Script to extract perf results from KeyCDN

keycdn-script.js

// Calculates the average of TTFB from various locations of the 
// KeyCDN server using its performance tool - https://tools.keycdn.com/performance

// Paste this script in the console after getting the performance test of a url

(function () {
    const TTFBIndex = 8
    // Get all the rows of the performance table and remove the first heading row from it;
    const rows = Array.from(document.querySelector(`#perfResult`).children[1].tBodies[0].children).slice(1);
    // calculating sum of the values
    const sum = rows.reduce((acc, row) => {
        var text = row.children[TTFBIndex].innerText;

        if (text.indexOf(`ms`) > -1) {
            acc += parseFloat(text);
        } else if (text.indexOf(`s`) > -1) {
            acc += parseFloat(text);
        }
        return acc
    }, 0)
    console.log(`Average `, sum / rows.length);
})();