DNS & Email Security API

DNS and domain intelligence: A/AAAA/CNAME, MX (sorted), NS, TXT, SOA records plus email security posture — SPF record, DMARC policy, and DKIM selector probing. For deliverability, security, and research agents. ?domain=example.com

Parameters

Example request

curl "https://api.webbersites.com/api/dns?domain=example.com"
# first call returns 402 + payment requirements; an x402 client pays and retries automatically

Example response

{
    "domain": "example.com",
    "resolves": true,
    "records": {
        "a": [
            "93.184.215.14"
        ],
        "mx": [
            {
                "exchange": "mail.example.com",
                "priority": 10
            }
        ],
        "ns": [
            "a.iana-servers.net"
        ],
        "txt": [
            "v=spf1 -all"
        ]
    },
    "email": {
        "mail_configured": true,
        "spf": {
            "present": true
        },
        "dmarc": {
            "present": true,
            "policy": "reject"
        },
        "dkim": {
            "found_selectors": []
        }
    }
}

How payment works

There is no signup and no API key. Call the endpoint; it replies 402 Payment Required with machine-readable payment requirements. Your client signs a USDC transfer authorization (EIP-3009, gasless) and retries with the X-PAYMENT header — @x402/fetch does this automatically. See the overview for a working snippet.