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Web Design Istanbul:
Corporate Website
Development Agency

With more than 15 years of experience, we build corporate, conversion-focused websites from Istanbul. Strategy, design, development and SEO — all under one roof.

At Tasarım Devi, we approach web design not as an aesthetic exercise but as a measurable business decision. Our team carries your project from start to finish.

Web Design Istanbul Corporate Web Design Responsive & Fast Conversion-Focused 15+ Years of Experience

In Brief — What Is Web Design?

Web design is the process of building an organization’s digital presence as a coherent whole of user experience, visual identity and technical infrastructure. Professional web design agencies run research, UI/UX design, front-end development and SEO as one integrated process.

At Istanbul-based Tasarım Devi, our web design services cover user research, information architecture, UI/UX design and prototyping, responsive development, Core Web Vitals optimization and technical SEO. What sets us apart is that we run all of these as one strategic system.

What We Do

Web design services:
end-to-end capability.

Corporate Website

We build your brand’s digital face in line with its corporate identity, strengthening B2B communication.

Custom UI design
Content management system (CMS)
Multilingual support
Accessibility (WCAG 2.1)

Landing Pages & Campaigns

Single-goal, high-converting pages. Fast to launch and ready for A/B testing.

Conversion-focused UX flow
≥ 95 Lighthouse performance score
Form & CRM integration
Analytics & tracking setup

Headless & Performance Architecture

Headless CMS integration with Next.js or Astro — speed, security and scalability together.

Headless WordPress / Contentful
Static site generation (SSG / ISR)
CDN architecture and edge deployment
API-first approach

15+

Years in the industry

250+

Corporate projects delivered

95+

Average Lighthouse score

94%

Client satisfaction rate

01 — Strategy & Research

Not just website builders —
your business partners.

The most important difference between web agencies is understanding business strategy before technical production. On every project, we analyze the target audience, the competitive landscape and conversion goals in depth.

What we deliver isn’t just code. It’s a digital experience system that tells your brand’s story accurately, moves users to act and serves your business goals.

A branded interface illustration of the strategy and discovery phase: a draft site architecture, priority bars and scope labels

02 — UI/UX & Visual Design

Our approach to web design:
less, clearer, more effective.

We stay away from artificial complexity. We design typography, color and spacing around your brand’s character, and build a component library to preserve design consistency over the long term.

We deliver interfaces ready for every screen size that go beyond standard responsive design. Our mobile-first approach ensures a consistent experience wherever users access your site.

A branded illustration of a responsive interface mockup: a desktop browser window next to the same design on a mobile screen

03 — Development & Performance

Where we differ
from other agencies.

Our technical edge is defined by real performance metrics, not a “clean code” slogan. We build secure, HTTPS-ready, easy-to-maintain sites that meet Google’s Core Web Vitals standards from day one.

From WordPress-based CMS to headless architectures, we offer web design services for projects of every size. Your business requirements — not popularity — determine the technology.

A branded illustration of development and performance measurement: sample component code alongside loading, interaction and visual stability indicators

FAQ

Frequently Asked Questions
About Web Design

What sets Tasarım Devi apart from other web design agencies?

With over 15 years in the industry, we don’t treat web design as aesthetics alone. Every project combines user research, conversion goals and a technical SEO foundation — one partner from strategy to delivery.

Can I work with you from outside Istanbul or outside Turkey?

Yes. Our team is based in Istanbul, but we work digitally with companies across Turkey and abroad. Every stage, from the discovery meeting to delivery, can be run online.

How long does it take to build a professional website?

It depends on scope, but a corporate website is usually completed in 4–8 weeks. We keep project management transparent so the schedule stays on track.

Which technologies do web design agencies typically use?

Depending on the project, we recommend WordPress, a headless CMS, Next.js or fully custom development. Technology should serve business goals — chosen because it’s the most effective solution, not because it’s popular.

Do you provide support after the website launches?

Yes. Our maintenance plans cover security updates, content management and performance monitoring. Our relationship with clients doesn’t end at delivery.