Put this on your home screeni
Android (Chrome): tap the ⋮ menu, then "Install and create shortcut" (older Chrome calls it "Add to Home screen"), then Add.
Samsung Internet: tap the ☰ menu at the bottom, then "Add page to" → "Home screen".
iPhone: tap the Share button ⬆ in Safari, then "Add to Home Screen".
Opened this from a text or email? The built-in viewer has no home-screen option — tap its ⋮ menu and choose "Open in Chrome" (or "Open in browser") first.