DNS Report: blackboard.com

Generated: 2026-08-09T17:43:41-05:00

81/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/204 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
OKDNSSEC chain15/15DS and DNSKEY detected.
OKCAA policy5/5Certificate 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 certificate55/5560 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers8/352 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
20.85.72.68
AAAA
CNAME
MX
10 blackboard-com.mail.protection.outlook.com.
TXT
"atlassian-domain-verification=sL0SeJrvzBUml3o/s27o80sReunbCTKElGcidHph2tiTaZ0nMg7YECa/wuQooaq/"
"rightscale-4938059c848a09deb829"
"google-site-verification=fTocuU2OdTBoe0z0NgNx_LFAThArXIONtFHyO--shKk"
"mixpanel-domain-verify=92235a82-8728-4950-9851-57c4eecd4342"
"wiz-domain-verification=f2232774b0adf1fc08b8c0f3fd5cb5f261d73c37f381e65ec1d6b4c26b9b6a0b"
"google-site-verification=h4SDO4a-PJNaavz2JFzCHiOqtvcVJG-r2SSOSwVnZcw"
"MS=ms40613892"
"v=spf1 include:_netblocks.blackboard.com include:mh.blackboard.com include:spf.protection.outlook.com include:eskerondemand.com include:49675397.spf08.hubspotemail.net include:_spf.salesforce.com include:service-now.com -all"
"pfXrSz+R3xXW/7frt70I2B9I5Ji3XNr+ndfiptWw0SwRIwJT1lzgMyka1en34swjl1jIwlBlvCnBBnb4zI+5bA=="
"docu-45723426-bedd-41e0-a6f0-664931fc3806"
"ca3-48cd68e33ded47618c454c158fa7dcaf"
"anthropic-domain-verification-48rh2p=nzud9NjNPq281qzpTWE5ucyiZ"
NS
ns-337.awsdns-42.com.
ns-719.awsdns-25.net.
ns-1321.awsdns-37.org.
ns-1824.awsdns-36.co.uk.
SOA
ns-719.awsdns-25.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
CAA
128 issuewild "amazon.com"
128 issuewild "digicert.com"
128 issue "pki.goog"
128 iodef "mailto:dnstech@blackboard.com"
128 issue "sectigo.com"
128 issue "amazon.com"
128 issue "digicert.com"
128 issue "letsencrypt.org"
128 issuewild "sectigo.com"
DS
48240 13 2 A3A017ADFEAB57E6010D12ABAE5B0F6DAC374BEC7060C10A9B154CA3 70A4601B
DNSKEY
257 3 13 N8I/6i6TKAUvylZrMFRbYFXrqjBuAiYklpFxVm4T8OBNp9xKDgBeKq9O 8Ol/XtyZG0BLbJi91fc06qdetyPh+A==
256 3 13 1QydKMO/lDUDmMEc+OPZsh1dD/0/nDXsUDTkDXKEBy3Z7PDbIIH2KIcq ZGovWg/M/iP33b3DK31+5hOpHw55hQ==
256 3 13 DO186YJRu5Hc7yS1HipnxRAduYJDJQW0ujtjyv3JFinxhYejGPSFJQoC VjGTPOhwr11IV/NJctw6jER51V8kDQ==
RRSIG
NS 13 2 172800 20260811234330 20260809214330 52461 blackboard.com. jsWlhJd/4OkshmfV3/T4JXD98YSe4rh8QwCdX9dbhccrfnesCcIy+69p ZnuRddd7IOIOpk//9VxcwxWMU8ws3g==
TXT 13 2 300 20260809234830 20260809214330 52461 blackboard.com. /LRTFZm72TIupMFKeby9XwHp/g2VC8D9/34b8e8pN9B9G2W00V/L0O0Q SUCG8C1xKHwhEVqgmkmtUY9ABE263Q==
DS 13 2 86400 20260813030450 20260806015450 41446 com. L7+GigDKbhTUlEQw5Y38IELdixTrLzbFtbC+zkUMbrJRjtQUVYuoKEx/ ySYziPK1k86Ip6KnhXqZc+9cimI08w==
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP