{
    "ok": true,
    "domain": "tumblr.com",
    "generated_at": "2026-08-08T17:04:26-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 82,
        "label": "Good",
        "categories": {
            "dns": 75,
            "mail": 90,
            "security": 81,
            "network": 50,
            "availability": 100
        },
        "category_weights": {
            "dns": 25,
            "mail": 20,
            "security": 25,
            "network": 10,
            "availability": 20
        },
        "items": [
            {
                "category": "dns",
                "title": "IPv4 (A)",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "1 IPv4 address(es) detected."
            },
            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10,
                "detail": "0 IPv6 address(es) detected."
            },
            {
                "category": "dns",
                "title": "Name server redundancy",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "4 NS record(s); 2 or more required."
            },
            {
                "category": "dns",
                "title": "SOA record",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Authoritative zone record."
            },
            {
                "category": "dns",
                "title": "DNSSEC chain",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15,
                "detail": "Both DS and DNSKEY are required."
            },
            {
                "category": "dns",
                "title": "CAA policy",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0,
                "detail": "Certificate authority restriction."
            },
            {
                "category": "dns",
                "title": "DNS propagation",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "5 MX record(s)."
            },
            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "SPF policy published."
            },
            {
                "category": "mail",
                "title": "DMARC",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "DMARC policy published."
            },
            {
                "category": "mail",
                "title": "DKIM",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "A DKIM selector was verified."
            },
            {
                "category": "mail",
                "title": "MTA-STS",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5,
                "detail": "Mail transport policy."
            },
            {
                "category": "mail",
                "title": "TLS-RPT",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0,
                "detail": "59 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Full points require at least 30 days remaining."
            },
            {
                "category": "security",
                "title": "HTTP security headers",
                "max_points": 35,
                "earned_points": 16,
                "lost_points": 19,
                "detail": "4 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: assets.tumblr.com"
            },
            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
                "earned_points": 20,
                "lost_points": 15,
                "detail": "Two or more IPv4 addresses receive full points."
            },
            {
                "category": "network",
                "title": "IPv6 connectivity",
                "max_points": 35,
                "earned_points": 0,
                "lost_points": 35,
                "detail": "AAAA availability."
            },
            {
                "category": "availability",
                "title": "DNS resolution",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "At least one address family must resolve."
            },
            {
                "category": "availability",
                "title": "HTTP response",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "HTTP/2 200 "
            },
            {
                "category": "availability",
                "title": "HTTPS final URL",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "Final URL uses HTTPS."
            }
        ],
        "methodology": "Each category is normalized to 100. The total is the weighted sum: DNS 25%, Email 20%, Security 25%, Network 10%, Availability 20%.",
        "diagnostics": [
            {
                "level": "ok",
                "title": "IPv4 (A)",
                "detail": "1 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "IPv6 (AAAA)",
                "detail": "0 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
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                "category": "dns",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SOA record",
                "detail": "Authoritative zone record.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "DNSSEC chain",
                "detail": "Both DS and DNSKEY are required.",
                "category": "dns",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15
            },
            {
                "level": "ok",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "MX records",
                "detail": "5 MX record(s).",
                "category": "mail",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SPF",
                "detail": "SPF policy published.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DMARC",
                "detail": "DMARC policy published.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DKIM",
                "detail": "A DKIM selector was verified.",
                "category": "mail",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "error",
                "title": "TLS-RPT",
                "detail": "TLS reporting policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "ok",
                "title": "Valid TLS certificate",
                "detail": "59 day(s) remaining.",
                "category": "security",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Certificate lifetime",
                "detail": "Full points require at least 30 days remaining.",
                "category": "security",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "warning",
                "title": "HTTP security headers",
                "detail": "4 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 16,
                "lost_points": 19
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: assets.tumblr.com",
                "category": "network",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "warning",
                "title": "IPv4 diversity",
                "detail": "Two or more IPv4 addresses receive full points.",
                "category": "network",
                "max_points": 35,
                "earned_points": 20,
                "lost_points": 15
            },
            {
                "level": "error",
                "title": "IPv6 connectivity",
                "detail": "AAAA availability.",
                "category": "network",
                "max_points": 35,
                "earned_points": 0,
                "lost_points": 35
            },
            {
                "level": "ok",
                "title": "DNS resolution",
                "detail": "At least one address family must resolve.",
                "category": "availability",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTP response",
                "detail": "HTTP/2 200 ",
                "category": "availability",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTPS final URL",
                "detail": "Final URL uses HTTPS.",
                "category": "availability",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            }
        ]
    },
    "dns": {
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            "A": [
                "192.0.77.40"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
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                "1 aspmx.l.google.com.",
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                "5 alt2.aspmx.l.google.com.",
                "10 aspmx3.googlemail.com."
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            "TXT": [
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                "\"dropbox-domain-verification=gsvpgz511vsp\"",
                "\"google-site-verification=juLeQVndZxEsqhKFQS09fSxOZ3d2Jx2BWZqaLXakugw\"",
                "\"896862773-6204718\"",
                "\"google-site-verification=evUIJKvsT_rKVFCun0dPbCRHgQqDz1L3f36AjHyVuL4\"",
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            ],
            "NS": [
                "ns3.tumblr.com.",
                "ns4.tumblr.com.",
                "ns2.tumblr.com.",
                "ns1.tumblr.com."
            ],
            "SOA": [
                "ns1.tumblr.com. hostmaster.tumblr.com. 2026061601 10800 3600 604800 3600"
            ],
            "CAA": [
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                "0 issue \"comodoca.com\"",
                "0 issue \"digicert.com\"",
                "0 issue \"letsencrypt.org\"",
                "0 iodef \"mailto:content-delivery+caa@tumblr.com\""
            ],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "192.0.77.40"
        ],
        "ipv6": []
    },
    "mail": {
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        "dmarc": "v=DMARC1; p=quarantine; pct=100; rua=mailto:0bqp2jnw@ag.dmarcian.com; ruf=mailto:0bqp2jnw@fr.dmarcian.com;",
        "dkim_selector": "google",
        "dkim_host": "google._domainkey.tumblr.com",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDKJlUg8PMvui+/SPK5DI6LgyUzXskaFG8X9Bib5e3PU1MURYrRpYFdrQckVpKMHELoNKbQ8/GyyZX1qdNcPpjMCqENGx+2G4VkeuvZWEHdsl0HV1oTq8GuOduZ2dRFwcQb74DiKttlQUcVvbnyO3JIl0xqHtW6E9l0brlMpBmuJwIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 5,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
        },
        "bimi": "v=BIMI1; l=https://assets.tumblr.com/images/favicons/favicon-bimi.svg; a=;",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "assets.tumblr.com",
        "propagation": {
            "consistent": true,
            "results": [
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                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                    ],
                    "time_ms": 52.18
                },
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                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
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                    "time_ms": 26.12
                },
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                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
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                    ],
                    "time_ms": 50.94
                },
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                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
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                    ],
                    "time_ms": 52.11
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
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                    ],
                    "time_ms": 65.81
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    },
    "ssl": {
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        "issuer": "Let's Encrypt",
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        "valid_from": "2026-07-09T14:44:19-05:00",
        "valid_to": "2026-10-07T14:44:18-05:00",
        "days_remaining": 59,
        "san": [
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            "tumblr.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
    "http": {
        "url": "https://www.tumblr.com/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
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            "date": "Sat, 08 Aug 2026 22:04:17 GMT",
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            "server-timing": "a8c-cdn, dc;desc=mdw, cache;desc=EXPIRED;dur=110.0",
            "strict-transport-security": "max-age=31536000; preload",
            "x-tumblr-country": "US",
            "vary": "x-ua-device, Accept-Language",
            "x-rid": "b863f0a4fd8b77bf0c4f9bb7e130fb36",
            "content-security-policy": "script-src 'self' 'unsafe-eval' 'unsafe-inline' https://www.recaptcha.net https://c0.pubmine.com https://s.pubmine.com https://criteo.com https://*.criteo.com https://criteo.net https://*.criteo.net https://*.vexowi.com https://vexowi.com https://c.amazon-adsystem.com https://*.3lift.com https://3lift.com https://z.moatads.com https://*.moatads.com https://*.smartadserver.com https://*.sascdn.com https://app.link https://securepubads.g.doubleclick.net https://*.googlesyndication.com https://www.googletagservices.com/ https://cdn.parsely.com https://a.teads.tv/analytics/tag.js https://assets.tumblr.com https://ads.pubmatic.com https://cdn.jsdelivr.net https://*.privacymanager.io https://*.rlcdn.com https://edge.atmtd.com https://scripts.atmtd.com https://cdn.id5-sync.com https://dn0qt3r0xannq.cloudfront.net https://*.aditude.io https://static.kueezrtb.com https://cdn.ampproject.org https://blackbox-api.wp.com https://open.spotify.com https://embed-cdn.spotifycdn.com https://sb.scorecardresearch.com https://assets.tumblr.com/pop/ 'nonce-OTdhMjRlY2EzZTlkNzMzNDJkZmM3ZDJjZjFiMWM1ZGQ='; report-uri /svc/cspreports; object-src 'none'; worker-src blob: 'self'; base-uri 'self'",
            "x-content-type-options": "nosniff",
            "x-xss-protection": "1; mode=block",
            "x-frame-options": "deny",
            "cache-control": "public, max-age=0, s-maxage=60, must-revalidate",
            "x-response-time": "89ms"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": true,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": false,
            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "nginx",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.tumblr.com/",
        "title": "Tumblr",
        "description": "Tumblr is the place you go to be yourself on the internet. No performance, no perfection. Just you, and the people who get it.",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "192.0.77.40": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "aspmx2.googlemail.com",
        "ports": [
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                "port": 25,
                "open": false,
                "time_ms": 1.3,
                "banner": "",
                "error": "Network is unreachable"
            },
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                "port": 465,
                "open": false,
                "time_ms": 4005.3,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4017.5,
                "banner": "",
                "error": "Connection timed out"
            }
        ]
    },
    "visitor": {
        "ip": "216.73.217.62",
        "reverse": "",
        "country": "",
        "country_code": "",
        "region": "",
        "city": "",
        "latitude": null,
        "longitude": null,
        "isp": "",
        "organization": "",
        "asn": "",
        "timezone": "",
        "browser": "Other",
        "os": "Other",
        "language": "",
        "user_agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)",
        "is_bot": true,
        "cloudflare": false
    },
    "analysis_time_ms": 94.57
}