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Custom web development

When you reach the limits of off-the-shelf platforms, we build your site in code, with full control and high performance.

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Web design · Istanbul · Maslak

In short

What is Custom web development? The answer in one paragraph.

Roicool's custom web development service covers requirements analysis, architecture and technology choice, SEO and speed designed around server-rendered pages, a headless CMS or admin panel, integrations, testing, launch and documentation. The code is kept in the client's repository.

Last updated: 21 October 2026View as Markdown

Your site needs application logic that off-the-shelf platforms don't cover.

Four problems we solve.

  • Your site needs application logic that off-the-shelf platforms don't cover.

  • Performance is critical because of very high traffic or a very large number of pages.

  • You need deep integration with your own systems.

  • You want full control over the infrastructure and data.

Scope

What we do

01Requirements and architecture
01

Requirements and architecture

Features, content model, integrations, traffic and maintenance expectations; technology choice.

Deliverable · Technical architecture document
02Front end
02

Front end

Server-rendered pages, accessible components, a performance budget.

Deliverable · Source code
03Content management
03

Content management

A headless CMS or admin panel; a draft, review and publish workflow, multiple languages.

Deliverable · The launched site
04SEO and GEO foundations
04

SEO and GEO foundations

Clean URLs, metadata, structured data, a sitemap, content present in the HTML.

Deliverable · Documentation and maintenance
05Infrastructure
05

Infrastructure

Hosting, continuous integration, monitoring; for ongoing management, server management and security.

Price: by scope, written in the proposalAsk for a proposal

Cases

Results, with their method. Four cases from this service.

All case studies
  • Modaltrans case cover: an AI visibility score of 24+
    • Modaltrans
    • Digital marketing for logistics

    Modaltrans SEO case study: organic and AI visibility

    Read the Modaltrans case

    Semrush AI visibility score (domain overview); 0 at the start of the project · 6 months

  • Serkan Hezar case cover: a 150% increase in appointments
    • Serkan Hezar
    • Medical tourism

    Performance marketing optimization: 150% increase in appointments

    Read the Serkan Hezar case

    Approved appointments entering the clinic's system; advertising budget unchanged · 3-month optimization period

  • Royal Hair case cover: patient flow from zero in 2 months in health tourism, the Royal Hair logo
    • Royal Hair
    • Medical tourism

    How to generate patient flow from scratch in 2 months for medical tourism

    Read the Royal Hair case

    CPL in niche countries, compared to the competitive main markets · First 2 months

Team and proof

The team that does the work, the result we measured. Our rating and our badges can be checked.

Clutch reviewsClutch
5.0★★★★★8 verified reviews

“Roicool knew what they were doing and were ready to answer our questions with their expertise anytime.”

Sena Miskioğlu, SESTEK Marketing Manager ·
Clutch profile
Case result

150% Approved appointment increase

Approved appointments entering the clinic's system; advertising budget unchanged · 3-month optimization period

Read the Serkan Hezar case
Team

Strategy, content, development and measurement in one team.

projects
13
cases
9
Salih Erdem ŞahinSenior Web Developer · Owner of this service

Frequently asked questions

  1. When does a site need custom code?

    When you need application logic that off-the-shelf platforms cannot handle, high traffic, custom integrations or full control. For most content-led corporate sites, a platform such as Webflow is faster and more economical.

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  2. Which technologies do you use?

    Modern JavaScript frameworks on the front end (e.g. Next.js), a headless CMS or custom admin panel for content, and cloud infrastructure for hosting. We choose by the requirements and by your team's capacity to maintain it.

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  3. Who owns the source code?

    Unless the project contract says otherwise, the delivered source code and documentation are yours; the code is kept in your own repository account.

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  4. How will we update content?

    Through a headless CMS or an admin panel; letting the marketing team update pages and content without a developer is part of the design.

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  5. Is a custom-coded site a disadvantage for SEO?

    Not if it is built right. When server-rendered content, clean URLs, metadata, structured data and speed are designed in from the start, custom-coded sites are strong for SEO.

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Question not here? Write to us

Clutch5.08 reviews (5.0 out of 5) (opens in a new tab)

Let’s start

Let’s find where to start, together.

In a 30-minute intro call we listen to your goals and agree on the right first step.