Launch Ready cyber security Checklist for automation-heavy service business: Ready for launch in marketplace products?.

What "ready" means for Launch Ready

For this product, "ready" does not mean "the site loads on my laptop." It means a marketplace product can accept traffic, send email, deploy safely, and survive the first real user spike without exposing secrets or breaking onboarding.

If I were self-assessing a launch, I would want these outcomes before I call it ready:

• Domain points to the right app and all old URLs redirect correctly.
• SSL is valid everywhere, including subdomains.
• Email deliverability is working with SPF, DKIM, and DMARC passing.
• No secrets are exposed in the repo, build logs, or frontend bundle.
• Production deploy is repeatable and rollback is possible.
• Cloudflare is protecting the app from basic abuse and DDoS noise.
• Uptime monitoring exists and alerts reach a real human.
• Critical user flows work on mobile and desktop.
• No auth bypasses, broken role checks, or public admin routes.
• The handover includes access, ownership, and a recovery path.

For marketplace products, the biggest launch risk is not design polish. It is failed email verification, broken redirects from marketplace listings, leaked environment variables, and downtime during the first paid traffic burst.

Quick Scorecard

| Check | Pass criteria | Why it matters | What breaks if it fails | |---|---|---|---| | Domain routing | Primary domain resolves correctly and old URLs 301 to the right place | Marketplace traffic lands where you expect | Lost signups, broken SEO, confused users | | SSL | Valid cert on root domain and subdomains | Prevents browser warnings and trust loss | Checkout drop-off, login failure | | DNS health | A/AAAA/CNAME records correct with no conflicts | Keeps email and app routing stable | Random outages, failed verification | | Email auth | SPF, DKIM, DMARC all pass | Improves inbox placement | Verification emails go to spam | | Secrets handling | Zero exposed secrets in repo or client bundle | Prevents account takeover and data theft | Breach risk, cost blowback | | Deployment safety | Production deploy works with rollback path | Reduces launch-day failure risk | Downtime during release | | Cloudflare setup | WAF/DDoS/cache rules active where needed | Filters noise and protects origin server | Slowdowns, bot abuse, origin overload | | Monitoring | Uptime checks plus alerting to email/SMS/Slack | Detects failures fast | You find outages from users first | | Access control | Admin routes locked down with least privilege | Stops unauthorized changes | Data exposure, destructive actions | | Handover quality | Docs cover env vars, domains, rollback, contacts | Lets founder operate without guessing | Support load spikes after launch |

The Checks I Would Run First

1. Domain and redirect integrity

• Signal: Root domain loads the app and every old URL returns the correct 301 redirect.
• Tool or method: Browser check plus `curl -I https://domain.com/path`.
• Fix path: Clean up DNS records, remove duplicate A/CNAME conflicts, map canonical URLs, then test marketplace listing links one by one.

2. SSL across all entry points

• Signal: No certificate warnings on root domain, www, app subdomain, admin subdomain if any.
• Tool or method: Browser lock icon check plus SSL Labs scan.
• Fix path: Issue certs for every live host name through Cloudflare or your host. If one subdomain is missing cert coverage now, it will fail later when you add more routes.

3. Email authentication

• Signal: SPF passes, DKIM signs mail correctly, DMARC aligns with your sending domain.
• Tool or method: Send a test email to Gmail and inspect headers; use MXToolbox or similar DNS checks.
• Fix path: Add the exact DNS records from your email provider. Do not guess here. One bad character in SPF can break deliverability for every signup email.

4. Secret exposure review

• Signal: No API keys in frontend code, Git history hits are clean enough for launch risk tolerance.
• Tool or method: Search repo for `sk_`, `pk_`, `api_key`, `secret`, `.env`, plus a secret scanner like Gitleaks.
• Fix path: Move secrets to server-side env vars only. Rotate anything already exposed. If a key was ever shipped to the browser bundle, treat it as compromised.

5. Production deployment sanity

• Signal: Fresh deploy succeeds from clean state in under 15 minutes with no manual patching on server.
• Tool or method: Re-run deploy from scratch using CI/CD or host dashboard; verify build logs and runtime logs.
• Fix path: Pin dependencies where needed, remove local-only assumptions, set environment variables explicitly per environment.

6. Monitoring and alerting

• Signal: A synthetic uptime check alerts within 2 minutes of failure.
• Tool or method: Use UptimeRobot, Better Stack, Pingdom, or similar to hit homepage plus one critical API route.
• Fix path: Add alerts for HTTP 500s, SSL expiry warnings at 14 days out as well as downtime. If nobody gets paged when the app dies at night, you do not have monitoring.

Red Flags That Need a Senior Engineer

1. You see secrets in the frontend bundle or public repo history

• This is not cosmetic. It can expose third-party accounts or internal APIs before launch.

2. The app has multiple environments but no clear config separation

• If staging can talk to production data by accident once today will happen again under pressure.

3. Marketplace traffic depends on fragile redirects

• One broken redirect chain can kill conversion from listings you paid to acquire.

4. There are auth roles but no tested permission matrix

• Broken authorization is how admin panels become public dashboards.

5. The team cannot explain rollback in one minute

• If a bad deploy happens during launch week and rollback is unclear you are buying downtime plus support chaos.

DIY Fixes You Can Do Today

1. Audit your DNS records

• Make sure there is one clear canonical domain.
• Remove duplicate records that point different hosts at the same name.
• Confirm marketplace listing URLs redirect to the final landing page.

2. Check your email sender setup

• Verify SPF includes only approved senders.
• Turn on DKIM signing in your mail provider dashboard.
• Set DMARC to at least `p=none` for visibility before tightening later.

3. Scan for exposed secrets

• Search your repo for keys and tokens now.
• Check recent commits and `.env` files before pushing anything else.
• Rotate any key that was copied into chat tools or screenshots.

4. Add a basic uptime check

• Monitor homepage plus one login or checkout endpoint every 5 minutes.
• Send alerts to at least two people if possible.
• Test that an alert actually arrives before launch day.

5. Lock down obvious admin surfaces

• Remove public access to admin routes unless they are truly needed.
• Require strong passwords and MFA where available.

```env # Example only NODE_ENV=production APP_URL=https://yourdomain.com NEXT_PUBLIC_APP_URL=https://yourdomain.com ```

Where Cyprian Takes Over

If you hit any of these failures while aiming for marketplace launch readiness:

• DNS confusion
• SSL issues across subdomains
• Email authentication problems
• Secret exposure risk
• Unclear production deployment
• Missing monitoring
• Weak handover documentation

That maps directly to Launch Ready.

1. DNS cleanup and routing

• Canonical domain setup
• Redirects for old URLs
• Subdomain mapping

2. Cloudflare hardening

• SSL enforcement
• Basic caching rules
• DDoS protection settings
• Safer edge configuration

3. Email deliverability setup

• SPF/DKIM/DMARC records
• Verification that mail passes authentication checks

4. Production deployment

• Environment variables set correctly
• Secrets moved out of unsafe places
• Production build verified

5. Monitoring and handover

• Uptime monitoring configured
• Alert route tested
• Handover checklist with access notes and next steps

My recommendation: buy this sprint if your product has any external traffic source already live or about to go live. For automation-heavy service businesses in marketplaces products especially; one broken redirect or bad email setup can waste paid traffic immediately.

A good launch target is simple:

• zero exposed secrets,
• SPF/DKIM/DMARC passing,
• p95 API latency under 500ms on critical endpoints,
• uptime alerts working,
• rollback documented,
• no critical auth bypasses.

References

1. Roadmap.sh Code Review Best Practices: https://roadmap.sh/code-review-best-practices 2. Roadmap.sh API Security Best Practices: https://roadmap.sh/api-security-best-practices 3. Roadmap.sh Cyber Security: https://roadmap.sh/cyber-security 4. Cloudflare Docs: https://developers.cloudflare.com/ 5. Google Postmaster Tools / Email sender guidelines: https://support.google.com/a/topic/2752442

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Take the next step

If this is a problem in your product right now, here is what to do next:

• [Use the free Cyprian tools](/tools) - estimate cost, score app risk, check launch readiness, or pick the right service sprint.

• [Book a discovery call](/contact) - I will tell you honestly whether you need a sprint or if you can DIY the next step.

*Written by Cyprian Tinashe Aarons - senior full-stack and AI engineer helping founders rescue, launch, automate, and scale AI-built products.*