The specific file jailbreaks.app/legacy.html is not merely a page; it is a . It is designed specifically for devices running iOS 9, 10, 11, 12, and some versions of 13 that are no longer supported by modern semi-untethered exploits.
: After installation, go to Settings > General > Profiles & Device Management (or just Device Management ) to "Trust" the developer certificate.
h1 text-align: center; color: #444; border-bottom: 2px solid #333; padding-bottom: 10px;