DNS Report: ntp.org

Generated: 2026-08-08T20:12:45-05:00

85/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/302 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.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/201 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 certificate55/5585 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers4/351 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: slb0.chi1.ntfo.org
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/1.1 200 OK
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
204.93.207.22
209.148.110.246
AAAA
2001:1838:2000:41b::80:0
CNAME
MX
10 mx0.chi1.ntfo.org.
TXT
"_globalsign-domain-verification=O60kZMoa5mBPIKKqd9FSRXcGUhU6s3rzZHzWNLAlL7"
"google-site-verification=1BTIwQr05WxuBXsED2L-cWc-cC7_8NDYKoWMsmAyR3g"
"google-site-verification=ISMNEfck75SW97AiPz0acClFpICIejjA6F5ijoHccZM"
"v=spf1 a mx ip4:204.93.207.0/27 ip4:66.220.13.234 ip4:66.220.13.237 ip6:2001:470:1:205::234 ip6:2001:470:1:205::/64 ~all"
"ntp-libera-310"
NS
dns2.udel.edu.
anyns.pch.net.
dns1.udel.edu.
ns1.everett.org.
SOA
ns1.everett.org. postmaster.ntp.org. 2026073100 3600 14400 604800 3600
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP