Your biggest security threat isn't malware YouTube hotspots trust .
It's your students attempting to bypass your filter.
Proxy bypass now generates 7x more blocked activity than malware across K–12 networks — and it’s creating the cover attackers need.
Is your security posture built for the threat landscape you have?
Real-world data shows how frequently students probe, bypass, and redeploy around filtering systems.
The volume of bypass traffic has outpaced every other threat category.
Scanners and network utility tools used to test network boundarie
The same threats redeploying under new addresses to avoid detection.
Multi-Layer Bypass Prevention Across Every Attack Path
Bypass attempts don’t rely on a single method. Protection shouldn’t either. This approach reduces reliance on any single control, closing gaps attackers and students exploit.
Real-Time Proxy Detection and Blocking
When a student loads a proxy bypass site, Lightspeed Filter™ detects and blocks it by analyzing what’s executing in the browser, including tunneling methods, JavaScript behavior, and proxy libraries like Ultraviolet, Scramjet, and Rammerhead. These signals are evaluated in real time, with blocking triggered when thresholds are met and re-scanning to catch mid-session evasion, stopping bypass attempts that URL and text-based filtering miss.
How it works
01
Inspection
When a user accesses a page, the system analyzes the load in real time, evaluating DOM structure, network activity, and JavaScript execution. It detects proxy frameworks, tunneling methods, and hidden behaviors, including tools like Ultraviolet and Rammerhead.
02
Scoring
Each signal contributes to a weighted score. High-confidence indicators trigger immediate detection, while lower-confidence signals accumulate until a threshold is reached.
03
On-going scanning
The page is monitored throughout the session. If behavior changes or new scripts execute, signals are re-scored in real time to catch delayed or dynamic evasion techniques.
04
Feedback
Once thresholds are met, the system blocks or logs activity based on policy. All detections feed back into the model, with confirmed sites recategorized to strengthen protection across the platform.
Common Bypass Methods and How They're Stopped
Students use a range of methods to bypass filtering, from proxy tools to browser exploits. Here’s what those tactics look like and how Lightspeed stops them.
| The Bypass Problem | What It Looks Like | How Lightspeed Solves It |
|---|---|---|
| Game aggregators | Sites with tiled game libraries, embedded launchers, and unblocked access points to games and apps | Detects aggregator patterns and libraries like Ruffle, Nebula, and Interstellar, blocking access in real time |
| Top-level domains | Newly registered or obscure domains used to host proxy tools or evade categorization | Applies dynamic categorization and blocks risky or uncategorized domains by default |
| Extension-less Chrome sessions | Students use tricks like GitHub SSO to open a Chrome window that doesn't load extensions | Routes traffic through cloud proxy, identifies proxy behavior even without extensions, and enforces filtering |
| Google Sites | Student-created or shared Google Sites used to host proxy links or embedded bypass tools | Inspects page behavior and embedded content to detect and block proxy activity |
| Unsafe search sites | Sites that provide links to proxies, unblocked content, or ways to bypass restrictions | Uses category-based blocking and real-time detection to restrict access to unsafe search platforms |
| Domain sharing sites | Platforms where users upload or share proxy links and bypass tools | Identifies and blocks known sharing platforms and detects proxy behavior within shared content |
Coverage That Fits Your Environment
Tune detection to match your policies, your users, and your risk tolerance.
Always-on Detection
Detection runs across all categories, allowing blocking to be adjusted without losing visibility into bypass attempts.
Per-Policy Sensitivity Control
Set detection sensitivity by policy. Choose "Relaxed" "Normal" or "Strict" for different user groups, grade levels, or staff.
Coverage for Known Proxy Frameworks
Detects widely used proxy tools such as Ultraviolet, Scramjet, and Rammerhead, regardless of where they appear. No dependency on domain or URL matching.
Game Aggregator Detection
Identifies sites used to access unblocked games and apps. Detects libraries like Ruffle, Nebula, and Interstellar, along with common aggregator patterns, using the same detection engine and policy controls
Approved Tool Exceptions
Combine allow lists and local recategorization to manage approved tools, excluding trusted platforms from blocking while maintaining detection.
How Does Your Filter Stack Up?
Not all filters catch the same threats. Here’s how the approaches compare.
| Capability | Lightspeed | Linewize | Deledao | GoGuardian | Securly |
|---|---|---|---|---|---|
| Live intelligence: bypass detection | Full coverageProxies + game aggregators; behavior-based | Partial coverageProxies only; text/content scan only | Partial coverageProxies + games; text/content scan only | Partial coverageProxies only; text/content scan only | No coverage |
| Blocking sensitivity control with always-on detection | Full coverageRelaxed / Normal / Strict; detection runs independent | No coverage | No coverage | No coverage | No coverage |
| Zero-day threat protection | Full coverage | Full coverage | Partial coverageAI on-device only | Full coverage | Full coverage |
| Granular security categorization | Full coverage | Full coverage | Partial coverageAI on-device only | Partial coverageLess granular; categorizes proxies | Partial coverageLess granular; categorizes proxies |
| ChromeOS app & device protection | Full coverage | Partial coverageOn-network only | No coverage | No coverage | No coverage |
| On-device, tamper resistant agents | Full coverage | Partial coverageVPN-based; performance impact | Partial coverageChrome-based only | Full coverage | Partial coverageSmartPAC proxy only; no native agent |
your custom report
See what's getting through your filter right now
Run a proof of concept with your network. We’ll show you exactly what bypass activity looks like in your environment, and what your current filter isn’t catching.
- No commitment required
- Results typically ready within one week of setup
- Includes a walkthrough with your account executive
We’ll reach out to set up your POC. No spam, no pressure.
See what your filter is missing
Most filters tell you what they blocked. Yours won’t tell you what got through. A Lightspeed POC gives you visibility into bypass activity on your own network — using your data.
| Detection method | URL filtering | Lightspeed |
|---|---|---|
| Known proxy domains | ✓ | ✓ |
| Newly generated proxy hostnames | ✗ | ✓ |
| Ultraviolet / Scramjet / Rammerhead | ✗ | ✓ |
| Mid-session evasion & re-routing | ✗ | ✓ |
| Game aggregator libraries | Partial | ✓ |
| Off-network / BYOD devices | ✗ | ✓ |
