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Scanner explainers, launch checklists, and fix-first guidance for founders and operators. Written for SEO and answer engines with direct answers up front.
DMARC, SPF, and DKIM are the three DNS records that stop email spoofing on your domain. Here is what each one does and how to check them.
Read postCheck if your domain can be spoofed by reviewing DMARC, SPF, and DKIM on your live domain. RedScore runs that outside-in email auth check in about 60 seconds.
Read postRun this startup security checklist on your production domain before your first customer signs up. Public TLS, headers, DNS, and email auth in about 60 seconds.
Read postUse this vendor security review checklist to evaluate a supplier's public security posture before signing. TLS, headers, DNS, and email auth in about 60 seconds.
Read postRun this website security scan checklist on your production domain before launch. TLS, headers, DNS, email auth, and exposure in about 60 seconds.
Read postA DMARC checker reads your public DMARC DNS record and checks whether your domain enforces email authentication or just monitors failures.
Read postFirebase app security starts on your public domain: TLS, headers, DNS, email auth, exposure. This checklist runs in about 60 seconds, no console access.
Read postVerify Next.js security headers on production, not in your config files. HSTS, CSP, cookies, and related signals from an outside-in scan.
Read postShipped with Cursor, Lovable, or Bolt? Run this vibe-coded app security checklist on your production domain before demos, payments, or user data.
Read postA Supabase security scanner checks public signals on the domain your app runs on. TLS, headers, DNS, email auth, exposure. Not RLS or database rules.
Read postA Vercel security scanner checks the public signals on your live domain: TLS, headers, DNS, email auth, and exposure. No repo access required.
Read postRun this WordPress security scan checklist on your live domain first: TLS, headers, DNS, email auth, exposure, reputation. No plugin install.
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