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Free domain WHOIS API

LeviLevi Member
in Help

Looking for fast and free domain WHOIS API. The more domains covered - the better. Goal: validate domain registration, if it is registered. Namesilo, namecheap and similar registrars does not fit, as their TLD support is limited (they do not support .lt domains for example).

Comments

  • tentortentor Member, Patron Provider

    There is also https://deployment.rdap.org/, but it won't help you with .lt TLD

  • MannDudeMannDude Host Rep, Veteran
    edited December 2023

    Can't you just write something to use the whois command?

    Haven't tested it, but ChatGPT suggests:

    check_domain.php:

    // Get the submitted domain name
$domain = isset($_POST['domain']) ? $_POST['domain'] : '';

// Validate the domain name
if (empty($domain)) {
    echo 'Please enter a valid domain name.';
} else {
    // Run the whois command
    $whois_output = shell_exec('whois ' . escapeshellarg($domain));

    // Check if the whois output contains information about registration
    if (strpos($whois_output, 'No match for domain') !== false) {
        echo 'This domain is not registered.';
    } else {
        echo 'This domain is already registered. Whois information: <br>' . nl2br($whois_output);
    }
}


    <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Domain Checker</title>
</head>
<body>

<h2>Domain Checker</h2>

<form action="check_domain.php" method="post">
    <label for="domain">Enter Domain Name:</label>
    <input type="text" id="domain" name="domain" required>
    <button type="submit">Check Domain</button>
</form>

</body>
</html>
  • tentortentor Member, Patron Provider

    @MannDude said: Can't you just write something to use the whois command?

    Parsing whois is a hell

  • davidedavide Member

    IIRC I did ~50,000 requests via GNU whois thru residential proxies. Without proxies it's a bitch.

  • LeviLevi Member

    Fck that, primitive checkdnsrr($domain, "NS") will suffice.

    Idea: free public domain status checker API with normal limits.

  • 4te564te56 Member

    Domainr has an API for status checking. Free/non-commercial hosted on RapidAPI, commercial/high-volume hosted by them directly.

    Docs are here: https://domainr.com/docs/api

  • mikecmikec Member

    IP2WHOIS API at https://www.ip2location.io/ip2whois-documentation

    Free 500 queries monthly.

    { "domain": "locaproxy.com", "domain_id": "1710914405_DOMAIN_COM-VRSN", "status": "clientTransferProhibited https://icann.org/epp#clientTransferProhibited", "create_date": "2012-04-03T02:34:32Z", "update_date": "2021-12-03T02:54:57Z", "expire_date": "2024-04-03T02:34:32Z", "domain_age": 3863, "whois_server": "whois.godaddy.com", "registrar": { "iana_id": "146", "name": "GoDaddy.com, LLC", "url": "https://www.godaddy.com" }, "registrant": { "name": "Registration Private", "organization": "Domains By Proxy, LLC", "street_address": "DomainsByProxy.com", "city": "Tempe", "region": "Arizona", "zip_code": "85284", "country": "US", "phone": "+1.4806242599", "fax": "+1.4806242598", "email": "Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=LOCAPROXY.COM" }, "admin": { "name": "Registration Private", "organization": "Domains By Proxy, LLC", "street_address": "DomainsByProxy.com", "city": "Tempe", "region": "Arizona", "zip_code": "85284", "country": "US", "phone": "+1.4806242599", "fax": "+1.4806242598", "email": "Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=LOCAPROXY.COM" }, "tech": { "name": "Registration Private", "organization": "Domains By Proxy, LLC", "street_address": "DomainsByProxy.com", "city": "Tempe", "region": "Arizona", "zip_code": "85284", "country": "US", "phone": "+1.4806242599", "fax": "+1.4806242598", "email": "Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=LOCAPROXY.COM" }, "billing": { "name": "", "organization": "", "street_address": "", "city": "", "region": "", "zip_code": "", "country": "", "phone": "", "fax": "", "email": "" }, "nameservers": ["vera.ns.cloudflare.com", "walt.ns.cloudflare.com"] }

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