DNS Report: business.facebook.com

Generated: 2026-08-08T19:09:20-05:00

74/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
OKIPv6 (AAAA)10/101 IPv6 address(es) detected.
ERRORName server redundancy0/200 NS record(s); 2 or more required.
ERRORSOA record0/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
ERRORCAA policy0/5Certificate authority restriction.
ERRORDNS propagation0/10Agreement between public resolvers.
OKMX records20/201 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/557 day(s) remaining.
WARNINGCertificate lifetime2/10Full points require at least 30 days remaining.
WARNINGHTTP security headers27/357 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: edge-star-shv-02-ord5.facebook.com
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
OKIPv6 connectivity35/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/2 200
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
157.240.254.12
AAAA
2a03:2880:f082:10d:face:b00c:0:2
CNAME
MX
10 smtpin.vvv.facebook.com.
TXT
"v=spf1 include:_spf.facebook.com -all"
"apple-domain-verification=dNsR5xrZclUflC5UHJQ3NNJZOKbBcIMGJMvVYuw2Zb8"
NS
SOA
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP