DNS Report: stepik.org

Generated: 2026-08-10T10:31:02-05:00

75/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 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 records20/201 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 certificate55/5573 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers4/351 of 9 evaluated headers detected.
ERRORPTR reverse DNS0/30PTR not detected.
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA 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
178.248.239.111
AAAA
CNAME
MX
10 mx.yandex.net.
TXT
"google-site-verification=F1_-uKpAc4KyTYHV6Ft_QOkSrfzPgyy_cv3Vw_hc7qc"
"yandex-verification: fa6a64e3034dc7b7"
"yandex-verification: a4dbed4d96915f29"
"v=spf1 mx ip4:40.113.130.203 ip4:51.250.53.246 ip4:40.119.132.203 ip4:104.47.158.169 include:mail.zendesk.com include:servers.mcsv.net include:_spf.google.com include:_spf.myjetbrains.com include:_spf.yandex.net ~all"
"MS=ms61610138"
NS
ns78.domaincontrol.com.
ns77.domaincontrol.com.
SOA
ns77.domaincontrol.com. dns.jomax.net. 2024101601 28800 7200 604800 600
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP