{
    "ok": true,
    "domain": "vietnamairlines.com",
    "generated_at": "2026-08-10T16:44:53-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 80,
        "label": "Good",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 81,
            "network": 35,
            "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": "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": "3 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": "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": "140 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": 0,
                "lost_points": 30,
                "detail": "PTR not detected."
            },
            {
                "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": "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": "3 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": "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": "140 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": "error",
                "title": "PTR reverse DNS",
                "detail": "PTR not detected.",
                "category": "network",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30
            },
            {
                "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": [
                "104.17.51.85",
                "104.16.61.100"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "10 mail01.vietnamairlines.com.",
                "10 mail03.vietnamairlines.com.",
                "10 mail04.vietnamairlines.com.",
                "10 mail02.vietnamairlines.com.",
                "50 vietnamairlines-com.mail.protection.outlook.com."
            ],
            "TXT": [
                "\"DirectFedAuthUrl=https://sso.skyteam.com/app/lams_entraidauthentication_1/exki1nw5b7Ankn4wZ417/sso/saml\"",
                "\"google-site-verification=CXUMNR9m2KYAOlg0pfdeGb0HgXM9gm7cEoWJiKJxvCw\"",
                "\"google-site-verification=keZ_AkfaUqSPvcoTWZtpvyTm5iVMB0gVwRdv6qGwj5I\"",
                "\"_6j7j4f46ps6oq2klf6058431yc4l1ye\"",
                "\"_globalsign-domain-verification=KDSOX9n8IUhl5NtRC70o6i2Nb76gxnAwurv76jmxFN\"",
                "\"google-site-verification=4ePDKJCGHY-Sf_g-aBbEGZfdIIFFs1IL1gSzJF7vzRI\"",
                "\"DirectFedAuthUrl=https://iam.skyteam.com/app/skyteamiam_entraidtest_1/exk8xe3lgjjqM6UY50x7/sso/saml\"",
                "\"adobe-idp-site-verification=3ee7f246432a3dfb516da617915023728fbb9d91c10691ed471ff91574b78235\"",
                "\"google-gws-recovery-domain-verification=41154188\"",
                "\"google-site-verification=8BdmiF294OQBWDntCGJrjfHereQA_eM-Dn0YEl1yhv4\"",
                "\"MS=2DE0A54963A7329BAA0B127EE72BC72E8D74849B\"",
                "\"cisco-ci-domainverification=259ee4a016a5ae8ab22f8190dc5fe1b2cee057857aca1f1876429e9f128b7db7\"",
                "\"v=spf1 ip4:183.90.160.208/28 include:spf.protection.outlook.com include:_spf.salesforce.com ~all\"",
                "\"apple-domain-verification=d89kolJyDI9xiilH\""
            ],
            "NS": [
                "nsbak.pavietnam.net.",
                "ns1.pavietnam.vn.",
                "ns2.pavietnam.vn."
            ],
            "SOA": [
                "ns1.pavietnam.vn. hostmaster.vietnamairlines.com. 2026080765 14400 3600 1209600 86400"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "104.17.51.85",
            "104.16.61.100"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 ip4:183.90.160.208/28 include:spf.protection.outlook.com include:_spf.salesforce.com ~all",
        "dmarc": "v=DMARC1; p=quarantine; pct=100; sp=quarantine; rua=mailto:dmarc-reports@vietnamairlines.com",
        "dkim_selector": "selector1",
        "dkim_host": "selector1._domainkey.vietnamairlines.com",
        "dkim": "v=DKIM1; k=rsa;p=selector1-vietnamairlinescom._domainkey.vietnamairlines0.onmicrosoft.com",
        "spf_analysis": {
            "valid": true,
            "lookups": 2,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
        },
        "bimi": "v=BIMI1; l=https://vmc.digicert.com/9219bdaf-53af-4794-b3c3-07922df84e85.svg; a=https://vmc.digicert.com/9219bdaf-53af-4794-b3c3-07922df84e85.pem",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "104.16.61.100",
                        "104.17.51.85"
                    ],
                    "time_ms": 296.82
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "104.16.61.100",
                        "104.17.51.85"
                    ],
                    "time_ms": 251.63
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "104.16.61.100",
                        "104.17.51.85"
                    ],
                    "time_ms": 278.74
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "104.16.61.100",
                        "104.17.51.85"
                    ],
                    "time_ms": 892.93
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "104.16.61.100",
                        "104.17.51.85"
                    ],
                    "time_ms": 323.12
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "GlobalSign nv-sa",
        "subject": "vietnamairlines.com",
        "valid_from": "2025-11-27T01:36:04-06:00",
        "valid_to": "2026-12-29T01:36:03-06:00",
        "days_remaining": 140,
        "san": [
            "vietnamairlines.com",
            "*.vietnamairlines.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://www.vietnamairlines.com/us/en/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "date": "Mon, 10 Aug 2026 21:44:44 GMT",
            "content-type": "text/html;charset=utf-8",
            "location": "https://www.vietnamairlines.com/us/en/",
            "server": "cloudflare",
            "cf-ray": "a2922efc4a4a5b32-STL",
            "alt-svc": "h3=\":443\"; ma=86400",
            "vary": "Accept-Encoding",
            "set-cookie": "__cf_bm=x4L38Hf5Xv6Sg4UP5Qvo6.5dGN5NsydGUR_89FboziA-1786398284.209366-1.0.1.1-KR2INV28yd5ttzWP1go8pg_EYusgEh65pbEL8eq.IGMKAxiuH7NkMHcpd1xFz9pdLMuQl_nUediypwfRH6YfmWkiFLkTZcnzOm3ysl8fHWkBw98VkZlc0.dnrQZ_MhwP; HttpOnly; SameSite=None; Secure; Path=/; Domain=vietnamairlines.com; Expires=Mon, 10 Aug 2026 22:14:44 GMT",
            "cf-cache-status": "HIT",
            "x-timer": "S1786389767.104110,VS0,VS0,VE1617",
            "cache-control": "public, max-age=14400",
            "x-served-by": "cache-dfw-kdfw8210069-DFW",
            "expires": "Tue, 11 Aug 2026 01:44:44 GMT",
            "last-modified": "Mon, 10 Aug 2026 18:04:27 GMT",
            "x-vhost": "publish",
            "strict-transport-security": "max-age=31557600",
            "pmuser_check_country": "",
            "pmuser_check_language": "",
            "x-debug": "Full Path",
            "x-debug2": "us|St.%20Louis|America/Chicago|209.126.102.143",
            "x-final-path": "/us/en/",
            "content-security-policy": "frame-ancestors 'self' *.vietnamairlines.com",
            "x-cache": "MISS",
            "x-content-type-options": "nosniff",
            "x-frame-options": "SAMEORIGIN"
        },
        "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": "cloudflare",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.vietnamairlines.com/us/en/",
        "title": "Vietnam Airlines | Reach Further | Official website",
        "description": "Great value fares with Vietnam Airlines. Book today and save! Skytrax – 4 Star airline. Official website. Earn frequent flyer miles with Lotusmiles.",
        "success": true,
        "error": "",
        "status": 206
    },
    "network": {
        "104.17.51.85": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "104.16.61.100": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "mail01.vietnamairlines.com",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 242.6,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4262,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4003.4,
                "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": 109.98
}