The Enterprise WAF Monopoly is Dead: How We Shattered Layer-7 Security Pricing with C++/WASM

Bangsaen AI — Sat, 25 Jul 2026 17:05:06 +0000

For years, giant cloud providers have held a dirty secret: Enterprise WAFs ($200–$1,000+/month) are priced high not because Edge compute is expensive, but because they know you can't build one yourself.

If you run an e-commerce storefront, a event-ticketing platform, or a high-traffic app, you’ve experienced the Layer-7 Bot Tax:

Malicious scrapers, credential stuffers, or checkout bots flood dynamic endpoints (/checkout/, /cart/, /api/).
Your origin server’s CPU spikes to 100%, triggering database locks and killing user sessions with 502 Bad Gateway errors.
Your options? Either pay Cloudflare $200+/month for Business/Enterprise rules or spend $150+/month upgrading your web server instances just to process garbage traffic.

We decided to end this monopoly.

⚡ The Paradigm Shift: Bare-Metal C++/WASM at the Edge

The problem with traditional security isn't that Layer-7 filtering is impossible—it’s that people were doing it in the wrong place with the wrong tools.

We compiled a bare-metal C++ security kernel directly into WebAssembly (WASM) and deployed it to execute at the Global Edge. Instead of letting threats touch your web server, Bangsaen Filter v1.0.0 inspects payloads in microsecond timeframes right at the perimeter.

🧪 Empirical Proof: Zero-Infrastructure Stress Test

We didn't just benchmark this in a lab—we battle-tested it on a real-world WooCommerce storefront integrated with Stripe Express Checkout.

The Test Constraints:

Origin Infrastructure: A $0/month GCP e2-micro instance (1 vCPU, 1 GB RAM—literally the weakest free-tier VM available).
Attack Vector: Heavy dynamic Layer-7 attacks via sqlmap and automated checkout scrapers.

The Empirical Results:

🛑 Bot Destruction: 100% of threat payloads blocked at the Edge with an instant HTTP 403.
⚡ Edge CPU Execution Time: ~1.3 milliseconds average.
🖥️ Origin CPU Utilization: 0.00% (Zero PHP/MariaDB overhead. The attack never touched the server!).
💳 Real Buyer Latency: Legitimate shoppers checked out via Apple Pay and Google Pay in <600ms while the attack was actively running.

💣 Why $19/mo for 1M Requests Changes Everything

In the old model, 800,000 malicious bot requests meant a crashed server or a $300 hosting bill.

With Bangsaen Filter Pro ($19/mo), those 800,000 bad requests are destroyed at the Edge in 1.3ms. Your $0–$10/mo origin server processes only the 200,000 real buyers without sweating.

[ 1,000,000 Incoming Edge Requests ]
├── 800,000 Bad Bots    ──► [ C++/WASM Edge Kernel ] ──► Instant 403 (1.3ms)
└── 200,000 Real Buyers  ──► [ GCP e2-micro Origin ]  ──► 200 OK (0.00% Bot CPU Load)

We are giving SMEs and developers the exact same high-speed, sub-millisecond protection that big corporations pay thousands for—at a price so low it makes legacy security pricing look absurd.

🛡️ Take Back Control of Your Infrastructure

Stop paying cloud providers for the computational energy consumed by bad bots. Keep your origin infrastructure minimal, fast, and dirt cheap.

📦 GitHub Repository: Bangsaen Filter Release v1.0.0
🔑 Claim Free Tier (100,000 Reqs/mo): Get Started Free

How much are you currently paying in hosting or WAF costs just to absorb threat traffic? Let’s talk architecture in the comments below!

How I Compiled C++ to WebAssembly on Cloudflare Edge to Kill Bots with 0.000ms Origin Overhead

Bangsaen AI — Thu, 23 Jul 2026 03:02:49 +0000

Every web service faces the same annoying issue: AI scrapers, automated brute-force bots, and bad actors eating up origin server CPU & RAM before they even get blocked.

Traditional middleware (like PHP or Node.js security plugins) still forces your origin host to execute code just to decide whether to drop a request. That’s wasted computing resources.

I wanted to solve this with a strict rule: Zero host CPU impact on the origin server.

Here is how I compiled a C++ kernel to WebAssembly (WASM) and deployed it directly to Cloudflare Global Edge.

🏗️ The Architecture

Instead of filtering traffic at the origin, the protection layer is pushed to Cloudflare’s 300+ Edge locations globally.

[ Incoming Request ]
│
▼
[ Cloudflare Global Edge ]
│ ──► [ C++ WASM Kernel Inspection ] ──► (Blocked if Bot)
▼
Your Origin Server

Why C++ WebAssembly on the Edge?

Ultra-Low Latency: Executing C++ compiled to WASM delivers sub-millisecond execution (0.000ms kernel impact).
Instant Dropping: Bad actors are terminated at the nearest edge node—never reaching your actual server stack.
Language Efficiency: C++ provides predictable memory usage and near-bare-metal speeds compared to standard V8 JavaScript isolates.

⚡ Try it with cURL

You can inspect the response directly from your terminal:

curl -X POST [https://bangsaen-bot-killer.bangsaen-filter.workers.dev](https://bangsaen-bot-killer.bangsaen-filter.workers.dev) \
  -H "x-bangsaen-key: YOUR_API_KEY"

Sample JSON Response:

{
"status": "Success",
"botDetected": false,
"score": "0.0000",
"executionTime": "0.000ms"
}

🔌 What's Next & Free Tier
I've made the API gateway available with a Free Tier (100,000 requests/month) so developers can offload scraper mitigation without paying a dime or using a credit card.

🌐 Live Demo & API Key: bangsaenai.com

🔌 WordPress Users: We have submitted the official Bangsaen Filter plugin to the WordPress.org directory—currently under manual review and scheduled to launch in ~5 days!

Would love to hear your thoughts on latency optimization and edge security architecture!

DEV Community: Bangsaen AI