Founder, Oxtren Labs
Julius Sūnelaitis
Julius Sūnelaitis is the founder of Oxtren Labs, a studio in Kaunas, Lithuania, operating since 2022. It builds websites, online stores (Shopify, WooCommerce, headless and custom) and digital platforms for companies in Lithuania and the EU, and maintains them after launch. The studio also builds its own product, Hesio, a Shopify app that shows what most often stops shoppers from buying. On the blog he writes about ecommerce, the purchase journey, web development and maintenance.
Areas
- Online store development
- Shopify stores
- WooCommerce and headless WooCommerce
- Conversion optimisation
- Web development with Next.js
- Web platforms and integrations
- Technical SEO
- Website maintenance
- Shopify apps
Profiles
Articles
- Ecommerce15 min read
15 online store mistakes that cost you sales
15 common online store mistakes – slow mobile pages, weak search, hidden shipping costs, long checkouts – why they cost sales and how to fix each one.Read - Web systems10 min read
Building an MVP: from idea to first version
What an MVP is, why it is worth building one, how to get from an idea to a first working version, what to leave for later and what it costs.Read - Automation10 min read
Business process automation: where to start
Business process automation: which processes to automate first, how triggers and actions work, n8n or Make, and what happens when a workflow fails.Read - UX & CRO12 min read
Checkout UX checklist for online stores
A checkout UX checklist: cart, account, form fields, errors, delivery, payment, mobile and accessibility – each point backed by Baymard research.Read - Web systems11 min read
How much does a custom web system cost?
What a custom web system costs: the factors behind the price, Oxtren systems from €4,900, running costs after launch and how to get an exact quote in writing.Read - Websites11 min read
How much does a website cost to build in 2026?
What a website costs to build in 2026: the factors behind the price, Oxtren packages from €990, timelines, running costs and how to get an exact quote.Read - Ecommerce11 min read
How much does it cost to build an online store?
What an online store costs to build: the factors behind the price, Oxtren packages from €2,490, running costs to budget for, and how to get an exact quote.Read - Websites9 min read
How much does website maintenance cost, and what does it cover?
What website maintenance costs: what updates, backups and monitoring cover, what drives the price, Oxtren plans from €149/mo and how to choose a plan.Read - Websites11 min read
How to choose a web design agency: 8 criteria
How to choose a web design agency: 8 criteria, the questions to ask before you sign, red flags, and how to compare several proposals side by side.Read - Performance10 min read
How to speed up a website: what to measure and fix first
How to speed up a website: Core Web Vitals, field and lab data, fixing LCP, INP and CLS, images, server response and third-party scripts – in the right order.Read - Automation11 min read
Integrating a CRM with your website, reliably
How to connect your website to a CRM so enquiries never get lost: what data to send, queues and retries, linking without duplicates and syncing status back.Read - UX & CRO13 min read
Purchase journey analysis: how to find where shoppers leave your store
How to analyse an online store's purchase journey: which GA4 events to track, how to read a funnel, where to look for losses and how to turn data into changes.Read - Ecommerce12 min read
Shopify vs WooCommerce: which platform should you choose?
Shopify vs WooCommerce compared on cost, ownership, flexibility, integrations, SEO, checkout and upkeep – who each platform suits and how to switch.Read - Ecommerce13 min read
Supplier XML product import: how to make it reliable
How to import products from supplier XML reliably: field mapping, validation, stock and price updates, discontinued products, several suppliers, alerts.Read - SEO10 min read
Technical website audit: what to check and how
A technical website audit covers indexing, speed, security, forms and analytics. A 20-point checklist and how to rank the findings by what matters most.Read - Web systems10 min read
When does a business need a custom system?
Six signs your business needs a custom system, when it doesn't, off-the-shelf tools versus custom software compared, and how to decide.Read - Websites11 min read
When to rebuild your website: 7 signs
When a website is worth rebuilding and when fixing it is enough: 7 signs, a self-check and how to move to a new site without losing Google rankings.Read - UX & CRO11 min read
Why don't visitors buy from your online store?
Why visitors don't buy: four unanswered questions – delivery, price, choice, trust – and a stuck journey. How to spot the cause and what to change.Read
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