Custom web development
Fast, secure websites and web apps built around how your business works — from a sharp company website to a client portal or SaaS product — easy to update and ready for Google and AI search.
- Fixed quote before we start
- Delivered in days
- You own everything
Is this for you?
Custom web development is a good fit when one of these sounds familiar.
- Your website looks dated or loads slowly on phones
- You need a portal, dashboard or web app — not just pages
- Visitors leave without contacting you
- Your team can't update the site without a developer
What we build
From a single landing page to a full web application — each one fast, secure and easy to run.
Business & company websites
Clear structure, sharp copy and fast pages that make your offer easy to understand — and easy to buy.
Web applications
Client portals, booking systems, dashboards and SaaS products, with accounts, roles and payments.
Landing pages
One page, one goal: built to turn campaign traffic into inquiries, with fast load times and clean tracking.
Easy editing
Update pages, posts and products yourself — WordPress or a headless CMS, set up the way your team works.
APIs & integrations
Connect your CRM, payments, booking, email and analytics — or build the API your app needs.
AI features
Smart search, an assistant that answers from your own content, and agents that reply to and qualify new leads.
SEO & AI-search foundations
Technical SEO, schema markup and fast Core Web Vitals, so Google and AI assistants can understand and cite you.
Redesigns & migrations
Move to a faster, modern stack without losing rankings — redirects, metadata and content carried over.
Care & maintenance
Updates, backups, security checks, uptime monitoring and small changes every month.
What every website and web app includes
The basics that decide whether a site brings customers — built in from the start, not sold as extras.
- Mobile-first design that works on every screen
- Built to pass Google's Core Web Vitals
- Titles, descriptions, schema markup and an XML sitemap
- Structured for AI search: clear answers, FAQs and llms.txt
- Readable contrast, keyboard navigation and alt text
- Analytics, conversion tracking and a cookie banner
- HTTPS, spam-protected forms and reliable hosting
- Source code in your repository, plus a handover guide
This website is an example
zenraai.com is built the way we build client sites: hand-coded, fast on a phone, readable on every screen, with structured data on every page, an llms.txt file for AI assistants, and analytics with a consent banner.
Fast by design
No heavy page builders or plugins — lean code that loads quickly even on mobile networks.
Search and AI ready
Clean titles, schema markup, a sitemap and clear answers that assistants can quote.
Measured from day one
Every button that matters — quotes, downloads, WhatsApp — is tracked as an event.
Privacy built in
Analytics and advertising tags ask for consent where the law requires it, and anyone can switch them off in Cookie settings.
How the project runs
Clear stages, a fixed quote and a working preview while we build — most projects are delivered within days.
Discovery & scope
Goals, users, pages or features, and the content and examples you like — agreed in writing.
A sitemap or feature list and a fixed quote
UX & design
Wireframes and designs in your brand for the key pages and screens, reviewed together.
Designs to review and approve
Build with live previews
We build fast, write or polish the copy, and share a working preview link as we go.
A live preview link while we build
Test & launch
Speed, security, accessibility and every device checked; domain, analytics and redirects set up.
A launched site and a handover session
Care & grow
Optional monthly updates, new features, content and improvements based on real data.
A monthly report and plan
Technologies we use
We pick tools that suit your project and your team. A typical selection:
Front-end
Back-end & data
CMS & hosting
Ways to work together
Start with a fixed-scope project, or keep us on monthly — whichever fits the work.
Fixed-scope build
A defined website or web app with one price, paid by milestone.
Best for: new websites, web apps and redesigns.
Billing: deposit to start, then by milestone.
Monthly development
New features, pages, content and improvements every month.
Best for: products and sites that keep growing.
Billing: monthly, flexible terms.
Care plan
Updates, backups, security checks and small changes.
Best for: keeping a site fast, safe and current.
Billing: a simple monthly plan.
Common questions
About custom web development. Can't find your answer? Send us your question. Guide: Desktop app vs web app
How much does a custom website or web app cost?
It depends on your budget and on what you need — the pages or features, the integrations and who writes the content. Start by filling in the project form and sharing your idea, even if it's rough. We'll reply with a free estimate, and after a short chat you get a fixed quote before any work starts.
How long does it take?
Fast. Landing pages and business websites are usually delivered within a few days. Bigger web apps with accounts, payments or dashboards usually take about 5–6 days — sometimes a little more or less, depending on scope. Your proposal includes the agreed delivery date.
What's the difference between a website and a web app?
A website mainly presents information and brings inquiries. A web app is software people log in to and use — a client portal, a booking system, a dashboard or a SaaS product. Many businesses start with a website and add app features later.
Can I edit the website myself?
Yes. We set up easy editing for the pages and posts you change often, and show you how to use it in a short handover session.
Will my website rank on Google?
We build every site on solid SEO foundations: speed, structure, metadata and schema. Rankings also depend on content and competition, so we can help with ongoing SEO after launch — and we never promise a #1 position.
Can you connect it to our CRM, payments or booking system?
Yes. We integrate the tools you already use — CRMs, payment providers, booking, email and analytics — through their APIs.
Can you redesign my site without losing rankings?
Yes. We map every old URL to the new one, keep or improve titles and metadata, and set up redirects so search engines and visitors land in the right place.
Who owns the website and the code?
You do. The code lives in your repository, and the domain and hosting are in your name — often on a free or low-cost plan.
Will my website show up in ChatGPT, Gemini and other AI answers?
We build every site so AI assistants can read and cite it: clear answers, structured data, fast pages, a sitemap and an llms.txt file. Whether an assistant mentions you also depends on your content and your reputation across the web, so we never promise a specific result.
Often paired with
Let's build something that performs.
Share your current site or your idea, and what you want visitors to do. We'll reply within one business day with questions and next steps.
Prefer email? Write to support@zenraai.com