How has use of framing protection security headers changed in the past 3 years?, (Wed, Jun 10th) (opens in new tab)  📡Channels  Content type: Academic

Back in 2023, I wrote a diary[1] discussing how commonly X-Frame-Options and CSP headers containing the frame-ancestors directive were used on 1 million most popular domains on the internet (based on the Tranco list[2]), and how they were set. Given that three years have passed since then, I thought it might be interesting to repeat the analysis and see what – if anything – has changed in the meantime.