In 2025, 11,334 new vulnerabilities were recorded across the WordPress ecosystem, up 42% from the previous year. Plugins accounted for 91% of them, according to Patchstack’s State of WordPress Security in 2026 report.

Most business WordPress sites rely on plugins for everyday functions such as contact forms, SEO, bookings and integrations. When a known security weakness develops, it needs attention.

WordPress website maintenance keeps the software, security, backups, performance and uptime under regular watch.

Key takeaways

• WordPress website maintenance covers updates, security, backups, performance and uptime, not simply content changes.
• Plugins account for most newly recorded WordPress vulnerabilities, making ongoing maintenance important for security.
• For businesses, the key question is often who is responsible for keeping the website maintained.

What WordPress website maintenance actually involves

Changing a staff bio, adding a new service or uploading a photo is website content management. WordPress maintenance is the work happening behind the scenes to keep the software, security, backups and monitoring in order.

For most business websites, there are five main areas to consider.

1. WordPress core, plugin and theme updates

WordPress core, plugins and themes receive updates for security fixes, bugs, compatibility issues and new functionality.

Keeping up with regular website updates helps address known security weaknesses and compatibility issues across the site.

These updates need some care. A change to one plugin can occasionally affect another part of the website, which is why significant updates may be checked on a staging environment, a test copy of the website, before being applied to the live site.

2. Security scanning and monitoring

Security tools can help check a WordPress site for malware, suspicious changes and other signs that something may be wrong.

Without monitoring, a compromise can go unnoticed while the website continues operating. That’s particularly relevant for sites handling contact forms, customer information, user accounts or other business data.

3. Backups and restoration testing

Backups give you a recent copy of the website to recover from if something goes wrong. But having a backup and knowing it can be restored are two different things.

Restoration testing confirms the backup is complete and usable before you actually need it.

4. Performance monitoring

Performance monitoring helps identify what’s slowing the website down, whether that’s a plugin, large image, hosting issue or another change behind the scenes.

5. Uptime monitoring

Uptime monitoring checks whether the website is accessible and alerts the responsible person or provider when it isn’t.

Without it, the first indication of an outage can be a customer telling you the website is down. Like restoration testing, it’s easy to overlook when everything appears to be working normally.

Why WordPress maintenance matters for security

WordPress powers around 40% of websites globally, according to W3Techs. That scale makes known vulnerabilities in WordPress and its plugins attractive targets for automated attacks. For a small business, the risk isn’t necessarily being singled out. Automated tools can scan large numbers of websites for plugin versions with known vulnerabilities.

Once a serious vulnerability becomes public, attacks can follow quickly. Patchstack’s State of WordPress Security in 2026 found that for heavily exploited vulnerabilities, the median time to the first observed exploitation attempt was just five hours.

Keeping WordPress up to date helps, but updates can’t fix a vulnerability when a patch isn’t available yet. Patchstack found that 46% of vulnerabilities disclosed in 2025 hadn’t received a developer fix before public disclosure. Monitoring and a recovery plan matter for that reason too.

The security and compliance stakes for Australian businesses

Business websites often collect personal information through contact forms, accounts and enquiries. If that information is exposed through a compromised website, your business may have data breach obligations as a result.

Under Australia’s Notifiable Data Breaches (NDB) scheme, organisations covered by the Privacy Act may need to notify affected individuals and the Office of the Australian Information Commissioner (OAIC) when an eligible data breach is likely to result in serious harm.

Not every website security incident will meet that threshold. But businesses that collect personal information through their websites still need to consider their data breach notification obligations as part of the wider security picture.

Depending on the incident, responding to a compromised website can involve investigating what happened, removing malicious code, addressing the weakness, determining whether information was accessed and restoring the site to a known working state.

Preventative maintenance is much easier to plan for than dealing with those issues after a compromise.

WordPress maintenance is ultimately about ownership

Knowing what maintenance involves raises a more practical question: who is actually responsible for making sure it happens?

For many businesses, that’s where the real gap appears.

A website might have been built several years ago by one provider, hosted somewhere else and occasionally updated by an employee when something needs changing. Everyone assumes somebody is looking after the technical side, but nobody has clear ownership of it.

There are three common ways to handle that responsibility.

Do it yourself

DIY maintenance can make sense for a straightforward website when someone in the business has the time, confidence and a clear process to follow.

The challenge is consistency. Website maintenance competes with every other business priority, so updates, monitoring and backup checks can easily be pushed aside when things get busy.

Use a web agency or WordPress specialist

A web agency or WordPress specialist can be a good fit when the website is largely standalone or when the business needs specialist development and design support.

They can take clear ownership of the website itself. The gap can appear when a problem reaches beyond the website into email, Microsoft 365, a CRM or another system managed elsewhere.

Have your managed IT partner look after it

For businesses whose websites connect to the wider technology environment, managing the website alongside IT can streamline support and accountability.

If a website connects to Microsoft 365, business email, a CRM or other applications, having one provider understand both sides means less back-and-forth between separate teams when something goes wrong.

A managed IT partner won’t be the right choice for every website. A simple standalone site may be perfectly well served by a web specialist. But as the website becomes more connected to business systems and customer information, it makes sense to consider its maintenance within the wider IT and security picture.

Take control of your WordPress maintenance

BIZ-LYNX Technology supports websites for businesses across Perth and regional WA, alongside their wider managed IT needs.

Make sure someone has clear responsibility for maintaining your WordPress website, especially when it connects with customer information, business email or other systems. If you’re unsure who’s responsible or what maintenance is being done, talk to our Perth-based team and get a clearer picture of where things stand.

Frequently asked questions

Q. How often should WordPress website maintenance be done?

A. Maintenance should be ongoing, but not every task runs on the same schedule. Security issues may need prompt attention, monitoring can run continuously, and backup and restoration checks depend on how frequently the site changes.

Q. Aren’t automatic WordPress updates enough?

A. Automatic updates are useful for keeping software current, but that’s only one part of maintenance. They won’t confirm that your backups can be restored, alert you to every security issue or tell you when the website has gone offline. Updates can also occasionally affect other parts of the site, so some oversight is still important.

Q. Doesn’t my web host already maintain WordPress?

A. It might. Hosting packages vary, so check exactly what’s included.

A few useful things to confirm are whether your provider looks after WordPress core, plugins and themes; whether backups are tested; and who responds to security or uptime issues. Anything outside their scope needs to be covered elsewhere.

Q. How do I know whether my WordPress website is being maintained?

A. Ask one question: who is responsible for it?

There should be a clear answer, along with visibility over what’s being maintained. If nobody can tell you when updates were last checked, whether the site is monitored or whether its backups can be restored, there’s probably a gap to address.

Q. What if our WordPress website hasn’t been maintained for a long time?

A. If the site has been left for a long time, it’s worth checking its current state before applying a backlog of updates. Older plugins, themes and other components may no longer work neatly together, so making several changes at once can create problems.

A sensible starting point is to identify what’s currently running, what needs attention and whether significant changes should be tested away from the live site first.