{
    "ok": true,
    "domain": "natwest.com",
    "generated_at": "2026-08-11T02:15:45-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 83,
        "label": "Good",
        "categories": {
            "dns": 75,
            "mail": 90,
            "security": 80,
            "network": 55,
            "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": 10,
                "lost_points": 0,
                "detail": "1 IPv6 address(es) detected."
            },
            {
                "category": "dns",
                "title": "Name server redundancy",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "2 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": 0,
                "lost_points": 10,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "8 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": "7 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
                "max_points": 10,
                "earned_points": 2,
                "lost_points": 8,
                "detail": "Full points require at least 30 days remaining."
            },
            {
                "category": "security",
                "title": "HTTP security headers",
                "max_points": 35,
                "earned_points": 23,
                "lost_points": 12,
                "detail": "6 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": 20,
                "lost_points": 15,
                "detail": "Two or more IPv4 addresses receive full points."
            },
            {
                "category": "network",
                "title": "IPv6 connectivity",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0,
                "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": "ok",
                "title": "IPv6 (AAAA)",
                "detail": "1 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "2 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": "error",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
                "title": "MX records",
                "detail": "8 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": "7 day(s) remaining.",
                "category": "security",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0
            },
            {
                "level": "warning",
                "title": "Certificate lifetime",
                "detail": "Full points require at least 30 days remaining.",
                "category": "security",
                "max_points": 10,
                "earned_points": 2,
                "lost_points": 8
            },
            {
                "level": "warning",
                "title": "HTTP security headers",
                "detail": "6 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 23,
                "lost_points": 12
            },
            {
                "level": "error",
                "title": "PTR reverse DNS",
                "detail": "PTR not detected.",
                "category": "network",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30
            },
            {
                "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": "ok",
                "title": "IPv6 connectivity",
                "detail": "AAAA availability.",
                "category": "network",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0
            },
            {
                "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": [
                "150.171.109.183"
            ],
            "AAAA": [
                "2603:1061:14:1c2::1"
            ],
            "CNAME": [],
            "MX": [
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                "10 mail14.rbs.com.",
                "10 mail04.rbs.com.",
                "10 mail13.rbs.com.",
                "10 mail02.rbs.com.",
                "10 mail15.rbs.com.",
                "10 mail16.rbs.com.",
                "10 mail01.rbs.com."
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            "TXT": [
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                "\"hcp-domain-verification=15bb2b571cbf61eb11972a1a7ea4d6b3b0bd6604c171c45e6726165609b2b8c9\"",
                "\"hcp-domain-verification=b1e2282560488a8bf14b8952781a9ff1ca7b234697820554f9ebd5aa9f54c5ba\"",
                "\"google-site-verification=TcUnRdI0f2nLsJH24Wl5eer6XTTYq2bREFBStt6nsTA\"",
                "\"hcp-domain-verification=74869860450b7ce46a6658639511f428ec5bbb64eb4b177e7f4eda268e01ac50\"",
                "\"facebook-domain-verification=pm28mp1iyyit8ndzk9syde2lbo7sf3\"",
                "\"adobe-idp-site-verification=641792395842e9c7dfd8d65c821ed7a9e09eb29ce1e518d34ca193bdf66fa4ec\"",
                "\"hcp-domain-verification=60e716a60d925c6c12aeea9c8ae5738cabe3b1aa9f00362e54ccd754d569adb5\"",
                "\"hcp-domain-verification=17967ea65f35f46b995726e587d90573ccac6aaf23e3a8f28282b224d23e9b60\"",
                "\"google-site-verification=k1rgRZEsZdrUjWUuva53F0tv-0JuTQs5aK9Oobxknrk\"",
                "\"Yn5wRXwsSo/zzcEu5AgquIu135Bt864lYgHlPFK+XTdkPdtzolNAY4oUGdCAJvNR2OLPPUTceFwp5OA/jtZsrA==\"",
                "\"twilio-domain-verification=acbe70f92d5a4aef2b80c928ecfc2f19\"",
                "\"hcp-domain-verification=e5befca56b8cdc255fac8d33bcccdfcf400a9febacce2dd9b35d04551793e3a3\"",
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                "\"hcp-domain-verification=550d75fe9c7804780b08133b69728475969e92093740d822ccced90ad4722d5d\"",
                "\"adobe-sign-verification=a8c27034c1cd39851b67d5d68276dcd6\"",
                "\"apple-domain-verification=IqXcrZfN7rjbjn9g\"",
                "\"atlassian-domain-verification=flnamO4dwq3z3g3lqA/2XdN9LE4I1BgfZstm/2YLjis1uhLVSkkDPyxeC197djVo\"",
                "\"hcp-domain-verification=de797d3000d1f851719d4ede8b7d4110f4f921a58ccb5362cbdafe5286440841\"",
                "\"pexip-ms-tenant-domain-verification=5b44155a-b3af-4ff2-afb6-16562cbb8540\"",
                "\"dtm-domain-verification=i2jvBQJK08uT_i4KWgsbVCx-Z6cnGZiMqHGRKmkHiiM\"",
                "\"MS=ms82743154\"",
                "\"dc877d15-6af2-44d6-88f0-bc17059300ba\"",
                "\"hcp-domain-verification=497e4d1940aab483a1cf8bd4ca26ea8e37bb2521d6b4ea0e4f6f163d0fa16c6a\"",
                "\"apple-domain-verification=0x7XCbJmA_cX17EzsF-NA5fj6kfju6wwJaqFiMu45Os\"",
                "\"pexip-portal-domain-verification=5b44155a-b3af-4ff2-afb6-16562cbb8540\"",
                "\"hcp-domain-verification=f28ba6d6d02efe319be4de3f47ebfe827b80963ad3fc269bb7abea3c6142ac63\"",
                "\"hcp-domain-verification=10cebe53ac6a032497cf67ca6e857fe9902b9e1844bbab189aded51432075cf2\"",
                "\"onetrust-domain-verification=19de748a2f884c84928562a9b69e96ac\"",
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                "\"hcp-domain-verification=b4330a5d7c182c65b9eb6c85ce04f5c9886d1bed696dda30664c0029efb3fc15\"",
                "\"amazonses:Sg6m6akLDWABsjpzrzr7pUogQTqEWT0M7pfdrwP5bjs=\"",
                "\"flexera-domain-verification-gqlthyqyxzftximq\"",
                "\"neat-pulse-domain-verification-1nNVB7N=b93a5fbe-7d16-43a1-b541-87476dd74c01\"",
                "\"jamf-site-verification=vMbdEdMBkAIKuOR1hDTeWw\"",
                "\"hcp-domain-verification=7c7a2fdf65b44b4887d8d0986f694d303c3b71453d0d8872cbce8b18c2b9edcf\"",
                "\"smartsheet-site-validation=M_PCaY4fbTcNDJuYR4NOwafPzt8T4dvM\"",
                "\"v=spf1 ip4:155.136.80.0/24 ip4:80.75.73.242 ip4:81.145.55.71 ip4:82.144.239.194 ip4:195.3.184.231 ip4:195.3.184.230 ip4:195.225.218.101 ip4:195.184.243.2 ip4:155.136.18.0/24 -all\"",
                "\"flexera-domain-verification-bnpliwdvjtzqqtjp\""
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            "NS": [
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                "udns2.cscdns.uk."
            ],
            "SOA": [
                "udns1.cscdns.net. premiumdns.support.neustar. 2019116544 3600 600 604800 86400"
            ],
            "CAA": [
                "0 issue \"digicert.com\"",
                "0 issue \"sectigo.com\"",
                "0 iodef \"mailto:RBS.Group.PKI.Certificates@rbs.co.uk\"",
                "0 issue \"quovadisglobal.com\""
            ],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "150.171.109.183"
        ],
        "ipv6": [
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        ]
    },
    "mail": {
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        "dmarc": "v=DMARC1; p=reject; fo=1; rua=mailto:rbs@rua.netcraft.com; ruf=mailto:rbs@ruf.netcraft.com",
        "dkim_selector": "mail",
        "dkim_host": "mail._domainkey.natwest.com",
        "dkim": "v=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC2xI84G9eA5R5o91Lg6oSD3uyVeYUQGtRVN+KHUDv6JemvoCNDW8qFCofOMp8eMub5mpk9MfBOEomCcij/fsymZb6TVmOYY3fYQWqc6ERwY7+5S4K65s5R6utn1GZRK67ok+91Q9t7jbZ96b5LsZDHrbILVsCF2N90dDSZmaqeMwIDAQAB;",
        "spf_analysis": {
            "valid": true,
            "lookups": 0,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": false,
            "results": [
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                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                    ],
                    "time_ms": 72.35
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
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                    "time_ms": 71.78
                },
                {
                    "provider": "Quad9",
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                    "result": [
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                        "13.107.253.32"
                    ],
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                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
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                    "time_ms": 71.74
                },
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                    "provider": "AdGuard",
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                    "result": [
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                    "time_ms": 87.38
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    "ssl": {
        "available": true,
        "issuer": "COMODO CA Limited",
        "subject": "natwest.com",
        "valid_from": "2025-08-17T19:00:00-05:00",
        "valid_to": "2026-08-18T18:59:59-05:00",
        "days_remaining": 7,
        "san": [
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            "corporate.natwest.com",
            "natwest.co.uk",
            "www.natwest.co.uk",
            "www.natwest.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://www.natwest.com/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "date": "Tue, 11 Aug 2026 07:15:37 GMT",
            "content-type": "text/html; charset=UTF-8",
            "location": "https://www.natwest.com/",
            "x-frame-options": "SAMEORIGIN",
            "x-dispatcher": "mountain.fire",
            "x-vhost": "Natwest Com",
            "strict-transport-security": "max-age=31536000; includeSubDomains; preload",
            "referrer-policy": "strict-origin-when-cross-origin",
            "permissions-policy": "geolocation=(self \"https://natwest.com\")",
            "access-control-allow-origin": "https://supportcentre.natwest.com",
            "vary": "Origin,Accept-Encoding,User-Agent",
            "x-azure-ref": "20260811T071536Z-16475f7bbb6grntphC1CHIzrt80000000mzg0000000032tw",
            "cache-control": "max-age=900, public",
            "x-fd-int-roxy-purgeid": "66758216",
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