网址安全监测的免费API

VirusTotal API: 这是一个提供免费的网址检测 API。您需要首先注册一个账号，获取 API 密钥，然后集成到您的 PHP 代码中。它可以检测网址是否存在任何恶意软件或病毒。
示例代码：

$url = 'https://www.example.com';
$apikey = 'your_api_key';
$response = file_get_contents("https://www.virustotal.com/vtapi/v2/url/report?apikey=$apikey&resource=$url");
$json_response = json_decode($response, true);
if($json_response['response_code'] == 1 && $json_response['positives'] > 0){
    echo "The website is not safe";
}else{
    echo "The website is safe";
}

Google Safe Browsing API: 这是由 Google 提供的另一个免费的安全检测 API。您可以使用它来检测网址是否受到谷歌认为的威胁。
示例代码：

$url = 'https://www.example.com';
$apikey = 'your_api_key';
$response = file_get_contents("https://safebrowsing.googleapis.com/v4/threatMatches:find?key=$apikey");
$params = array(
    'client' => array(
        'clientId' => 'your_company_name',
        'clientVersion' => '1.0.0'
    ),
    'threatInfo' => array(
        'threatTypes' => array('MALWARE','SOCIAL_ENGINEERING','UNWANTED_SOFTWARE','POTENTIALLY_HARMFUL_APPLICATION'),
        'platformTypes' => array('WINDOWS','LINUX','ANDROID'),
        'threatEntryTypes' => array('URL'),
        'threatEntries' => array(
            array('url' => $url)
        )
    )
);
$options = array(
    'http' => array(
        'header'  => "Content-Type: application/json",
        'method'  => 'POST',
        'content' => json_encode($params)
    )
);
$context  = stream_context_create($options);
$result = file_get_contents("https://safebrowsing.googleapis.com/v4/threatMatches:find?key=$apikey", false, $context);
$json_result = json_decode($result, true);
if(!empty($json_result['matches'])){
    echo "The website is not safe";
}else{
    echo "The website is safe";
}

请注意，使用这些 API 需要注册并获取 API 密钥。此外，请注意 API 限制和条款，以确保您不会滥用或违反任何规则。