technology software

entertainment media

adult content

download file sharing

documentation technical

English

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Within the British Indian Ocean Territory country-code top-level domain (.io), 'cardgames.io' is registered and has no subdomain. The second-level label 'cardgames' is 9 characters long with 3 vowels and six consonants. Tokenizing the label suggests 2 words: card, games. Median word length is 4.5 characters. No strong language cues emerged from the frequency lists.

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issues

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files[]

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Play Chess online for free, against the computer, or other people from around the world! Very simple and easy to get started, great graphics, no account required, not even for multiplayer games, just start playing right away!

Description

language

viewport

apple-mobile-web-app-title

apple-mobile-web-app-capable

twitter:card

twitter:site

twitter:creator

Play Chess, the classic board game! Play against the computer, or against other people from around the world!

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HSTS header missing - vulnerable to protocol downgrade attacks

CSP header missing - vulnerable to XSS attacks

Raudas Hugbunadur ehf

Gandi SAS

cardgames.io

Amazon EC2 Abuse

IP Management

Amazon AWS Network Operations

Amazon.com, Inc.

AWS RPKI Management POC

IP Routing

Amazon EC2 Network Operations

AMAZO-CF


        try{
            const params = new URLSearchParams(window.location.search);

            if (params.get('enableRecover') === '1') {
                document.write('<script data-cfasync="false" src="/shared/lib/fstar-far.js"><\/script>');
            }

            if (params.get('enableShield') === '1') {
                document.write('<script data-cfasync="false" src="/shared/lib/fstar-shield.js"><\/script>');
            }
        } catch (e) {
            // ignore, just means URLSearchParams isn't supported, which is fine, its only for freestar
        }
    


        // default Consent MUST to be set before the first gtag call
        window.dataLayer = window.dataLayer || [];
        function gtag() { dataLayer.push(arguments); }
        // 1) Global defaults: GRANTED (covers US where no banner/updates are sent)
        gtag('consent', 'default', {
            ad_storage: 'granted',
            analytics_storage: 'granted',
            ad_user_data: 'granted',
            ad_personalization: 'granted',
            wait_for_update: 500
        });

        gtag('consent', 'default', {
            ad_storage: 'denied',
            analytics_storage: 'denied',
            ad_user_data: 'denied',
            ad_personalization: 'denied',
            region: [
                // EU/EEA members
                "AT", "BE", "BG", "HR", "CY", "CZ", "DK", "EE", "FI", "FR", "DE", "GR", "HU",
                "IE", "IT", "LV", "LT", "LU", "MT", "NL", "PL", "PT", "RO", "SK", "SI", "ES", "SE",
                // EEA non-EU
                "IS", "NO", "LI",
                // UK + CH
                "GB", "CH",
                // European territories/microstates often aligned
                "AX", "MC", "SM", "GI", "GF", "GP", "MQ", "RE", "YT", "MF",
                // US and Canada
                "CA-QC", "US-CA", "US-CO", "US-CT", "US-UT", "US-VA"
            ],
            wait_for_update: 500
        });
    


        function OptanonWrapper() { }
    


        if (document.location.search.match(/alerterror/)) {
            window.onerror = function (msg, src, line, col, error) {
                if (error && error.stack) {
                    alert(error.stack);
                } else {
                    alert(msg);
                }
            };
        }
    


        try {
            //Allow people to force the desktop look.
            //First check if we're on mobile to decide whether to display the option
            if (localStorage['site.forceDesktopLook'] == 'true') {
                var metas = document.getElementsByTagName('meta');
                for (var i = 0; i < metas.length; i++) {
                    var m = metas[i];
                    if (m.getAttribute('name') === 'viewport') {
                        m.setAttribute('content', 'width=1050');
                        break;
                    }
                }
            }
        } catch (ex) {

        }
    


    var dynamicSizeNode;

        //Do this before body starts rendering to avoid ugly flicker on mobile when calculating the height
        function resize() {
            var MOBILE_HEADER_HEIGHT = 47;
            var MAX_BOARD_HEIGHT = 689;
            var MIN_BOARD_HEIGHT = 411;
            var MOBILE_BREAKPOINT = 730;
            var AVATAR_HEIGHT = 70;

            if (innerWidth <= MOBILE_BREAKPOINT) {
                //Are in the mobile look, might have to force set the height
                var height = innerHeight - MOBILE_HEADER_HEIGHT;
                //Bound the height
                height = Math.min(height, MAX_BOARD_HEIGHT);
                height = Math.max(height, MIN_BOARD_HEIGHT);
                if (!dynamicSizeNode) {
                    dynamicSizeNode = document.createElement('style');
                    document.getElementsByTagName('head')[0].appendChild(dynamicSizeNode);
                }
                if (!APP_MODE) {
                    dynamicSizeNode.innerHTML = '#play-page { height:' + height + 'px; }';
                }

                //Now adjust position of board...
                var availableHeight = height - 2 * AVATAR_HEIGHT;
                var boardHeight = Math.min(innerWidth, 420); //Roughly, the board doesn't fill out the full width, but the message box is added
                var extraHeight = availableHeight - boardHeight;

                if (extraHeight > 2) {
                    dynamicSizeNode.innerHTML += '\n#chess-board { margin-top:' + Math.floor(extraHeight/2) + 'px; }';
                }

            } else {
                if (dynamicSizeNode) {
                    dynamicSizeNode.innerHTML = '';
                }
            }
        }
        resize();
        window.addEventListener('resize', resize);

        var isFirstTimeOnSite = true;
        try {
            for (var k in localStorage) {
                if (k.match(/\.stats/)) {
                    isFirstTimeOnSite = false;
                    break;
                }
            }
        } catch(ex) {}

        if (!isFirstTimeOnSite) { //Only available in hidden mode at first...
            document.documentElement.className += ' choose-opponent';
        }



    //Set immediately to avoid flicker...
    try {
        if (localStorage['chess.color'] === 'white') {
            document.documentElement.className += ' white';
        }
    } catch(ex) { }
    


    if (!APP_MODE) {
        var freestar = freestar || {};
        freestar.queue = freestar.queue || [];
        freestar.config = freestar.config || {};
        freestar.config.enabled_slots = [];

        freestar.queue.push(function () {
            googletag.pubads().setTargeting('page', 'Chess');
        });

        if (htmlIsDev) {
            freestar.queue.push(function () {
                googletag.pubads().set('page_url', 'https://cardgames.io/');
            });
        }
    }



    //Check for custom links

    try {
        //Hide them before page loads to avoid flicker
        var links = localStorage['site.gameLinks'];
        if (links) {
            document.documentElement.className += ' use-custom-links';
        }
    } catch (ex) {
        //Don't interrupt the loading process because of this
    }

    var supportsSvg = true;

    try {
        supportsSvg = document.implementation.hasFeature('https://www.w3.org/TR/SVG11/feature#Image', '1.1');
    } catch (ex) { }

    var themes = {
        current: '',
        names: { halloween: 'Halloween', xmas: 'Christmas', easter: 'Easter', thanksgiving: 'Thanksgiving', valentines: 'Valentines day', newyears: 'New Years', 'world-cup': 'World Cup' },
        init: function () {
            var date = new Date();
            var MOBILE_BREAKPOINT = 730;
            // Dev testing:
            //   ?theme=world-cup forces the theme on.
            //   ?themeDate=2026-07-06 tests automatic date-based activation on dev domains.
            if (htmlIsDev && document.location.search.match(/\bthemeDate=(\d{4})-(\d{2})-(\d{2})/)) {
                date = new Date(parseInt(RegExp.$1, 10), parseInt(RegExp.$2, 10) - 1, parseInt(RegExp.$3, 10));
            }

            if (this.isEaster(date) && screen.width > MOBILE_BREAKPOINT) { //TODO: Find a better way to handle mobile look
                this.current = 'easter';
            } else if (this.isStarWarsDay(date)) {
                this.current = 'starwars';
            } else if (this.isHalloween(date)) {
                this.current = 'halloween';
            } else if (this.isNewYears(date)) {
                this.current = 'newyears';
            } else if (this.isXmas(date)) {
                this.current = 'xmas';
            } else if (this.isThanksgiving(date)) {
                this.current = 'thanksgiving';
            } else if (this.isValentinesDay(date)) {
                this.current = 'valentines';
            } else if (this.isFourthOfJuly(date)) {
                this.current = 'fourthOfJuly';
            } else if (this.isWorldCup(date)) {
                this.current = 'world-cup';
            }

            if (document.location.search.match(/\btheme=([\w-]+)/)) {
                this.current = RegExp.$1;
            }

            if (this.current == '' || this.isTurnedOff()) {
                return;
            }

            document.write("<link href='/themes/1.83.0/" + this.current + ".min.css' id='theme-css' rel='stylesheet' type='text/css'>");
            var html = document.getElementsByTagName('html');
            if (html && html[0]) {
                html[0].className += ' ' + this.current;
            }
            this.initWorldCupBackgroundPan();
        },

        EasterSunday: function (year) {
            var f = Math.floor,
                // Golden Number - 1
                G = year % 19,
                C = f(year / 100),
                // related to Epact
                H = (C - f(C / 4) - f((8 * C + 13) / 25) + 19 * G + 15) % 30,
                // number of days from 21 March to the Paschal full moon
                I = H - f(H / 28) * (1 - f(29 / (H + 1)) * f((21 - G) / 11)),
                // weekday for the Paschal full moon
                J = (year + f(year / 4) + I + 2 - C + f(C / 4)) % 7,
                // number of days from 21 March to the Sunday on or before the Paschal full moon
                L = I - J,
                month = 3 + f((L + 40) / 44),
                day = L + 28 - 31 * f(month / 4);

            return new Date(year, month - 1, day);
        },

        isFourthOfJuly: function (date) {
            let country = document.cookie.split('; ').find(row => row.startsWith('country='));
            if (country) {
                country = country.split('=')[1];
                return date.getMonth() === 6 && date.getDate() === 4 && country === "US";
            } else {
                return false;
            }
        },

        isEaster: function (date) {
            var easterSunday = this.EasterSunday(date.getFullYear());
            var timestamp = date.getTime();
            var oneDay = 24 * 60 * 60 * 1000;
            var minDay = easterSunday.getTime() - 7 * oneDay;
            var maxDay = easterSunday.getTime() + 2 * oneDay;
            if (timestamp >= minDay && timestamp < maxDay) {
                return true;
            }
            return false;
        },

        isHalloween: function (date) {
            return date.getDate() >= 24 && date.getDate() <= 31 && date.getMonth() == 9;
        },
        isValentinesDay: function (date) {
            return date.getDate() === 14 && date.getMonth() === 1;
        },
        isXmas: function (date) {
            return date.getMonth() == 11 && date.getDate() >= 6 && date.getDate() <= 26;
        },
        isStarWarsDay: function (date) {
            return date.getMonth() === 4 && date.getDate() === 4 & !APP_MODE;
        },

        isNewYears: function (date) {
            return (date.getMonth() === 11 && date.getDate() === 31) || (date.getMonth() === 0 && date.getDate() === 1);
        },

        isThanksgiving: function (date) {
            var SUNDAY = 0;
            var THURSDAY = 4;
            var NOVEMBER = 10; //JavaScript's stupid 0-based month count
            var ONE_DAY = 24 * 60 * 60 * 1000;
            var d = date;
            if (d.getDay() !== SUNDAY && d.getDay() < THURSDAY) {
                return false;
            }
            for (var i = 0; i < 4; i++) {
                if (d.getDay() === THURSDAY) {
                    break;
                } else {
                    d = new Date(d - ONE_DAY);
                }
            }
            return d.getDate() >= 22 && d.getDate() <= 28 && d.getMonth() === NOVEMBER; //Fourth Thursday of November
        },

        isWorldCup: function (date) {
            var themeWindows = [
                // Active from the semi-finals through the final. For 2026 that is July 14th through July 19th.
                // JavaScript months are zero-based, so 6 is July and 11 is December. The end date is exclusive.
                { start: new Date(2022, 11, 9), end: new Date(2022, 11, 19) },
                { start: new Date(2026, 6, 14), end: new Date(2026, 6, 20) }
                // PLEASE FILL IN FOR COMING YEARS WHEN KNOWN.
            ];

            for (var i = 0; i < themeWindows.length; i++) {
                var themeWindow = themeWindows[i];
                if (date >= themeWindow.start && date < themeWindow.end) {
                    return true;
                }
            }
            return false;
        },

        isTurnedOff: function () {
            try {
                return this.current == '' || localStorage['site.holidayThemes'] === 'false' || document.cookie.match(/themeoff/);
            } catch (ex) {
                return true;
            }
        },

        usesDarkTheme: function () {
            try {
                return localStorage['site.useDarkTheme'] === 'true';
            } catch (ex) {
                return false; //IF cookies are disabled, or private mode in Safari, then just accessing localStorage can throw.
            }
        },

        initWorldCupBackgroundPan: function () {
            if (this.current !== 'world-cup') {
                return;
            }

            var html = document.documentElement;
            if (html.worldCupBackgroundPanInitialized) {
                return;
            }
            html.worldCupBackgroundPanInitialized = true;

            var imageWidth = 2000;
            var imageHeight = 1333;
            var scheduled = false;

            function update() {
                var body = document.body;
                var viewportWidth = window.innerWidth || html.clientWidth;
                var viewportHeight = window.innerHeight || html.clientHeight;
                var documentHeight = Math.max(html.scrollHeight, body ? body.scrollHeight : 0);
                var scrollMax = Math.max(0, documentHeight - viewportHeight);
                var scrollTop = window.pageYOffset || html.scrollTop || (body ? body.scrollTop : 0) || 0;
                var scrollProgress = scrollMax > 0 ? Math.min(1, Math.max(0, scrollTop / scrollMax)) : 0;
                var scale = Math.max(viewportWidth / imageWidth, viewportHeight / imageHeight);
                var renderedWidth = imageWidth * scale;
                var renderedHeight = imageHeight * scale;
                var imageOverflow = Math.max(0, renderedHeight - viewportHeight);
                var y = -imageOverflow * scrollProgress;

                html.style.setProperty('--world-cup-bg-size', Math.ceil(renderedWidth) + 'px ' + Math.ceil(renderedHeight) + 'px');
                html.style.setProperty('--world-cup-bg-y', Math.floor(y) + 'px');
            }

            function scheduleUpdate() {
                if (scheduled) {
                    return;
                }
                scheduled = true;
                var callback = function () {
                    scheduled = false;
                    update();
                };
                if (window.requestAnimationFrame) {
                    window.requestAnimationFrame(callback);
                } else {
                    window.setTimeout(callback, 16);
                }
            }

            function bindBodyResize() {
                if (window.ResizeObserver && document.body && !html.worldCupBackgroundResizeObserver) {
                    html.worldCupBackgroundResizeObserver = new ResizeObserver(scheduleUpdate);
                    html.worldCupBackgroundResizeObserver.observe(document.body);
                }
            }

            var image = new Image();
            image.onload = function () {
                imageWidth = image.naturalWidth || imageWidth;
                imageHeight = image.naturalHeight || imageHeight;
                scheduleUpdate();
            };
            image.src = STATIC_ASSET_DOMAIN + '/shared/images/world-cup/vollur.jpg';

            window.addEventListener('scroll', scheduleUpdate);
            window.addEventListener('resize', scheduleUpdate);

            if (document.readyState === 'loading') {
                document.addEventListener('DOMContentLoaded', function () {
                    bindBodyResize();
                    scheduleUpdate();
                });
            } else {
                bindBodyResize();
                scheduleUpdate();
            }
        },

        turnOn: function (e) {
            if (this.current === '') {
                return;
            }

            $('html').addClass(this.current);

            $('<link/>').attr({
                href: '/themes/1.83.0/' + this.current + '.min.css',
                rel: 'stylesheet',
                id: 'theme-css'
            }).appendTo('head');

            if (this.usesDarkTheme() && this.current !== 'starwars' && this.current !== 'xmas' && this.current !== 'newyears') {
                $('html').removeClass('dark-theme');
            }
            this.initWorldCupBackgroundPan();
        },
        turnOff: function (e) {
            $('html').removeClass(this.current);
            $('#theme-css').remove();
            if (this.usesDarkTheme()) {
                $('html').addClass('dark-theme');
            }
        }
    };

    try {
        themes.init();
    } catch (ex) { }



    var mainTheme = {
        init: function () {
            var html = document.documentElement;
            try {
                var siteTheme = localStorage['site.useDarkTheme'] === 'true' ? 'dark-theme' : 'normal';
                if (siteTheme && (!themes.current || themes.isTurnedOff() || themes.current === 'starwars' || themes.current === 'newyears' || themes.current === 'valentines' || themes.current === 'xmas')) {
                    html.className += ' ' + siteTheme;
                }
            } catch (ex) {
            }
        }
    };
    mainTheme.init();



                            //Add custom links with document.write to avoid ugly flicker...
                            try {
                                var links = localStorage['site.gameLinks'];
                                if (links) {
                                    var parsedLinks = [];
                                    links = links.replaceAll('\\"', '"'); //Fix for double-escaped quotes in localStorage
                                    if (links.charAt(0) === '[') {
                                        parsedLinks = JSON.parse(links);
                                    } else {
                                        var names = links.split(',');
                                        for (var i = 0; i < names.length; i++) {
                                            parsedLinks.push({ name: names[i] });
                                        }
                                    }

                                    for (var j = 0; j < parsedLinks.length; j++) {
                                        var item = parsedLinks[j] || {};
                                        var name = item.name || '';
                                        var href = item.href;
                                        if (name.replace(/\s*/g, '').toLowerCase() === 'home' || href === '/') {
                                            continue;
                                        }
                                        var url = href || ('/' + name.replace(/\s*/g, '').replace(/&nbsp;/, '').replace(/!/g, '').toLowerCase() + '/');
                                        var link = '<a href="' + url + '">' + name + '</a>';
                                        document.write(link);
                                    }
                                }
                            } catch (ex) {
                                //Nevermind...
                            }
                        


            //Only load huge polyfill file for crap browsers...
            if (typeof Symbol === 'undefined' || !Array.prototype.find || !Array.prototype.includes) {
                //Must load this completely before the game code, hence the document.write...
                document.write('<scr' + 'ipt src="/shared/lib/polyfill.min.js"></scri' + 'pt>');
                window.polyfilled = true;
            }

            //Polyfill for .setPrototypeOf for IE10 and below, since socket.io uses this now...
            if (!Object.setPrototypeOf) {
                Object.setPrototypeOf = function (obj, proto) {
                    for (var prop in proto) {
                        if (!Object.prototype.hasOwnProperty.call(obj, prop)) {
                            obj[prop] = proto[prop]
                        }
                    }
                    return obj
                }
            }
        


            window.mainScriptLoaded = false;
        


            // if mainscript fails to load, the error reporting does not work, so we have to put it here.
            (function () {
                let hasSent = false;
                let storageKey = 'site.isErrorSent';
                let backoff = 24 * 60 * 60 * 1000; //24 hours
                function tryGetLocalStorage(key,fallback) {
                    try {
                        return localStorage.getItem(key);
                    } catch(ex) {
                        return fallback;
                    }
                }
                function trySetLocalStorage(key, value) {
                    try {
                        localStorage.setItem(key, value);
                        return true;
                    } catch(ex) {
                        return false;
                    }
                }
                function hasBeenSent() {
                    if (hasSent) return true;
                    try{
                        if (!window.localStorage) return hasSent;
                    } catch(ex) {
                        return false;
                    }

                    const sentRaw = tryGetLocalStorage(storageKey, false);
                    if (!sentRaw) return false;

                    const sentTime = Number(sentRaw);
                    if (Number.isNaN(sentTime)) return false;

                    const now = Date.now();

                    if ((now - sentTime) < backoff) {
                        return true;
                    }

                    return false;
                }
                function setHasSent() {
                    hasSent = true;
                    trySetLocalStorage(storageKey, Date.now().toString());
                }
                function sendError(payload) {
                    if (hasBeenSent()) {
                        return;
                    }
                    setHasSent();
                    fetch('/api/errors', {
                        method: 'POST',
                        headers: { 'Content-Type': 'application/json' },
                        body: JSON.stringify(payload),
                        keepalive: true
                    }).catch(() => { });
                }
                function reportError(e) {
                    let ignoreErrors = [
                        'Script error',
                        'ResizeObserver'
                    ];
                    for (let ignoreError of ignoreErrors) {
                        if (e.message && e.message.includes(ignoreError)) {
                            return;
                        }
                    }
                    const slug = window.slug || 'no-slug';
                    const name = e.filename ? e.filename.split('/').pop() : 'unknown';
                    const payload = {
                        name: name,
                        slug,
                        errorMessage: e.message || String(e.error || 'Unknown error'),
                        url: location.href,
                        userAgent: navigator.userAgent,
                        maxMailCount: window.maxMailCount ?? 1,
                        line: e.lineno,
                        column: e.colno,
                        stack: e.error?.stack
                    };
                    sendError(payload);
                }

                window.addEventListener('error', reportError);

                /*window.addEventListener('unhandledrejection', e => {
                    let stack = e.reason?.stack || 'unknown stack';
                    stack = stack.substring(0, 50); //Only first 50 chars
                    
                    const slug = window.slug || 'no-slug';
                    const payload = {
                        name: 'unhandled '+String(e.reason),
                        slug,
                        errorMessage: stack,
                        url: location.href,
                        userAgent: navigator.userAgent,
                        maxMailCount: window.maxMailCount ?? 1,
                        stack: e.reason?.stack
                    };
                    console.log(payload);
                    sendError(payload);
                });
                disable while we test
                */
            })();
        


        document.getElementById('report-issues-link').addEventListener('click', function (e) {
            initErrorReportWidgets();
        });
    


        //keybinding incase something is preventing the user from clicking the report issues link, like an ad or something. Ctrl+Shift+R to open, Ctrl+Shift+W to close.
        document.addEventListener('keydown', function (e) {
            if (e.ctrlKey && e.shiftKey && e.code === 'KeyZ') {
                //ensure that the ads checkbox is not already checked
                if (document.querySelector('#issue-ads').checked) {
                    document.getElementById('issue-ads').click();
                }
                document.getElementById('report-issues-link').click();
                document.getElementById('issue-ads').click(); //Click the hidden button to report if an ad is in the way.
                document.getElementById('errorModal').classList.add('on-top'); //Ensure the modal is on top of any ads.

            }
            if (e.ctrlKey && e.shiftKey && e.code === 'KeyX') {
                e.preventDefault();
                document.querySelectorAll('.modal').forEach(el => {
                    el.classList.remove('is-visible');
                });
            }
        });


        document.addEventListener('click', function (e) {
            if (e.target.closest('.modal-trigger')) {
                e.preventDefault();
                document.querySelectorAll('.modal').forEach(el => {
                    el.classList.add('is-visible');
                });
                return;
            }

            if (e.target.closest('.modal .close-button') || e.target.closest('[data-trigger="close"]')) {
                document.querySelectorAll('.modal').forEach(el => {
                    el.classList.remove('is-visible');
                });
            }
        });
    

Requests	IP Address	Location	AS Autonomous System
60	18.66.102.9Cloudfront · CDN	United States	AS16509Amazon.com, Inc.
60	1	-	-

Security Scan Report: cardgames.io

Summary

AI Security Verdict

Safe Website

Safety Factors

Details

Screenshot

Page Load Overview

Language Analysis

Primary Language

Detection Details

Website Classification

Primary Category

All Detected Categories

Detected Features

Domain & IP Information

Detected Technologies17

Content Similarity HashesFor malware variant detection

TLSH (Trend Micro Locality Sensitive Hash)

ssdeep (Context Triggered Piecewise Hashing)

sdhash (Similarity Digest Hashing)

Image Hashes

Perceptual Hashes

Other Hashes

Scan History