Updated October 2026
Quick answer: WordPress maintenance means keeping WordPress core, plugins, themes and PHP up to date, backing up, scanning for malware and fixing anything an update breaks. Most business websites need updates checked at least monthly, with security patches applied as soon as possible. Skipping maintenance is the most common reason WordPress sites get hacked.
WordPress powers over 40% of all websites. It’s flexible and easy to use, which is exactly why it’s such a popular target for hackers. Owning a WordPress website isn’t “set and forget”. Like a car, it needs regular servicing to stay safe, fast and working properly.
This guide explains what WordPress maintenance involves, what happens if you skip it, and how to decide whether to do it yourself or hand it to specialists.
What does WordPress maintenance include?
A good maintenance routine covers these tasks:
- Updating WordPress core, the software at the heart of every WordPress site.
- Updating plugins and themes, which add features and control the design. This is where most security holes are found.
- Keeping PHP and the database up to date on the server, and making sure the site stays compatible.
- Backups, stored somewhere other than the website’s own server, and tested so you know they can be restored.
- Malware scanning and monitoring, so problems are caught early.
- Removing unused plugins and themes, which can still be exploited even when they’re switched off. See inactive WordPress plugins: keep or delete?
- Checking the site after updates and fixing anything that has broken.
WordPress maintenance checklist
| Task | How often |
|---|---|
| Apply security patches for core and plugins | As soon as they’re released |
| Apply other plugin, theme and core updates | At least monthly |
| Back up files and database | Daily for busy sites; at least weekly |
| Scan for malware | Daily |
| Check Site Health and PHP version | Monthly |
| Remove unused plugins, themes and user accounts | Quarterly |
| Test that a backup can be restored | Every six to twelve months |
Why WordPress updates matter
WordPress core and plugins change constantly. New features are added, bugs are fixed and, most importantly, security holes are patched. Updates:
- Close security holes. Once a vulnerability is made public, automated attacks start looking for sites that haven’t patched it, often within days.
- Keep your site compatible. WordPress runs on PHP and a MySQL or MariaDB database. Hosts upgrade these regularly, and old plugins can stop working. See why upgrading PHP matters.
- Improve speed and reliability. Updates often include performance improvements.
Aren’t automatic updates enough?
WordPress can update itself automatically, and many hosts offer auto-updates for plugins. That helps, but it isn’t a maintenance plan:
- Major updates can clash with your theme or other plugins and break the site, sometimes with nobody noticing until a customer complains.
- Premium plugins often don’t update automatically, because they need a current licence.
- Abandoned plugins stop receiving updates at all. Someone needs to notice and replace them.
- Auto-updates don’t back up your site, scan for malware or clean up after a hack.
Good maintenance pairs updates with checks that key pages, forms and payments still work.
Why fewer plugins is better
Every plugin is more code to update and another possible way in for attackers. Plugins from different developers can also conflict with each other. Keep only what you actually use, choose well-supported plugins with a good update history, and delete the rest.
What happens if you don’t maintain WordPress?
- Hacking and malware. Out-of-date plugins are the most common way WordPress sites are compromised. A hacked site can leak customer data, send spam, redirect visitors to scams and get blacklisted by Google.
- Broken features. Forms, payments and integrations can quietly stop working when the server is upgraded.
- A bigger bill later. A site left for years usually needs a costly clean-up or rebuild, rather than small, regular updates.
Read more about why websites break all by themselves.
DIY or professional WordPress maintenance?
If you’re comfortable with WordPress, have a simple site and can restore a backup yourself, you can manage basic updates. For business-critical sites, e-commerce, membership sites or sites with custom code, professional maintenance is usually cheaper than fixing a hacked or broken site.
When comparing providers, ask:
- How often do you apply updates and security patches?
- How often do you back up, where are backups stored, and have you tested restoring them?
- Do you scan for malware, and what happens if the site is hacked?
- Can you look after my site where it’s currently hosted?
Frequently asked questions
How often should WordPress be updated?
Apply security patches as soon as they’re released, and check for other updates at least once a month.
Can a WordPress update break my website?
Yes, occasionally, usually when a plugin or theme isn’t compatible with the update. That’s why testing updates and having a recent backup matter.
Do I need to change hosts to get WordPress maintenance from Itomic?
No. We can maintain and patch WordPress websites wherever they’re hosted.
Let us look after your WordPress site
Itomic’s website security contracts keep WordPress, Drupal and Laravel websites patched against the latest security threats, and our Australian hosting includes backups. We’ve been looking after Australian organisations’ websites since 2000. Talk to us about your site.
