{
    "ok": true,
    "domain": "citylab.com",
    "generated_at": "2026-08-09T10:35:20-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 63,
        "label": "Fair",
        "categories": {
            "dns": 75,
            "mail": 25,
            "security": 81,
            "network": 65,
            "availability": 60
        },
        "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": "2 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": "7 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": 0,
                "lost_points": 20,
                "detail": "0 MX record(s)."
            },
            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25,
                "detail": "SPF policy not found."
            },
            {
                "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": 0,
                "lost_points": 20,
                "detail": "No tested DKIM selector responded."
            },
            {
                "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": "173 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: aa2f66099ca87b6fe.awsglobalaccelerator.com"
            },
            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0,
                "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": 0,
                "lost_points": 40,
                "detail": "HTTP/2 403 "
            },
            {
                "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": "2 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",
                "detail": "7 NS record(s); 2 or more required.",
                "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": "error",
                "title": "MX records",
                "detail": "0 MX record(s).",
                "category": "mail",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20
            },
            {
                "level": "error",
                "title": "SPF",
                "detail": "SPF policy not found.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25
            },
            {
                "level": "ok",
                "title": "DMARC",
                "detail": "DMARC policy published.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "DKIM",
                "detail": "No tested DKIM selector responded.",
                "category": "mail",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20
            },
            {
                "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": "173 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: aa2f66099ca87b6fe.awsglobalaccelerator.com",
                "category": "network",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "IPv4 diversity",
                "detail": "Two or more IPv4 addresses receive full points.",
                "category": "network",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0
            },
            {
                "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": "error",
                "title": "HTTP response",
                "detail": "HTTP/2 403 ",
                "category": "availability",
                "max_points": 40,
                "earned_points": 0,
                "lost_points": 40
            },
            {
                "level": "ok",
                "title": "HTTPS final URL",
                "detail": "Final URL uses HTTPS.",
                "category": "availability",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            }
        ]
    },
    "dns": {
        "records": {
            "A": [
                "3.33.146.110",
                "15.197.146.156"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [],
            "TXT": [],
            "NS": [
                "dns4.p01.nsone.net.",
                "pdns3.ultradns.org.",
                "pdns5.ultradns.info.",
                "dns2.p01.nsone.net.",
                "pdns1.ultradns.net.",
                "dns3.p01.nsone.net.",
                "dns1.p01.nsone.net."
            ],
            "SOA": [
                "dns1.p01.nsone.net. dnsmaster.bloomberg.com. 168 3600 1800 3600000 1200"
            ],
            "CAA": [
                "0 iodef \"mailto:reportvuln@bloomberg.net\"",
                "0 issue \"digicert.com\""
            ],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "3.33.146.110",
            "15.197.146.156"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "",
        "dmarc": "v=DMARC1; p=reject; adkim=r; aspf=r; ruf=mailto:dmarc-ruf@dmarc-bloomberg.com; fo=1; rua=mailto:dmarc-rua@dmarc-bloomberg.com",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
            "valid": false,
            "lookups": 0,
            "final": "",
            "message": "Not published"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "aa2f66099ca87b6fe.awsglobalaccelerator.com",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "15.197.146.156",
                        "3.33.146.110"
                    ],
                    "time_ms": 76.86
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "15.197.146.156",
                        "3.33.146.110"
                    ],
                    "time_ms": 39.25
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "15.197.146.156",
                        "3.33.146.110"
                    ],
                    "time_ms": 45.73
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "15.197.146.156",
                        "3.33.146.110"
                    ],
                    "time_ms": 123.69
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "15.197.146.156",
                        "3.33.146.110"
                    ],
                    "time_ms": 137.93
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "DigiCert Inc",
        "subject": "wmkt4.cirrus.bloomberg.com",
        "valid_from": "2026-07-22T19:00:00-05:00",
        "valid_to": "2027-01-29T17:59:59-06:00",
        "days_remaining": 173,
        "san": [
            "wmkt4.cirrus.bloomberg.com",
            "bwayexchange.com",
            "bwayexchange.mobi",
            "bwayexchange.net",
            "bwayexchange.org",
            "carbonknowledgehub.com",
            "careers.bloomberg.com",
            "cc.bloomberg.com",
            "citylab.com",
            "climate.bloomberg.com",
            "climatechanged.com",
            "climatedatasc.org",
            "climatedatasteeringcommittee.com",
            "climatepolicyhub.com",
            "cloudtoc.com",
            "cloudtoc.net",
            "data.bloomberglp.com",
            "eatimpossible.com",
            "ee.bloomberg.com",
            "ee.btogo.com",
            "ei.bloomberg.com",
            "events.bloomberg.com",
            "events.bloomberglive.com",
            "events.blpprofessional.com",
            "findbloomberg.com",
            "findbloombergtv.com",
            "fintoc.net",
            "formbuilder.bloomberg.com",
            "formbuilder.qa.bloomberg.com",
            "fsb-tcfd.org",
            "gfanzero.com",
            "global-climatescope.org",
            "grayspan.com",
            "grayspan.net",
            "green-markets.com",
            "infiniteresearch.com",
            "intelligence.bloomberg.com",
            "intratick.com",
            "jobs.bloomberg.com",
            "jpmobile.bloomberg.com",
            "learning.bloomberggovernment.com",
            "learning.bloomberglaw.com",
            "londonmithraeum.co.uk",
            "londonmithraeum.com",
            "londonmithraeum.org",
            "middleofficesolutions.com",
            "mtest.bloomberg.com",
            "negocios.bloomberg.com",
            "net-zero-pathfinders.com",
            "net-zero-pathfinders.org",
            "netzeropathfinders.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
    "http": {
        "url": "https://www.bloomberg.com/citylab",
        "status": "HTTP/2 403 ",
        "http_version": "3",
        "headers": {
            "server": "Varnish",
            "date": "Sun, 09 Aug 2026 15:35:12 GMT",
            "content-type": "text/html",
            "content-length": "13860",
            "location": "https://www.bloomberg.com/citylab",
            "x-frame-options": "deny",
            "x-content-type-options": "nosniff",
            "strict-transport-security": "max-age=31557600",
            "content-security-policy": "default src 'self'; object src 'none'; upgrade insecure requests; frame ancestors 'self'",
            "retry-after": "0",
            "accept-ranges": "bytes",
            "set-cookie": "session_key=095eda94565b6cc4e50e0afe5cb95df95a2d7a4e; path=/; max-age=31536000; domain=bloomberg.com; secure",
            "x-served-by": "cache-stl760059-STL",
            "x-cache": "MISS",
            "x-cache-hits": "0",
            "x-fastly-version": "316",
            "link": "<https://assets.bwbx.io>; rel=preconnect; crossorigin, <https://assets.bwbx.io>; rel=preconnect, <https://sourcepointcmp.bloomberg.com>; rel=preconnect; crossorigin, <https://tpc.googlesyndication.com\t>; rel=preconnect; crossorigin, <https://www.google-analytics.com>; rel=preconnect; crossorigin, <https://www.googletagmanager.com>; rel=preconnect, <https://www.googletagmanager.com>; rel=preconnect; crossorigin"
        },
        "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": "Varnish",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.bloomberg.com/citylab",
        "title": "Bloomberg - Are you a robot?",
        "description": "",
        "success": true,
        "error": "",
        "status": 403
    },
    "network": {
        "3.33.146.110": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "15.197.146.156": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "citylab.com",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 8.1,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4004.1,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4021.1,
                "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": 110.17
}