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Security Audit Deliverables for Clients: A Practical Guide

A practical guide to security audit deliverables for clients — what to include, how to format findings, and templates that agencies and developers can reuse.

WebSentry TeamMay 9, 20265 min read

When you finish a website security audit, the value isn't in what you found — it's in how you communicate it. Clients don't just want a list of issues; they want clarity, priorities, and a path forward. Whether you're a freelance developer or running a web agency, the deliverables you hand over define how the work is perceived and whether the client renews.

This guide covers exactly what to include in your security audit deliverables for clients, with templates, examples, and structure you can copy directly.

The Core Deliverables Every Client Should Receive

A complete security audit package usually includes six items. Skipping any of these tends to lead to follow-up emails and confusion later.

  1. Executive summary — a one-page overview for non-technical stakeholders
  2. Detailed findings report — every issue, evidence, and remediation steps
  3. Risk-rated issue list — sorted by severity, exploitability, and business impact
  4. Technical appendix — raw scan output, headers, certificate details, DNS records
  5. Remediation roadmap — prioritised tasks with effort estimates
  6. Re-test report — confirmation once fixes are deployed

1. The Executive Summary

This is the document the client's CEO or marketing director will actually read. Keep it to one page. Avoid jargon.

What to include

  • Overall security grade (e.g. C+) with a short justification
  • Three to five key risks in plain English ("Login pages can be embedded in malicious sites due to a missing header")
  • Estimated time and cost to fix critical issues
  • Comparison to industry baseline if relevant

Tools like WebSentry produce an A–F grade automatically, which makes a useful anchor for this section. Clients understand letter grades instantly — "we moved you from a D to an A-" is far more compelling than "we improved your CSP score."

2. The Detailed Findings Report

This is the meat of your deliverable. Each finding should follow a consistent structure so the client (or their dev team) can work through it methodically.

A reusable finding template

  • Title: Missing Strict-Transport-Security header
  • Severity: High
  • Category: HTTP Headers
  • Affected URLs: https://example.com, https://example.com/login
  • Description: The HSTS header instructs browsers to only connect over HTTPS. Without it, users are vulnerable to SSL stripping attacks on untrusted networks.
  • Evidence: Response headers from curl -I https://example.com
  • Recommendation: Add Strict-Transport-Security: max-age=31536000; includeSubDomains
  • Effort: 15 minutes
  • References: MDN, OWASP Secure Headers Project

Consistency matters. If one finding has remediation steps and another doesn't, the client will assume the missing one is unfixable.

3. Risk Rating That Actually Means Something

"Critical / High / Medium / Low" only works if you define what each level means. Otherwise every developer rates things differently.

A simple risk matrix

  • Critical: Active exploitation possible, leads to data exposure or account takeover (e.g. SQL injection, exposed admin panel)
  • High: Significant weakening of security posture, exploitable with effort (e.g. missing CSP, weak TLS ciphers)
  • Medium: Defence-in-depth issue, low individual impact (e.g. missing X-Content-Type-Options, verbose error messages)
  • Low: Best-practice gap, mostly informational (e.g. missing referrer policy)

Document this matrix in the report itself. It removes arguments and makes the grading defensible.

4. The Technical Appendix

Developers want raw data. Include it as appendices so the main report stays readable.

  • Full HTTP response headers for the homepage and key endpoints
  • SSL/TLS configuration — protocols, ciphers, certificate chain, expiry dates
  • Content Security Policy breakdown, directive by directive
  • Cookie inventory with flags (Secure, HttpOnly, SameSite)
  • DNS records relevant to security: CAA, SPF, DMARC, DKIM, MX
  • CORS configuration on any API endpoints
  • Subresource integrity status for third-party scripts

Running a WebSentry scan covers most of this automatically and produces exportable output you can paste directly into the appendix, which saves an hour of manual collection per audit.

5. The Remediation Roadmap

This is where you turn findings into a project plan. Don't just hand the client a list of problems — hand them a sequenced plan.

Structure it in phases

  1. Phase 1 — Quick wins (1–2 days): Header changes, cookie flag updates, DNS records. Low effort, immediate grade improvement.
  2. Phase 2 — Configuration hardening (1 week): CSP rollout in report-only mode, TLS reconfiguration, CORS tightening.
  3. Phase 3 — Application changes (2–4 weeks): Input validation fixes, authentication improvements, dependency updates.
  4. Phase 4 — Ongoing monitoring: Scheduled scans, certificate expiry alerts, dependency monitoring.

Include rough cost estimates if you're pitching follow-up work. A line like "Phase 1: $800 fixed price, Phase 2: $2,400" turns a report into a sales document without being pushy.

6. The Re-Test Report

Always include a re-test in your scope. After the client (or you) deploys fixes, run the audit again and produce a short follow-up document showing:

  • Before and after grades
  • Issues resolved, with verification evidence
  • Issues outstanding, with reasons
  • New issues introduced (it happens)

This is also the moment to upsell ongoing monitoring. A one-off audit goes stale within weeks as code changes and dependencies update.

Format and Delivery

How you deliver matters almost as much as the content.

  • PDF for the executive summary and main report — branded, paginated, professional
  • Spreadsheet for the issue tracker — clients can assign owners and track status
  • Markdown or plain text appendices — easy for developers to grep
  • A short walkthrough call — 30 minutes to talk through findings beats any document

Common Mistakes to Avoid

  • Dumping raw scanner output as the entire deliverable
  • Listing dozens of low-severity issues without prioritisation
  • Using fear-based language ("hackers will exploit this immediately!")
  • Forgetting to include positive findings — clients like to know what they're doing right
  • Not specifying who is responsible for each fix (you, them, their hosting provider)

Conclusion

Strong security audit deliverables aren't about volume — they're about clarity, prioritisation, and giving the client a clear next step. Use a consistent finding template, define your risk ratings, sequence remediation into phases, and always include a re-test.

If you want a fast way to generate the technical baseline for your next audit, run a free scan at websentry.dev. You'll get an A–F grade across SSL, headers, CSP, cookies, DNS, and CORS in seconds — a solid starting point you can build a full client deliverable around.

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