Security Analysis

Is Netlify Safe?

An honest security analysis of Netlify for developers considering it for their projects.

Quick Answer

Safe - configure headers properly

Netlify is safe for production with good security practices. Configure environment variables carefully and set up proper security headers.

Security Assessment

Security Strengths

  • Automatic HTTPS
  • CDN-level DDoS protection
  • Environment variable management
  • Deploy previews with access control

Security Concerns

  • Build-time vs runtime env var confusion
  • Functions need security attention
  • Headers require _headers file setup
  • Form handling spam considerations

Security Checklist for Netlify

  • 1
    Configure _headers file for security
  • 2
    Use environment variables properly
  • 3
    Secure Netlify Functions
  • 4
    Set up form spam protection
  • 5
    Review deploy preview access
  • 6
    Scan deployed site for issues

The Verdict

Netlify is secure when configured properly. Pay attention to security headers and environment variable handling.

Security Research & Industry Data

Understanding Netlify security in the context of broader industry trends and research.

10.3%

of Lovable applications (170 out of 1,645) had exposed user data in the CVE-2025-48757 incident

Source: CVE-2025-48757 security advisory

4.45 million USD

average cost of a data breach in 2023

Source: IBM Cost of a Data Breach Report 2023

500,000+

developers using vibe coding platforms like Lovable, Bolt, and Replit

Source: Combined platform statistics 2024-2025

What Security Experts Say

Vibe coding your way to a production codebase is clearly risky. Most of the work we do as software engineers involves evolving existing systems, where the quality and understandability of the underlying code is crucial.

Simon WillisonSecurity Researcher, Django Co-creator

The problem with AI-generated code isn't that it doesn't work - it's that it works just well enough to ship, but contains subtle security flaws that are hard to spot.

Security Research CommunityCollective wisdom from security researchers

Verify Your Netlify App Security

Don't guess - scan your app and know for certain. VAS checks for all the common security issues in Netlify applications.