How long does a business website last?

Key takeaways

A well-maintained business website typically lasts 4 to 6 years before its platform or structure needs replacing. An unmaintained one can become a liability in 2 to 3 years. The lifespan is set far more by maintenance and platform choice than by design fashion.

• 4 to 6 years is a typical lifespan for a maintained small business site.
• 2 to 3 years is common for sites nobody updates after launch.
• Platform support ends the life of a site faster than design trends do.
• Content can be kept alive indefinitely. Themes and plugins cannot.

What decides how long a website lasts?

Website lifespan is the period during which a site stays secure, fast, editable and aligned with the business. Three factors decide it: whether the platform keeps receiving updates, whether someone maintains the site, and how much the business changes. Design style is a distant fourth.

A five-year-old site on a supported platform with current content can still be doing its job well. A two-year-old site built on an abandoned theme may already need replacing.

• Signs your business needs a new website

How long do different types of website last?

The platform sets the outer limit. These ranges come from our audit and delivery work with UK SMEs and assume basic maintenance is being done.

• Hosted builders (Squarespace, Wix, Shopify themes): 3 to 5 years, then templates date.
• WordPress with a commercial theme: 4 to 6 years, limited by theme and plugin support.
• Custom-coded sites: 5 to 8 years, limited by how expensive changes become.
• Sites on a former supplier's proprietary system: as long as that supplier stays in business.

• How often should you redesign a website?

What shortens a website's life?

Neglect shortens it most. Skipped updates turn into incompatible plugins, old server software and security exposure, and at some point it becomes cheaper to rebuild than to catch up. Heavy page builders and bespoke features that only one developer understands shorten it too.

• Running software past its end of life, such as PHP 8.1, which lost security support on 31 December 2025.
• Plugins or themes abandoned by their developers.
• Edits made directly to theme files, so updates overwrite them.
• No documentation of how the site was built or who has access.

• Outdated PHP version: what it means for your website
• Website technical debt: when to stop patching

How can you extend the life of a website?

Keep the platform updated, keep content current and avoid building the business's future on features only one person understands. A basic care plan, typically £50 to £150 a month in the UK, costs far less than an early rebuild.

Use a mainstream platform, a supported theme and as few plugins as possible. Keep a record of accounts, access and customisations so a new supplier can take over without starting again.

• Website maintenance costs in the UK

When is a long-lived website a problem?

When age hides decline. A site that has run for eight years without problems can feel safe while it quietly loses ground: slower than competitors on mobile, missing the services added since launch, and describing a business that no longer exists.

Age alone is not the issue. The question is whether the site still meets current standards for speed, security and clarity, and whether it describes the business you run today.

• Out of date website content: what to check and fix

Which parts of a website last longest?

The domain, the URL structure and good content last longest, and they carry most of a site's long-term value. The theme, plugins and design have the shortest lives. That is why a well-planned rebuild keeps the first group and replaces the second.

Search engines build up trust in a domain and its pages over years. A page that has ranked for your main service for five years is an asset, and a rebuild that changes its URL without a redirect throws that asset away. Treat URLs and proven content as permanent, and the platform as replaceable.

• Domain: decades, if renewed and owned by the business.
• URL structure and ranking content: as long as you protect them.
• Platform and theme: typically 4 to 6 years.
• Plugins and integrations: often 2 to 4 years before replacement.

• Website migration SEO checklist

What does this look like in practice?

A pattern we see in UK trades businesses: a WordPress site launched seven years ago, still ranking for local searches, but running an abandoned theme and an unsupported version of PHP. The content is valuable; the foundation is not.

The right move there is a rebuild that keeps every ranking URL and the best content, on a supported platform, rather than a fresh start that throws away seven years of search history.

• See client work
• Website Design & Development for UK businesses

Website lifespan checklist

Five checks that tell you roughly how much life your site has left.

• Check the platform, theme and plugin versions against their supported releases.
• Check the server's PHP version against the official support dates.
• Test key pages on mobile in PageSpeed Insights.
• Try editing a page and adding a new one yourself.
• Compare the services on the site with the services you actually sell.

Next step

If you are not sure whether your website has a year left or five, we will run these checks with you in 30 minutes and tell you what to plan for.