If you're seeing heavy bot traffic from Singapore, a lot of it may be coming from Alibaba networks using thousands of rotating IPs.
Per-IP rate limiting or DDoS protection may not help much because the IPs keep changing and they have thousands of ips!
We block the Alibaba ASN on our own servers to reduce this traffic:
cpfence --blacklist-asn AS45102
This won't stop every bot, but it can significantly reduce the noise.
For stronger bot protection, we also recommend using Cloudflare bot protection or server-level reCAPTCHA with LiteSpeed.
