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Ecommerce Website Development

Ecommerce website development across Europe: online stores that convert, take payments safely and get found, security-reviewed in-house. Free quote.

Manual, expert-ledEvidence-based findingsFree remediation retest

Ecommerce website development is how you turn a catalogue and a plan into an online store that customers trust enough to hand over a card. We build online shops for businesses across Europe, from a first storefront to a full-scale multi-region site, and every store is checked by our in-house security team before it starts taking payments.

Worth knowing who is behind this. SafetyBis is a European cybersecurity firm, and the store-building practice runs alongside our penetration testing team as a separate group with its own contracts. The point of that arrangement is simple. An online shop takes money and personal data, which makes it a target, and having developers who learned their trade next to people who attack payment sites means the shop you get is built to survive contact with the real internet.

What ecommerce website development covers

Building an online store is more than dropping products onto a template. It is product pages that sell, a browsing experience that helps people find what they want, a checkout that does not lose the sale, and the trust signals that convince a first-time visitor you are real. Get any of those wrong and traffic arrives but nobody buys.

Product pages that show the right images, options and stock clearly
Category browsing, filtering and on-site search that actually finds things
A short, mobile-first checkout with guest purchase and clear delivery info
The payment methods European shoppers expect, with 3-D Secure done right
Trust signals: reviews, clear returns, real contact details, a visible padlock
An admin your team can run: add products, edit prices, process orders
SEO structure so product and category pages get found on their own

Building the storefront

The storefront is the shop floor, and it has one job: make it easy and reassuring to buy. We design it around how people actually shop online, on a phone, in a hurry, skimming, comparing, easily spooked. The build follows in stages you can see, so nothing is a surprise at the end.

Product pages that do the selling

The product page is where the decision is made. We build pages that load the main image fast, show variants and stock without a page reload, put the price and delivery promise where the eye lands, and make adding to the cart obvious. Good product photography and clear copy do a lot of the work, and we set the page up so yours can shine rather than fighting the template.

Finding things: navigation, filtering and search

A shopper who cannot find the product does not buy it. We build category navigation that matches how your customers think, filtering that narrows a large range quickly, and on-site search that copes with typos and synonyms instead of returning nothing for a near-miss query. For larger catalogues this is the single biggest lever on sales.

Mobile-first, because that is where they shop

Most of your shoppers are on a phone, so we design and test there first. Buttons are thumb-sized, forms are short, the checkout does not demand pinch-zooming, and the whole thing feels quick on a mid-range handset on a normal connection rather than only on the developer’s flagship phone.

Fixed
milestone pricing agreed before we start
Mobile
first design and testing, where most sales happen
In-house
security review before the store takes a payment

Checkout and payments

The checkout is the part of an ecommerce website where good development turns directly into revenue. Every extra field and every slow step loses a percentage of sales, so we keep it short, forgiving and fast.

A checkout that keeps the sale

We keep guest checkout available, ask only for what an order genuinely needs, validate addresses without rejecting real ones, and make a declined card a clear, recoverable moment rather than a dead end. Delivery options and total cost appear before the customer commits, because surprise shipping fees at the last step are the classic reason a full cart is abandoned.

Payments the European way

Shoppers here expect their preferred method, whether that is a card, a wallet or a local option, and PSD2 means strong customer authentication is mandatory. We integrate providers like Stripe, Adyen and PayPal with 3-D Secure implemented so it reassures rather than frightens. Our payment gateway integration page covers the card-handling detail, and the same team does that work.

Trust, security and taking money safely

People buy from stores they trust, and nothing destroys trust faster than a store that looks amateur or, worse, gets breached. Both of those are things we are unusually well placed to prevent. On the visible side we build in the trust signals shoppers look for. On the hidden side, our security background shapes the architecture.

Keeping card data out of scope

We design so card entry happens inside the payment provider’s hosted field, which keeps sensitive data off your servers, shrinks your PCI scope and removes a whole class of breach. It is a technical decision the customer never sees and never should.

Protecting customer accounts

Customer accounts get authorisation checks that confirm ownership, so one shopper can never reach another’s orders or address book by editing a URL. Admin access is scoped and logged, and the platform is kept patched so an old vulnerability does not become someone’s way in.

Formal assurance when you need it

If an acquirer, a partner or your own risk process wants documented proof, our offensive team can run a penetration test against the finished store and produce a report and attestation aligned to PCI DSS. That is a separate engagement with its own quote, and the store build does not oblige you to buy it.

Get a fixed quote

Want this tested on your own systems?

Free 20-minute scoping call, a fixed price with no hourly surprises, and a free retest once you fix what we find.

Get a fixed quote

Launching and running the store

Going live with a shop is a moment that deserves a plan. A dropped order or a checkout bug on launch day is expensive in both money and reputation.

A launch that is tested first

Before go-live we place real test orders through the real payment sandbox, check the store on a range of devices, and confirm that stock, order emails and admin all behave. If you expect a launch spike or a seasonal rush, we load test for it in advance rather than finding the ceiling during your busiest hour.

Running it after launch

Your team gets an admin that is genuinely usable: adding products, editing prices, running promotions and processing orders without needing a developer. We provide documentation, and we can stay on to keep the platform patched and add features as the shop grows, or hand it over cleanly if you would rather run it yourselves.

Getting the store found

A beautiful shop with no traffic sells nothing. We build the store so it can earn organic visitors, and we wire in the tools that show you where your buyers come from and where they slip away.

SEO built into the structure

Product and category pages are built with clean URLs, sensible headings, structured data for rich results, and metadata your team can edit. That gives each page a real chance of ranking on its own, which over time is far cheaper than paying for every click. When a page sells a product well, search engines and shoppers both reward it.

Product data and merchandising

A store is only as good as its product data. We set up the catalogue so attributes, variants, images and descriptions are consistent, which makes filtering work, keeps the pages looking professional, and feeds tidy data to comparison sites and marketplaces if you sell there too. Messy product data is the quiet reason many stores feel amateur, and it is fixable.

Analytics and consent

We set up analytics so you can see which products and pages drive sales and where checkouts fall over, with tracking added in a way that respects consent rules across European markets. That turns decisions about what to improve into something you measure rather than guess.

Hosting and reliability

An online shop that goes down during a promotion loses money by the minute, so hosting is not an afterthought. We deploy to reliable European hosting sized for your expected traffic, with tested backups and TLS configured correctly so the padlock shoppers look for is genuine. Where you already have hosting, we work with it and tell you plainly if it will hold the store back on a busy day.

Ecommerce website development pricing

An online store is scoped, not sold from a fixed price list, because a fifty-product shop and a multi-language store with thousands of SKUs are different jobs. We do not publish day-rates for project work. You get a real number after a free scoping call, quoted against fixed milestones.

Project type What’s included Typical timeline Pricing
Starter store A clean online shop with a focused catalogue, mobile-first storefront, one payment provider and launch support 3–6 weeks project-scoped, from a free quote
Standard store A larger catalogue with filtering and search, multiple payment methods, shipping rules and an editable admin 6–10 weeks project-scoped, from a free quote
Store redesign Rebuild of an existing shop with content and catalogue migration and redirects that keep your rankings 5–10 weeks project-scoped, from a free quote
Multi-language / multi-region A store selling across several countries with multiple currencies, languages and correct cross-border VAT 8–14 weeks project-scoped, from a free quote
Care and growth Patching, backups and ongoing improvement work on a live store after launch rolling project-scoped, from a free quote
Large or complex store Thousands of SKUs, B2B pricing or heavy customisation, scoped after a discovery workshop on scoping project-scoped, from a free quote

Every store is fixed against agreed milestones and quoted after a free scoping call, under NDA, for merchants throughout Europe, on-site or remote. Scope my project

What you get

A store that is yours

You own the code, the hosting setup, the catalogue and the customer data, with an admin your team controls. There is no proprietary layer holding your shop hostage and no lock-in that forces you to keep paying us to make a change.

A handover you can use

At launch you get documentation on running the store, the payment and shipping setup, and the maintenance points to watch. Whether we run it or your team does, the knowledge does not live in one person’s head.

FAQ

How much does ecommerce website development cost?
Ecommerce website development cost depends on catalogue size, the payment and shipping rules, and whether you need multiple languages, so there is no sticker price. You get a milestone-based quote after a free scoping call, with no open-ended hourly billing.
How long does it take to build an online store?
A focused starter store is usually 3 to 6 weeks, while a larger shop with filtering, multiple payment methods and shipping rules runs longer. You get a firm timeline with milestones at scoping so you can plan a launch date.
Which platform will you build my store on?
The one that fits your catalogue and team. As an ecommerce website development company we work across the main platforms and custom builds, and part of scoping is honestly recommending the right fit rather than the one that suits us.
Can I manage products and orders myself?
Yes. Your team gets an admin built for everyday use: adding products, editing prices, running promotions and processing orders without a developer, plus documentation at handover.
Will my store be safe to take payments?
Security is a separate practice at SafetyBis, but your store is built by developers trained by penetration testers. We design so card entry stays in the provider’s hosted field, keeping your PCI scope small, and review the checkout in-house before launch. A formal PCI-aligned test is available separately.
Can you sell across several European countries?
Yes. We build multi-language, multi-currency stores with correct cross-border VAT, set up so adding another market is a configuration rather than a rebuild.
Can you rebuild my existing shop without losing sales rankings?
Yes. We migrate catalogue and content and put redirects in place so product and category pages keep their search rankings through a redesign instead of resetting to zero.
Do you work under NDA?
Always, signed before any code, credentials or data change hands, and we build for merchants across Europe on that basis, on-site or fully remote.

Related services

Who needs this

Businesses launching or rebuilding an online shop who want a store that customers trust and buy from: a clean first storefront, a redesign that keeps its rankings, or a multi-region store built by a team that treats a payment-handling shop as the security target it is.

why safetybis

Security you can prove

The same standard on every engagement, big or small.

Evidence, not opinions

Every finding ships with a reproduction and proof of concept — no vague "maybe vulnerable".

Humans over scanners

Certified engineers find the logic flaws and chained attacks automated tools walk straight past.

Fixed price, free retest

You know the cost up front, and verifying the fix is part of the deal — not a second invoice.

500+
assessments delivered
<30min
incident first response
12k+
infections removed
98%
fixed within one retest
$ safetybis quote --service "Ecommerce Website Development"

Ready to lock this down?

Free scoping call, fixed price, free retest. Tell us what you're running and we'll take it from there — usually within one business day.

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Tell us what you're running

Scoping is free. We reply within one business day, and under 30 minutes for active incidents.