DNS Report: masterclass.com

Generated: 2026-08-09T01:33:45-05:00

81/100

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 records20/205 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 certificate55/5559 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers31/358 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.
ERRORHTTP response0/40HTTP/2 403
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
104.17.11.109
104.17.12.109
AAAA
2606:4700::6811:b6d
2606:4700::6811:c6d
CNAME
MX
5 alt2.aspmx.l.google.com.
1 aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
10 alt3.aspmx.l.google.com.
TXT
"stripe-verification=05be685f2aa766fd02db629e200de6599f96a26ac878f011ca07f4e460ead9c5"
"stripe-verification=BAC58CD27A726CB57A22A94CF194159DC8AEC807D3C552A42D196543806C9F6C"
"00d5y000002tzbcuac"
"atlassian-domain-verification=fsLNVMHXTinbduijD9qeWWVOBbtM0ktMigExcpz84eXkqnvQWEF2UV5Mgm+w827G"
"zapier-domain-verification-challenge=157c535c-55e3-47db-afae-588cd71db34b"
"h1-domain-verification=P8nffKmUSEtYWiazMh7ywjrjwYuWCV2BNT4twJXMhygtq8aq"
"decagon-domain-verification-nc91pt=1RNcCaurtxoXZeWleNg62XUbb"
"onetrust-domain-verification=402a912e5f60472faac5ae0be70f2ac0"
"cursor-domain-verification-gcpwkw=M0JNzcmFlXXDV3hxBDtgwzC8U"
"dropbox-domain-verification=qzcecejb36yn"
"anthropic-domain-verification-09srn7=YDOqYXJCGJNNLdEfNFn4Bv2K6"
"jamf-site-verification=-EgzC23s3-FEy67wN_mmkA"
"adobe-idp-site-verification=8cecf303de49e79f3bdba851120976cc135e573af7e1415614ad70124486ff6b"
"figma-domain-verification=c03ba85be58bb787cf163df010d8a8f566914bdca30d4a8b4daa451bb0a86bb6-1774469364"
"gamma-domain-verification-5h4yh2=nNmT1WskPGUEevoEumWLfuiQQ"
"segment-site-verification=uqDqIFigNS4vDmAD8EmAGhRsRpIVpvX4"
"google-site-verification=iQxG-q_4dr0FA3Ao1DRrgLQjWqmL52fGQwUQxBEacQw"
"v=spf1 ip4:198.245.81.0/24 ip4:136.147.176.0/24 ip4:13.111.0.0/16 ip4:136.147.182.0/24 ip4:136.147.135.0/24 ip4:199.122.123.0/24 ip4:167.89.0.0/17 ip4:168.245.0.0/17 ip4:185.250.239.148 ip4:185.250.239.168 ip4:185.250.239.190 ip4:198.244.59.30 ip4:198.244" ".59.33 ip4:198.244.59.35 ip4:198.61.254.21 ip4:209.61.151.236 ip4:209.61.151.249 ip4:209.61.151.251 ip4:69.72.40.93 ip4:69.72.40.94/31 ip4:69.72.40.96/30 ip4:69.72.47.205 include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:spf.b" "raintreegateway.com include:_spf.salesforce.com ~all"
"stripe-verification=f4598fc28f5441e04a5f78cd69c1df5e2679418ccd8659c94a62348c027e345f"
"google-site-verification=ZLRIGV-xmlMAsluAM6Q0sXrYlH9i_lNOPure0L5-FRY"
"apple-domain-verification=Dwh77ggSYSJLv0sV"
"stripe-verification=a724da2600b32898d16a622d440ffe5df365aede0ea0085dac363d14e7d539fa"
"serval-domain-verification-dgcjt0=dVNwJAK7PsxoQPKJ54kzoTO8Q"
"ZOOM_verify_MPUyRtnpQ-KCjAo8dCLHtA"
"jumpdesktop=7ffc143dc6e1d1c8ce3cc46d41f514753764c58441fddc7e1745499243df"
"atlassian-domain-verification=z8jowpBlkVJiTOqh0KMVPyRiJPZS62sQS/xQk08yGwdNQZ3mxJ8FDkZmnOxts5OY"
"jetbrains-domain-verification=cmohn0y9vdknqw3qaisdk6sn7"
"openai-domain-verification=dv-GcY4FzLCwaYMyMTHJyhXx0F0"
"google-site-verification=eKv2UoTFDkYJ7Oj3zLj0cMpKYWTiIg90xNLRih9GFVQ"
"google-site-verification=HBtTedJJzGqpI0XzHnITC3kJW_kQizrx6qj-pJsBYpk"
"docusign=6a55ec11-02b4-4add-89e3-635c4c845c02"
"google-site-verification=UicQjDg7QYyoskEBnAx7DNiYZq2bNIovIdmTY8NEXkE"
"opus-clip-domain-verification-zemts8=ojPEL6WKEqGIE4oKs1MGcmXsq"
"facebook-domain-verification=vko59lt5tiv3e15nlz3fz0ndzaa48k"
"elevenlabs=uI1io7p5QnHLXBO4aIDSPbT1cilewVmgyBHbIv5yP3A"
"pardot923373=eb51071010d88eac96762e419f98e03d8428bd9cbfc2748b1286e18b33fcf0b1"
"airtable-verification=2e81434c48c7f1f5f14e32e768aac1f1"
"google-site-verification=82VH4G93yO_5Q3pQCMlhCigfy6YiJW9VB2BgLv1acNU"
"MS=ms40464053"
"segment-site-verification=G8EClOzpb9DOxF39ihbSmVtb2j6hv5vz"
"google-site-verification=n1Yz2XSiiz2Zq-fqb_3r0Vxu6nu4aJYocC-yApmymZo"
"teamviewer-sso-verification=63cefa94ee3247beb570154f96dac6f4"
NS
elmo.ns.cloudflare.com.
lara.ns.cloudflare.com.
SOA
elmo.ns.cloudflare.com. dns.cloudflare.com. 2411387166 10000 2400 604800 1800
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP