-06-29 17:14:28
○A163.70.151.232026-02-24 → 2026-04-26 · 36 obs
○ 2026-02-22 20:18:22
● 2026-02-24 09:58:44
○ 2026-02-24 23:37:46
○ 2026-02-26 22:55:02
● 2026-02-27 12:24:34
○ 2026-02-27 17:31:36
○ 2026-03-04 19:30:04
● 2026-03-04 23:04:44
○ 2026-03-05 00:15:38
○ 2026-03-08 21:15:50
● 2026-03-09 21:04:16
○ 2026-03-11 16:17:44
○ 2026-03-12 07:04:24
● 2026-03-12 21:56:18
○ 2026-03-13 19:31:18
● 2026-03-14 13:45:08
● 2026-03-15 04:21:02
○ 2026-03-18 06:54:06
● 2026-03-21 13:49:32
○ 2026-03-25 21:39:24
● 2026-03-27 01:04:28
○ 2026-03-27 01:48:58
● 2026-03-28 12:26:24
○ 2026-04-03 04:16:02
● 2026-04-04 16:51:18
○ 2026-04-04 17:56:52
● 2026-04-05 20:54:12
○ 2026-04-08 15:48:50
○ 2026-04-10 21:51:14
● 2026-04-11 22:31:34
● 2026-04-12 01:25:52
○ 2026-04-16 00:10:38
○ 2026-04-25 19:57:02
● 2026-04-26 14:54:46
○ 2026-05-24 21:53:48
○ 2026-06-29 17:14:28
● 2026-02-24 09:58:44
○ 2026-02-24 23:37:46
○ 2026-02-26 22:55:02
● 2026-02-27 12:24:34
○ 2026-02-27 17:31:36
○ 2026-03-04 19:30:04
● 2026-03-04 23:04:44
○ 2026-03-05 00:15:38
○ 2026-03-08 21:15:50
● 2026-03-09 21:04:16
○ 2026-03-11 16:17:44
○ 2026-03-12 07:04:24
● 2026-03-12 21:56:18
○ 2026-03-13 19:31:18
● 2026-03-14 13:45:08
● 2026-03-15 04:21:02
○ 2026-03-18 06:54:06
● 2026-03-21 13:49:32
○ 2026-03-25 21:39:24
● 2026-03-27 01:04:28
○ 2026-03-27 01:48:58
● 2026-03-28 12:26:24
○ 2026-04-03 04:16:02
● 2026-04-04 16:51:18
○ 2026-04-04 17:56:52
● 2026-04-05 20:54:12
○ 2026-04-08 15:48:50
○ 2026-04-10 21:51:14
● 2026-04-11 22:31:34
● 2026-04-12 01:25:52
○ 2026-04-16 00:10:38
○ 2026-04-25 19:57:02
● 2026-04-26 14:54:46
○ 2026-05-24 21:53:48
○ 2026-06-29 17:14:28
○A192.0.79.322015-12-01 → 2017-08-08 · 7 obs
○ 2015-08-09 19:39:30
● 2015-12-01 17:51:58
○ 2016-03-04 19:16:30
● 2016-06-24 05:51:24
● 2017-08-08 20:13:30
○ 2026-02-15 22:53:28
○ 2026-06-29 17:14:28
● 2015-12-01 17:51:58
○ 2016-03-04 19:16:30
● 2016-06-24 05:51:24
● 2017-08-08 20:13:30
○ 2026-02-15 22:53:28
○ 2026-06-29 17:14:28
○A192.0.79.332016-03-04 → 2017-08-08 · 7 obs
○ 2015-12-01 17:51:58
● 2016-03-04 19:16:30
○ 2016-06-24 05:51:24
● 2017-02-07 04:59:26
● 2017-08-08 20:13:30
○ 2026-02-15 22:53:28
○ 2026-06-29 17:14:28
● 2016-03-04 19:16:30
○ 2016-06-24 05:51:24
● 2017-02-07 04:59:26
● 2017-08-08 20:13:30
○ 2026-02-15 22:53:28
○ 2026-06-29 17:14:28
●A2a03:2880:f003:c07:face:b00c:0:22026-02-16 → 2026-06-29 · 66 obs
○ 2026-02-15 22:53:28
● 2026-02-16 00:10:04
○ 2026-02-16 03:08:46
○ 2026-02-16 13:25:32
● 2026-02-17 00:09:06
○ 2026-02-17 04:40:44
○ 2026-02-17 09:31:56
● 2026-02-18 00:09:50
○ 2026-02-18 09:36:08
○ 2026-02-18 15:27:02
● 2026-02-19 00:09:40
● 2026-02-19 04:21:50
○ 2026-02-20 10:27:32
● 2026-02-22 18:11:56
○ 2026-02-22 20:18:22
○ 2026-02-24 23:37:46
● 2026-02-26 20:57:10
● 2026-02-26 22:55:02
○ 2026-02-27 12:24:34
○ 2026-02-27 17:31:36
● 2026-02-28 19:15:32
● 2026-03-02 20:21:52
○ 2026-03-04 10:19:32
○ 2026-03-04 23:04:44
● 2026-03-05 00:15:38
● 2026-03-08 21:15:50
○ 2026-03-09 21:04:16
● 2026-03-11 16:17:44
● 2026-03-11 21:04:56
○ 2026-03-12 07:04:24
○ 2026-03-12 21:56:18
● 2026-03-13 19:31:18
○ 2026-03-14 13:45:08
○ 2026-03-27 01:04:28
● 2026-03-27 01:48:58
○ 2026-03-28 12:26:24
○ 2026-04-12 01:25:52
● 2026-04-16 00:10:38
● 2026-04-16 00:54:12
○ 2026-04-17 20:02:42
● 2026-04-25 17:32:14
● 2026-04-25 19:57:02
○ 2026-04-26 14:54:46
● 2026-05-24 21:53:48
○ 2026-05-28 17:22:44
● 2026-06-01 10:49:40
○ 2026-06-03 10:24:34
● 2026-06-03 16:44:34
● 2026-06-03 19:16:50
○ 2026-06-03 23:09:30
○ 2026-06-04 14:16:40
● 2026-06-05 22:47:20
● 2026-06-07 08:22:14
○ 2026-06-08 02:38:36
○ 2026-06-10 07:07:38
● 2026-06-10 18:47:56
● 2026-06-15 14:21:44
○ 2026-06-16 23:30:04
● 2026-06-17 17:19:36
○ 2026-06-18 16:45:34
● 2026-06-20 12:42:06
○ 2026-06-22 18:05:48
● 2026-06-24 23:24:02
○ 2026-06-26 01:32:42
● 2026-06-29 08:09:12
● 2026-06-29 17:14:28
● 2026-02-16 00:10:04
○ 2026-02-16 03:08:46
○ 2026-02-16 13:25:32
● 2026-02-17 00:09:06
○ 2026-02-17 04:40:44
○ 2026-02-17 09:31:56
● 2026-02-18 00:09:50
○ 2026-02-18 09:36:08
○ 2026-02-18 15:27:02
● 2026-02-19 00:09:40
● 2026-02-19 04:21:50
○ 2026-02-20 10:27:32
● 2026-02-22 18:11:56
○ 2026-02-22 20:18:22
○ 2026-02-24 23:37:46
● 2026-02-26 20:57:10
● 2026-02-26 22:55:02
○ 2026-02-27 12:24:34
○ 2026-02-27 17:31:36
● 2026-02-28 19:15:32
● 2026-03-02 20:21:52
○ 2026-03-04 10:19:32
○ 2026-03-04 23:04:44
● 2026-03-05 00:15:38
● 2026-03-08 21:15:50
○ 2026-03-09 21:04:16
● 2026-03-11 16:17:44
● 2026-03-11 21:04:56
○ 2026-03-12 07:04:24
○ 2026-03-12 21:56:18
● 2026-03-13 19:31:18
○ 2026-03-14 13:45:08
○ 2026-03-27 01:04:28
● 2026-03-27 01:48:58
○ 2026-03-28 12:26:24
○ 2026-04-12 01:25:52
● 2026-04-16 00:10:38
● 2026-04-16 00:54:12
○ 2026-04-17 20:02:42
● 2026-04-25 17:32:14
● 2026-04-25 19:57:02
○ 2026-04-26 14:54:46
● 2026-05-24 21:53:48
○ 2026-05-28 17:22:44
● 2026-06-01 10:49:40
○ 2026-06-03 10:24:34
● 2026-06-03 16:44:34
● 2026-06-03 19:16:50
○ 2026-06-03 23:09:30
○ 2026-06-04 14:16:40
● 2026-06-05 22:47:20
● 2026-06-07 08:22:14
○ 2026-06-08 02:38:36
○ 2026-06-10 07:07:38
● 2026-06-10 18:47:56
● 2026-06-15 14:21:44
○ 2026-06-16 23:30:04
● 2026-06-17 17:19:36
○ 2026-06-18 16:45:34
● 2026-06-20 12:42:06
○ 2026-06-22 18:05:48
● 2026-06-24 23:24:02
○ 2026-06-26 01:32:42
● 2026-06-29 08:09:12
● 2026-06-29 17:14:28
○A2a03:2880:f012:1:face:b00c:0:12026-02-20 → 2026-06-08 · 28 obs
○ 2026-02-19 04:21:50
● 2026-02-20 10:27:32
○ 2026-02-22 18:11:56
● 2026-02-22 20:18:22
○ 2026-02-24 09:58:44
○ 2026-02-27 12:24:34
● 2026-02-27 17:31:36
○ 2026-02-28 19:15:32
○ 2026-03-02 20:21:52
● 2026-03-04 10:19:32
● 2026-03-04 19:30:04
○ 2026-03-04 23:04:44
○ 2026-03-28 12:26:24
● 2026-04-03 04:16:02
○ 2026-04-04 16:51:18
● 2026-04-04 17:56:52
○ 2026-04-05 20:54:12
● 2026-04-08 15:48:50
○ 2026-04-09 18:29:02
● 2026-04-10 16:55:50
○ 2026-04-10 21:51:14
○ 2026-04-16 00:54:12
● 2026-04-17 20:02:42
○ 2026-04-25 17:32:14
○ 2026-06-08 08:48:56
● 2026-06-08 09:19:08
○ 2026-06-10 07:07:38
○ 2026-06-29 17:14:28
● 2026-02-20 10:27:32
○ 2026-02-22 18:11:56
● 2026-02-22 20:18:22
○ 2026-02-24 09:58:44
○ 2026-02-27 12:24:34
● 2026-02-27 17:31:36
○ 2026-02-28 19:15:32
○ 2026-03-02 20:21:52
● 2026-03-04 10:19:32
● 2026-03-04 19:30:04
○ 2026-03-04 23:04:44
○ 2026-03-28 12:26:24
● 2026-04-03 04:16:02
○ 2026-04-04 16:51:18
● 2026-04-04 17:56:52
○ 2026-04-05 20:54:12
● 2026-04-08 15:48:50
○ 2026-04-09 18:29:02
● 2026-04-10 16:55:50
○ 2026-04-10 21:51:14
○ 2026-04-16 00:54:12
● 2026-04-17 20:02:42
○ 2026-04-25 17:32:14
○ 2026-06-08 08:48:56
● 2026-06-08 09:19:08
○ 2026-06-10 07:07:38
○ 2026-06-29 17:14:28
○A2a03:2880:f012:100:face:b00c:0:22026-06-08 → 2026-06-08 · 4 obs
○ 2026-06-08 02:38:36
● 2026-06-08 06:55:02
○ 2026-06-08 08:48:56
○ 2026-06-29 17:14:28
● 2026-06-08 06:55:02
○ 2026-06-08 08:48:56
○ 2026-06-29 17:14:28
○A2a03:2880:f032:11:face:b00c:0:22026-04-10 → 2026-06-08 · 9 obs
○ 2026-04-10 16:55:50
● 2026-04-10 21:51:14
○ 2026-04-11 22:31:34
○ 2026-06-07 08:22:14
● 2026-06-08 02:38:36
○ 2026-06-08 06:55:02
● 2026-06-08 08:48:56
○ 2026-06-08 09:19:08
○ 2026-06-29 17:14:28
● 2026-04-10 21:51:14
○ 2026-04-11 22:31:34
○ 2026-06-07 08:22:14
● 2026-06-08 02:38:36
○ 2026-06-08 06:55:02
● 2026-06-08 08:48:56
○ 2026-06-08 09:19:08
○ 2026-06-29 17:14:28
○A2a03:2880:f058:100:face:b00c:0:22026-02-15 → 2026-06-24 · 39 obs
○ 2017-08-08 20:13:30
● 2026-02-15 22:53:28
○ 2026-02-16 00:10:04
● 2026-02-16 03:08:46
● 2026-02-16 13:25:32
○ 2026-02-17 00:09:06
● 2026-02-17 04:40:44
● 2026-02-17 09:31:56
○ 2026-02-18 00:09:50
● 2026-02-18 09:36:08
● 2026-02-18 15:27:02
○ 2026-02-19 00:09:40
○ 2026-02-24 09:58:44
● 2026-02-24 23:37:46
○ 2026-02-26 20:57:10
○ 2026-03-11 21:04:56
● 2026-03-12 07:04:24
○ 2026-03-12 21:56:18
○ 2026-03-15 04:21:02
● 2026-03-18 06:54:06
○ 2026-03-21 13:49:32
○ 2026-04-08 15:48:50
● 2026-04-09 18:29:02
○ 2026-04-10 16:55:50
○ 2026-05-24 21:53:48
● 2026-05-28 17:22:44
○ 2026-06-01 10:49:40
● 2026-06-03 10:24:34
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○A2a03:2880:f0a5:118:face:b00c:0:22026-02-24 → 2026-04-26 · 36 obs
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○A2a03:2880:f366:8d:face:b00c:0:22026-02-15 → 2026-06-29 · 2 obs
○ 2026-02-15 22:53:28
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○A2a03:2880:f36f:8d:face:b00c:0:22026-06-26 → 2026-06-26 · 4 obs
○ 2026-06-24 23:24:02
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○A2a03:2880:f377:8d:face:b00c:0:22026-06-16 → 2026-06-28 · 8 obs
○ 2026-06-15 14:21:44
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○A2a03:2880:f380:8d:face:b00c:0:22026-03-25 → 2026-06-22 · 6 obs
○ 2026-03-21 13:49:32
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●A31.13.66.42026-02-16 → 2026-06-29 · 66 obs
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○A31.13.71.12026-02-20 → 2026-06-08 · 28 obs
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○A31.13.73.182026-04-10 → 2026-06-08 · 9 obs
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○A50.97.87.2532015-08-09 → 2015-08-09 · 3 obs
● 2015-08-09 19:39:30
○ 2015-12-01 17:51:58
○ 2026-06-29 17:14:28
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○A57.144.204.1412026-02-15 → 2026-06-29 · 2 obs
○ 2026-02-15 22:53:28
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○A57.144.222.1412026-06-26 → 2026-06-26 · 4 obs
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○A57.144.238.1412026-06-16 → 2026-06-28 · 8 obs
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○A57.145.0.1412026-03-25 → 2026-06-22 · 6 obs
○ 2026-03-21 13:49:32
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○A57.145.2.1412026-06-07 → 2026-06-07 · 4 obs
○ 2026-06-06 03:51:50
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🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| techprep.org | c.ns.facebook.com, b.ns.facebook.com, a.ns.facebook.com, d.ns.facebook.com | - |
✅ Authoritative Response
Server:185.89.218.12
NS records: c.ns.facebook.com, b.ns.facebook.com, a.ns.facebook.com, d.ns.facebook.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for techprep.org (unsigned zone)
⏱️ Timing
Total: 494ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.13.66.4 |
| AAAA | 1 | 2a03:2880:f003:c07:face:b00c:0:2 |
| NS | 4 | d.ns.facebook.com, b.ns.facebook.com... |
| TXT | 2 | v=spf1 a ~all, 22b103463bc04b33a12a381dc3dea8da |
| HTTPS | 2 | {"priority":2,"target":"star.fallback.c1, {"priority":1,"target":".","alpn":["h2", |
| SOA | 1 | a.ns.facebook.com dns.facebook.com |
Analysis
IP Addresses
techprep.org has two IP addresses: 31.13.66.4 and 2a03:2880:f003:c07:face:b00c:0:2
Among the host names that share IP numbers with techprep.org are facebookhome.fm, facebbokk.de, fbhome.cn and two others.
Name Servers
The domain techprep.org is delegated to these four name servers: a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com and d.ns.facebook.com.
There is at least partial name server overlap between techprep.org and other domains — facebook.lgbt, instalooker.com, facebookapi.com and two more among them.
All four hostnames — a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com and d.ns.facebook.com — resolve to two IP numbers apiece: a.ns.facebook.com to 129.134.30.12 and 2a03:2880:f0fc:c:face:b00c:0:35; b.ns.facebook.com to 129.134.31.12 and 2a03:2880:f0fd:c:face:b00c:0:35; c.ns.facebook.com to 185.89.218.12 and 2a03:2880:f1fc:c:face:b00c:0:35; d.ns.facebook.com to 185.89.219.12 and 2a03:2880:f1fd:c:face:b00c:0:35.