On Saturday 31 January 2026 at 05:18 UTC, a HTTP GET flood targeted a developer platform customer in the UK. The attack peaked at 889.9 million requests per second and lasted 14 minutes. Traffic originated from 4037 autonomous systems in 103 countries, predominantly residential proxy networks.
| Vector | HTTP GET flood |
| Peak | 889.9 million requests per second |
| Duration | 14 min |
| Time to mitigation | 0.484 s |
| Attack traffic reaching origin | 0.020% |
| Legitimate traffic challenged | 0.26% |
Timeline
The attack was preceded by a competitor’s product launch. Request rates on the targeted routes exceeded their hourly baseline by a factor of 662 within 36 seconds. The risk score of participating clients crossed the challenge threshold automatically and proof-of-work difficulty rose with origin load.
What the customer saw
A brief increase in p99 latency of 224 ms during the first minute, then normal service.
Recommendations
- Review allow-listed partner ranges quarterly.
- Enable log streaming to your SIEM for faster correlation.
- Keep origin IPs out of public DNS history.