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polovnjak.net

A calculator for the cost of importing a used car into Serbia and Bosnia and Herzegovina: customs, VAT, homologation and first registration, in five languages.

Filed
2026-10-11
Topic
Shipping products
Reading
1 min
Tags
#web#cloudflare

The problem

Buying a used car abroad is cheaper only if the buyer knows what customs, VAT, homologation and registration will add at home, and the rules differ between Serbia, Republika Srpska and the Federation of Bosnia and Herzegovina.

Role

Everything: the calculator, the content, the site and its hosting.

Key decisions

  • Static pages from one source. One calculator is built into a separate static page for every place of registration, country of purchase and language, with canonical addresses, hreflang and a sitemap generated from it.
  • Official sources only. Every rule the calculator applies comes from an official source and is cited.
  • The edge as the server. The site is static files on Cloudflare; the contact form runs as a Function behind Turnstile and a rate limit.

Where it stands

Live, in Serbian (Cyrillic and Latin), Bosnian and English.

In this case study

  1. The problem
  2. Role
  3. Key decisions
  4. Where it stands
Dejan Demonjić

Designing and building secure, multi-tenant .NET platforms, and writing down the decisions behind them.

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© Dejan Demonjić. Written in Belgrade.