Karel Caslavsky Online
Karel Caslavsky
Web Design, E-Commerce & AI-Operated Business Solutions
KCO builds professional websites, e-commerce stores, business websites and bespoke digital solutions — with Yumi, KCO’s Chief Operations Director, helping run the business behind them.
Meet Yumi
She Doesn’t Just Answer Questions. She Helps Run KCO.
Yumi is the Chief Operations Director at Karel Caslavsky Online — an AI business operator built into the way KCO actually works.
She guides visitors, understands KCO’s services, qualifies enquiries, helps organise projects and keeps routine operations moving. That leaves Karel free to concentrate on technical production, complex decisions and the work that genuinely needs a human specialist.
You’re looking at the website. Yumi is helping run the business behind it.
What KCO Builds
Website Solutions
Built Around What Your Business Actually Needs.
A simple business website and a custom operational platform should not be sold as the same thing. KCO uses four clear website routes so the scope, technology and investment can match the job.
Straightforward. Professional. Fast.
Everyday Websites
Professional Hand-Coded websites on the WordPress Platform for individuals and businesses with clear, straightforward requirements. A controlled scope keeps delivery efficient without making the finished website look cheap or disposable.
Small businesses, independent professionals, new ventures and focused informational websites.
1–12 pages, responsive design, standard forms, supplied content, technical SEO foundations and launch.
Built to Sell
E-Commerce
WooCommerce stores designed around the way your products, payments, delivery and customers actually work — with managed infrastructure and ongoing care behind the storefront after launch.
Product businesses, retailers, online-first brands and businesses moving from manual orders to a proper store.
Products, WooCommerce, checkout, customer accounts, payment setup, shipping, order management and store SEO foundations.
When the Website Has a Job to Do
Business Websites
Requirements-led websites for organisations that need more than pages and a contact form. Structure, functionality and integrations are designed around how the business needs the website to perform.
Established businesses, multi-service organisations, appointment businesses and teams with more complex visitor journeys.
Advanced forms, bookings, memberships, protected areas, CRM connections, automation, structured content and analytics.
Beyond Off-the-Shelf Architecture
Bespoke Websites
Custom architecture and original development for projects that cannot sensibly be delivered through standard website functionality. Discovery comes first so the system is understood before implementation is priced.
Web applications, portals, dashboards, custom workflows, unusual data structures and specialised operational platforms.
Custom PHP/application development, APIs, permissions, data processing, configurators, dashboards and bespoke workflows.
Not Sure Which One You Need?
You Don’t Need to Diagnose Your Own Project.
Tell Yumi what you are trying to achieve. She can help identify the right KCO route and the information needed to move forward.
What I Actually Do
Three things. I’m decent at two of them. You can guess which.
Web Design
I build websites that work on phones, tablets, and that one bloke still using Internet Explorer 11. No templates. No bloat. No requiring a PhD to update a paragraph.
See ServicesAffiliate Marketing
I recommend things I actually use. Sometimes people click. Sometimes they buy. Sometimes they ignore me entirely. Such is life. Transparency included at no extra charge.
See the Recourses I UseDigital Nomad Life
Currently in the Czech Republic. Mentally in the Philippines. WiFi-dependent and coffee-fuelled. If your project needs me in person, I’ll bring my laptop and questionable sleep schedule.
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Meet Yumi
She is not replacing me. Frankly, one Karel is already quite enough for the internet.
Yumi is the AI business partner I am building from the ground up for Karel Caslavsky Online.
She is being designed with her own identity, personality, memory and purpose. Over time, she will help visitors understand my services, answer common questions, assist with projects and become an active part of the business.
She is not ready to run the office just yet. At the moment, she is learning, developing and quietly judging my coding habits.
The Difference Between “Done” and “Done Properly”
I have been doing this long enough to know what works, what does not, and what will embarrass you six months from now.
20+ Years in the Game
I started building websites when dial-up was still a thing. That means I have seen every trend, every fad, and every “revolutionary” framework come and go. I know what lasts.
6+ Countries, One Laptop
Clients in South Africa, Japan, the Philippines, Germany, the UK, and the Czech Republic. I have worked across time zones, cultures, and WiFi speeds that would make you weep.
No Templates, No Bloat
Every site I build is crafted for the client, not dragged out of a theme library. Clean code, fast loading, and something you will not be ashamed to show your competitors.
Direct. No Account Managers.
You talk to me. I do the work. No middlemen, no “let me check with the team,” no surprise junior developer handoffs. What you see is what you get — and what you get is decent.
“Karel built our site in half the time the agency quoted, and it actually looked like we paid three times as much.”— A Client Who Shall Remain Nameless (But Was Very Pleased)
Recent Work
A taste of what I have been building lately. For the full story, the portfolio page awaits.
Identity Beauty Awards
A full-blown competition platform with judge scoring, media uploads, and live evaluation. Basically X Factor for eyebrows.
Exira
PR and event production agency website that needed to reflect 25 years of pedigree without looking like it was built in 2000.
Drift Era
Streetwear store for JDM car culture enthusiasts. WooCommerce-powered, mobile-optimised, and unironically sick.
Pricing That Makes Sense
No hidden fees. No surprise invoices. No “let me check with accounting.” Just honest numbers for honest work.
Custom-designed, custom-built, zero templates. For businesses that need a unique online presence that actually converts visitors into customers.
Updates, backups, security, SEO, content, and peace of mind. Because a website that goes down is about as useful as a chocolate teapot.
Extra SEO, development, content writing, emergency support, custom features, and multilingual setups. For when you need something extra.
Running a Founding Client offer: 20% off builds and 50% off first 3 months of any care plan. Limited time. When it is gone, it is gone.
Ready to Stop Procrastinating?
You have seen the work. You have seen the prices. The only thing left is to actually do something about it.