DNS Report: usb.org

Generated: 2026-08-09T21:50:20-05:00

79/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/303 IPv4 address(es) detected.
OKIPv6 (AAAA)10/103 IPv6 address(es) detected.
OKName server redundancy20/202 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.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/202 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 certificate55/5544 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers8/352 of 9 evaluated headers detected.
ERRORPTR reverse DNS0/30PTR not detected.
OKIPv4 diversity35/35Two 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
104.26.2.75
172.67.71.145
104.26.3.75
AAAA
2606:4700:20::ac43:4791
2606:4700:20::681a:24b
2606:4700:20::681a:34b
CNAME
MX
20 d162523b.ess.barracudanetworks.com.
10 d162523a.ess.barracudanetworks.com.
TXT
"v=spf1 ip4:35.165.55.240 ip4:50.76.103.53 ip4:50.201.23.206 ip4:69.160.44.10 ip4:50.201.25.89 ip4:50.201.25.77 ip4:54.148.241.204 ip4:50.201.25.72 include:spf.protection.outlook.com include:_spf1.causewaynow.com ~all"
NS
serena.ns.cloudflare.com.
dave.ns.cloudflare.com.
SOA
dave.ns.cloudflare.com. dns.cloudflare.com. 2410065321 10000 2400 604800 1800
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP