10 essential tips for maintaining your WordPress site

Why WordPress maintenance is first a security matter

Maintaining a WordPress site covers three realities: security (updates, monitoring, backups), performance (page speed, database, caching) and durability (up-to-date content, component compatibility). All three matter, but they don’t weigh the same. A slow site loses visitors; a hacked site loses customers, personal data — which means a GDPR case with the Data Protection Commission — and sometimes weeks of business.

The most common attack has nothing sophisticated about it: bots continuously scan millions of sites for vulnerable versions of well-known plugins. The moment a flaw is published, the race begins between your update and their exploit. That is why every ignored update widens your attack surface — and why the tips below are ranked by decreasing risk, not by convenience.

The 10 WordPress maintenance tips, ranked by risk

1. Backups first — 3-2-1, and tested

Before anything else, set up automatic backups following the 3-2-1 rule: three copies of your data, on two different media, one of them off the server hosting the site. Plugins such as UpdraftPlus or BackWPup can schedule daily backups to external storage (Google Drive, S3, a remote server). The decisive point most sites neglect: test the restore. A backup you have never restored is a hypothesis, not a protection. Keep several versions: if the hack happened three weeks ago, yesterday’s backup is already contaminated.

2. Updates: core, themes and plugins, every week

WordPress core, your theme and every plugin receive regular security patches. Apply them at least weekly, after a backup, and test major updates on a staging environment when the site is critical to your business. Automatic core updates are a good safety net for minor patches. Remember the logic: a published flaw + an outdated plugin = an intrusion that is only a matter of days.

3. Declutter: every plugin is a way in

A deactivated plugin still sitting on the server can still be attacked. Delete unused plugins and themes, and before installing anything ask three questions: is the plugin actively maintained (recent updates)? Is it widely used and audited? Could you achieve the same result without it? A lean site — 10 to 15 well-chosen plugins — is both faster and safer than one running 40 extensions.

4. Strong passwords and two-factor authentication (2FA)

Brute-force attacks on /wp-login.php never stop. Enforce unique passwords stored in a password manager, enable two-factor authentication for all administrator and editor accounts, and limit login attempts. Remove the default “admin” account and the accounts of former contractors — ghost access is a classic cause of intrusion.

5. A security plugin and a web application firewall

Wordfence, Sucuri or Solid Security add file monitoring, a web application firewall (WAF), malware detection and alerts on suspicious activity. Complement them at hosting or CDN level (Cloudflare) to block the bulk of malicious traffic before it even reaches WordPress. A yearly security audit confirms the whole setup still holds.

6. HTTPS everywhere and security headers

The TLS certificate is a given (Let’s Encrypt is free), but check that no content still loads over HTTP and add security headers (HSTS, X-Frame-Options, a suitable Content-Security-Policy). Invisible to your visitors, decisive against session hijacking and content injection — and Google takes it into account.

7. Least privilege: few admins, the right roles

WordPress ships with roles (administrator, editor, author, contributor): use them. Whoever writes blog posts doesn’t need to install plugins. The fewer administrator accounts, the less a stolen password is worth. Review accounts quarterly — ten minutes that close doors.

8. Optimise the database

Post revisions, spam comments, expired transients: the database accumulates clutter that slows every query. WP-Optimize or WP-Sweep clean and defragment the tables in one click, and can do it automatically every week. A fast site means a better user experience and better rankings — Google measures speed through Core Web Vitals.

9. Monitor speed, uptime and errors

Measure regularly with PageSpeed Insights or GTmetrix (compressed images, active caching such as WP Rocket, a CDN if your audience is spread out), and set up uptime monitoring that alerts you if the site goes down — better to learn it from an alert than from a customer. A site that slows down or throws unexplained 500 errors is also a security warning sign.

10. Logs, analytics and a monthly review

Analyse your traffic with a GDPR-friendly tool such as Matomo (or a properly configured Google Analytics) and keep an eye on your security plugin’s login logs. A 30-minute monthly review — updates applied, backups restorable, accounts legitimate, unusual traffic spikes — turns maintenance into a routine instead of an emergency.

Hacked WordPress site: what to do right now

Your website is an asset of your IT system

The real question behind WordPress maintenance is not technical: who, in your business, is responsible for this asset? Who decides on updates, checks the backups, answers at 2am if the site goes down? In most SMEs the answer is “nobody” — or “the agency that built the site”, whose contract ended at delivery. A website follows the same rules as the rest of your IT: it needs an owner, not just a builder.