{
    "ok": true,
    "domain": "nextdoor.com",
    "generated_at": "2026-08-09T00:46:03-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 81,
        "label": "Good",
        "categories": {
            "dns": 60,
            "mail": 90,
            "security": 84,
            "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": "4 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": 0,
                "lost_points": 10,
                "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": "199 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": 30,
                "lost_points": 0,
                "detail": "PTR: server-108-157-150-32.mci50.r.cloudfront.net"
            },
            {
                "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": "4 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": "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": "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": "199 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": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: server-108-157-150-32.mci50.r.cloudfront.net",
                "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": [
                "108.157.150.32",
                "108.157.150.33",
                "108.157.150.85",
                "108.157.150.17"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "50 aspmx3.googlemail.com.",
                "10 aspmx.l.google.com.",
                "40 aspmx2.googlemail.com.",
                "30 alt2.aspmx.l.google.com.",
                "20 alt1.aspmx.l.google.com."
            ],
            "TXT": [
                "\"HyyE7huGMzb8zwdmKp5TdDnWQvNP2fI\"",
                "\"v=spf1 include:nextdoor.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all\"",
                "\"google-site-verification=OTZyHZAnCkfafNaOoE-C47xaz2c_4AQ5MjO9b6J6U5U\"",
                "\"stripe-verification=d093b67bc19d2119de1178f8cd47619a7ba3367a79ba2c26aef3504629cf2777\"",
                "\"amazonses:Zgv+qLglapD3jCC/3nAq3seDQ7x3m2BbX2K19QGF4pA=\"",
                "\"stripe-verification=7e5f3cb932f9907759b9a01b00be273b05ee7f681c48ca7d25470c2386ffaf27\"",
                "\"google-site-verification=r7NHJRhgTmTS2Mu8nyoQDdhhmYtERj7zJUX29uabWjM\"",
                "\"have-i-been-pwned-verification=f7e78745f37dc3cce3c163c07a5b1758\"",
                "\"google-site-verification=pPGxzrWdOD4RZHU2FHDk-gc-IZOrhqzYydN1ZHFkoO0\"",
                "\"segment-site-verification=R6tFFkwUk99N4NVzvPM71rEzt5WC7fER\"",
                "\"google-site-verification=vRyT_7LgS3iwK0j1Xa-4hssVsqd-t0gPaeWgfu6ZrrM\"",
                "\"anthropic-domain-verification-43zv66=SYl0xVvQeUScHqpmFY3CdKpS8\"",
                "\"openai-domain-verification=dv-1pyaNQtslu8WISrJEjB8afL5\"",
                "\"00d36000001gqddeas\"",
                "\"MS=ms28859681\"",
                "\"h1-domain-verification=tPjYmixyvCxwJZo2mKh43CT9KyHwp8budWJ6KNXXU7Tqcmyb\"",
                "\"atlassian-domain-verification=xEjhcN2mkn0C+dWmKFSB6xRKKSWAFubHbMnnAlI84bNuPmsk9aCgkAkvSMRAPu75\"",
                "\"stripe-verification=ed5bd9b75b8044bea267024a29553776c7e90bafead69cb3b9c36cd373e96d38\"",
                "\"action-domain-verification-ndp5pd=WWdcoH7cMr7wUBIaGAmOdocVb\"",
                "\"twilio-domain-verification=16008e63da9a904621ab3c180ae4000c\"",
                "\"stripe-verification=a2f8ef65badbd284f3517d1823f7355b2c94336e78ae1f3211f5fb84388a24d2\"",
                "\"hubspot-domain-verification=YjU2MTM4MDItZmJkMS00YjMyLWE1MzQtYmU5YjkxNWQ5ZDA4\"",
                "\"linear-domain-verification=gwt9gr6u62rg\"",
                "\"google-site-verification=jJrOlchVU6F2KtkGHoduYTtPySMzBu00Iui-yufBFsk\"",
                "\"stripe-verification=2330bc9474cc3f973fb84f7514b762129c7161b3a12256e5e70eeeb49d4a4c10\"",
                "\"stripe-verification=6592ecc703321011b70d9e9a2bad18183af4b3d8b43a61749625897b9c5054c9\"",
                "\"jamf-site-verification=tVCbpTjR6J3NFlrt9Xhi3Q\"",
                "\"cursor-domain-verification-fmsj6t=UynbUS4x4TjZqr5Sgy8Fll9FR\"",
                "\"adobe-idp-site-verification=ef96e9b89f65061510835e31e2b68bf5b706a0b7f6c3d2e4679c4aa790fb2605\"",
                "\"cursor-domain-verification-n7t2ea=BH9fXLDULg0CGAEtS7CG9XLKE\"",
                "\"onetrust-domain-verification=b98cb1e5dc4648779952be5836a28fe8\"",
                "\"docusign=f4808610-33ff-434f-a6c2-fcdbb72ad2c5\"",
                "\"CisionOne SAML=ce16d3f59f007aa0cd7b3817919ab56d1f3b84c88135e3583dfbef41fa8fd4c6\"",
                "\"google-site-verification=qcHRaT0QHmpBHQg9LwymiwG3HwXStPDAmdNT4Kxs9cE\"",
                "\"canva-site-verification=74379-_bsPI7RgMPI6t9iQ\"",
                "\"stripe-verification=a6e8d615b93a924b2bd9076a573c40b2bd28cacf12f42c295c227d869634c5ad\""
            ],
            "NS": [
                "ns-983.awsdns-58.net.",
                "ns-413.awsdns-51.com.",
                "ns-1479.awsdns-56.org.",
                "ns-1814.awsdns-34.co.uk."
            ],
            "SOA": [
                "ns-1479.awsdns-56.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "108.157.150.32",
            "108.157.150.33",
            "108.157.150.85",
            "108.157.150.17"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 include:nextdoor.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all",
        "dmarc": "v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email,mailto:dmarc_report@nextdoor.com; ruf=mailto:dmarc_fail@nextdoor.com",
        "dkim_selector": "default",
        "dkim_host": "default._domainkey.nextdoor.com",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDhoUHjdldUnk94dpCjKwlazLF7kkPa0l5iD2hluo2M46TFcRZ9XegdYDXNzSCLwlZ4si+nhuio3KsJrsrJwRKZmYQH+Q8Gj5prP+B3RKyFYUZFEaFpLY8telwPViANftH4jMU9pVqxe/J2+iIsvcALnBazObHbOKfdGysCJmDUBQIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 2,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "v=BIMI1; l=https://amplify.valimail.com/bimi/nextdoor/rLjkEWFvMDk-nextdoor_inc_1530477798.svg; a=https://amplify.valimail.com/bimi/nextdoor/rLjkEWFvMDk-nextdoor_inc_1530477798.pem",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "server-108-157-150-32.mci50.r.cloudfront.net",
        "propagation": {
            "consistent": false,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "3.167.138.120",
                        "3.167.138.15",
                        "3.167.138.30",
                        "3.167.138.54"
                    ],
                    "time_ms": 62.15
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "108.157.150.17",
                        "108.157.150.32",
                        "108.157.150.33",
                        "108.157.150.85"
                    ],
                    "time_ms": 45.79
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "52.84.217.12",
                        "52.84.217.41",
                        "52.84.217.50",
                        "52.84.217.52"
                    ],
                    "time_ms": 44.24
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "3.167.138.120",
                        "3.167.138.15",
                        "3.167.138.30",
                        "3.167.138.54"
                    ],
                    "time_ms": 31.71
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "108.157.150.17",
                        "108.157.150.32",
                        "108.157.150.33",
                        "108.157.150.85"
                    ],
                    "time_ms": 61
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Amazon",
        "subject": "nextdoor.com",
        "valid_from": "2026-01-25T18:00:00-06:00",
        "valid_to": "2027-02-24T17:59:59-06:00",
        "days_remaining": 199,
        "san": [
            "nextdoor.com",
            "*.nextdoor.com",
            "*.us.nextdoor.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
    "http": {
        "url": "https://nextdoor.com/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "content-type": "text/html; charset=utf-8",
            "content-length": "35245",
            "date": "Sun, 09 Aug 2026 05:45:54 GMT",
            "x-envoy-upstream-service-time": "52",
            "server": "istio-envoy",
            "vary": "Accept-Encoding,Cookie",
            "x-nextdoor-langpref": "en-us",
            "cache-control": "no-store",
            "pragma": "no-cache",
            "x-frame-options": "SAMEORIGIN",
            "content-security-policy": "frame-ancestors 'self'",
            "x-permitted-cross-domain-policies": "none",
            "x-xss-protection": "1; mode=block",
            "x-content-type-options": "nosniff",
            "referrer-policy": "strict-origin-when-cross-origin",
            "dd-trace-id": "6a781412000000002024955467545e72",
            "set-cookie": "ADID=\"\"; expires=Thu, 01 Jan 1970 00:00:00 GMT; Max-Age=0; Path=/",
            "context-id": "c5135bc5-f45f-4ff4-a795-20d8f53118d7",
            "x-amzn-trace-id": "Root=1-6a781412-786a1c2f10fa2ae3682801d7;ContextID=c5135bc5-f45f-4ff4-a795-20d8f53118d7",
            "strict-transport-security": "max-age=0",
            "cache-proxy-status": "MISS",
            "x-cache": "Miss from cloudfront",
            "via": "1.1 0838cefe057a8e583e73fb333983588a.cloudfront.net (CloudFront)",
            "x-amz-cf-pop": "ORD51-P1",
            "x-amz-cf-id": "tPowUS4ejy4VTyYREIz9t6PfIvlb5425Ra67GT6leM4KkMBEpgk8cQ=="
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": true,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": true,
            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "istio-envoy",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://nextdoor.com/",
        "title": "Nextdoor",
        "description": "Join Nextdoor, an app for neighborhoods where you can get local tips, buy and sell items, and more",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "108.157.150.32": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "108.157.150.33": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "108.157.150.85": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "108.157.150.17": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
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