What does building an online shop with nextlevels cost?

It depends heavily on scope. A manageable shop based on Shopware typically starts in the low five-figure range, while complex B2B or headless projects with ERP and PIM interfaces sit above that. On top come running costs for hosting, licenses and maintenance as a separate line item. You get a concrete fixed-price offer after a short discovery in which we clarify requirements, interfaces and data volumes.

How long until my shop goes live?

A clearly scoped shop usually takes from a few weeks to a few months. The range is wide because it depends on the number of interfaces, the complexity of your assortment and the data migration. We work in iterations: you see a working state early and give feedback, rather than only seeing the finished result at the end.

Which shop system do you recommend – Shopware, headless or something else?

Our focus is Shopware, because as an open-source system it is powerful, extensible and well established in the German mid-market. We recommend headless architectures (Shopware as backend, your own frontend) when you need maximum frontend freedom or special performance. We make the decision based on your requirements, not on principle – a simple shop doesn't need a headless setup.

Can you migrate my existing shop?

Yes. We migrate existing shops including product data, customers, order history and URL structure. The URLs and redirects in particular are crucial so your SEO rankings don't collapse during the move. Before migrating we analyze your current shop and plan the move so ongoing operations are disrupted as little as possible.

Do you support B2B, B2C and D2C equally?

Yes. In B2C, conversion, speed and a frictionless checkout matter most. In B2B, requirements such as customer-specific price lists, tiered pricing, order approvals, quotation features and ERP integration come into play. We support D2C brands from brand staging to the logistics interface. We build the shop around your business model, not the other way round.

How do you ensure performance and scalability?

Performance isn't an afterthought for us but part of the architecture. We optimize for good Core Web Vitals, use caching, a CDN and clean database indexes, and test behavior under load. That keeps your shop fast and stable even during load peaks such as sales campaigns or Black Friday.

What about data protection, security and payment processing?

We build shops GDPR-compliant and integrate payments via certified payment providers, so no sensitive card data sits on your server. Updates, secure configuration and a roles-and-permissions concept are standard for us. In e-commerce, security isn't an optional add-on but a prerequisite for trust and conversion.

Who owns the shop – does vendor lock-in arise?

You own everything: code, configuration, data and content. Because we build on open-source technology like Shopware, you're not tied to proprietary systems and could in principle hand operations to another team. We document cleanly – vendor lock-in is not our business model.

E-Commerce: Conversion Optimization

ConversionOptimization

More traffic is expensive – getting more out of the traffic you already have is the bigger lever. We analyze, based on data, where your shop loses visitors, derive hypotheses and validate them with A/B tests. From the product page through the checkout to load time, we optimize the points that demonstrably move the conversion rate – so measurably more visitors become customers.

Increase the conversion rate

Challenges you'll recognise

You have visitors in the shop but too few of them actually buy – and you don't know exactly why.
Many carts get filled, but customers abandon again at checkout.
Changes to the shop are made on a hunch, without anyone measuring whether they actually help.

Services in detail

Good to know

Conversion optimization scales cheaper than traffic
Buying additional traffic gets more expensive with every ad. Getting more out of existing traffic, by contrast, acts on every single visitor – a conversion rate a few percentage points higher raises revenue without increasing the ad budget.
The checkout is the costliest drop-off point
At checkout visitors are already highly motivated – every abandonment here costs an almost certain order. Friction like forced registration, missing payment methods or too many form fields therefore has a disproportionate impact on revenue.
Without measurement every change is guesswork
A design change can improve or worsen conversion – without clean tracking and A/B tests that stays invisible. Only measurement separates proven improvements from subjective preferences and makes optimization controllable.

Frequently asked questions

From what level of traffic is conversion optimization worthwhile?

A/B tests need a certain data volume to deliver statistically reliable results – as a rough guide, a few hundred conversions per month. With less traffic we rely on qualitative methods like heatmaps, session recordings and best-practice optimizations that work even without a large sample.

How quickly do I see results?

Quick levers like a lower-friction checkout or better load times often take effect within a few weeks. A/B tests need runtime to become statistically meaningful. Conversion optimization unfolds its full effect as an ongoing process across several iterations.

Do you just change the design by feel?

No. Every measure is based on a hypothesis derived from data and – where possible – validated with an A/B test. That distinguishes real improvements from chance and avoids a subjectively nicer variant actually selling less.

Does clean tracking work despite privacy rules and cookie banners?

Yes. We set up a privacy-compliant tracking setup that works with consent management and – where necessary – uses server-side tracking and modeled data. You get reliable conversion data without violating GDPR requirements.

Do you work with our existing shop or only on new projects?

We optimize existing shops – that's where the biggest lever lies, because traffic and data already exist. Conversion optimization is independent of whether we originally built the shop; we analyze the current state and act where the data shows potential.

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Why nextlevels

Success you can measure

Getting more from existing traffic is a bigger lever than buying more. We optimise data-driven and prove every improvement with A/B tests.

Revenue from existing traffic
More revenue from the traffic you already have — without a bigger media budget.
Data over gut feeling
Hypotheses come from real behavioural data, not opinions.
Proven impact
Controlled A/B tests show what actually converts.
Friction-free checkout
Fewer abandoned carts through a measurably simpler checkout.

Ready for your successful online shop?

Whether it's an improvement or a fresh start — a no-obligation conversation never hurt anyone.

Paul Kalisch
Executive Partner

info@nextlevels.de +49 (0) 2161 539 71 60