`workplaceusecases.com`

DNSSEC	⚠️ Not signed
A	2a03:2880:f012:1:face:b00c:0:1^{🇺🇸 Facebook2a03:2880:f012::/48 , Inc.}
		PTR	`edge-star6-shv-01-lga3.facebook.com`
A	31.13.71.1^{🇺🇸 Facebook31.13.71.0/24 , 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`
TXT	`c86fec929dd046cea7a6fad7103c7987`
HTTPS	HTTP/2, HTTP/3
HTTPS	HTTP/2, HTTP/3
SOA	`a.ns.facebook.com`dns@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.net`nstld@verisign-grs.com serial=1771291435

Same first word

workplaceusecases.com

DNS History

18 records (6 active, 12 former)

●NSa.ns.facebook.com2026-02-23 → 2026-03-22 · 3 obs

○ 2018-05-09 19:02:06
● 2026-02-23 17:51:12
● 2026-03-22 14:20:54

●NSb.ns.facebook.com2026-02-23 → 2026-03-22 · 3 obs

○ 2018-05-09 19:02:06
● 2026-02-23 17:51:12
● 2026-03-22 14:20:54

●NSc.ns.facebook.com2026-02-23 → 2026-03-22 · 3 obs

○ 2018-05-09 19:02:06
● 2026-02-23 17:51:12
● 2026-03-22 14:20:54

●NSd.ns.facebook.com2026-02-23 → 2026-03-22 · 3 obs

○ 2018-05-09 19:02:06
● 2026-02-23 17:51:12
● 2026-03-22 14:20:54

○NSns1.wordpress.com2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 19:02:06
○ 2026-02-23 17:51:12
○ 2026-03-22 14:20:54

○NSns2.wordpress.com2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 19:02:06
○ 2026-02-23 17:51:12
○ 2026-03-22 14:20:54

○NSns3.wordpress.com2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 19:02:06
○ 2026-02-23 17:51:12
○ 2026-03-22 14:20:54

○A157.240.214.12026-02-25 → 2026-03-18 · 19 obs

○ 2026-02-25 04:54:16
● 2026-02-25 05:56:04
● 2026-02-25 08:34:26
○ 2026-02-26 18:28:48
○ 2026-03-02 22:12:32
● 2026-03-04 05:36:44
● 2026-03-04 11:44:24
○ 2026-03-04 19:30:14
○ 2026-03-09 21:04:24
● 2026-03-11 07:34:16
○ 2026-03-11 16:17:34
○ 2026-03-11 20:33:08
● 2026-03-12 07:03:24
● 2026-03-12 15:53:44
○ 2026-03-12 20:22:22
○ 2026-03-17 01:15:06
● 2026-03-18 10:58:30
○ 2026-03-19 23:17:18
○ 2026-03-22 14:20:54

○A163.70.151.232026-03-02 → 2026-03-20 · 23 obs

○ 2026-03-02 19:49:34
● 2026-03-02 22:12:32
○ 2026-03-04 05:36:44
○ 2026-03-04 22:17:04
● 2026-03-04 23:05:02
○ 2026-03-04 23:41:02
○ 2026-03-08 21:15:20
● 2026-03-09 20:01:12
● 2026-03-09 21:04:24
○ 2026-03-11 07:34:16
○ 2026-03-12 20:22:22
● 2026-03-12 21:51:18
● 2026-03-13 11:21:32
○ 2026-03-13 16:34:04
○ 2026-03-13 21:26:06
● 2026-03-14 04:53:10
● 2026-03-15 21:41:06
○ 2026-03-16 09:35:42
● 2026-03-17 01:15:06
○ 2026-03-18 10:58:30
● 2026-03-19 23:17:18
● 2026-03-20 23:08:42
○ 2026-03-22 14:20:54

○A209.15.20.2132018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 19:02:06
○ 2026-02-23 17:51:12
○ 2026-03-22 14:20:54

○A2a03:2880:f003:c07:face:b00c:0:22026-02-23 → 2026-03-16 · 33 obs

○ 2026-02-23 17:51:12
● 2026-02-23 18:52:32
● 2026-02-25 04:54:16
○ 2026-02-25 05:56:04
○ 2026-02-25 08:34:26
● 2026-02-26 18:28:48
● 2026-02-26 22:38:42
○ 2026-02-27 05:12:06
○ 2026-02-28 16:24:50
● 2026-02-28 18:45:16
● 2026-03-02 19:49:34
○ 2026-03-02 22:12:32
○ 2026-03-04 19:30:14
● 2026-03-04 22:17:04
○ 2026-03-04 23:05:02
● 2026-03-04 23:41:02
● 2026-03-08 21:15:20
○ 2026-03-09 20:01:12
○ 2026-03-11 07:34:16
● 2026-03-11 16:17:34
● 2026-03-11 20:33:08
○ 2026-03-12 07:03:24
○ 2026-03-12 15:53:44
● 2026-03-12 20:22:22
○ 2026-03-12 21:51:18
○ 2026-03-13 11:21:32
● 2026-03-13 16:34:04
● 2026-03-13 21:26:06
○ 2026-03-14 04:53:10
○ 2026-03-15 21:41:06
● 2026-03-16 09:35:42
○ 2026-03-17 01:15:06
○ 2026-03-22 14:20:54

●A2a03:2880:f012:1:face:b00c:0:12026-02-27 → 2026-03-22 · 9 obs

○ 2026-02-26 22:38:42
● 2026-02-27 05:12:06
● 2026-02-28 16:24:50
○ 2026-02-28 18:45:16
○ 2026-03-04 11:44:24
● 2026-03-04 19:30:14
○ 2026-03-04 22:17:04
○ 2026-03-20 23:08:42
● 2026-03-22 14:20:54

○A2a03:2880:f058:100:face:b00c:0:22026-02-25 → 2026-03-18 · 19 obs

○A2a03:2880:f0a5:118:face:b00c:0:22026-03-02 → 2026-03-20 · 23 obs

○A2a03:2880:f380:8d:face:b00c:0:22026-02-23 → 2026-02-23 · 4 obs

○ 2018-05-09 19:02:06
● 2026-02-23 17:51:12
○ 2026-02-23 18:52:32
○ 2026-03-22 14:20:54

○A31.13.66.42026-02-23 → 2026-03-16 · 33 obs

●A31.13.71.12026-02-27 → 2026-03-22 · 9 obs

○A57.145.0.1412026-02-23 → 2026-02-23 · 4 obs

○ 2018-05-09 19:02:06
● 2026-02-23 17:51:12
○ 2026-02-23 18:52:32
○ 2026-03-22 14:20:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
workplaceusecases.com	a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com	8 records

✅ Authoritative Response

Server: 185.89.218.12

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 workplaceusecases.com (unsigned zone)

⏱️ Timing

Total: 314ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`31.13.71.1`
AAAA	1	`2a03:2880:f012:1:face:b00c:0:1`
NS	4	`a.ns.facebook.com, c.ns.facebook.com...`
TXT	2	`v=spf1 a ~all, c86fec929dd046cea7a6fad7103c7987`
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

workplaceusecases.com points to two IP numbers: 2a03:2880:f012:1:face:b00c:0:1 and 31.13.71.1.

Other host names such as edge-star6-shv-01-lga3.facebook.com, edge-star-shv-01-lga3.facebook.com, i.org, star.c10r.facebook.com and facebok.pl share IP numbers with workplaceusecases.com.

Name Servers

workplaceusecases.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 workplaceusecases.com are shared with other domains, for instance facebookforum.com, flowtype.net, 179.63.69.in-addr.arpa, registrarsec.com and tfbnet.net.

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

workplaceusecases.com - robtex.com