Technical Due Diligence
You inherited a codebase. Find out what it actually is.
When you inherit a codebase, from a contractor, a departed founder, or an acquisition, you are now responsible for code nobody on your side fully understands. A senior audit tells you what you are standing on: how secure it is, how sound it is, and whether it is safe to build on before you commit the next six months to it.
From $750, fixed quote, report in about a week. See full pricing
You cannot plan on a codebase you cannot see into.
An inherited codebase is a black box. It might be clean and well-built, or it might be held together in ways that will cost you dearly the first time you lean on it. Roadmaps, hiring and promises to customers all depend on which it is, and you cannot know from the outside. An audit replaces the guess with evidence, before the codebase becomes the foundation of your plans.
What you get.
Security and exposure review
Access control, auth, secrets and data exposure, so you know whether you inherited a liability along with the code.
Code quality and structure
How the code is organised, how much is duplicated or dead, and whether the architecture matches what you were told it is.
Dependency and risk audit
Outdated or risky dependencies, single points of failure, and the parts that will resist change.
Buildability assessment
An honest read on whether to build on this codebase, refactor it, or move off it, with the reasoning laid out.
Prioritised report and re-review
Every finding severity-rated with a fix or a recommendation, plus a free re-check once you act on the urgent ones.
The kind of thing we find
An inherited app looked tidy from the front. Underneath, a table of full bank account numbers was readable by anyone holding the public key, a liability the previous team never mentioned and the new owners would have inherited unknowingly. The audit surfaced it before it became their breach to explain.
How it works.
- 01
Scope
Repo size and a walkthrough of what the app does set the fixed quote.
- 02
Review
A senior engineer reads the code and tests the live app, by hand.
- 03
Report
A clear picture of what you inherited, with severities and recommendations, in about a week.
- 04
Re-review
After you address the urgent findings, we verify them. Included.
Common questions.
- I just took over a codebase. Where do I start?
- With an audit, before you build on it. Knowing what you inherited, the security exposure, the code quality, the risky dependencies, lets you plan on evidence instead of a hope that it is fine. It is the cheapest insurance against a nasty surprise six months in.
- Is this the same as technical due diligence?
- It covers the same ground, security, code health, dependency risk, and how honestly the architecture matches its description, whether you are inheriting the code operationally or evaluating it before an acquisition. If you are on the buying side, we can audit a target's codebase for you.
- What does an inherited-codebase audit cost?
- From $750, fixed quote before we begin, with the re-review of urgent fixes included.
Related services.
Let's build something real.
Tell us about your app or idea. You'll get a clear plan and a fixed quote back within 24 hours.