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Technical audit of your application: code, architecture, infrastructure
A technical audit is an independent assessment of the real state of an application: code quality, suitability of the architecture, robustness of the infrastructure, security level and performance. Agencei carries it out on web and mobile applications, APIs and CMS platforms, whatever the technology, and delivers a written report with recommendations ranked by priority.
It is aimed at executives and product leads who need to make a committing decision: taking over an application built by a third party, investing in a rebuild or a scale-up, acquiring a company whose software is its main asset, or choosing between fixing and rebuilding.
The problem it addresses is lack of visibility. You know the application works, but not what it will cost to maintain, where the risks are or what will block the next change. The audit replaces impressions with verifiable findings and an action plan with effort estimates.
When do we step in?
Taking over an existing application
You are changing provider or bringing development in-house. The audit measures the state of the code, documentation and dependencies before you commit to maintenance or new features.
Investment or acquisition
You are investing in a startup or acquiring a company whose value rests on software. The technical audit is part of due diligence and informs valuation and risk.
To rebuild or not?
The team is asking for a complete rewrite, management is hesitant. The audit quantifies technical debt and shows whether a gradual upgrade is enough or whether a rebuild is justified.
Preparing for a scale-up
A major contract or international launch is about to multiply traffic. The audit checks that the architecture, database and infrastructure will hold, and what needs strengthening beforehand.
Doubts about the current provider
Deliveries are slow, bugs are frequent, explanations are vague. A factual outside view tells you whether the problem lies in the code, the organisation or the expectations.
How we work
- 1
Scoping
Definition of the scope (code, architecture, infrastructure, security, performance), the questions the audit must answer and the access required: Git repositories, environments, cloud accounts, documentation.
- 2
Interviews and data collection
Discussions with the teams in place to understand history, constraints and pain points. Collection of available metrics: incidents, response times, test coverage, deployment frequency.
- 3
Code and architecture review
Reading the code, static analysis, module structure, error handling, tests, dependencies and their versions, technical debt. Assessment of the architecture against real needs and expected load.
- 4
Infrastructure, security and performance review
Server and cloud configuration, backups, monitoring, deployment pipeline, secrets and access management, exposure to known vulnerabilities, profiling of slow spots.
- 5
Prioritised report
Factual findings, risks ranked by severity and likelihood, recommendations with effort estimates, phased roadmap. The report separates what is urgent, what is important and what can wait.
- 6
Presentation
Presentation of the conclusions to decision-makers and, if you wish, to the technical teams. We answer questions and help decide on next steps.
Technologies we use
- SonarQube and static analysis
- ESLint, PHPStan and SpotBugs
- npm audit, Composer audit and OWASP Dependency-Check
- Lighthouse and APM
- EXPLAIN ANALYZE and schema analysis
- Git review (history, branches, CI/CD)
- Terraform and cloud configuration review
- AWS Trusted Advisor and IAM Access Analyzer
- Docker and Kubernetes
- OWASP ZAP
- C4 diagrams
Related expertise
Why choose Agencei?
An independent view
We do not audit in order to sell a rebuild. When a gradual upgrade is enough, we say so, with the arguments.
Multi-technology experience
Java, Node.js, Python, PHP, React, React Native, WordPress, PrestaShop, AWS: we have built and operated applications on these stacks, which lets us judge code against what is actually done in practice.
An actionable report
Every finding comes with a concrete recommendation, an effort estimate and a priority. The report serves as a roadmap, not a document to file away.
Readable by decision-makers
The summary is written for executives and investors; the technical appendices are written for developers. Everyone finds what they need.
In brief
- What is this service?
- The Agencei technical audit is an independent assessment of an application's code, architecture, infrastructure, security and performance, delivered as a prioritised report with recommendations and effort estimates.
- Who is it for?
- It is aimed at executives, product leads, investors and acquirers who need to decide on a takeover, a rebuild, a scale-up or an investment in existing software.
- What problem does it solve?
- Without visibility into the real state of an application, you do not know what it will cost to maintain, where the risks are or whether it will support growth. The audit replaces impressions with verifiable findings.
- How long does it usually take?
- Usually a few days for a modest application, a few weeks for a complex platform, depending on the scope, the size of the codebase and the availability of access.
- What factors influence the price?
- The price depends on the audited scope (code, architecture, infrastructure, security, performance), the size and number of components, the technologies involved and the level of detail expected in the report.
- How does the engagement run?
- Scoping and access, interviews and metric collection, code and architecture review, infrastructure, security and performance review, prioritised report with roadmap, presentation to decision-makers.
- What are the risks?
- An audit without access to the code or the teams remains superficial. An audit carried out by the future rebuild provider may lack independence. A report without prioritisation is not usable.
- What alternatives exist?
- A one-off code review limited to a specific scope, a security-only audit, a performance-only audit, or a trial maintenance period to evaluate the application through practice.
Frequently asked questions
How long does a technical audit take?
Usually from a few days for a modest application to a few weeks for a complex multi-service platform. The duration depends on the chosen scope, the size of the codebase and the availability of access and teams.
What does the audit report contain?
A summary for decision-makers, detailed findings by area (code, architecture, infrastructure, security, performance), risks ranked by severity, recommendations with effort estimates and a phased roadmap.
Do we need to give access to the source code?
Yes, a serious audit requires read access to repositories, environments and documentation. We sign a non-disclosure agreement and only need read permissions. Without the code, we can only carry out an external assessment, which is far less precise.
Can the audit be used for investment due diligence?
Yes. We adapt the report to the questions of an investor or acquirer: dependence on key people, code ownership, dependency licences, technical debt, ability to scale, operating costs and security risks.
What happens after the audit?
You are free to have the recommendations implemented by your team, your current provider or Agencei. The audit is a standalone deliverable; our conclusions are not conditional on any follow-up work with us.
Do you also audit WordPress and PrestaShop sites?
Yes. On a CMS, the audit covers the theme and custom developments, plugins or modules and their maintenance, configuration, security, performance and the backup and update strategy.
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