Launch Ready cyber security Checklist for founder landing page: Ready for customer onboarding in B2B service businesses?.

Launch Ready cyber security Checklist for founder landing page: Ready for customer onboarding in B2B service businesses?

"Ready" means a stranger can land on your page, trust the brand, submit their details, and start onboarding without your site leaking data, breaking email delivery, or exposing admin access. For a B2B service business, that means the landing page is not just "live", it is safe to collect leads, route them correctly, and survive normal internet abuse.

If I were auditing this for a founder, I would define ready as: no exposed secrets, SSL enforced everywhere, Cloudflare in front of the site, SPF/DKIM/DMARC passing, forms protected from spam and abuse, redirects working cleanly, uptime monitored, and no obvious way for an attacker to hijack the onboarding flow. If any of those fail, you do not have a customer onboarding system yet. You have a public liability.

Launch Ready is built for exactly this gap.

Quick Scorecard

| Check | Pass criteria | Why it matters | What breaks if it fails | |---|---|---|---| | HTTPS everywhere | All pages force SSL with no mixed content | Prevents interception and browser warnings | Trust drops, forms may fail, SEO suffers | | Domain and DNS | Root domain and www resolve correctly | Avoids broken traffic paths | Lost leads and confusing brand experience | | Redirects | 301 redirects are intentional and tested | Protects SEO and user flow | Duplicate pages, broken onboarding links | | Cloudflare active | Site sits behind Cloudflare with WAF/DDoS protection | Reduces attack surface | Higher outage risk and noisy bot traffic | | Email auth passes | SPF, DKIM, DMARC all pass | Makes onboarding emails deliverable | Emails land in spam or get rejected | | Secrets hidden | Zero exposed API keys or tokens in client code or repo | Prevents account takeover and data theft | Billing abuse, unauthorized access | | Forms protected | Honeypot or CAPTCHA plus rate limiting enabled | Stops spam and brute force abuse | Fake leads flood CRM and support | | Monitoring live | Uptime alerts notify within 5 minutes of outage | Cuts time-to-detect during launch week | You find out from customers first | | Safe deployment | Production build uses environment variables only | Keeps config out of codebase leaks | Secrets get committed or shipped to browser | | Handover complete | Owner has checklist for DNS, email, deploys, rollback | Prevents dependency on one person forever | Launch stalls when something changes |

A simple target I use: zero exposed secrets, SPF/DKIM/DMARC passing on first test send, HTTPS enforced on 100 percent of routes, and homepage load under 2.5 seconds on mobile. If you cannot hit those basics before asking people to onboard, the site is not ready.

The Checks I Would Run First

1. Can an attacker see anything sensitive in the frontend? Signal: I inspect the built site source code, browser network requests, public repo history if available, and environment files for API keys, private URLs, webhook tokens, or admin endpoints.

Tool or method: Chrome DevTools, `grep` through build output, GitHub search for leaked strings, secret scanning with tools like TruffleHog or GitHub secret scanning.

Fix path: Move all secrets to server-side environment variables. Rotate anything already exposed. If a key touched the browser bundle once, assume it is compromised.

2. Is every request forced through HTTPS with no mixed content? Signal: The site loads with a padlock on first visit and there are no HTTP assets in scripts, images, fonts, or embedded widgets.

Tool or method: Browser devtools console checks plus SSL Labs test. I also look for mixed-content warnings in production logs.

Fix path: Force HTTPS at the edge through Cloudflare. Update asset URLs to `https://`. Add HSTS after verifying all subdomains are clean.

Strict-Transport-Security: max-age=31536000; includeSubDomains; preload

Use HSTS only after you are sure every subdomain supports HTTPS. If you set it too early and miss one host name you can lock yourself into an outage.

3. Are SPF/DKIM/DMARC configured so onboarding email actually arrives? Signal: Test emails from your domain pass authentication checks and do not land in spam on Gmail and Outlook.

Tool or method: MXToolbox checks plus real inbox testing from two providers. I verify DMARC policy reports if available.

Fix path: Publish correct SPF records for your mail provider. Turn on DKIM signing. Start DMARC at `p=none`, then move to `quarantine` or `reject` after validation.

4. Can forms be abused at scale? Signal: A form can be submitted repeatedly by bots without friction or rate limits. You see duplicate leads or fake submissions within minutes.

Tool or method: Manual repeat submissions from multiple IPs via browser tools or simple scripts. Review CRM entries for patterns like random names and disposable emails.

Fix path: Add rate limiting at the edge or backend. Use honeypots plus CAPTCHA where needed. Validate email format server-side and reject obvious junk before it hits your CRM.

5. Is Cloudflare actually protecting the origin? Signal: The origin server IP is hidden from public DNS records and direct hits to origin are blocked.

Tool or method: DNS lookup checks plus direct IP tests from a separate network. Review firewall rules on the hosting provider.

Fix path: Proxy all public records through Cloudflare orange-cloud mode where appropriate. Lock down origin firewall rules so only Cloudflare can reach it.

6. Do you know when the site is down before customers tell you? Signal: Uptime checks alert within 5 minutes of downtime or SSL failure. Error logs are visible enough to diagnose launch issues quickly.

Tool or method: UptimeRobot or similar synthetic monitoring against homepage and form endpoints. Confirm alert routing to email and Slack.

Fix path: Monitor homepage availability plus one critical onboarding route such as `/contact` or `/book`. Add error logging with enough context to trace failed submissions without storing personal data unnecessarily.

Red Flags That Need a Senior Engineer

1. Your landing page handles lead capture but nobody can explain where form data goes after submission. That is how lost leads happen during launch week.

2. You have multiple tools stitched together by no-code automations but no one owns retries or failure handling. One broken webhook can silently stop onboarding for days.

3. The site was built fast in Lovable, Bolt, Cursor, Webflow custom code blocks, or similar tools and now contains copied snippets from different sources. That often means hidden security holes in auth-free endpoints and third-party embeds.

4. You need custom redirects across root domain changes like `.com` to `.co.uk`, multi-subdomain routing, or old campaign URLs. Bad redirect logic hurts SEO and sends users into loops that kill conversion.

5. The page looks fine but email deliverability is inconsistent across providers. If Gmail works but Outlook fails half the time while sales outreach depends on it, you need someone who understands DNS records instead of guessing in settings panels.

DIY Fixes You Can Do Today

1. Turn on Cloudflare proxying for your main domain. This gives you basic DDoS protection and hides some origin details immediately.

2. Check every environment variable name against your production build. Anything starting with a public prefix should be reviewed carefully because frontend frameworks often expose those values by design.

3. Send test emails from your domain to Gmail and Outlook. Then check SPF/DKIM/DMARC status using an online validator before you announce launch.

4. Audit your form fields. Remove anything you do not need right now because every extra field increases drop-off and data handling risk.

5. Set up uptime monitoring today. Even a simple check that pings your homepage every minute is better than finding outages from angry prospects at 9 am Monday morning.

Where Cyprian Takes Over

I map each failure directly to a deliverable so there is no vague "we improved security" language.

| Failure found in audit | What I do in Launch Ready | |---|---| | Exposed secrets or unsafe config | Move secrets into environment variables; rotate compromised keys; remove client-side leakage | | No SSL enforcement | Configure HTTPS redirects; fix mixed content; validate certificate chain | | Weak DNS setup | Clean up A/CNAME records; set root/www behavior; add subdomains properly | | Poor email deliverability | Configure SPF/DKIM/DMARC; test inbox placement; fix sender reputation basics | | No edge protection | Put site behind Cloudflare; enable caching rules; apply DDoS protection settings | | Broken deployment process | Push production-safe deployment with rollback notes and owner handover | | No monitoring | Add uptime alerts plus basic health checks so failures are visible fast | | Unclear handoff ownership | Deliver checklist covering domain registrar access, DNS, email provider, hosting, and emergency recovery steps |

My recommendation is simple: if the site must collect leads this week, buy the sprint instead of stitching together more tutorials.

support time, and damaged trust. For B2B service businesses, that trade-off usually pays back immediately because one saved deal can cover the whole engagement many times over.

Delivery Map

References

• roadmap.sh cyber security best practices - https://roadmap.sh/cyber-security
• roadmap.sh API security best practices - https://roadmap.sh/api-security-best-practices
• Mozilla Web Security Guidelines - https://infosec.mozilla.org/guidelines/web_security
• OWASP Top 10 - https://owasp.org/www-project-top-ten/
• Google Search Central HTTPS documentation - https://developers.google.com/search/docs/appearance/google-search-central?hl=en

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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.*