Is it Down?

Greasy Fork is available in English.
Simply pulls from TrackerStatus API.
当前为 2020-01-28 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         Is it Down?
// @version      0.3
// @namespace    http://greasyfork.icu/en/users/113783-klattering
// @description  Simply pulls from TrackerStatus API.
// @match        https://redacted.ch/*
// ==/UserScript==

// Set to 'true' if you want the banner positioned on top absolutely.
const isAbsolute = false;

// Set to 'true' if using the kuro stylesheet.
const isKuro = false;

(function() {
    'use strict';

    const trackerStatus = document.createElement('div');


    if (isAbsolute) {
        trackerStatus.style.position = 'absolute';
        trackerStatus.style.top = '0';
        trackerStatus.style.width = '100%';
        trackerStatus.style.boxSizing = 'border-box';
    }

    const message = document.createElement('p');
    message.style.color = 'white';
    message.style.textAlign = 'center';
    message.style.fontWeight = 'bold';
    message.style.margin = '0';
    let messageText;

    document.body.prepend(trackerStatus);
    trackerStatus.append(message);
    trackerStatus.style.display = 'none';

    var request = new XMLHttpRequest();

    request.open('POST', 'https://cors-anywhere.herokuapp.com/https://red.trackerstatus.info/api/all/', true);
    request.setRequestHeader("X-Requested-With", "XMLHttpRequest");
    request.onload = function() {

        var services = JSON.parse(this.response);

        if (request.status >= 200 && request.status < 400) {
            Object.entries(services).forEach(service => {
                if (service[1].Status === "0") {
                   trackerStatus.style.display = 'block';
                   if (isKuro) {
                     trackerStatus.style.position = 'absolute';
                     trackerStatus.style.top = '0';
                     trackerStatus.style.width = '100%';
                     trackerStatus.style.boxSizing = 'border-box';
                     document.body.style.position = 'relative';
                     document.body.style.top = '21px';
                     trackerStatus.style.top = '-26px';
                   }
                   trackerStatus.style.background = '#a00e0e';
                   trackerStatus.style.padding = '.25rem';
                   if (service[0] === "TrackerHTTP" || service[0] === "TrackerHTTPS") {
                        messageText = "The tracker is currently experiencing technical difficulties. <a style=\"color:white; text-decoration:underline\" href=\"https://red.trackerstatus.info\">More info</a>";
                   }
                } else {
                }
            });
        } else {
            console.log('error')
        }

        message.innerHTML = messageText;
    }

    request.send();

})();