{
    "ok": true,
    "domain": "quillbot.com",
    "generated_at": "2026-08-09T09:16:22-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 87,
        "label": "Good",
        "categories": {
            "dns": 85,
            "mail": 90,
            "security": 84,
            "network": 70,
            "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": 10,
                "lost_points": 0,
                "detail": "2 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": 10,
                "lost_points": 0,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "6 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": "63 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": 19,
                "lost_points": 16,
                "detail": "5 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": 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": "2 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "IPv6 (AAAA)",
                "detail": "2 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": "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": "6 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": "63 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": "5 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 19,
                "lost_points": 16
            },
            {
                "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": "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": [
                "172.64.151.4",
                "104.18.36.252"
            ],
            "AAAA": [
                "2606:4700:4401::ac40:9704",
                "2a06:98c1:3109::6812:24fc"
            ],
            "CNAME": [],
            "MX": [
                "5 alt2.aspmx.l.google.com.",
                "1 aspmx.l.google.com.",
                "5 alt1.aspmx.l.google.com.",
                "15 c3f7p623wympm3lnqu7dnsu4hn75nyd3ydiusicm6mjtrfyhndqq.verification.google.com.",
                "10 alt4.aspmx.l.google.com.",
                "10 alt3.aspmx.l.google.com."
            ],
            "TXT": [
                "\"cursor-domain-verification-7jxyxb=F9OIZCAClvikuONeZ2R2BdKQ1\"",
                "\"google-site-verification=DLgddiI5LkOG9nhwoZOPnIIyt2zB5-M16pR3DWfirw4\"",
                "\"facebook-domain-verification=91qy5hwor3z1sepgfd12zrd3sadi24\"",
                "\"google-site-verification=cqtzl5hYIx2SqwMfRD2IbT1kIVmFg11FMGsTc6RASO8\"",
                "\"brave-ledger-verification=36c8c7f592bc03dfd9435df17a2bfa835f22e1c49fa0dda01d3c050714547579\"",
                "\"google-site-verification=WDW_WY_iJ_UKMh52r79vSzZny-j2d2xX03oX3s_t6O8\"",
                "\"adobe-idp-site-verification=8b9b597326c953485203409a584c256ae5300d4628d2c614db42c35dbfc4d827\"",
                "\"klaviyo-site-verification=MVEXcU\"",
                "\"anthropic-domain-verification-bqet5r=Oh1KqaqZYsJ3O7VRgMucZBaMV\"",
                "\"v=spf1 include:_spf.google.com include:sendgrid.net include:mail.zendesk.com -all\"",
                "\"google-site-verification=yxI5S_6yRUvxG-i0WiUMpuO4P2yBnmUkPb_9A79Aki8\"",
                "\"google-site-verification=Se_C1kLSP75MXVvuj10qJ16Xl06QjhiAd2HJfYqvYhc\"",
                "\"google-site-verification=I51lE_1LKgGWZYXDa3G-q_hbYWsNfq0zHxYeKSoskHQ\"",
                "\"notion-domain-verification=IXUMd60GmcwKZpYbNP3YE4VHnkp1fPJ1CX0FI03Ju6c\"",
                "\"google-site-verification=Gf3es4l048RYUkQ5CiyCyY0Jcmb7h-nADnNAkjC8tz8\"",
                "\"figma-domain-verification=9604c8ad4ad855bbe3815d2ebcd45d07bb5d12ef70081fea0d735bd9451aabbd-1764025325\"",
                "\"google-site-verification=YBOHojQZCcaPxoDrxAH7ladfl0REJa99dHOwG-IxaKY\"",
                "\"google-site-verification=VNzUs93lnU5UZ3TDMoxzJ9CKIUrNjl1YeRNk78ziY1s\"",
                "\"google-site-verification=Fsv3-1u2GPZtbYU-NsqcO3_W4HvA0UkgTPMTOJcHaOE\"",
                "\"google-site-verification=sK88_GPPtm1v2QDgmwsMF2FbgQK6k4uUcm8veo83j3o\"",
                "\"MS=ms81813137\"",
                "\"figma-domain-verification=3766b177e535e8739659ee8103c5bada261084bbcffa88e6cbe346b55e518f90-1718123513\"",
                "\"knowbe4-site-verification=f92d8da9c7cba1a940cdb382022ce59d\"",
                "\"atlassian-domain-verification=HuZkEy3RvMSIX6gZ/iF9B/EYH1awgocgR2HXxCaOZLQhFSSaizLaV68WLJ67OdV5\"",
                "\"google-site-verification=5h3MfYgr0d5Jr0fPooxYm_lD3sRLtlQEm9d3TY-sjX4\"",
                "\"firebase=paraphraser-472c1\"",
                "\"ZOOM_verify_F7fLjdDLGnmeYgsWjEvEn2\"",
                "\"atlassian-domain-verification=OwPlpNGBmAiqXmqiyaGcCQntWc8BAqoiYpmu5sv5ZQISu3RqwyozrkcgRSYNa/CP\"",
                "\"gem-domain-verification=Z7p7feJ7uAhWf9GmjzQP\""
            ],
            "NS": [
                "karl.ns.cloudflare.com.",
                "ruth.ns.cloudflare.com."
            ],
            "SOA": [
                "karl.ns.cloudflare.com. dns.cloudflare.com. 2411349559 10000 2400 604800 1800"
            ],
            "CAA": [
                "0 issue \"amazon.com\"",
                "0 issuewild \"godaddy.com\"",
                "0 issuewild \"comodoca.com\"",
                "0 issue \"letsencrypt.org\"",
                "0 issue \"comodoca.com\"",
                "0 issue \"ssl.com\"",
                "0 issue \"digicert.com; cansignhttpexchanges=yes\"",
                "0 issuewild \"letsencrypt.org\"",
                "0 issue \"pki.goog; cansignhttpexchanges=yes\"",
                "0 issuewild \"pki.goog; cansignhttpexchanges=yes\"",
                "0 issuewild \"digicert.com; cansignhttpexchanges=yes\"",
                "0 issuewild \"ssl.com\""
            ],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "172.64.151.4",
            "104.18.36.252"
        ],
        "ipv6": [
            "2606:4700:4401::ac40:9704",
            "2a06:98c1:3109::6812:24fc"
        ]
    },
    "mail": {
        "spf": "v=spf1 include:_spf.google.com include:sendgrid.net include:mail.zendesk.com -all",
        "dmarc": "v=DMARC1; p=reject; rua=mailto:developer@quillbot.com",
        "dkim_selector": "google",
        "dkim_host": "google._domainkey.quillbot.com",
        "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApWoaqMgJBNy9RWe0J7w4iav2qlLi9PkuiHgJfRb+3g+SKKlhvMQ8ikb7c3lQmTV2G4IPX6dha8lPuZGrHjpp3GkQmJrFn0zuugDOTQ+7RPIpHnijyCEqADInQC6Mu13wXNmaBS2puGABS43yS/I6qf1xO21KUtoh4xK0ZSlQm+4Z8T000SjxnFN1+J1RqMu9UG2vOxPRVBqwKPx//Je0MmYfVqoglfFWxN32JNI2YdvYAfhFlqqSBlgp8ld3lxjiXzOED7GkJmtQFkyufrI6xazaItX7IYI/iz60gqe7Cuhz0k8ZDP+efcN4kjDO1ZNJ3ODJDhNMQ0fV903qHALixwIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 3,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "v=BIMI1;l=https://storage.googleapis.com/assets.quillbot.com/brand/learneo_inc_1155279065.svg;a=https://storage.googleapis.com/assets.quillbot.com/brand/learneo_inc_1155279065.pem",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "104.18.36.252",
                        "172.64.151.4"
                    ],
                    "time_ms": 54.88
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "104.18.36.252",
                        "172.64.151.4"
                    ],
                    "time_ms": 46.18
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "104.18.36.252",
                        "172.64.151.4"
                    ],
                    "time_ms": 52.12
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "104.18.36.252",
                        "172.64.151.4"
                    ],
                    "time_ms": 45.77
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "104.18.36.252",
                        "172.64.151.4"
                    ],
                    "time_ms": 44.57
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "quillbot.com",
        "valid_from": "2026-07-13T09:56:40-05:00",
        "valid_to": "2026-10-11T09:56:39-05:00",
        "days_remaining": 63,
        "san": [
            "*.quillbot.com",
            "quillbot.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://quillbot.com/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "date": "Sun, 09 Aug 2026 14:16:13 GMT",
            "content-type": "text/html; charset=utf-8",
            "cf-ray": "a2876097ec1776cb-STL",
            "cf-cache-status": "MISS",
            "cache-control": "no-cache, max-age=0, must-revalidate",
            "set-cookie": "__cf_bm=RXVFvMLl7mTihlzqHMxE7Kdr7fbPn7O9rk1KP4I9P0w-1786284972.7834382-1.0.1.1-jeIYZb3ehq8At3hEZTL75WFpc1CecB4mzacVxQVrVyaTEbcr365JLQ0CpaDGsfZFOMLvSMrkfhFD_bNNJ1pvVh_DF7BJ2sDHuUid4e4ViNr8klIab9wNfmMsHomo6eqD; HttpOnly; SameSite=None; Secure; Path=/; Domain=quillbot.com; Expires=Sun, 09 Aug 2026 14:46:13 GMT",
            "etag": "W/\"cb849-Xxs0ZjB83TzaRChd61LTj523zxY\"",
            "server": "cloudflare",
            "x-error-namespace": "AUTHENTICATION",
            "strict-transport-security": "max-age=300; includeSubDomains",
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