From website to business software.
One point of contact, built to measure, with a fixed price up front.
Websites
New websites and redesigns of existing sites. Together we decide what visitors need to find and do; in a redesign, existing addresses keep working.
- Structure and copy
- Custom design
- Phone, tablet, computer
- Basic SEO
- Existing URLs kept
- Easy to edit yourself
Fixed price after analysis

Custom web applications
Software in the browser, built around your processes: where Excel sheets, e-mails and paper forms fall short.
- Client portals
- Planning and follow-up
- Quotation and ordering modules
- Dashboards and reporting
- Users and permissions
- Backend and database
Fixed price after analysis
Integrations and automation
Systems that do not talk to each other cost time. CAESTOR connects accounting, CRM, webshop and calendar via APIs and automates recurring work.
- API integrations
- Data synchronisation
- Automated e‑mails and documents
- Import and export
- Forms to systems
- Error alerts and logging
Fixed price after analysis
Maintenance is part of every service
Hosting, backups, updates and follow-up come with every website, application and integration.
- Hosting and domain
- Backups
- Security updates
- Monitoring
- Small changes
- One point of contact
Privacy and GDPR, included as standard
For every project we map out which personal data is processed, why, where and for how long.
Data inventory
Which personal data, for what purpose and on what legal basis.
Data processing agreement
Clear agreements when CAESTOR hosts or processes data for you.
Cookies and consent
Only strictly necessary cookies without consent.
Data minimisation
Forms and databases ask for and store no more than necessary.
Security
Encrypted connections, access rights, backups, updates.
Data subject rights
Access, correction and erasure made practical.
Frequently asked questions
Is my website or application GDPR-compliant?
For every project we draw up a data inventory: which personal data is processed, for what purpose, on what legal basis, where it is stored and how long it is kept. We build forms, hosting and integrations on that basis, and when CAESTOR hosts or processes data for you, we sign a data processing agreement. You remain the data controller: you decide what the data is used for and answer requests from data subjects; we make that technically possible.
What does a website or application cost?
Every project gets a fixed price up front, after a short analysis of what it needs to do and which systems it works with. Additional work is only done with your approval. The proposal also states what hosting and maintenance cost after delivery.
Does it work with my accounting package or CRM?
Usually, yes. Most accounting, CRM and webshop packages have an API through which systems exchange data. In the analysis we look at which data needs to be transferred, in which direction and how often, and whether your package supports that. If a package has no API, we look for an alternative, such as an automated import or export.
Who owns the code and the data?
Your data and content remain yours, as does your domain name. You always have access to your data and can export it. What happens to the source code, ownership or right of use, is set out in the proposal.
What happens after delivery?
Maintenance is part of every service: hosting, backups, security updates and follow-up. Small changes are made on request; larger extensions get their own proposal with a fixed price. You keep one point of contact.