Websites

Sites I designed and built

Corporate sites for companies and individual clients, product landing sites for my own apps. On most of them I ran the entire process, from design to development and from content to the technical SEO groundwork.

6sites live today
2client projects
4my own products
2025the year I moved into web and SEO

Security services

Alliance Güvenlik

allianceguvenlik.com

Client project

A corporate website for a company working in the security industry. The design, the development and the entire technical SEO groundwork are all mine.

Roles I took on

Design
Development
Technical SEO
Launch

Corporate web
Responsive design
Technical SEO
Schema.org
Core Web Vitals
Search Console

Open the site

Healthcare · medical aesthetics

Dr. Doğan Uysal Medikal Estetik

drdoganuysal.com

Client project

A personal brand site for a physician working in medical aesthetics. It was built around an appointment-driven user flow, a mobile-first design and search engine visibility.

Roles I took on

Design
Development
Technical SEO
Local SEO

Personal brand
Mobile-first design
Appointment flow
Technical SEO
Local SEO
Schema.org

Open the site

Food waste · mobile app

Vakti Geçmeden

vaktigecmeden.com

My own product

The landing site for my own app, Vakti Geçmeden. Pages explaining the product, a business sign-up form and app store links, designed together with the brand identity.

Roles I took on

Brand identity
Design
Development
Content
SEO

Product landing site
Responsive design
Technical SEO
Content strategy

Open the site View the app

Cinema subscription · mobile app

Sinepia

sinepia.com

My own product

The landing site for Sinepia: pages explaining the membership model, a step-by-step walkthrough of how it works and pre-launch information.

Roles I took on

Design
Development
Content
SEO

Product landing site
Responsive design
Content strategy
Technical SEO

Open the site View the app

Social marketplace · mobile app

Hadi Yapalım

hadiyapalim.app

My own product

The landing site for Hadi Yapalım. Pages covering the app's two ways of being used, along with its mission and vision.

Roles I took on

Design
Development
Content

Product landing site
Responsive design
Content strategy

Open the site View the app

Personal portfolio

demirtasdemir.com

My own product

The site you are looking at right now. Coded from scratch in HTML, CSS and vanilla JavaScript, without any framework. Light/dark theming, accessibility and search engine visibility were planned in from the start.

Roles I took on

Design
Development
Content
Technical SEO

HTML5
CSS3
Vanilla JavaScript
Theming with CSS variables
IntersectionObserver
JSON-LD structured data
WCAG AA contrast
Technical SEO

Open the site

Only live sites are listed here

Some of the sites I delivered are no longer online: a few of the businesses I worked with shut down, and their sites went down with them. Rather than link to a dead address, I chose to list only the ones still standing. Beyond these, I supported many clients on the mobile app side; that work does not appear on this page.

Solo work

The design, the code, the content layout, the technical SEO work and the launch of these sites are all mine, the entire process. I delivered every one of them on my own.

How I work

Delivering a site is not the same as finishing the design. I follow the same order on every project: I do not start designing until the content and the target audience are clear; I build the design mobile-first; and after development I treat technical SEO (structured data, sitemap, page speed, accessibility) as a separate stage of its own.

I do not walk away once it is live either: setting up Search Console, tracking indexing and fixing things when needed are all part of the same job.

Need a website?

A corporate site, a personal brand site or a product landing site — I handle it end to end, from design through launch and on to search engine visibility.

Send an email Services I offer My mobile apps