Cloudflare Fortifies Internet Security with Post-Quantum Cryptography for Millions of Domains During 15th Birthday Week

Cloudflare is celebrating its 15th Birthday Week with a series of significant announcements aimed at enhancing internet security and control. Rita Kozlov, a Cloudflare executive, invited followers to discuss "day 3 of cloudflare birthday week ☕️" on September 24, 2025, highlighting the ongoing stream of innovations from the company's annual event. The week-long celebration underscores Cloudflare's mission to build a better internet.

The company's 15th anniversary celebrations include a major push towards future-proofing the internet against emerging threats. Cloudflare announced it has automatically upgraded security for over 6 million domains with Automatic SSL/TLS, preparing them for the quantum computing era. This initiative ensures safer connections and pre-emptively addresses potential vulnerabilities from powerful quantum computers.

Further reinforcing its security posture, Cloudflare's WARP client now supports post-quantum cryptography (PQC). This upgrade protects both consumers and enterprises from adversaries who might harvest internet traffic today to decrypt it with future quantum technologies. The move underscores Cloudflare's commitment to securing digital communications against long-term threats.

Beyond security infrastructure, Cloudflare is also empowering content creators with a new "Content Signals Policy." This policy provides website owners and publishers with tools to declare preferences on how AI companies access and utilize their content, available completely free of charge. The initiative aims to foster responsible AI bot principles, emphasizing transparency and respect for content use.

Other notable announcements during the 2025 Birthday Week include proposals for responsible AI bot principles, an update to their CSAM scanning tool making it easier to enable for all customers, and enhanced security tools for data in SaaS-to-SaaS applications. Additionally, Cloudflare introduced an expansion of its "Cloudflare for Startups" program to include non-profit organizations, offering up to $250,000 in credits. These developments collectively advance Cloudflare's mission to build a more secure, open, and user-controlled internet.