What are web development services?
Web development services cover everything needed to design, build, launch and maintain a website or web application: UX and UI design, front-end and back-end development, API integration, testing, hosting and ongoing support.
Website development vs web application development comes down to what people do on it: a website informs and converts visitors, while a web application is software your users log into, so it needs accounts, permissions, business logic and integrations. Most of our projects are custom web applications, and we also build responsive websites and run redesigns and migrations.
A custom build fits when your core process is the product. When your process is standard, an ecommerce platform, a headless CMS or Webflow usually costs less, and our guide to types of web development services compares the options.
What drives the cost of a web development project?
Five things move the price: scope (user roles, screens and business rules), the number and age of the systems you integrate with, compliance requirements such as GDPR or PCI DSS, the size and seniority of the team, and the timeline. A discovery phase turns each of these into a line you can inspect before you commit, and our web application development cost guide explains how they add up. Need a number sooner? A short discovery phase gets you an estimate you can plan a budget around.
Fixed-price vs time-and-materials contract: which fits?
A fixed-price contract works when requirements are clear after discovery: scope, timeline and budget are agreed up front, and changes go through a change request. Time and materials works when priorities shift from sprint to sprint, because you pay for the time spent and re-plan at every review. A dedicated team suits long-running products, and team extension adds specific skills, such as senior React or Node.js engineers, to your in-house team.
We usually recommend fixed price for a well-defined scope such as a website redesign, and time and materials for a product whose priorities will change once real users arrive.
How long does a web development project take?
It depends on scope and integrations, so the discovery phase ends with a timeline and milestones you can plan around. Because we work in two-week sprints, you see working software on a staging environment from the first sprint, not only at the end.
How do you choose a web development company?
Shortlist on evidence, then check the contract. Before you sign with any web development company, ask for:
- case studies that name the stack and the outcome, plus public reviews you can read yourself
- proof of security practice, such as ISO 27001 certification
- code ownership and IP assignment: who owns the code and the IP when the project ends
- a statement of work that lists scope, deliverables, acceptance criteria and how changes are handled
- a service level agreement (SLA) for support after launch
We recommend starting with a paid discovery phase: it is the lowest-risk way to see how a team works before you commit to the full build.
Should we choose React or Next.js?
Next.js is a framework built on React, so the choice is about rendering. Our default for anything public-facing is Next.js with the App Router, because pages that need search visibility, a fast first load or server-side data get them without extra plumbing. Plain React is fine for authenticated dashboards where search indexing does not matter.
When does a headless CMS make sense?
A headless CMS fits when content feeds several channels, such as a site, an app and a partner portal, or when developers need full control of the front end. For a single marketing site with standard layouts, an off-the-shelf CMS or Webflow costs less to run, and we would pick Webflow when the marketing team needs to ship pages without developers.
Can you modernize our legacy web application?
Yes. We assess the existing system first, then choose between rehosting, refactoring or a staged rebuild that keeps the old application running while new parts go live. Our replatforming and modernization services cover the full migration, and our guide to rebuilding legacy web apps explains how to pick the right path.
How do you build web apps that rank in search?
We use server-side rendering or static generation for pages that need to be indexed, and we keep Core Web Vitals within Google's "good" thresholds: LCP within 2.5 seconds, INP within 200 milliseconds and CLS below 0.1. INP replaced First Input Delay as a Core Web Vital in March 2024, and it is the first metric heavy client-side code breaks.
A CMS migration with 301 redirect mapping done before launch keeps your rankings: we map every indexed URL to its new address and crawl the staging site the way Googlebot will, as our website redesign guide explains step by step.
How do you handle accessibility and security?
We build to WCAG 2.2, the W3C standard published in October 2023, with automated axe and Playwright checks in CI and manual screen-reader audits by an IAAP-certified accessibility specialist. For security, we map each risk in the OWASP Top 10 to a control in code review and CI, under Netguru's ISO 27001-certified security management.






