Launch Ready cyber security Checklist for founder landing page: Ready for handover to a small team in AI tool startups?.

Launch Ready cyber security Checklist for founder landing page

"Ready" for a founder landing page in an AI tool startup does not mean "it loads on my laptop." It means a small team can take over without exposing customer data, breaking email delivery, or losing the domain on day one.

For this product and outcome, I would call it ready when these are true:

• The domain is controlled by the right registrar account and protected with 2FA.
• DNS is documented, clean, and points only where it should.
• Cloudflare is in front of the site with SSL enforced and no mixed content.
• No secrets are hardcoded in the frontend, repo, or deployment logs.
• SPF, DKIM, and DMARC all pass for the sending domain.
• Uptime monitoring is live and alerts go to a real inbox or Slack channel.
• Redirects, subdomains, and production deploys are tested after handover.
• A small team can change content without breaking security or email deliverability.

If any of those fail, the business risk is not abstract. It means lost leads, broken signup forms, spam-folder emails, downtime during ads, support load from confused users, and a handover that looks finished but is not safe to run.

Quick Scorecard

| Check | Pass criteria | Why it matters | What breaks if it fails | | --- | --- | --- | --- | | Domain ownership | Registrar access is in founder control with 2FA enabled | Prevents lockout and hijack risk | Site takeover, DNS changes blocked | | DNS records | Only required A, CNAME, MX, TXT records exist and are documented | Reduces misroutes and accidental exposure | Broken site, failed email delivery | | SSL/TLS | HTTPS enforced with valid cert and no mixed content | Protects trust and login/signup traffic | Browser warnings, lower conversion | | Cloudflare setup | Proxy on critical records with WAF/DDoS protection enabled | Cuts attack surface on launch day | Bot abuse, downtime spikes | | Secrets handling | Zero exposed secrets in repo, frontend bundle, logs, or env docs | Stops token theft and account abuse | Data leaks, API fraud | | Email auth | SPF, DKIM, DMARC all pass for sending domain | Keeps outbound mail out of spam | Missed leads and onboarding emails | | Redirects | www/non-www and old URLs redirect once only | Preserves SEO and avoids loops | Lost traffic, broken tracking | | Subdomains | Each subdomain has an owner and purpose documented | Prevents shadow IT and stale endpoints | Exposed admin panels or test apps | | Deployment safety | Production deploy uses separate env vars and least privilege access | Limits blast radius during release | Accidental outage or secret leak | | Monitoring | Uptime alerting exists with response owner named | Detects issues before ad spend burns money | Slow outage discovery and lost revenue |

The Checks I Would Run First

1. Domain control and registrar security

Signal: I want to see who owns the registrar account, whether 2FA is on, and whether transfer lock is enabled. If the answer is fuzzy or depends on one contractor's login, that is a problem.

Tool or method: Registrar dashboard review plus a written ownership check. I also verify recovery email addresses and backup codes.

Fix path: Move ownership into the founder's business account first. Then enable 2FA, transfer lock, and remove any unused users. This takes less than 1 hour when the paperwork is clear.

2. DNS hygiene and record review

Signal: I look for stale A records, random TXT records from old tools, duplicate MX entries, wildcard subdomains with no purpose, and anything pointing at dead infrastructure. Bad DNS often looks harmless until traffic starts hitting it.

Tool or method: DNS zone export plus a simple record inventory. I compare live records against what the site actually needs.

Fix path: Keep only required records for web hosting, email authentication, verification tokens, and known subdomains. Everything else gets removed or documented. This reduces accidental exposure fast.

3. Secret exposure scan

Signal: I check whether API keys appear in Git history, frontend bundles, environment files committed by mistake, deployment logs, or pasted docs. For AI tool startups this matters because third-party APIs are often expensive to abuse.

Tool or method: Secret scanning in GitHub/GitLab plus manual search for common patterns like `sk_`, `pk_`, service account JSON files, webhook secrets, and JWT signing keys.

Fix path: Rotate anything exposed immediately. Move secrets into platform environment variables or secret managers. Never ship production keys into browser code.

4. Email authentication alignment

Signal: I test whether SPF includes the correct sender only once maximum lookup limits are respected; DKIM signs outgoing mail; DMARC policy exists with reporting turned on. If lead capture emails land in spam or never arrive at all that is usually why.

Tool or method: MXToolbox-style checks plus a live test send to Gmail and Outlook.

Fix path: Publish one clean SPF record per domain setup. Enable DKIM signing in your email provider. Start DMARC at `p=none`, then move to `quarantine` after reports look clean.

Example config:

v=spf1 include:_spf.google.com include:sendgrid.net -all

5. Cloudflare edge protection

Signal: I verify that DNS proxying is active where needed, SSL mode is not "Flexible," HSTS is set carefully if appropriate, caching rules do not cache private pages by accident, and DDoS protection is actually on.

Tool or method: Cloudflare dashboard review plus browser devtools to inspect headers like `cf-cache-status`, `strict-transport-security`, and redirect behavior.

Fix path: Put the site behind Cloudflare correctly before launch traffic starts. Enforce HTTPS end-to-end. Add basic WAF rules for obvious bot patterns if signup forms are public-facing.

6. Monitoring and incident visibility

Signal: I want at least one uptime monitor hitting the homepage every minute with alerts going to someone who will respond within 15 minutes during business hours. If nobody sees an outage until a founder checks Twitter ads performance later that day you are already losing money.

Tool or method: UptimeRobot-style probe plus synthetic checks for homepage load and form submission success.

Fix path: Set alerts for downtime plus SSL expiry plus DNS failure. Add a shared incident note with owner names so a small team knows who acts first.

Red Flags That Need a Senior Engineer

• You have no idea where the domain was bought or who controls renewal billing.
• The site works in production but email from your own domain goes to spam.
• Someone says "the secrets are hidden in Vercel" as if that counts as security.
• There are multiple environments but no clear separation between test data and production data.
• The landing page includes third-party scripts you do not recognize but nobody can explain what they do.

These are not cosmetic issues. They create launch delays because they take longer than expected to untangle safely. They also create business damage if you push ads before fixing them because every broken form submission becomes wasted spend.

DIY Fixes You Can Do Today

1. Turn on 2FA everywhere

Do this on registrar accounts, Cloudflare, hosting platforms, Git providers, email providers under 30 minutes total if you already have access. Use app-based 2FA instead of SMS where possible.

2. Inventory every external service

Make a list of your domain registrar accounts today plus hosting plus email plus analytics plus form tools plus AI APIs. If you cannot name it you cannot secure it.

3. Rotate obvious exposed keys

Search your repo for keys now then rotate anything public immediately. If you suspect exposure but are not sure treat it as compromised anyway because that is cheaper than waiting for abuse.

4. Check your mail auth status

Send a test email from your domain to Gmail then inspect authentication results in the message headers. You want SPF pass plus DKIM pass plus DMARC pass before launch traffic starts.

5. Remove unnecessary scripts

Delete unused chat widgets tracking pixels old analytics tags demo embeds from landing pages today unless they directly support conversion tracking because each script adds risk latency or both.

Where Cyprian Takes Over

When these checks fail in more than one area I would not recommend piecemeal fixes by a busy founder team.

Here is how I map failures to deliverables:

| Failure found | What I do in Launch Ready | Timeline | | --- | --- | --- | | Domain ownership unclear | Verify registrar access transfer control add 2FA document recovery paths | Hours 1-4 | | DNS messy or undocumented | Clean zone file fix redirects subdomains MX TXT records document final state | Hours 1-8 | | SSL broken or mixed content present | Force HTTPS validate cert chain fix asset URLs confirm no browser warnings | Hours 4-10 | | Secrets exposed or unmanaged | Locate rotate move secrets into environment variables remove unsafe copies from repo/docs/logs | Hours 6-18 | | Email deliverability failing | Configure SPF DKIM DMARC test inbox placement confirm sender alignment | Hours 8-20 | | Cloudflare missing or misused | Set proxy SSL caching DDoS protection basic WAF rules safely optimize edge behavior | Hours 10-24 | | Deployment risky for small team handovered? yes maybe we need better wording but keep concise |

I would finish with production deployment validation uptime monitoring turned on a handover checklist written for non-engineers and a short owner map so the team knows what can be changed without breaking launch integrity.

The point of buying this instead of DIY is speed with fewer mistakes. A founder landing page should be boring after handover: no secret leaks no email surprises no mysterious outages just a site that can survive traffic from ads partners press demos and early customers.

A good target after handover is simple:

• Zero exposed secrets
• SPF/DKIM/DMARC passing
• HTTPS enforced
• Homepage LCP under 2.5 seconds on mobile
• Uptime alerts active
• No critical auth bypasses because there should be no admin surface exposed publicly unless explicitly intended

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 roadmap: https://roadmap.sh/cyber-security
• Cloudflare SSL/TLS documentation: https://developers.cloudflare.com/ssl/
• Google Workspace email authentication help: https://support.google.com/a/topic/2752442

---

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.*