Is Resend Safe?
Security analysis for apps built with Resend. Developer-first email API built for modern apps, with React Email integration.
We scanned Resend's website
Mar 6, 2026This is a scan of https://resend.com. Your app built with Resend may have different results.
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Scan Your Resend AppCommon Security Issues in Resend Apps
Exposed API Keys
AI coding tools often embed API keys directly in frontend JavaScript. If you're using Resend, check that secret keys aren't in your client-side bundle.
Missing Security Headers
Headers like Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options protect against XSS, clickjacking, and downgrade attacks.
Vulnerable Dependencies
Outdated npm packages with known CVEs are common in AI-generated code. Regular audits catch these before attackers do.
Authentication Weaknesses
Open registration endpoints, missing rate limiting, and exposed auth tokens are frequent issues in vibe-coded apps.
What ScanVibe Checks
Frequently Asked Questions
Is Resend safe to use?
Resend itself is a reputable platform, but apps built with Resend often have security misconfigurations — exposed API keys, missing security headers, and vulnerable dependencies. ScanVibe scans your app to find these issues.
What security issues do Resend apps commonly have?
The most common issues we find in Resend apps are: exposed API keys in frontend JavaScript, missing security headers (CSP, HSTS), outdated dependencies with known vulnerabilities, and misconfigured authentication endpoints.
How do I check if my Resend app is secure?
Enter your app's URL in ScanVibe's scanner. We'll check for exposed secrets, security headers, vulnerable libraries, exposed files, and platform-specific misconfigurations — all in about 30 seconds.
Does ScanVibe scan Resend specifically?
Yes. ScanVibe detects Resend in your stack and runs platform-specific security checks in addition to our standard 8-category analysis.