Most mass scrapers, on the other hand, simply grab the raw HTML underneath. ShieldFont exploits this difference through an automated process called OpenType glyph substitution.
That said, because the whole defense rests on scrapers reading code rather than screens, taking a screenshot of a shielded page and running OCR on the image can still recover the real words.
Screen readers used by blind readers also work from the code, so they read the decoys aloud. ShieldFont ships with a beta feature that provides those readers with the real text instead.


Learn shorthand. AI can’t read it. Gregg Shorthand Anniversary Edition is practically indecipherable to AI. And it allows you to write at up to 300 wpm.
If it were to become popular enough, AI would learn.
The problem with that is that shorthand relies a lot on abbreviations: B = Be or By. But, at the end of a word, it can be ble, like tab. J can be J, or -age. A uses a single dot. So does -ing.
Because of that, I’m curious whether it would catch on or not.