mail2.secure.facebook.com - robtex.com

mail2.secure.facebook.com

CNAMEsecure.c10r.facebook.com
DNSSEC⚠️ Not signed
A2a03:2880:f003:c1b:face:b00c:0:2b80🇺🇸 Facebook2a03:2880:f003::/48 , Inc.
PTRedge-secure6-shv-01-iad3.facebook.com
A31.13.66.1🇺🇸 Facebook31.13.66.0/24 , Inc.
TXTv=spf1 a ~all
HTTPSHTTP/2, HTTP/3
HTTPSHTTP/2, HTTP/3

secure.facebook.com

CNAMEsecure.c10r.facebook.com
DNSSEC⚠️ Not signed
A2a03:2880:f003:c1b:face:b00c:0:2b80🇺🇸 Facebook2a03:2880:f003::/48 , Inc.
A31.13.66.1🇺🇸 Facebook31.13.66.0/24 , Inc.
TXTv=spf1 a ~all
HTTPSHTTP/2, HTTP/3
HTTPSHTTP/2, HTTP/3
WOT: SAFE (93/100)
🔒 HSTS Preload (+subdomains)
WOT: SAFE (93/100)

Same first word

Similar names

DNS History

1 record (1 active, 0 former)

CNAMEsecure.c10r.facebook.com
CNAMEsecure.c10r.facebook.com2026-07-08 → 2026-07-17 · 2 obs
● 2026-07-08 20:07:48
● 2026-07-17 02:40:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
facebook.coma.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com8 records

✅ Authoritative Response

Server:185.89.219.12

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: 184ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1secure.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

mail2.secure.facebook.com directs to two IP numbers, 31.13.66.1 and 2a03:2880:f003:c1b:face:b00c:0:2b80

Other host names — work.facebook.com, secure.c10r.facebook.com, edge-secure-shv-01-iad3.facebook.com and edge-secure6-shv-01-iad3.facebook.com — share IP numbers with mail2.secure.facebook.com.