1. Can You Show Me a Case Study Similar to My Project?
A portfolio shows what an agency has built.
A case study shows whether they can solve problems.
The difference matters.
Ask for a case study that covers:
- The client's original problem
- The approach taken
- The specific solution built
- The measurable outcome
If an agency can walk you through this clearly for a project similar to yours, they understand how to deliver results not just how to write code.
If they can only show you screenshots and tech stacks, keep looking.
For a business website, a useful case study should include conversion goals, Core Web Vitals or performance targets, CMS or framework choices, SEO migration risks, and what changed after launch. For a custom web application, look for workflow details, user roles, integrations, data model complexity, uptime expectations, and post-launch support.
2. Who Will Actually Be Working on My Project?
Some agencies pitch with senior developers and deliver with junior ones.
This isn't always wrong junior developers can do excellent work but you deserve to know who's building your product.
Ask specifically:
- Who is the lead developer?
- Who handles project management?
- Who is your primary point of contact?
- Will any work be subcontracted?
- Who reviews code before it is merged?
- Who owns QA, deployment, and production support?
Knowing this upfront sets clear expectations and prevents the frustration of discovering mid-project that the team you thought you hired isn't the team actually doing the work.
3. What Happens When Something Goes Wrong?
Something always goes wrong.
This isn't pessimism it's the reality of software development.
Requirements change. Technical surprises emerge. Timelines shift.
How an agency answers this question tells you more about how the working relationship will feel than any sales pitch.
Look for:
- A clear process for raising and resolving issues
- Honest communication about delays
- A track record of handling problems constructively
- A written change-request process
- Version control, staging, backups, and rollback planning
- Security checks for authentication, authorization, uploads, dependencies, and secrets
An agency that promises nothing will go wrong is either inexperienced or not being straight with you.
4. What Do You Need From Me to Be Successful?
Good agencies know that client input directly affects project output.
They'll need:
- Timely feedback
- Clear decisions on open questions
- Access to relevant stakeholders
- Content or assets on agreed timelines
- Access to existing analytics, hosting, domain, email, payment, CRM, or ERP systems when those systems are in scope
- One decision owner for scope, budget, and approval
An agency that says "we handle everything, don't worry" without specifying what they need from you isn't taking your project seriously.
Every successful development project is a collaboration.
5. What Is NOT Included in This Quote?
Scope creep is one of the most common reasons web development projects go over budget and over time.
Before signing, understand explicitly what is excluded from the quote.
For example:
- Revisions beyond a certain number
- Content creation
- Hosting setup
- Third-party integrations
- Ongoing maintenance
- SEO migration, redirects, and analytics setup
- Accessibility testing against WCAG 2.2
- Security hardening, penetration testing, monitoring, and incident response
- Source-code handover, documentation, and staff training
A transparent agency will welcome this question and give you a clear answer.
An agency that gets uncomfortable or vague when asked what's excluded is telling you something important about how they operate.
The Pattern
The right agency will welcome every one of these questions.
They'll have clear, confident, honest answers.
The wrong agency will get defensive, vague, or try to rush past them.
Use these five questions as a filter not just for capability, but for character.
The agency you hire is a business partner, not a vendor. Choose accordingly.
Sources Worth Checking
- PMI Pulse of the Profession 2024: project performance benchmarks, delivery approaches, and technical skill gaps.
- CISA, Choosing Secure and Verifiable Technologies: procurement guidance for secure digital products and services.
- OWASP Developer Guide: security requirements and secure development practices.
- W3C WCAG 2.2: accessibility guidelines for web content.
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*At KeyTech, we welcome all five of these questions and usually ask several of our own before quoting. If you're evaluating web development agencies and want a straight conversation, reach out.*