Security Scanning with DataJelly
Multi-layered protection for your site and your source code. Comprehensive security scanning for modern SPAs and front-end projects.
Why Security Scanning is Essential
Modern SPAs and front-end projects face unique security challenges. Unlike traditional server-rendered applications, SPAs expose more attack surface through client-side code, third-party dependencies, and complex build processes.
DataJelly is more than SEO optimization — it protects against some of the most common and dangerous vulnerabilities in modern web applications through two complementary modes:
Snapshot Security
Scans rendered HTML for exposed data, console errors, and misconfigured headers
Source Code Security
Runs full static analysis suite on your GitHub repositories
Multi-Layered Security Stack
Our security approach uses complementary tools that work together to provide comprehensive coverage. Each layer catches different types of vulnerabilities, ensuring nothing falls through the cracks.
Secret Scanning
Detect API keys, tokens, passwords, private keys, certs, database connection strings, and leaked cloud provider credentials (AWS, Azure, GCP).
Redundant by design — double coverage against the #1 cause of breaches.
Software Composition Analysis
Scans package.json and package-lock.json for known CVEs in npm packages. Analyzes container images for OS-level vulnerabilities.
Catches vulnerable dependencies like old lodash/express versions.
Custom Code Analysis
Semgrep finds Command Injection, XSS, SQL Injection, CSRF, hardcoded secrets. NodeJsScan catches Node-specific issues like prototype pollution and ReDoS patterns.
Comprehensive static analysis for modern JavaScript/TypeScript applications.
Snapshot Security Scans
Detect console errors in rendered pages, identify missing headers, broken links, and exposed data in HTML visible to bots.
Unique snapshot-based security analysis for SPAs.
Issues You Will Find
With this comprehensive toolchain, DataJelly can reliably uncover a wide range of security vulnerabilities:
What We Don't Cover (Transparency Matters)
Static analysis has limitations. Here's what our tools cannot detect, so you can plan additional security measures:
For these types of vulnerabilities, consider dynamic testing tools like OWASP ZAP, Burp Suite, or runtime monitoring solutions.
Common Issues We See in the Wild
Real-world examples of security vulnerabilities DataJelly discovers in production applications:
Hardcoded API Keys
API keys accidentally committed in frontend bundles
const API_KEY = 'sk-1234567890abcdef...';Committed Secrets
Old .env secrets committed by accident in git history
DATABASE_URL=postgres://user:pass@db.com/prodVulnerable Dependencies
Outdated npm libraries with critical CVEs
lodash@4.17.10 (CVE-2020-8203)Debug Logs
Debug logs leaking database names or tokens
console.log('DB: ', process.env.DATABASE_URL);Why This Matters
Hidden in Plain Sight
Security issues often hide in plain sight — bots, competitors, and attackers can see them too. What's visible to search engines is visible to threats.
Shift-Left Security
Catching vulnerabilities early in the development cycle is the most cost-effective way to secure applications. Prevention is always cheaper than remediation.
Dual-Purpose Platform
By combining SEO + Security scanning, DataJelly ensures your site is not only indexable but also safer for your users and your business.
Shift Security Left with DataJelly
Protect your snapshots, your code, and your users — all with zero extra setup.
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