
Technical debt communicating: How to convince management
**Technical debt** – a term that can often be heard in IT departments, but in management can provide questioning views. Similar to financial debt, technical debt can also be...

Estimate the monthly cost of maintaining your website, online shop or web app – including updates, backups and SLA.
In brief
Der Rahmen für Website-Wartung ist 149 – 2.113 € zzgl. MwSt.. Technikbasis und SLA ändern den Umfang in derselben Spanne.
The upfront cost can be spread over 72 months. Terms are on the software financing page.
The calculation follows six visible stages. All figures remain planning values until scope and assumptions have been reviewed.
1. Capture inputs
The calculator records the visible project, volume, complexity and operating parameters selected on this page.
2. Add fixed components
Fixed base modules and selected add-ons are added without mixing them with recurring charges.
3. Apply multipliers
Quantity, complexity and scope factors multiply only the cost components identified for them in the calculator model.
4. Create the range
The calculator applies its documented lower and upper uncertainty factors to the base result; ROI views keep investment and savings visible separately.
5. Round and calibrate
Monetary result fields are rounded to the nearest whole euro. Public project-cost components are calibrated with the centrally maintained display factor.
6. Classify the result
The result is shown as non-binding guidance. A binding quote requires scope, data, integrations, risks and acceptance criteria to be reviewed.
Efficiency or discount factor: A central display factor of 0.7 is applied to public project-cost components to keep all calculators aligned with the currently reviewed pricing basis. It is not a customer-specific discount; customer-entered wages, revenues and existing operating costs are not reduced.
Why this is not a binding quote: The calculator cannot verify complete requirements, third-party dependencies, data quality, legal constraints or acceptance criteria.
Concrete project profiles with assumptions and indicative budgets—useful for internal alignment alongside the calculator.
FAQ
Maintaining a corporate website starts at around EUR 250–450 per month excl.
VAT (updates, backups, security patches). Online shops run EUR 450–900 due to payment and plugin updates; custom web apps EUR 600–1,500 depending on SLA. The calculator narrows the fee by type, technology and service level.
In almost all cases, yes: regular small updates prevent expensive emergency call-outs after hacks or incompatible plugin updates.
A single emergency recovery quickly costs six times a monthly fee – not counting the downtime itself.
Typically included: CMS/plugin updates, security monitoring, backups with restore tests and a monthly status report.
New features, redesigns or larger content work run as separate orders – as a separate order after a short briefing.

Discuss a maintenance contract
We review your website or shop and propose a suitable maintenance package.
Standard (response within 1–2 business days) is enough for most corporate websites.
Extended (same business day) is recommended for shops and lead generation. Premium with guaranteed response times including weekends targets revenue-critical systems.
WordPress updates follow standardised procedures and can be heavily automated.
TYPO3 and shop systems need more testing per update; custom applications additionally require deployment pipelines and regression tests – but avoid many plugin risks.
SEO monitoring (from about EUR 150/month) tracks rankings, crawl errors, load times and broken links.
Problems surface after days instead of months – especially after updates or content changes that can silently cost rankings.
| Model | When it fits | Budget & flexibility | Typical risks |
|---|---|---|---|
| Fixed price (fixed scope) | Clearly defined scope, stable requirements, repeatable delivery. | Predictable total cost; little room for change without a change order. | Scope creep leads to change orders or quality trade-offs. |
| Time & Material | Discovery, legacy, evolving requirements, or close collaboration. | Maximum flexibility; budget transparent via hourly or daily rates. | Without prioritisation, effort can grow—backlog and reviews matter. |
| Retainer / maintenance package | Ongoing operations, updates, small features, and support. | Agreed capacity per month; predictable follow-on cost. | Large changes may still need a separate estimate. |
| Hybrid (milestone + T&M) | MVP or phased releases with clear go-lives, then iterate. | Core delivery fixed price; extensions on a time-and-materials basis. | Define contractually what is in scope vs. extra work. |
Calculators on this page provide indicative ranges; we choose the right model with you based on risk, scope, and planning horizon.
The ranges shown are indicative. For a binding quote we discuss scope, priorities and funding options in a free intro call. Many digitalization projects qualify for grants – try our funding calculator.
Browse all cost calculators, explore services and typical solutions. Questions about website maintenance? Contact us.
After using the website maintenance calculator, validate assumptions in a short intro call.
Browse all cost calculators in the costs overview.
What does your maintenance fee cost?
Interactive estimate based on your inputs.
Non-binding project range from the software cost calculator: EUR 10,332 – 372,623 excl. VAT.
Methodology: The estimates are based on historical project data, complexity drivers and standard implementation assumptions. Results are a non-binding indication only; effort and price must be calculated individually.
If you are still deciding
If you are ready to implement
Calculator overall range
EUR 5,600–84,000 excl. VAT, depending on SLA and system criticality
The overall range is derived from the valid parameters of the relevant cost calculator.
Typical duration
2–16 weeks to establish the operating model
Main risk drivers
Non-binding indication
This result is only a non-binding indication based on typical assumptions. Effort and price must be calculated individually for your project.
A transparent four-step process for validating the Website Maintenance indication with concrete requirements.
1. Confirm scope and target outcome
We clarify the business outcome, user groups, and boundaries relevant to Website Maintenance.
2. Review data, interfaces, and risks
We validate integrations, data quality, security, compliance, and operational dependencies.
3. Check the calculator assumptions
We compare the selected parameters with the real system landscape and document deviations.
4. Prepare the precise quote
You receive a scoped proposal with milestones, exclusions, price model, and next decision point.
Blog posts that put budget, effort and typical project paths for this calculator in context.

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