{
    "ok": true,
    "domain": "sfgate.com",
    "generated_at": "2026-08-08T18:55:41-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 80,
        "label": "Good",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 69,
            "network": 65,
            "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": "4 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": "6 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": 0,
                "lost_points": 5,
                "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": "1 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": "30 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": 4,
                "lost_points": 31,
                "detail": "1 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: ec2-34-197-233-251.compute-1.amazonaws.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": 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": "4 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": "6 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": "error",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "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": "1 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": "30 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": "1 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 4,
                "lost_points": 31
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: ec2-34-197-233-251.compute-1.amazonaws.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": "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": {
        "records": {
            "A": [
                "34.197.233.251",
                "34.204.119.243",
                "34.198.86.45",
                "34.235.224.231"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "10 sfgate-com.mail.protection.outlook.com."
            ],
            "TXT": [
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                "\"yahoo-verification-key=g+WhEe4N0CrrEDRyZ1wwuE9mLEFvkYz2e0qq3oLPjHc=\"",
                "\"google-site-verification=yAIpULotH9YMiQPmbN4KeEn6F-eJX1wPsJ57vurqOd0\"",
                "\"google-site-verification=gIbCFh-MvYslYYD0cihA67zBu6kynkGrA05QPYqjlsU\"",
                "\"google-site-verification=36dbrWLhz5VLUFXySCsb9XVTTydxajQK4WZY7xZTzPg\"",
                "\"google-site-verification=cRfr3E17Tp0pgpjtWiPX1MjKaT0FqSlJRIMKM4tx-CY\"",
                "\"atlassian-domain-verification=FpL/aWW65m3p2lAjgu9uaxMnORyl2KLKjkSbpFUulvCwkkhAoyMCv0fc30dxJ7Hh\"",
                "\"v=spf1 ip4:98.129.228.67 ip4:34.239.169.101 include:spf.protection.outlook.com include:_netblocks.google.com ip4:40.121.143.48 ip4:205.220.176.159 ip4:205.220.164.154 ~all\"",
                "\"google-site-verification=9BCpCvbmNpBr1tKyNPPpDYON0uX28sqBX2Y93f3PTDY\"",
                "\"google-site-verification=s4Ck77cuaN02hprkSoPAB4mkVaPHKWHTMDoSQgfGR0A\"",
                "\"MS=ms47985603\"",
                "\"FBFlR0fdrg02SII+qegeKCtLvJESGEhjOsY0IJlgbepKR6+ByiyyTqeAXH4CZh/qQfeWnLuDTrJg4l4lLJHE5g==\"",
                "\"google-site-verification=cPLhqvYeHN7wkiLSV6Pjoa_PY6yaKR1fWW6vKPdlrsQ\"",
                "\"google-site-verification=xzugS3_GIqJIfzZ1bnQ05Rj8KqdcL57WvR_5qMgI1P4\"",
                "\"_globalsign-domain-verification=Iiihy-iv_vLdlIMtHvh-aCdqO2T53oCoknhW44njXn\"",
                "\"facebook-domain-verification=qqynxm212f5lyr5u525q554vlwn7kk\"",
                "\"google-site-verification=MhIxpkTaMNCW3TCfkC0j38khn03PtCoswQPB_DcI7qc\"",
                "\"google-site-verification=L7_nw8jNjw9qsiKf7VJo9OuzFdhTZfYNibY0d3xxun8\"",
                "\"adobe-idp-site-verification=3ebb0754e0941b0fd3e9cfe346802f5b6321a2a9bce74d7ffbcee597a1bbd8a3\"",
                "\"google-site-verification=1m5nOKgH4m5Nr2d1puoZgEp6cXnnKahXaLGLJwAwTA0\"",
                "\"google-site-verification=K8tV1DbrPFdrO7ZPariBk0n-raEK-2whiujM2STd5rU\"",
                "\"google-site-verification=cVLyuJzCwJrtt7fPi8NMCEUcWPaI720_yjTazOfL7CQ\"",
                "\"google-site-verification=Jcpz_cHqgnfl6x94Lm_joJ9J5q6EqkiMDffkIZMbrlI\"",
                "\"tollbit-domain-verification=912537cb66cea7a2430691de74df257bf291fb9fb270a9020f16bb5fee6ec2d6\"",
                "\"google-site-verification=w7_0lPEuKP1XgagexUQY1nv5W1r-WDz7Fza0qG_8Kfo\"",
                "\"cursor-domain-verification-pjkxgd=6Bn9y7uJ8Vw692k7Fno6CSwzb\"",
                "\"BSI103498586397\"",
                "\"google-site-verification=UMxOQT0gt8TERCOyRWSPP80_vMGW40-meE0Jfr8BpZM\"",
                "\"google-site-verification=3fMDP6-72ihF6y45oawiomCNZWKeQo36ocuXIvH2FSE\"",
                "\"google-site-verification=xE9mZkrxGdPtiY0MvoyWLhKLP4_4KqMvAvVdOPj9HGE\"",
                "\"google-site-verification=VLzJOl3igqWf1RlOXE0CY9J8ys4uqD2hJNSFmwEDQ3g\"",
                "\"facebook-domain-verification=faosxzy5p51wicr5ie59vp2oqhidww\"",
                "\"openai-domain-verification=dv-W45nYtCHsBlkQWvpBLfy9OiI\"",
                "\"680c5ce09e3441c69047611efe4faeb7\"",
                "\"anthropic-domain-verification-qjbz25=PFuJW5qjxIuYPpxotDHWZ6Bhq\""
            ],
            "NS": [
                "ns4.hearstnp.com.",
                "ns2.hearstnp.com.",
                "ns3.hearstnp.com.",
                "ns1.hearstnp.com.",
                "ns6.hearstnp.com.",
                "ns5.hearstnp.com."
            ],
            "SOA": [
                "ns1.hearstnp.com. domains.hearstnp.com. 1786049562 86400 300 2419200 300"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "34.197.233.251",
            "34.204.119.243",
            "34.198.86.45",
            "34.235.224.231"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 ip4:98.129.228.67 ip4:34.239.169.101 include:spf.protection.outlook.com include:_netblocks.google.com ip4:40.121.143.48 ip4:205.220.176.159 ip4:205.220.164.154 ~all",
        "dmarc": "v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email",
        "dkim_selector": "selector1",
        "dkim_host": "selector1._domainkey.sfgate.com",
        "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyJ/yP3yZxFWx4EfIY9wRlwFsa7zo1l4T+VTlwoJYKc7rOgvppB8GSMR2wv3Fx2lTCczn9aQCZOFBu8Da2ZMZnB6zicVprcNQ0qswYfY1L4bRPPwVPKjDzKsD213PN7pO+I3Ydk//wLzhd0FV8cUcnjEMOE13AjeTnxUj+3s5fpvmB0PBJyomwLzAnkE8OMfvDIqXn7WgiU1dEu4FDSaAuRTaz2BqTwz34Zde0rls6T9GG3FCNe35CkuFw26ZilhxqVKy9/gjl2uwwrEFG3oU8ywX12w2zRGlhMkp8zshDFY1uMQnM9unVF9CWp+Fr+nkoZeQCSaHkv8E6UOIQwjdVQIDAQAB;",
        "spf_analysis": {
            "valid": true,
            "lookups": 2,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "ec2-34-197-233-251.compute-1.amazonaws.com",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "34.197.233.251",
                        "34.198.86.45",
                        "34.204.119.243",
                        "34.235.224.231"
                    ],
                    "time_ms": 82.63
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "34.197.233.251",
                        "34.198.86.45",
                        "34.204.119.243",
                        "34.235.224.231"
                    ],
                    "time_ms": 75.01
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
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                        "34.198.86.45",
                        "34.204.119.243",
                        "34.235.224.231"
                    ],
                    "time_ms": 95.08
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "34.197.233.251",
                        "34.198.86.45",
                        "34.204.119.243",
                        "34.235.224.231"
                    ],
                    "time_ms": 152.85
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
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                        "34.198.86.45",
                        "34.204.119.243",
                        "34.235.224.231"
                    ],
                    "time_ms": 126.39
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "sfgate.com",
        "valid_from": "2026-06-10T05:38:09-05:00",
        "valid_to": "2026-09-08T05:38:08-05:00",
        "days_remaining": 30,
        "san": [
            "cars.sfgate.com",
            "cdn.sfgate.com",
            "cmf.sfgate.com",
            "events.sfgate.com",
            "foodandwine.sfgate.com",
            "imgs.sfgate.com",
            "sfgate.com",
            "sfinsider.sfgate.com",
            "www.sfgate.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://www.sfgate.com/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "date": "Sat, 08 Aug 2026 23:55:33 GMT",
            "server": "Apache/2.4.58",
            "location": "https://www.sfgate.com/",
            "cache-control": "private, no-store",
            "expires": "Sat, 08 Aug 2026 23:56:33 GMT",
            "connection": "close",
            "content-type": "text/html; charset=utf-8",
            "set-cookie": "ab_bucket=95; expires=Sun, 08 Aug 2027 23:55:33 GMT; path=/; SameSite=none; Secure",
            "accept-ranges": "bytes",
            "via": "1.1 varnish",
            "x-served-by": "cache-stl760072-STL, cache-stl760040-STL",
            "x-cache": "MISS",
            "x-cache-hits": "0",
            "x-timer": "S1786233333.143932,VS0,VE30",
            "strict-transport-security": "max-age=300",
            "x-vclmem": "4720",
            "x-vcl-version": "497",
            "content-length": "3038"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": false,
            "x-content-type-options": false,
            "x-frame-options": false,
            "referrer-policy": false,
            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "Apache/2.4.58",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.sfgate.com/",
        "title": "Client Challenge",
        "description": "",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "34.197.233.251": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "34.204.119.243": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "34.198.86.45": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "34.235.224.231": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "sfgate-com.mail.protection.outlook.com",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 27.4,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4006.9,
                "banner": "",
                "error": "Connection timed out"
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