Cloudflare Stock Rises 2.08% on 11.5 Tbps DDoS Thwarted 370M Volume Ranks 287th

On September 4, 2025, Cloudflare (NET) rose 2.08% with a trading volume of $0.37 billion, marking a 30.34% increase from the prior day and ranking 287th in market activity. The stock’s performance coincided with the company’s announcement of mitigating a record-breaking DDoS attack, which reached 11.5 terabits per second (Tbps) at its peak. The attack, a UDP flood-style incident, lasted approximately 35 seconds and involved 5.1 billion packets per second, according to Cloudflare. The company attributed the attack to a mix of cloud infrastructure and IoT devices, clarifying that while Google Cloud was one source, it was not the majority.

Cloudflare’s successful mitigation highlighted its advanced infrastructure, including global anycast distribution across 477 data centers and automated detection systems like “dosd.” The incident underscored the growing sophistication of cyber threats, with attackers leveraging distributed resources to amplify attacks. Cloudflare noted that such hyper-volumetric DDoS campaigns are becoming more frequent and intense, reflecting a broader trend of escalating cyberhostilities. The company’s ability to neutralize the attack without service disruption reinforced its role as a critical defender of internet infrastructure.

Separately, Cloudflare’s Pay Per Crawl initiative, which restricts AI crawlers from freely accessing websites, has drawn attention. The policy allows content creators to opt into monetizing data access, addressing concerns about bot-driven traffic, which accounts for nearly half of global web traffic. While the initiative has faced pushback from some AI companies, it aligns with broader industry efforts to balance data accessibility with revenue generation for website operators.