`build.secure.facebook.com`

CNAME	`secure.c10r.facebook.com`
DNSSEC	⚠️ Not signed
A	2a03:2880:f003:c1b:face:b00c:0:2b80^{🇺🇸 Facebook2a03:2880:f003::/48 , Inc.}
		PTR	`edge-secure6-shv-01-iad3.facebook.com`
A	31.13.66.1^{🇺🇸 Facebook31.13.66.0/24 , Inc.}
TXT	`v=spf1 a ~all`
HTTPS	HTTP/2, HTTP/3
HTTPS	HTTP/2, HTTP/3

`secure.facebook.com`

	CNAME	`secure.c10r.facebook.com`
	DNSSEC	⚠️ Not signed
	A	2a03:2880:f003:c1b:face:b00c:0:2b80^{🇺🇸 Facebook2a03:2880:f003::/48 , Inc.}
	A	31.13.66.1^{🇺🇸 Facebook31.13.66.0/24 , Inc.}
	TXT	`v=spf1 a ~all`
	HTTPS	HTTP/2, HTTP/3
	HTTPS	HTTP/2, HTTP/3

WOT: SAFE (93/100)
🔒 HSTS Preload (+subdomains)
WOT: SAFE (93/100)

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DNS History

13 records (1 active, 12 former)

○A179.60.192.172017-04-30 → 2017-04-30 · 4 obs

○ 2017-04-15 15:26:30
● 2017-04-30 17:27:34
○ 2017-08-08 16:42:32
○ 2026-07-10 21:54:04

○A2a03:2880:f001:1a:face:b00c:0:2b802017-04-30 → 2017-04-30 · 4 obs

○ 2017-04-15 15:26:30
● 2017-04-30 17:27:34
○ 2017-08-08 16:42:32
○ 2026-07-10 21:54:04

○A2a03:2880:f003:c1b:face:b00c:0:2b802017-04-15 → 2017-04-30 · 5 obs

○ 2017-04-08 03:25:30
● 2017-04-15 15:26:30
● 2017-04-30 17:27:34
○ 2017-08-08 16:42:32
○ 2026-07-10 21:54:04

○A2a03:2880:f012:1a:face:b00c:0:2b802017-04-30 → 2017-04-30 · 4 obs

○ 2017-04-15 15:26:30
● 2017-04-30 17:27:34
○ 2017-08-08 16:42:32
○ 2026-07-10 21:54:04

○A2a03:2880:f01f:1a:face:b00c:0:2b802017-04-30 → 2017-04-30 · 4 obs

○ 2017-04-15 15:26:30
● 2017-04-30 17:27:34
○ 2017-08-08 16:42:32
○ 2026-07-10 21:54:04

○A2a03:2880:f022:1a:face:b00c:0:2b802017-04-30 → 2017-04-30 · 4 obs

○ 2017-04-15 15:26:30
● 2017-04-30 17:27:34
○ 2017-08-08 16:42:32
○ 2026-07-10 21:54:04

○A2a03:2880:f027:f:face:b00c:0:2b802017-04-08 → 2017-04-08 · 3 obs

● 2017-04-08 03:25:30
○ 2017-04-15 15:26:30
○ 2026-07-10 21:54:04

○A31.13.66.172017-04-08 → 2017-04-08 · 3 obs

● 2017-04-08 03:25:30
○ 2017-04-15 15:26:30
○ 2026-07-10 21:54:04

○A31.13.69.2072017-04-30 → 2017-04-30 · 4 obs

○ 2017-04-15 15:26:30
● 2017-04-30 17:27:34
○ 2017-08-08 16:42:32
○ 2026-07-10 21:54:04

○A31.13.73.172017-04-15 → 2017-04-15 · 4 obs

○ 2017-04-08 03:25:30
● 2017-04-15 15:26:30
○ 2017-04-30 17:27:34
○ 2026-07-10 21:54:04

○A31.13.76.1122017-04-30 → 2017-04-30 · 4 obs

○ 2017-04-15 15:26:30
● 2017-04-30 17:27:34
○ 2017-08-08 16:42:32
○ 2026-07-10 21:54:04

○A31.13.77.172017-04-30 → 2017-04-30 · 4 obs

○ 2017-04-15 15:26:30
● 2017-04-30 17:27:34
○ 2017-08-08 16:42:32
○ 2026-07-10 21:54:04

●CNAMEsecure.c10r.facebook.com2017-04-08 → 2026-07-10 · 2 obs

● 2017-04-08 03:25:30
● 2026-07-10 21:54:04

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:129.134.30.12

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 facebook.com (unsigned zone)

⏱️ Timing

Total: 1362ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`secure.c10r.facebook.com`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a.ns.facebook.com, a.ns.facebook.com, b.ns.facebook.com...)

Analysis

IP Addresses

build.secure.facebook.com has two IP addresses: 31.13.66.1 and 2a03:2880:f003:c1b:face:b00c:0:2b80

Host names such as edge-secure-shv-01-iad3.facebook.com, edge-secure6-shv-01-iad3.facebook.com and secure.c10r.facebook.com share their IP numbers with build.secure.facebook.com.

build.secure.facebook.com - robtex.com