devcguides.com - robtex.com
devcguides.com
| 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. | ||||||
| PTR | a.ns.facebook.com | ||||||
| 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. | ||||||
| PTR | b.ns.facebook.com | ||||||
| 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 | ||||||
| PTR | c.ns.facebook.com | ||||||
| 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 | ||||||
| PTR | d.ns.facebook.com | ||||||
| TXT | v=spf1 a ~all | ||||||
| HTTPS | HTTP/2, HTTP/3 | ||||||
| HTTPS | HTTP/2, HTTP/3 | ||||||
| SOA | a.ns.facebook.comdns@facebook.com serial=4207849484 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
Same first word
devcguides.com |
DNS History
15 records (6 active, 9 former)
●NSa.ns.facebook.com2017-08-08 → 2026-03-16 · 2 obs
● 2017-08-08 14:46:18
● 2026-03-16 07:47:54
● 2026-03-16 07:47:54
●NSb.ns.facebook.com2017-08-08 → 2026-03-16 · 2 obs
● 2017-08-08 14:46:18
● 2026-03-16 07:47:54
● 2026-03-16 07:47:54
●NSc.ns.facebook.com2026-03-12 → 2026-03-16 · 3 obs
○ 2017-08-08 14:46:18
● 2026-03-12 13:48:58
● 2026-03-16 07:47:54
● 2026-03-12 13:48:58
● 2026-03-16 07:47:54
●NSd.ns.facebook.com2026-03-12 → 2026-03-16 · 3 obs
○ 2017-08-08 14:46:18
● 2026-03-12 13:48:58
● 2026-03-16 07:47:54
● 2026-03-12 13:48:58
● 2026-03-16 07:47:54
○A157.240.214.12026-03-12 → 2026-03-12 · 4 obs
○ 2017-08-08 20:15:24
● 2026-03-12 13:48:58
○ 2026-03-12 16:51:42
○ 2026-03-16 07:47:54
● 2026-03-12 13:48:58
○ 2026-03-12 16:51:42
○ 2026-03-16 07:47:54
○A157.240.241.172026-03-14 → 2026-03-15 · 7 obs
○ 2026-03-14 17:28:48
● 2026-03-14 18:03:56
○ 2026-03-14 21:03:12
○ 2026-03-15 05:38:42
● 2026-03-15 12:03:08
○ 2026-03-15 13:17:44
○ 2026-03-16 07:47:54
● 2026-03-14 18:03:56
○ 2026-03-14 21:03:12
○ 2026-03-15 05:38:42
● 2026-03-15 12:03:08
○ 2026-03-15 13:17:44
○ 2026-03-16 07:47:54
○A163.70.151.232026-03-13 → 2026-03-16 · 23 obs
○ 2026-03-13 00:11:06
● 2026-03-13 03:40:12
● 2026-03-13 11:40:32
○ 2026-03-13 13:51:48
● 2026-03-13 15:29:12
○ 2026-03-13 16:34:28
○ 2026-03-13 18:57:44
● 2026-03-13 21:14:32
● 2026-03-14 07:47:04
○ 2026-03-14 12:21:24
● 2026-03-14 13:45:06
○ 2026-03-14 15:20:02
● 2026-03-14 17:28:48
○ 2026-03-14 18:03:56
○ 2026-03-14 21:03:12
● 2026-03-14 23:23:38
○ 2026-03-15 00:10:42
● 2026-03-15 00:41:24
● 2026-03-15 05:38:42
○ 2026-03-15 12:03:08
● 2026-03-15 13:17:44
● 2026-03-16 03:37:52
○ 2026-03-16 07:47:54
● 2026-03-13 03:40:12
● 2026-03-13 11:40:32
○ 2026-03-13 13:51:48
● 2026-03-13 15:29:12
○ 2026-03-13 16:34:28
○ 2026-03-13 18:57:44
● 2026-03-13 21:14:32
● 2026-03-14 07:47:04
○ 2026-03-14 12:21:24
● 2026-03-14 13:45:06
○ 2026-03-14 15:20:02
● 2026-03-14 17:28:48
○ 2026-03-14 18:03:56
○ 2026-03-14 21:03:12
● 2026-03-14 23:23:38
○ 2026-03-15 00:10:42
● 2026-03-15 00:41:24
● 2026-03-15 05:38:42
○ 2026-03-15 12:03:08
● 2026-03-15 13:17:44
● 2026-03-16 03:37:52
○ 2026-03-16 07:47:54
○A192.0.66.22017-08-08 → 2017-08-08 · 4 obs
● 2017-08-08 14:46:18
● 2017-08-08 20:15:24
○ 2026-03-12 13:48:58
○ 2026-03-16 07:47:54
● 2017-08-08 20:15:24
○ 2026-03-12 13:48:58
○ 2026-03-16 07:47:54
●A2a03:2880:f003:c07:face:b00c:0:22026-03-12 → 2026-03-16 · 19 obs
○ 2026-03-12 13:48:58
● 2026-03-12 16:51:42
○ 2026-03-12 19:56:56
● 2026-03-13 00:11:06
○ 2026-03-13 03:40:12
○ 2026-03-13 15:29:12
● 2026-03-13 16:34:28
● 2026-03-13 18:57:44
○ 2026-03-13 21:14:32
○ 2026-03-14 13:45:06
● 2026-03-14 15:20:02
○ 2026-03-14 17:28:48
○ 2026-03-14 18:03:56
● 2026-03-14 21:03:12
○ 2026-03-14 23:23:38
● 2026-03-15 00:10:42
○ 2026-03-15 00:41:24
○ 2026-03-16 03:37:52
● 2026-03-16 07:47:54
● 2026-03-12 16:51:42
○ 2026-03-12 19:56:56
● 2026-03-13 00:11:06
○ 2026-03-13 03:40:12
○ 2026-03-13 15:29:12
● 2026-03-13 16:34:28
● 2026-03-13 18:57:44
○ 2026-03-13 21:14:32
○ 2026-03-14 13:45:06
● 2026-03-14 15:20:02
○ 2026-03-14 17:28:48
○ 2026-03-14 18:03:56
● 2026-03-14 21:03:12
○ 2026-03-14 23:23:38
● 2026-03-15 00:10:42
○ 2026-03-15 00:41:24
○ 2026-03-16 03:37:52
● 2026-03-16 07:47:54
○A2a03:2880:f012:100:face:b00c:0:22026-03-14 → 2026-03-15 · 7 obs
○ 2026-03-14 17:28:48
● 2026-03-14 18:03:56
○ 2026-03-14 21:03:12
○ 2026-03-15 05:38:42
● 2026-03-15 12:03:08
○ 2026-03-15 13:17:44
○ 2026-03-16 07:47:54
● 2026-03-14 18:03:56
○ 2026-03-14 21:03:12
○ 2026-03-15 05:38:42
● 2026-03-15 12:03:08
○ 2026-03-15 13:17:44
○ 2026-03-16 07:47:54
○A2a03:2880:f058:100:face:b00c:0:22026-03-12 → 2026-03-12 · 4 obs
○ 2017-08-08 20:15:24
● 2026-03-12 13:48:58
○ 2026-03-12 16:51:42
○ 2026-03-16 07:47:54
● 2026-03-12 13:48:58
○ 2026-03-12 16:51:42
○ 2026-03-16 07:47:54
○A2a03:2880:f0a5:118:face:b00c:0:22026-03-13 → 2026-03-16 · 23 obs
○ 2026-03-13 00:11:06
● 2026-03-13 03:40:12
● 2026-03-13 11:40:32
○ 2026-03-13 13:51:48
● 2026-03-13 15:29:12
○ 2026-03-13 16:34:28
○ 2026-03-13 18:57:44
● 2026-03-13 21:14:32
● 2026-03-14 07:47:04
○ 2026-03-14 12:21:24
● 2026-03-14 13:45:06
○ 2026-03-14 15:20:02
● 2026-03-14 17:28:48
○ 2026-03-14 18:03:56
○ 2026-03-14 21:03:12
● 2026-03-14 23:23:38
○ 2026-03-15 00:10:42
● 2026-03-15 00:41:24
● 2026-03-15 05:38:42
○ 2026-03-15 12:03:08
● 2026-03-15 13:17:44
● 2026-03-16 03:37:52
○ 2026-03-16 07:47:54
● 2026-03-13 03:40:12
● 2026-03-13 11:40:32
○ 2026-03-13 13:51:48
● 2026-03-13 15:29:12
○ 2026-03-13 16:34:28
○ 2026-03-13 18:57:44
● 2026-03-13 21:14:32
● 2026-03-14 07:47:04
○ 2026-03-14 12:21:24
● 2026-03-14 13:45:06
○ 2026-03-14 15:20:02
● 2026-03-14 17:28:48
○ 2026-03-14 18:03:56
○ 2026-03-14 21:03:12
● 2026-03-14 23:23:38
○ 2026-03-15 00:10:42
● 2026-03-15 00:41:24
● 2026-03-15 05:38:42
○ 2026-03-15 12:03:08
● 2026-03-15 13:17:44
● 2026-03-16 03:37:52
○ 2026-03-16 07:47:54
○A2a03:2880:f380:8d:face:b00c:0:22026-03-12 → 2026-03-14 · 10 obs
○ 2026-03-12 16:51:42
● 2026-03-12 19:56:56
○ 2026-03-13 00:11:06
○ 2026-03-13 11:40:32
● 2026-03-13 13:51:48
○ 2026-03-13 15:29:12
○ 2026-03-14 07:47:04
● 2026-03-14 12:21:24
○ 2026-03-14 13:45:06
○ 2026-03-16 07:47:54
● 2026-03-12 19:56:56
○ 2026-03-13 00:11:06
○ 2026-03-13 11:40:32
● 2026-03-13 13:51:48
○ 2026-03-13 15:29:12
○ 2026-03-14 07:47:04
● 2026-03-14 12:21:24
○ 2026-03-14 13:45:06
○ 2026-03-16 07:47:54
●A31.13.66.42026-03-12 → 2026-03-16 · 19 obs
○ 2026-03-12 13:48:58
● 2026-03-12 16:51:42
○ 2026-03-12 19:56:56
● 2026-03-13 00:11:06
○ 2026-03-13 03:40:12
○ 2026-03-13 15:29:12
● 2026-03-13 16:34:28
● 2026-03-13 18:57:44
○ 2026-03-13 21:14:32
○ 2026-03-14 13:45:06
● 2026-03-14 15:20:02
○ 2026-03-14 17:28:48
○ 2026-03-14 18:03:56
● 2026-03-14 21:03:12
○ 2026-03-14 23:23:38
● 2026-03-15 00:10:42
○ 2026-03-15 00:41:24
○ 2026-03-16 03:37:52
● 2026-03-16 07:47:54
● 2026-03-12 16:51:42
○ 2026-03-12 19:56:56
● 2026-03-13 00:11:06
○ 2026-03-13 03:40:12
○ 2026-03-13 15:29:12
● 2026-03-13 16:34:28
● 2026-03-13 18:57:44
○ 2026-03-13 21:14:32
○ 2026-03-14 13:45:06
● 2026-03-14 15:20:02
○ 2026-03-14 17:28:48
○ 2026-03-14 18:03:56
● 2026-03-14 21:03:12
○ 2026-03-14 23:23:38
● 2026-03-15 00:10:42
○ 2026-03-15 00:41:24
○ 2026-03-16 03:37:52
● 2026-03-16 07:47:54
○A57.145.0.1412026-03-12 → 2026-03-14 · 10 obs
○ 2026-03-12 16:51:42
● 2026-03-12 19:56:56
○ 2026-03-13 00:11:06
○ 2026-03-13 11:40:32
● 2026-03-13 13:51:48
○ 2026-03-13 15:29:12
○ 2026-03-14 07:47:04
● 2026-03-14 12:21:24
○ 2026-03-14 13:45:06
○ 2026-03-16 07:47:54
● 2026-03-12 19:56:56
○ 2026-03-13 00:11:06
○ 2026-03-13 11:40:32
● 2026-03-13 13:51:48
○ 2026-03-13 15:29:12
○ 2026-03-14 07:47:04
● 2026-03-14 12:21:24
○ 2026-03-14 13:45:06
○ 2026-03-16 07:47:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| devcguides.com | a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com | 8 records |
✅ Authoritative Response
Server: 129.134.31.12
NS records: a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for devcguides.com (unsigned zone)
⏱️ Timing
Total: 427ms | 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 | 1 | v=spf1 a ~all |
| HTTPS | 2 | {"priority":1,"target":".","alpn":["h2",, {"priority":2,"target":"star.fallback.c1 |
| SOA | 1 | a.ns.facebook.com dns.facebook.com |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (a.ns.facebook.com, a.ns.facebook.com, b.ns.facebook.com...)
Analysis
IP Addresses
devcguides.com points to two IP numbers: 2a03:2880:f003:c07:face:b00c:0:2 and 31.13.66.4.
Other host names such as facebuok.com, edge-star6-shv-01-iad3.facebook.com, facedbook.com, star.c10r.facebook.com and facebook.it share IP numbers with devcguides.com.
Name Servers
devcguides.com is delegated to four name servers: a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com and d.ns.facebook.com.
At least part of the name servers for devcguides.com are shared with other domains, for instance facebookmessenger.com, internalfb.com, metavision.com, fgacebook.com and instagram.vegas.
Host names with two IP numbers:
a.ns.facebook.com points to: 2a03:2880:f0fc:c:face:b00c:0:35 and 129.134.30.12
b.ns.facebook.com points to: 2a03:2880:f0fd:c:face:b00c:0:35 and 129.134.31.12
c.ns.facebook.com points to: 2a03:2880:f1fc:c:face:b00c:0:35 and 185.89.218.12
d.ns.facebook.com points to: 2a03:2880:f1fd:c:face:b00c:0:35 and 185.89.219.12