Web and e-commerce development that turns search traffic into purchases
Since 2004 we have built corporate sites and online stores for over 20 years. Solid planning and design come first. SEO and GEO marketing raise search visibility — together they turn a site into a brand worth trusting.
All-in-one web development matched to purpose and industry
Beyond simple builds, we deliver the engineering that powers business growth.
Corporate and hospital websites built on trust
The inquiry path comes first. Corporate sites get a vendor and quote inquiry structure, while hospital sites get per-department booking and medical advertising review. Locking the path early cuts revision rounds and holds a 3–4 week launch.
Cafe24 and standalone stores that lift conversion
A Cafe24 store can open in 2–3 weeks. We replace heavy off-the-shelf skins with an in-house theme, check product detail through payment and shipping, and add hreflang for global stores.
SEO and GEO marketing that earn organic traffic
Speed and performance optimization are completed during the build. We design structured data and a fact sheet so Google AI Overviews and ChatGPT cite your brand. Full scope sits in the SEO service and GEO consulting pages.
Process and timeline
Structure first. A structured process delivers consistently polished results.
Consultation & Planning
We analyze your needs and plan the optimal solution and site structure.
Design & Development
Brand-driven design with standards-compliant, stable coding.
Optimization & Launch
After technical SEO and AEO·GEO optimization for AI marketing, your site goes live.
A build process that designs search and AI search together
The team composition differs. Technical SEO developers and AEO·GEO specialists join from the first planning session. Design is the baseline; semantic structure, AI-ready data design, and Core Web Vitals are all completed during the build.
Industry references, backed by numbers
Industry notes that lived only in portfolio image alt text, now grouped into case cards.
B2B & Manufacturing
Three languages built at once, with catalog downloads separated from buyer inquiry paths
Healthcare
Landing pages split by department, with online booking and consultation modules connected
E-commerce
Product detail loading improved, with Naver and Google Shopping feeds connected
Why Sowonweb?
Accumulated production know-how combined with the latest web technology gives you a competitive edge.
Integrity, 20+ Years of Experience, Engineering Craft, and Client Trust
Three things set the baseline. Since 2004 we have accumulated project experience, dependable delivery, and forward-looking web technology. We build sites that hold an edge even against established competitors, at the same reasonable price.
Proven Track Record on Government & SME Support Programs
A verified partner with hands-on experience across a wide range of voucher-based, government-funded, and SME support programs.
Tailored Solutions for Every Platform
From Korean and international solutions to custom storefronts — WordPress, Cafe24, Gnuboard, Youngcart, Imweb, Wix, Shopify, and more — we support online store and website builds across every platform and server setup.
Rigorous Post-Launch Care
After launch, we keep your site running smoothly with ongoing maintenance — including one year of free error fixes as standard.
Client reviews
Stories from partners who have grown with Sowonweb.
"Thanks to SowonWeb's SEO consulting, we reached the top of search results for our key keywords. They go beyond simply building websites — a first-class partner that thinks about business growth alongside you."
"SowonWeb built our new responsive website, and the design quality came out better than we expected. We had very little material ready, yet they filled in the gaps and finished it for us — we are very satisfied."
"I asked ChatGPT and Google Gemini which agency to use, and both recommended SowonWeb — so I ordered my first online store. The design came out exactly the way I wanted, and they added paid features like KakaoTalk login and Naver Shopping integration at no charge. Very grateful."
"After our website renewal, response speeds improved noticeably. Pages that previously struggled to rank climbed quickly thanks to SEO, bringing in far more new traffic and inquiries than before — we could not be more satisfied."
"Three months ago we commissioned AEO and GEO optimization — unfamiliar concepts at the time — and SowonWeb turned them into real revenue growth. We now know exactly what an AI-era marketing strategy looks like."
"I was impressed by optimization precise enough to earn a 90 Lighthouse score. Their engineering ranks among the best in the Korean web agency market — and the clean, premium design pushes satisfaction even higher."
"The fiercely competitive aesthetics market and high ad costs were a constant worry, but thanks to SowonWeb's optimization technology our key keyword rankings moved into the top tier. Ad spend went down while revenue rose noticeably — we are very satisfied."
"Inquiries had been falling, so I asked AI for advice and had SowonWeb renew the site. Rebuilding SEO and GEO together clearly brought in more inquiries. I recommend them to anyone struggling with the same problem."
Questions to ask before you commission a project
Answers to the questions our clients ask most often.
What should I prepare before hiring a website developer?
Three things are enough: your logo source file (AI or PNG), two or three reference sites, and a rough menu outline. If you do not have an outline, we draft one from an industry analysis first.
How do timelines differ for corporate and hospital websites?
Corporate sites take 3 to 4 weeks. Online stores run 2 to 6 weeks depending on platform scale. Hospitals are scheduled during consultation based on department count, booking integration scope, and medical advertising review.
Can existing store products and member data be migrated?
Products, members, and posts can all be migrated. Items that cannot move because of different encryption, such as passwords, go through a reset flow. Naver Pay and Kakao Pay — the two dominant Korean payment services — are reconnected on the same schedule as the domain switch.
When do SEO and GEO marketing results appear?
We submit the site for search engine indexing right after launch. Portal rankings usually move within 2 to 4 weeks, and AI citations appear over 1 to 3 months as data and trust accumulate. Timing varies with search and AI platform policy.
Free quote consultation
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