Netlify Security Posture

A platform for building and deploying web applications.

Netlify Security Overview

Netlify provides automated HTTPS, but custom security headers require explicit configuration via a netlify.toml file or a _headers file in the publish directory.

Security Checks

HTTPS (pass)

Certificates are automatically provisioned and traffic is served over TLS.

Security Headers (warn)

Requires manual configuration of _headers or netlify.toml to enforce HSTS and CSP.

Branch Deploys (warn)

Branch and deploy previews are public by default unless site-wide password protection is configured.

Run a Security Audit

These technical checks are informational heuristics, not a guarantee of security or compliance. Passing a scan does not guarantee protection against zero-days or application logic flaws. Always conduct independent professional audits.

What an Automated Check Can Verify

A public scan can inspect the TLS certificate, DNS records, HTTP response headers, and JavaScript files that Netlify serves to an ordinary visitor. It can flag exposed secret patterns and missing defensive controls, but it cannot prove that an application is secure or inspect private source code, access policies, database rules, or authenticated workflows.

Manual Review Still Required

Review authentication and authorization paths, dependency and supply-chain alerts, server-side secret storage, logging, backups, and incident response separately. Validate every automated finding before changing production. Re-run the public scan after deployment because CDN behavior, environment configuration, and framework upgrades can change what users receive.