It doesn’t work in Safari. https://instant.page/tech https://instant.page/tech > Safari 13.0 has support for <link rel="prefetch"> but it’s disabled by default

It doesn’t work in Safari. https://instant.page/tech https://instant.page/tech > Safari 13.0 has support for <link rel="prefetch"> but it’s disabled by default. Hopefully it will be enabled in September 2020 in Safari 14.0. Try enabling that setting or using another browser (I used Firefox) to see the effect it has.