Fitts's Law
The time to reach a target depends on its size and distance.
In practice:Bigger buttons mean more clicks
Design & Usability
Web design agency: planned and built by one person.
Coday designs your website and programs it too: one contact from the first drafts to the finished code, at a binding fixed price. The websites of the Lindener Ratsstuben restaurant and of Batherm show what that looks like.
In short: Coday is a website design agency run by one person: Umutcan Emre Tezgel plans the layout, type and colours of your site and then codes it in Next.js, React and Tailwind CSS. Colours, typefaces and spacing are set down once in the code, so every page uses the same values. Coday builds for trades, restaurants and service providers; you approve the design and the build at interim reviews, and the source code is handed over to you at project completion.
01Starting point
01.1 · The Problem
A website that costs more than it earns
Outdated design, slow loading times, and lack of mobile optimization deter potential customers within seconds. Your expertise is undermined by an unprofessional digital presence.
01.2 · Our Solution
Web design with a clear next step
The design makes sure visitors see on every screen what you offer and how to reach you. Layout, text and controls all serve that one goal.
02Design rules
One design, set down in code.
Colours, typefaces and spacing are set in one place, and every page uses the same values. That is how codayweb.de is built; the preview shows the idea.
- Design in code, not tied to a theme
- Colours, type and spacing set in one place, as on codayweb.de
- Accessibility: a Lighthouse score of 100 for every reference measured on 16 October 2026
The Power of Tokens
One set of tokens for colour, type and spacing.
Primary Color
var(--color-accent-500)
Border Radius
1.5rem
Typography
font-display
03Before and after
The difference is visible.
A slider to compare: on the left a standard template, on the right a design with clear guidance.
Coday Design
Clear Guidance
Old Agency
Standard Template
Before
After
04Behavioral Design
Design that sticks.
Layouts follow known principles of perception, such as Fitts's law and Hick's law. The cards below show what each one means on a web page.
Neurodesign is design that draws on findings from neuroscience and psychology about how people perceive design and respond to it, often without being aware of it; the four principles below are examples from psychology.
Hick's Law
More options mean a longer decision.
In practice:Less navigation, clearer guidance
Von Restorff
The element that looks different is the one people remember.
In practice:CTA colour against everything else
Serial Position
The start and the end of a list are remembered best.
In practice:Most important first and last
05Process
From the first call to the handover
A free first call is followed by a quote with a fixed price. You approve design and build at interim reviews, and you receive the source code when the project is completed.
- 01
First call
The free first call is about your business, your customers and what the website should get done for you.
- 02
Structure and paths
The structure comes first: which pages exist and how visitors find their way to your offer and to an enquiry.
- 03
Visual design
We design the interface in line with your branding. You approve the drafts at interim reviews.
- 04
Build
The owner builds the approved design in code himself. You follow the progress on a staging link.
- 05
Handover
Up to three rounds of changes are included in the fixed price. You receive the source code when the project is completed.
What the design is built with
codayweb.de is built with these tools; your website uses the ones it needs. Design files, for example from Figma, are handed over if that is agreed.
- Next.jsFrontend
- ReactFrontend
- Tailwind CSSStyling
- SanityCMS
06Services
Web design in detail
- 06.1
UX/UI Design Details
Digital brand experience. User-centric design that makes your brand tangible. We design beautiful interfaces optimized for conversions.
Read more - 06.2
Design Systems
Fixed rules for type, colours and spacing, set down in code as on codayweb.de. More on the UX and UI design page.
Read more - 06.3
Website relaunch
From strategy to complete Redesign. We fundamentally modernize your web presence for a successful Relaunch. Grow your business with our expertise.
Read more
07Case study
From digital wasteland to a clear presence
How Batherm, a plumbing and heating firm in Wetzlar, got a website where customers book their free consultation online.
Batherm Webdesign Case Study
Frequently Asked Questions (FAQ)
How much does a website cost?
It depends on the scope: how many pages the website has, which features it needs and whether texts and images still have to be created. After a free first call you receive a quote with a binding fixed price. It only changes if you order additional work.
How many design revisions do I get?
The fixed price includes the revision rounds agreed in the quote, by default up to three. You see interim versions through a preview link and say what should change. Further changes come with their own quote first.
Can we work together if my business is far away?
Yes, Coday also works with businesses that are far away, because the collaboration runs by phone, online and by email. You have the first call with owner Umutcan Emre Tezgel by phone or online, and you accept the quote by signing it or by email. During the project you receive regular progress updates by email and see interim versions through a preview link. One client further afield is AKAN Dienstleistung, a building cleaning company in Gudensberg in northern Hesse, whose website Coday built.
How Coday does web design
At Coday, design and programming are done by the same person. Owner Umutcan Emre Tezgel designs the structure, typography and colours of your website and builds it himself with Next.js, React and Tailwind CSS, the same tools codayweb.de is built with.
It starts with a free first call, followed by a quote with a binding fixed price. Then come design, build and handover; you receive the source code when the project is completed. The websites of the Lindener Ratsstuben and of Batherm in Wetzlar show what that looks like.
Coday builds for businesses that want to be found and contacted online: trades, restaurants and service providers. Nobody can guarantee a position on Google; what Coday commits to is written in the quote.
Is a social media page enough instead of a website?