SSL, DNS & Domains Vibe Code Cleanup

What AI and Quick Setup Get Wrong

Quick deployment platforms handle basic SSL - your site loads over HTTPS. But the configuration is minimal. No HSTS header, so browsers don’t enforce HTTPS on subsequent visits. No Content-Security-Policy, so there’s no browser-level XSS protection. No certificate monitoring, so you discover renewal failures from user complaints.

DNS is configured just enough to work. An A record or CNAME for the application. But email records are missing - no MX for receiving email, no SPF or DKIM for sending, no DMARC policy. Transactional emails go to spam. Customer password reset emails never arrive. The application “works” but communication doesn’t.

CDN configuration is either missing or default. Static assets aren’t cached at the edge. API responses aren’t compressed. There’s no geographic distribution for global users. The application loads slowly for users far from the server because every request travels the full distance.

Our SSL, DNS & Domain Cleanup

We start with SSL completeness. Certificate auto-renewal is verified working, not assumed. HSTS is configured with appropriate max-age. Certificate monitoring alerts well before expiration. For applications with multiple domains or subdomains, we verify certificate coverage for each.

DNS gets a complete configuration. Application records are verified. Email records are added and tested - SPF authorizes your sending services, DKIM signs outgoing email, DMARC defines policy for unauthorized sending. We verify email delivery actually works end-to-end.

CDN configuration optimizes delivery. Static assets get long-lived cache headers with cache-busted filenames. API responses get appropriate cache-control headers. Compression reduces transfer sizes. For global applications, geographic distribution puts content close to users.

Security headers receive particular attention because they represent the highest-impact, lowest-effort hardening available for any web application. We implement a strict Content-Security-Policy that whitelists only the script sources, style sources, and connection endpoints your application actually uses. This single header blocks the majority of cross-site scripting attack vectors. Permissions-Policy restricts browser feature access - disabling camera, microphone, and geolocation APIs that your application never uses prevents malicious scripts from exploiting them. Referrer-Policy controls what information leaks to third parties when users navigate away. X-Content-Type-Options prevents MIME-sniffing attacks. Each header is tuned to your application’s specific requirements rather than copied from a generic template, because overly broad policies break functionality while overly permissive ones provide no protection.

Before and After

Before: HTTPS works but security headers are missing. Email goes to spam because DNS lacks SPF and DKIM. No certificate monitoring. No CDN - every request hits the origin server. The site loads but isn’t secure, reliable, or fast.

After: HTTPS with full security headers scoring A+ on Mozilla Observatory. Email delivered reliably with proper authentication. Certificate monitoring with 30-day advance alerts. CDN distributing content globally with proper caching. The invisible infrastructure is complete and monitored.