DNS Report: harpercollins.com

Generated: 2026-08-09T00:54:51-05:00

78/100

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 records20/202 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 certificate55/55119 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
OKHTTP security headers35/359 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: myshopify.com
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
ERRORHTTP response0/40HTTP/2 403
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
23.227.38.65
AAAA
CNAME
MX
5 mxa-00596a01.gslb.pphosted.com.
5 mxb-00596a01.gslb.pphosted.com.
TXT
"nmmBU9m0JKlQMzYMFSA/7LacnfwY0LsGTpiMcOsFM0jILtamuI3jvV2g3+O7KKOWO4rFfGHDmZWIO4IRD+zdlg=="
"google-site-verification=nmk1hXTEYrIjhNQa3heeK1KiHKtzpXxB1jDCZP7e8o0"
"ahrefs-site-verification_73874523a8c99a90479647cc3a4099da8bdd565a9b576542cdf75182e5b3096e"
"adobe-sign-verification=f95381908feb7fd54d511615905bee51"
"shopify-verification-code=nZBi4zupnooVrmOOmRl9un6F5ZYuq9"
"yahoo-verification-key=i+M9oi9b5+XYPU48wdxWhYtTSJpnVouSnI3IUqZq88I="
"atlassian-domain-verification=uNoIhBXurxzVlQa0FvK2t9Yld5byfvXbFRQaMToGvrieKjBdylMs8jcSXRKQKqao"
"dropbox-domain-verification=ucbh5javnke3"
"bugcrowd-verification=a5b82af72ff73e6f057526a8c6946c80"
"srjf85faf1ivlj2abkt967tdfd"
"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all"
"adobe-idp-site-verification=42f51b67c9248bf4af00579848be3b6b4165111f7e95fa138083c369ab1e127f"
"asv=6bcb95b6501de3efbcb4bba9870aa071"
"google-site-verification=mrNi0RTTBHQ_NPHcDoUYnii2GYVeN8gg0XIYRMJmoU0"
"_globalsign-domain-verification=bkER3fxZbQLIEl16wZS08EnQpoEG9UQBKihu8Ks2Zd"
"figma-domain-verification=950abdf37a7ff2b00c3954b0b7c5b529439c5bc172d9955316215e3348f14054-1720572824"
"extensis-domain-verification=fb808a86-2bd8-4609-b6da-ee938a0b5625"
"dbc36a8f57004cec8e50382190a4c767"
"doordash-verification=N8fQ7KYWS5swsnXabGRKOjeGIighbm"
"openai-domain-verification=dv-0nFS3ectycyfVyRNeTWKRZz3"
"google-site-verification=tyaXIKYYcxrtquGnQyTPzzqgJzO-f3JTYTofj1Pzg8c"
"cloudflare_dashboard_sso=5d65aa637de4efe2343d17d588a34dea"
"ca3-55817d6452e54bb686ad84dded8965e2"
"webexdomainverification.4C675B8AE253B136E053AB06FC0A3F65=af0d073d-91d2-47fb-afa5-c35672c317c2"
"docusign=725b7e74-15db-4d54-ac76-889b6f206549"
"docker-verification=dfcc680b-f409-45d1-b9a7-7992e21b9a52"
"ValidationTokenValue=90fe4eb0-f1cb-4e32-a847-dc0e99fd6213"
"/eU+eq5f7XbZNa8X8rWAWZCAxYOy7z4IYhIT2Hp05EahhGMbex3/zdcOQDwWN6QGJr6ECqI6hdg1TqprNfJiYg=="
"google-site-verification=jBGiywYAcKUeCPqNZsGSvr_C6RMCPh0Z9g73o-1sBVI"
"figma-domain-verification=2f62cdb936c6fe21e979b91c99c54d82fb999e849a36aa4b2c5d05e3f7ffad82-1771355140"
"knowbe4-site-verification=0694ce74005828dc4bb8b7299bfb6f61"
"gc-ai-domain-verification-ctbrt8=XloEYpi5FPEXK53iCdLQtkSRU"
"ZOOM_verify_c8YbePuKRTOlYTGf_XKe2Q"
NS
dbru.br.ns.els-gms.att.net.
dmtu.mt.ns.els-gms.att.net.
SOA
dbru.br.ns.els-gms.att.net. rm-hostmaster.ems.att.com. 630 21600 3600 1728000 21600
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP