techprep.fb.com - dns.ninja

`techprep.fb.com`

CNAME	`star.c10r.facebook.com`
DNSSEC	⚠️ Not signed
A	2a03:2880:f356:8d:face:b00c:0:2^{🇺🇸 Facebook2a03:2880:f356::/48 , Inc.}
		PTR	`edge-star6-shv-01-det1.facebook.com`
A	57.144.172.141^{🇮🇪 Facebook57.144.172.0/23 , Inc.}
MX	`smtpin.vvv.facebook.com` ⭐
		A	2a03:2880:18ff:fffc:face:b00c:0:686e^{🇺🇸 Facebook2a03:2880:1000::/36 , Inc.}
			PTR	`msgin-regional6-shv-01-rsnb0.facebook.com`
		A	173.252.82.250^{🇺🇸 Facebook173.252.64.0/19 facebook, inc.}
			PTR	`msgin-regional-shv-01-rsnb0.facebook.com`
TXT	`v=spf1 a ~all`
HTTPS	HTTP/2, HTTP/3
HTTPS	HTTP/2, HTTP/3

`fb.com`

	DNSSEC	⚠️ Not signed
	A	2a03:2880:f103:83:face:b00c:0:25de^{🇺🇸 Facebook2a03:2880:f103::/48 , Inc.}
	A	31.13.66.35^{🇺🇸 Facebook31.13.66.0/24 , Inc.}
	NS	`a.ns.facebook.com` ⭐
	NS	`b.ns.facebook.com`
	NS	`c.ns.facebook.com`
	NS	`d.ns.facebook.com`
	MX	`mxa-00082601.gslb.pphosted.com` ⭐
	MX	`mxb-00082601.gslb.pphosted.com` ⭐
	TXT	`parkable-domain-verification=N89SxXel0S4pUXDFVpckFmXIO9MUvN4Or0bO_Lcb8Os=`
	TXT	`MS=ms56927146`
	TXT	`I2B7AuxY6G1G_NeiaHF-9A0zn-3NDBnlOBi4zItNCU8`
	TXT	`smartsheet-site-validation=sB5xgx-1nsnQCgORYUhnyDG3Jr739OxJ`
	TXT	`google-site-verification=Dsycvk_Ky3uQjdvuPrI_Z6A98lWghNTntdS4LuATOj8`
	TXT	`smartsheet-site-validation=r-TtxwzdAh2KN_Zi6mTLGu02fz-9vQU4`
	TXT	`docusign=ad7f789d-eff1-4283-9d90-fdc9484527e1`
	TXT	`v=spf1 redirect=_spf.fb.com`
	TXT	`586957ce-d11e-4efa-9fe5-a887498bf838`
	TXT	`atlassian-domain-verification=I7HLjLnlhJiDT58wzrru2Pd/2cRWa3AKlgCjDPOO43GMP7H...`
	TXT	`G3X1k1XGYGra1nUpTv7Rdk2wAEFHfkKIr9/4/6+Nu67Ks9cR8xaiqAZPPhis9lGD6mb/+9vygIr4Q...`
	TXT	`mentimeter-16bdc82d-93be-47de-a6d4-fd6adb17c403`
	TXT	`mentimeter-8599dcd1-e0da-4326-882e-7570e7c942fb`
	HTTPS	HTTP/2, HTTP/3
	HTTPS	HTTP/2, HTTP/3
	SOA	`a.ns.facebook.com`dns@facebook.com serial=4207849484

WOT: SAFE (85/100)
rank #311 globally
rank #194 in the tld

fb.com

fb.comis a short-URL alias owned and operated by Meta Platforms, Inc. (formerly Facebook, Inc.); it redirects tofacebook.comand is used to produce compact shareable links for Facebook content.

Key facts

Owner / operator: Meta Platforms, Inc.
TLD:.com— gTLD
Primary purpose: Short URL alias / redirect tofacebook.com
Status: Active — redirects tofacebook.com

Related domains

facebook.com— canonical primary domain;fb.comis its short alias
meta.com— corporate umbrella domain for Meta Platforms
instagram.com,whatsapp.com— other Meta-owned properties

Semrush Rank:#3,442 Keywords:92,842 Traffic:734,007/mo
WOT: SAFE (85/100)
📈 Tranco rank: #666

Overview

fb.com is a premium short domain owned by Meta Platforms, Inc. (formerly Facebook, Inc.). The domain serves as a redirect and shortlink service for Facebook, the world's largest social networking platform. Meta acquired this two-letter domain to complement its main facebook.com domain, providing a concise URL for branding and link-sharing purposes.

About Meta

Meta was founded in 2004 by Mark Zuckerberg and fellow Harvard students. Originally named Facebook, the company rebranded to Meta in October 2021 to reflect its expanded focus beyond social media into virtual and augmented reality. Meta's mission is to "build the future of human connection and the technology that makes it possible."

Key Products & Services

Facebook — The original social network with billions of users
Instagram — Photo and video sharing platform
WhatsApp — Global messaging application
Messenger — Facebook's messaging service
Meta Quest — Virtual reality hardware and platform

The company operates on an advertising-based business model, offering its services free to users.

Technical Infrastructure

fb.com is hosted entirely on Meta's own infrastructure:

IPv4: 57.144.220.1 (Ireland)
IPv6: 2a03:2880:f36e:1:face:b00c:0:25de (notable "face:b00c" pattern)
Nameservers: a/b/c/d.ns.facebook.com (self-hosted authoritative DNS)
Mail: Handled by Proofpoint (mxa/mxb-00082601.gslb.pphosted.com)
Protocols: Supports HTTP/2 and HTTP/3

The domain hosts 50+ subdomains including api, www, workplace, and mail. DNSSEC is not enabled on this domain.

Same first word

techprep.com

techprep.net

techprep.app

techprep.org

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

2 records (1 active, 1 former)

○CNAMEfbtechprep.wordpress.com2017-11-15 → 2017-11-15 · 3 obs

● 2017-11-15 08:25:18
○ 2026-06-26 09:28:38
○ 2026-07-23 10:00:28

●CNAMEstar.c10r.facebook.com2026-06-26 → 2026-07-23 · 3 obs

○ 2017-11-15 08:25:18
● 2026-06-26 09:28:38
● 2026-07-23 10:00:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
fb.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 fb.com (unsigned zone)

⏱️ Timing

Total: 148ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`star.c10r.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

techprep.fb.com directs to two IP numbers, 57.144.172.141 and 2a03:2880:f356:8d:face:b00c:0:2

instagram.com.ly, facebook.it, fescebook.com plus two other host names have IP numbers in common with techprep.fb.com.

Mail Servers

techprep.fb.com uses one mail server — smtpin.vvv.facebook.com.

The mail server setup of techprep.fb.com matches that of other domains such as fb.facebookmail.com, campus.facebook.com, work.facebook.com and two others.

smtpin.vvv.facebook.com points to two IP addresses: 173.252.82.250 and 2a03:2880:18ff:fffc:face:b00c:0:686e.