jQuery 1.9.1, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
Sources 1. Timed redirect https://stackoverflow.com/questions/3292038/redirect-website-after-certain-amount-of-time 2. Timer https://jsfiddle.net/mrwilk/qVuHW/
jQuery 3.4.1, HTML, CSS, JavaScript 1.7
jQuery 3.4.1, HTML, CSS, JavaScript