DNS Report: computerhistory.org

Generated: 2026-08-09T03:55:02-05:00

82/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/302 IPv4 address(es) detected.
OKIPv6 (AAAA)10/102 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 certificate55/5585 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.
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
104.21.17.220
172.67.178.154
AAAA
2606:4700:3030::6815:11dc
2606:4700:3035::ac43:b29a
CNAME
MX
0 computerhistory-org.mail.protection.outlook.com.
TXT
"gJPngtlEoee5tmwh7SsQYLjyX5sIac7gbdszvgbHPluMG1oiUo8PIlF0NqxwNAHCjePqMKlQQgd2pg++4MOX+g=="
"1JPhzj9k7fEHgtsngDZNS6yfV03c0x5VyuvqC4odAJkWfpEFvI9mD72+vQiSbKOtDMvUyMNqklKmOw+OSnnOGA=="
"_globalsign-domain-verification=w4J1QxPn3aNctgVGzY51pbeSFxpzwNCjLN4HV-i699"
"_globalsign-domain-verification=a0QaafMZgRS0DbVMw3XLx2rdUg41VfP9I_fBBuSk-m"
"apple-domain-verification=zj49fL4xByFmwuNN"
"MS=ms12064115"
"docusign=5c1c9cad-846f-41c0-9049-a0cbe3169cfb"
"nfM5CrwvDFasS6IfAOTkTvjNzm7gYjif2NEd49JW97+JBXBTD0dGmQDeyu/RnpXC76UvmzlMQm8KbMAN1MTHvg=="
"rm_verify=b4106fa28e"
"google-site-verification=p5tnnWmagFi2txnFJKyqJhSWZaKddUMCc6sKK-zCX5M"
"v=spf1 include:spf.protection.outlook.com include:_spf-internal.computerhistory.org include:_spf.salesforce.com include:spf.ticketure.com -all"
"slack-domain-verification=MYDX90D4wV12ZdIRV5ellSI9eCayJOFjhK97IKs5"
"openai-domain-verification=dv-LxzDCWHjzW2cxVrmyRlJZ4So"
"mPvdaxG4vvybwa8VZI0J4AncjCIh3T75uHBGRwH3TSD1kU8XFwFx0yDDAbsgB7n+UZ3fAELT6dI16V6eFHSTJA=="
"MS=498D467512A4DA933158597F4042806719B8E25B"
"facebook-domain-verification=og8r6zl8mxkeszsryklveiywpkyzuq"
"lgpoa4pn3skmfbm0f4amo8fruc"
NS
mia.ns.cloudflare.com.
randy.ns.cloudflare.com.
SOA
mia.ns.cloudflare.com. dns.cloudflare.com. 2411348538 10000 2400 604800 1800
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP