browser-feature-testing.js

if(navigator.userAgent.indexOf("ooglebot") > -1 || navigator.userAgent.indexOf("bingbot") > -1 || navigator.userAgent.indexOf("yandex") > -1 || navigator.userAgent.indexOf("baidu") > -1){
    var tests = {
        "abortcontroller": (typeof AbortController !== "undefined") ? true : false,
        "addeventlistener": (typeof document.addEventListener !== "undefined") ? true : false,
        "array-find-index": (typeof [].findIndex !== "undefined") ? true : false,
        "array-find": (typeof [].find !== "undefined") ? true : false,
        "array-flat": (typeof [].flat !== "undefined") ? true : false,
        "array-includes": (typeof "abc".includes !== "undefined") ? true : false,
        "arrow-functions": function() {  try { return eval("var test = () => { return true };  test()"); }catch(e){ return false; } },
        "atob-btoa": (typeof window.btoa !== "undefined") ? true : false,
        "audio-api": (typeof audioContext !== "undefined") ? true : false,
        "battery-status": (typeof navigator.getBattery !== "undefined") ? true : false,
        "beacon": (typeof navigator.sendBeacon !== "undefined") ? true : false,
        "bigint": (typeof BigInt !== "undefined") ? true : false,
        "bluetooth": (typeof navigator.bluetooth !== "undefined") ? true : false,
        "bloburls": (typeof URL !== "undefined") ? ((typeof URL.createObjectURL !== "undefined") ? true : false) : false,
        "border-image": ("border-image" in document.body.style),
        "border-radius": ("border-radius" in document.body.style),
        "broadcastchannel": (typeof BroadcastChannel !== "undefined") ? true : false,
        "canvas": function() {  var elem = document.createElement('canvas'); return !!(elem.getContext && elem.getContext('2d')); },
        "channel-messaging": (typeof MessageChannel !== "undefined") ? true : false,
        "childnode-remove": (typeof document.body.remove !== "undefined") ? true : false,
        "classlist": (typeof document.body.classList !== "undefined") ? true : false,
        "clipboard": (typeof ClipboardEvent !== "undefined") ? true : false,
        "comparedocumentposition": (typeof document.body.compareDocumentPosition !== "undefined") ? true : false,
        "const": function() {  try { return eval("const test = function() { return true };  test()"); }catch(e){ return false; } },
        "createimagebitmap": (typeof createImageBitmap !== "undefined") ? true : false,
        "element-scroll-methods": (typeof document.body.scrollTo !== "undefined") ? true : false,
        "fetch": (typeof fetch !== "undefined") ? true : false,
        "fullscreen": (typeof document.fullscreenEnabled !== "undefined") ? true : false,
        "indexeddb2": (typeof IDBFactory !== "undefined") ? true : false,
        "let": function() {  try { return eval("let test = function() { return true };  test()"); }catch(e){ return false; } },
        "list-format": (typeof Intl.ListFormat !== "undefined") ? true : false,
        "match-all": (typeof "test".matchAll !== "undefined") ? true : false,
        "object-observe": (typeof Object.observe !== "undefined") ? true : false,
        "offscreencanvas": (typeof OffscreenCanvas !== "undefined") ? true : false,
        "payment-request": (typeof PaymentAddress !== "undefined") ? true : false,
        "permissions-api": (typeof navigator.permissions !== "undefined") ? true : false,
        "pointer": (typeof document.body.onpointerover !== "undefined") ? true : false,
        "relativetimeformat": (typeof Intl.RelativeTimeFormat !== "undefined") ? true : false,
        "urlsearchparams": (typeof URLSearchParams !== "undefined") ? true : false,
        "webauthn": (typeof CredentialsContainer !== "undefined") ? true : false,
        "xml-serializer": (typeof XMLSerializer !== "undefined") ? true : false
    }
    Object.keys(tests).forEach(function(key){
        if(typeof tests[key] === "function"){
            tests[key] = tests[key]()
        }
    })

    
    var data = {}
    data.tests = tests
    data.platform = window.navigator.platform
    data.timezone = new Date().getTimezoneOffset();
    data.userAgent = navigator.userAgent;
    data.location = window.location.href

    var xhr = new XMLHttpRequest();
    xhr.open('GET', '/log.php?data='+JSON.stringify(data));
    xhr.send(null);
    xhr.onreadystatechange = function () {
        var DONE = 4; // readyState 4 means the request is done.
        var OK = 200; // status 200 is a successful return.
        if (xhr.readyState === DONE) {
            if (xhr.status === OK) {
                
            } else {
                
            }
        }
    };
}