Launch Ready cyber security Checklist for automation-heavy service business: Ready for scaling past prototype traffic in marketplace products?.

What "ready" means for an automation-heavy marketplace product

For this kind of product, "ready" does not mean "the site loads" or "the automations work on my laptop". It means a stranger can hit your marketplace, sign up, trigger workflows, and trust that their data, payments, and emails are handled without leaks, outages, or broken handoffs.

I would call it ready only if these are true:

• No exposed secrets in code, logs, or browser bundles.
• Domain, email, SSL, and redirects are correct across the full customer journey.
• Cloudflare is protecting the app from basic abuse and traffic spikes.
• Production deploys are repeatable and reversible.
• Monitoring tells you when the system is failing before customers do.
• Core pages load fast enough to convert. A good target is LCP under 2.5s on mobile.
• Critical API paths stay stable under prototype-to-real traffic growth. I want p95 under 500ms for core requests.
• SPF, DKIM, and DMARC all pass for outbound email.
• Auth has no obvious bypasses, broken access control, or public admin surfaces.
• You have a handover checklist so support does not become tribal knowledge.

If you cannot say yes to most of that, you are not scaling past prototype traffic yet. You are still one bug report away from support chaos, lost trust, or wasted ad spend.

Quick Scorecard

| Check | Pass criteria | Why it matters | What breaks if it fails | |---|---|---|---| | Domain ownership | Registrar access secured and DNS documented | Prevents accidental lockout and hijack risk | Site outage, domain loss | | SSL everywhere | HTTPS enforced with no mixed content | Protects logins and sessions | Browser warnings, dropped trust | | Redirects | Canonical www/non-www and http to https work | Avoids SEO split and duplicate pages | Lower ranking, broken links | | Email auth | SPF, DKIM, DMARC pass | Stops spoofing and improves deliverability | Emails land in spam or get rejected | | Secrets handling | Zero secrets in repo or frontend bundle | Stops credential theft | Data exposure, account takeover | | Cloudflare protection | WAF/rate limiting/DDoS enabled | Reduces bot abuse and simple attacks | Downtime, scraping, signup abuse | | Deployment safety | Production deploy is repeatable with rollback path | Limits release mistakes | Broken release blocks revenue | | Monitoring | Uptime + error alerts active within 5 minutes | Detects failures early | Silent outages and support overload | | Access control | Admin routes locked down with least privilege | Protects sensitive actions and data | Fraud, data leakage | | Performance baseline | LCP under 2.5s; p95 API under 500ms on core flows | Conversion and reliability under load depend on it | Drop-off, timeouts, churn |

The Checks I Would Run First

1. Public exposure scan

Signal: I look for secrets in Git history, environment files committed by mistake, public admin URLs, debug endpoints, exposed storage buckets, and API keys in frontend code.

Tool or method: I check the repo history with secret scanning tools like Gitleaks or TruffleHog. I also inspect browser bundles and network calls in DevTools to see what the client can read.

Fix path: Remove the secret from source control immediately, rotate it everywhere it was used, then move credentials into server-side environment variables or a secret manager. If a key was exposed publicly even once, I treat it as compromised.

2. Authentication and authorization review

Signal: I test whether a normal user can reach admin functions by changing URLs, IDs, roles, or request payloads. In marketplace products this often shows up as viewing another seller's listings or another buyer's orders.

Tool or method: I use manual request replay in Postman or Burp Suite plus role-based test accounts. I specifically test direct object access patterns like `/orders/123` and any internal admin APIs.

Fix path: Enforce authorization on every sensitive endpoint server-side. Do not trust hidden UI elements or client-side role checks.

3. Email trust chain check

Signal: Outbound emails fail SPF/DKIM/DMARC alignment or come from inconsistent sender domains. This usually shows up as password resets landing in spam or transactional emails being blocked.

Tool or method: I inspect DNS records with MXToolbox or similar checks and send test mail to Gmail and Outlook to verify headers.

Fix path: Set SPF to include only approved senders. Turn on DKIM signing through your email provider. Start DMARC at `p=none`, then move toward quarantine/reject once delivery is stable.

v=DMARC1; p=quarantine; rua=mailto:dmarc@yourdomain.com; adkim=s; aspf=s

4. Cloudflare edge protection check

Signal: The app is open to bot traffic, signup abuse, brute force attempts, or basic DDoS noise because nothing sits in front of origin.

Tool or method: I review Cloudflare settings for proxy status, WAF rules, rate limits on auth endpoints, bot protections where available, and page rules for redirects/caching.

Fix path: Put the app behind Cloudflare proxy mode. Add rate limits to login, password reset, invite creation, checkout initiation, and webhook endpoints. Block obvious bad geographies only if business needs allow it.

5. Deployment repeatability check

Signal: A production deploy requires manual clicking in five places or one person's memory to complete safely.

Tool or method: I read the deployment pipeline end-to-end: build step,, env injection,, migrations,, health checks,, rollback behavior,, and who can approve releases.

Fix path: Make deployment boring. One command or one pipeline should produce the same result every time. If a migration can break production without rollback planning,, that is a launch blocker.

6. Monitoring and incident visibility check

Signal: You only learn about failures from customers,, Slack complaints,, or refund requests.

Tool or method: I verify uptime monitoring,, error tracking,, log retention,, alert routing,, and whether alerts fire within 5 minutes of failure.

Fix path: Add uptime monitors for homepage,, login,, checkout,, API health,, webhook delivery,, and email sending. Route critical alerts to at least two people so one missed notification does not hide an outage.

Red Flags That Need a Senior Engineer

These are the signs that DIY will cost more than buying the service:

1. You have already leaked a secret once.

• Rotation is not optional.
• If you do not know where the key was used,, you need someone who can trace blast radius fast.

2. Marketplace permissions are unclear.

• If buyers can see seller data,,, sellers can edit other sellers' content,,, or admins rely on front-end checks,,, you have an access control problem,, not a UI issue.

3. Email deliverability is unstable.

• If password resets,,, invites,,, receipts,,,or notifications fail intermittently,,, support load grows fast.
• In marketplace products,,, bad email means failed onboarding and lost transactions.

4. Deployments feel risky every time.

• If each release causes fear of downtime,,,, duplicated jobs,,,,or broken webhooks,,, your process is too fragile for scale.
• A senior engineer will reduce change risk before traffic grows past prototype levels.

5. You cannot explain your incident path in one minute.

• If nobody knows who gets paged,,,, what gets checked first,,,,or how rollback works,,, you are not operationally ready.
• That gap becomes expensive when paid acquisition starts driving real volume.

DIY Fixes You Can Do Today

Before contacting Cyprian,,,, you can reduce risk with these five moves:

1. Rotate any credential that has ever been pasted into chat,,,, tickets,,,,or code comments.

• Start with database,,,, email provider,,,,Cloudflare,,,,and payment keys.
• Assume anything shared outside a secret manager is compromised.

2. Turn on HTTPS enforcement everywhere.

• Force redirect all `http` traffic to `https`.
• Check for mixed content on images,,,, scripts,,,,and fonts because browsers will block them unpredictably.

3. Review DNS records line by line,.

• Confirm A/CNAME records point where they should.
• Remove stale subdomains that expose old apps,,,, staging tools,,,,or vendor dashboards.

4.. Test your top three user journeys manually on mobile..

• Sign up,,, log in,,, reset password,,, create listing,,, send message,,, make payment.
• If any step takes more than a few seconds longer than expected,,, note it now before ads amplify the problem..

5.. Set up basic uptime monitoring today..

• Monitor homepage,,, auth endpoint,,, API health endpoint,,,and webhook receiver if you have one..
• Send alerts by email plus Slack so failures do not sit unnoticed overnight..

Where Cyprian Takes Over

This service is built for exactly the gap between "prototype works" and "production can handle real traffic".

| Failure found during checklist | Launch Ready deliverable | |---|---| | Domain misconfigured || DNS cleanup,, redirects,, subdomain setup | | Email failing || SPF/DKIM/DMARC setup with sender verification | | App exposed directly || Cloudflare proxying,, SSL enforcement,, DDoS protection | | Slow page loads || Caching config plus edge optimization guidance | | Secrets scattered || Environment variables audit plus secret handling cleanup | | No production discipline || Production deployment setup plus handover checklist | | No visibility || Uptime monitoring plus alert routing |

My approach is simple: fix external trust first,,,, then reduce operational risk,,,, then hand over a system you can actually scale from.. That means no guesswork about domain ownership,,, no broken email reputation,,, no naked origin server sitting behind your brand,. It also means you get a clear handover list instead of another pile of half-documented settings..

A realistic 48-hour flow looks like this:

1.. Hour 0-8: Audit

• Domain,,,, DNS,,,, email,,,,Cloudflare,,,,deployment surface,,,,and secrets review..

2.. Hour 8-24: Fix critical exposure

• SSL forces,.. redirect rules,.. email authentication,.. rate limits,.. secret cleanup..

3.. Hour 24-36: Production hardening

• Caching,.. monitoring,.. uptime alerts,.. rollback checks,.. handover notes..

4.. Hour 36-48: Verification

• Test signups,.. logins,.. emails,.. mobile flow,.. admin access,.. final checklist..

If this product has marketplace payments or user-generated content,. I would be even stricter about authorization tests,. webhook validation,.and logging hygiene,. because those are common places where prototype systems leak data or double-process actions..

Delivery Map

References

• roadmap.sh: Code Review Best Practices https://roadmap.sh/code-review-best-practices
• roadmap.sh: API Security Best Practices https://roadmap.sh/api-security-best-practices
• roadmap.sh: Cyber Security https://roadmap.sh/cyber-security
• Cloudflare docs: https://developers.cloudflare.com/
• OWASP Top 10: https://owasp.org/www-project-top-ten/

---

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.*