DNS Report: fb.com

Generated: 2026-08-08T17:52:38-05:00

86/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
OKIPv6 (AAAA)10/101 IPv6 address(es) detected.
OKName server redundancy20/204 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
ERRORCAA policy0/5Certificate authority restriction.
ERRORDNS propagation0/10Agreement between public resolvers.
OKMX records20/202 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
OKDKIM20/20A DKIM selector was verified.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/558 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-mini-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
157.240.254.35
AAAA
2a03:2880:f175:181:face:b00c:0:25de
CNAME
MX
10 mxb-00082601.gslb.pphosted.com.
10 mxa-00082601.gslb.pphosted.com.
TXT
"parkable-domain-verification=N89SxXel0S4pUXDFVpckFmXIO9MUvN4Or0bO_Lcb8Os="
"mentimeter-8599dcd1-e0da-4326-882e-7570e7c942fb"
"I2B7AuxY6G1G_NeiaHF-9A0zn-3NDBnlOBi4zItNCU8"
"586957ce-d11e-4efa-9fe5-a887498bf838"
"mentimeter-16bdc82d-93be-47de-a6d4-fd6adb17c403"
"docusign=ad7f789d-eff1-4283-9d90-fdc9484527e1"
"MS=ms56927146"
"smartsheet-site-validation=r-TtxwzdAh2KN_Zi6mTLGu02fz-9vQU4"
"v=spf1 redirect=_spf.fb.com"
"google-site-verification=Dsycvk_Ky3uQjdvuPrI_Z6A98lWghNTntdS4LuATOj8"
"G3X1k1XGYGra1nUpTv7Rdk2wAEFHfkKIr9/4/6+Nu67Ks9cR8xaiqAZPPhis9lGD6mb/+9vygIr4QKXIpxIc7w=="
"atlassian-domain-verification=I7HLjLnlhJiDT58wzrru2Pd/2cRWa3AKlgCjDPOO43GMP7H0QuafH6eBts3D1GaP"
"smartsheet-site-validation=sB5xgx-1nsnQCgORYUhnyDG3Jr739OxJ"
NS
d.ns.facebook.com.
a.ns.facebook.com.
c.ns.facebook.com.
b.ns.facebook.com.
SOA
a.ns.facebook.com. dns.facebook.com. 4207849484 14400 1800 604800 3600
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP