Choosing a web agency feels simple until you're three months in, €3,000 poorer and staring at a website that doesn't work the way you expected.
It happens more often than anyone in the industry likes to admit. Here's how to avoid it.
1. Look at the portfolio — really look at it
Every agency describes itself as "creative", "results-driven" and "passionate about digital". Those words mean nothing without proof.
Ask to see real projects similar to yours in size or industry. Visit those websites. Are they fast? Do they work on mobile? Do they look current?
If the portfolio is vague, generic or suspiciously absent, that's your first warning sign.
2. Verify the work is actually theirs
Some agencies showcase websites they didn't build — or had a minor role in. Ask specifically who did what. If they can't give you a clear answer, dig deeper.
A simple check: look at the website credits or footer, or search the domain on tools like BuiltWith to understand the technology stack.
3. Ask about SEO from day one
A beautiful website that doesn't appear on Google is a very expensive business card.
Before signing anything, ask:
- Will the site be technically optimized for SEO?
- Will it include meta tags, a sitemap, structured data?
- Will it load fast on mobile?
If the agency responds with vague promises or looks confused by the question, look elsewhere.
4. Be suspicious of prices that are too low
A €300 website exists. But it's almost always a downloaded template — not optimized, slow, and identical to hundreds of others. Low cost today usually means high cost tomorrow, when you have to redo everything.
A professional website for a small business in Europe typically costs between €800 and €4,000 depending on complexity. Below that threshold, ask a lot of questions.
5. Clarify who owns the website
Some providers build websites on proprietary platforms. If you stop paying, you lose everything — including the domain, the content and the design.
Ask explicitly: "If we stop working together, can I take the website elsewhere?"
The answer should be an immediate yes. If there's hesitation, that's a serious red flag.
6. Evaluate communication before you sign
How does the agency respond before you've paid them anything? If getting a quote takes a week, imagine what support will look like after the project is delivered.
A good agency is clear, responsive and transparent from the first conversation. If things feel confused or vague at the start, they won't improve.
7. Ask for real references
Not the logos on the homepage — anyone can put those there. Ask for the contact details of a previous client and actually call them. Five minutes of honest conversation tells you more than any brochure.
Questions to ask: Did they deliver on time? Did the price change during the project? How did they handle problems? Would you work with them again?
8. Understand what happens after launch
The website going live is not the end of the project — it's the beginning. Who handles updates? What happens if something breaks? Is there a maintenance plan?
A good agency is clear about post-launch support from the start. If this isn't discussed before signing, bring it up yourself.
9. Watch out for long-term lock-in contracts
Some agencies require 12 or 24-month contracts for hosting and maintenance, with heavy penalties for early exit. Read the small print carefully.
You should be able to leave a service relationship without losing your website, your data or your money.
10. Trust your instincts
After all the due diligence, there's still something that can't be measured: how does working with these people feel?
Do they listen? Do they ask good questions about your business? Do they push back when something doesn't make sense — or do they just say yes to everything?
The best agency relationships feel like partnerships, not transactions.
At MosTag, we work differently
No proprietary platforms. No long-term lock-in. The website is yours — the domain, the code, everything.
Before starting any project, we have a free call to understand if we're actually the right fit for you. No pressure, no pitch.
If you'd like to talk about your project, get in touch.