How to Choose a Web Design Agency: 15 Questions to Ask

Most agency websites look impressive, and most proposals promise "modern, responsive, SEO-friendly" design. That makes them hard to tell apart. The differences show up later, in who owns the site, how fast it loads on a phone, and what happens when you need a change six months after launch.

This guide gives you a process, the questions to ask, the red flags to watch for, the contract clauses to insist on and a scoring table for comparing agencies. It also covers what to check when the agency is in another country.

How do you choose a web design agency?

Choose on evidence, not presentation: live references, written guarantees and a clear contract. Five steps are enough:

What questions should you ask a web design agency?

Ask questions whose answers can be checked or written into the contract. These 15 cover ownership, quality, compliance and how the project will actually run:

1. Who will own the domain, hosting account, source code and design files? The answer should be "you, in your name, handed over at launch". If the agency keeps any of these, you cannot leave without their help.
2. What performance targets do you guarantee in writing? Look for measurable targets, such as Google's Core Web Vitals (see the table below) or a minimum Lighthouse score, and what happens if they aren't met.
3. How do you design and test for mobile? Check your own analytics for your mobile share, then ask which real phones and tablets they test on, not only browser resizing.
4. Which SEO foundations are included? At minimum: clean semantic HTML, meta tags, structured data, an XML sitemap, 301 redirects from your old URLs and Google Search Console setup. For multilingual sites, add hreflang.
5. Which CMS or admin will we use, and can our team edit pages without you? Ask for a demo of the editing screen and whether training is included.
6. What accessibility standard do you build to? WCAG 2.2 level AA is the current benchmark. If you sell online to EU consumers, the European Accessibility Act has applied to e-commerce services since 28 June 2025. Microenterprises providing services are exempt.
7. How do you handle GDPR and cookie consent? Non-essential cookies (advertising pixels, most analytics) need consent before they load, and rejecting should be as easy as accepting. The UK's Data (Use and Access) Act 2025 relaxed consent for some low-risk uses, so ask whether the agency follows current ICO or EU guidance. Also ask for a data processing agreement.
8. How many design revision rounds are included? Two or three rounds are normal. Ask what an extra round costs and what counts as a revision rather than a change of scope.
9. How are payments staged? A fair structure is a deposit to start, then payments tied to approved milestones, such as design sign-off and launch. Avoid paying everything upfront.
10. What support is included after launch, and what does it cost afterwards? Ask how long the free bug-fix period lasts, the price of a monthly plan and the response time for urgent issues (the SLA).
11. How are backups and security updates handled? Ask how often backups run, where they are stored, how long a restore takes and who applies CMS and plugin updates.
12. Can we see two or three live sites similar to ours, and speak to those clients? Look at the live site, not a screenshot. Test it on your own phone and run it through PageSpeed Insights.
13. Who exactly will work on our project? Ask for names and roles. Find out whether any part of the work is subcontracted or offshored, and to whom.
14. What do you need from us, and when? Content, images, logins and feedback deadlines. A good agency sends a content checklist at the start.
15. What happens if we part ways mid-project? The contract should say what you receive for what you have paid, so the work isn't lost.

What do the Core Web Vitals thresholds mean?

Core Web Vitals are Google's three measures of real-user experience. According to Google's web.dev documentation, a page passes when it hits the "good" threshold at the 75th percentile of page loads, measured separately for mobile and desktop.

An agency that answers question 2 with these numbers, or with a Lighthouse score written into the contract, is giving you something you can check. "Our sites are fast" is not something you can check.

What are the red flags when hiring a web design agency?

The biggest red flag is any arrangement where the agency owns something you need to run your business. Watch for these as well:

• The domain or hosting will be "registered for you" in the agency's name.
• No live references, only mock-ups or screenshots, or references who can't be contacted.
• Full payment upfront, or a quote with no written scope.
• A price far below every other quote with no explanation of what has been left out.
• A proprietary CMS that only the agency can edit or host.
• "SEO included" with no list of what that means.
• Vague answers about who does the work, or a senior pitch team that disappears after signing.
• No mention of cookies, privacy or accessibility for a site that collects leads or sells online.
• Pressure to sign before you have seen a contract.

If the agency owns your domain, your hosting or your code, you are not a client. You are a tenant.

Which clauses should a web design contract include?

A good contract turns every promise from the sales conversation into something you can enforce. At minimum, check for these clauses:

• IP assignment and ownership: code, design files and content transfer to you on final payment. Domain and hosting are registered in your name from day one.
• Scope and deliverables: pages, templates, features, languages and integrations, listed.
• Acceptance criteria: measurable targets for performance, accessibility and browser/device support, and what happens if they aren't met.
• Revisions and change requests: what's included, and how extra work is quoted.
• Payment milestones: amounts tied to approved deliverables.
• Warranty and support: a bug-fix period after launch, then SLA response times.
• Data protection: a data processing agreement where the agency handles personal data (GDPR Article 28), and where the site is hosted.
• Termination and handover: what you receive if either side ends the project early.
• Governing law and currency: especially important when the agency is in another country.

How do you compare web design agencies side by side?

Score each agency from 1 to 5 on the criteria below, multiply by the weight and add up the results. Adjust the weights to your priorities, but set them before you see the prices.

The weighted total rarely points to the cheapest agency, and it rarely points to the most expensive one either. If two agencies finish within a few points of each other, choose the one whose references you spoke to. For typical 2026 price ranges by region, see our website design cost guide.

What should you know before hiring a web design company in Istanbul or abroad?

Hiring a web design company abroad works well when the working day overlaps with yours, communication is in writing, and the contract covers currency and law. The main points:

• Time zones. Turkey stays on UTC+3 all year. That is two to three hours ahead of the UK, one to two hours ahead of Germany and the Netherlands, and one hour behind the UAE. With the US East Coast you get a shared morning only, so plan fixed meeting slots.
• Communication. Agree on one project channel, a named English-speaking contact, a weekly check-in and a live preview link you can open at any time.
• Invoicing and currency. Ask for invoices in your currency (EUR, GBP or USD) so you don't carry the exchange-rate risk. B2B services from a supplier outside your country are often handled under the reverse-charge VAT mechanism. Confirm the details with your accountant.
• Data and GDPR. Turkey does not have an EU adequacy decision. If personal data will be stored or processed in Turkey, you need safeguards such as standard contractual clauses. Hosting the live site in the EU keeps the site's data in the EU.
• Legal. Agree on the governing law and jurisdiction in the contract, and make sure the IP assignment is explicit.

As an example of how this can work, Gurizon is an Istanbul-based team that works in English, invoices in EUR, USD or GBP, and offers EU (Frankfurt) or Turkey hosting. Our web design agency in Istanbul commits in writing to a Lighthouse score of 95+ in all four categories on mobile and desktop, and hands the domain, files and code over to the client. For the wider picture of outsourcing to Turkey, including when it is not the right choice, read our guide to nearshore software development in Turkey.

When is a local agency the better choice?

A local agency is the better choice when in-person work is a core part of the project. That includes brand workshops with your whole leadership team, on-site photography and video, or a regulated sector where your compliance team wants a supplier in the same jurisdiction. It also makes sense if your budget is very small: a local freelancer or a website builder may serve you better than any agency, at home or abroad. Choosing a distant agency only because it is cheaper, without the checks above, is a false economy.

If the project is really an application, such as a customer portal, booking system or B2B ordering platform, you need a different kind of agency. See our custom software development page for how those projects are scoped.

Comparing agencies right now? Send the same brief to us as you send to the others. We'll reply within 24 hours with a written scope and a fixed price you can put straight into your scoring table. It's free and there's no obligation. You can read what's included in every build on our web design services page, or contact us with any questions.