DNS Report: esbooks.co.jp

Generated: 2026-08-11T04:09:16-05:00

68/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/205 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.
ERRORDMARC0/25DMARC policy not found.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/5582 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
ERRORHTTP security headers0/350 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: sv16642.xserver.jp
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
85.131.213.23
AAAA
CNAME
MX
0 esbooks.co.jp.
TXT
"v=spf1 +a:sv16642.xserver.jp +a:esbooks.co.jp +mx include:spf.sender.xserver.jp ~all"
NS
ns4.xserver.jp.
ns5.xserver.jp.
ns2.xserver.jp.
ns3.xserver.jp.
ns1.xserver.jp.
SOA
ns1.xserver.jp. root.xserver.jp. 0 10800 3600 604800 3600
CAA
DS
DNSKEY
RRSIG
;; communications error to 69.64.44.20#53: timed out
;; communications error to 69.64.44.50#53: timed out
; <<>> DiG 9.18.39-0ubuntu0.22.04.4-Ubuntu <<>> esbooks.co.jp RRSIG +short +time=1 +tries=1
;; global options: +cmd
;; no servers could be reached
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP