Our Location
304 North Cardinal St.
Dorchester Center, MA 02124
Monthly WordPress Maintenance Checklist: Security and Error Monitoring
A monthly WordPress maintenance routine prevents the problems that turn into emergencies. Here's the security and error monitoring checklist that covers the essentials.
A WordPress site doesn’t stay healthy on its own. Plugins accumulate, updates get skipped, logs fill up, security configurations drift, and small issues that could have been caught early become expensive problems. A regular maintenance routine keeps this under control — and takes far less time per month than dealing with the fallout when something goes wrong because nothing was checked.
This checklist covers the most important monthly maintenance tasks across two categories: security and error monitoring. Both are essential; neither is optional for a site that matters.
Monthly Security Checklist
☐ Update WordPress core, all plugins, and all themes
This is the single highest-impact maintenance task. The majority of WordPress compromises exploit vulnerabilities in outdated plugins and themes. Security patches are released constantly, and the window between a vulnerability being disclosed and it being actively exploited is often days. Run updates monthly at minimum — weekly for sites with a lot of third-party plugins.
Before updating, confirm your site has a recent backup. After updating, check your error log for new PHP errors — WordPress site errors after an update are common and usually point to a plugin compatibility issue that’s fixable quickly if caught early.
☐ Review BruteFort login logs
Open BruteFort → Logs and review lockout events from the past month. You’re looking for patterns: IPs that appear multiple times across separate lockout events are persistent attackers worth moving to the permanent blacklist. A sudden spike in lockout volume that’s new this month suggests an active campaign targeting your site. Regular log review turns the audit trail into actionable intelligence rather than just a record of what happened.
☐ Verify your login protection settings are active
Confirm that BruteFort’s rate limiting is enabled, your custom login URL is still active (test it in a private browser window), and your IP whitelist entries are current. IP addresses change — if your office or home IP has changed since you last added it to the whitelist, update it now before tightening any lockout settings. Also verify geo blocking is configured if you had it enabled, as settings can occasionally reset after plugin updates.
☐ Audit admin user accounts
Go to Users in your WordPress dashboard and review admin-level accounts. Remove any that shouldn’t be there — old contractor accounts, test accounts, or anything you don’t recognise. Creating a backdoor admin account is one of the first things an attacker does after gaining access, so unfamiliar accounts are a serious warning sign. If you spot one you didn’t create, treat it as a potential compromise and investigate immediately.
☐ Verify site backup is working
Confirm your backup plugin or hosting backup is running and completing successfully. Check that the last backup completed without errors and that files are actually being stored offsite. A backup that silently fails for three months is no backup at all. Restore a small file from the backup periodically to confirm the backup is actually usable.
Monthly Error Monitoring Checklist
☐ Review your WordPress error log for new PHP errors
Open Logmate → Logs and filter by PHP errors. Sort by occurrence count — the highest-frequency entries are where to start. New errors that appeared this month — especially ones that coincide with an update — are the priority. WordPress PHP errors that happen on every page load indicate an ongoing problem affecting all visitors; ones that happened once and not since are lower priority.
Pay particular attention to deprecated function notices. These are low-urgency individually, but a plugin generating hundreds of deprecations is likely unmaintained and becoming a future compatibility risk as PHP and WordPress versions advance.
☐ Check for JavaScript errors affecting visitors
Filter Logmate’s Logs to show JavaScript errors. These don’t appear in the PHP debug log and are completely invisible unless you have Logmate’s JS error capture enabled. High-occurrence JS errors affecting the front end — checkout flows, contact forms, interactive menus — directly impact conversions and user experience. Monthly checks catch these before they’ve been silently broken for weeks.
☐ Check debug log file size and run a purge if needed
Go to Logmate’s System Info screen and check the current file size of your PHP log and JS log. If either has grown significantly, run a purge from Logmate’s settings panel to remove entries older than your retention window. A large log file growing rapidly usually means a plugin is generating repeated errors — identify it from the high-occurrence entries and address it at the source.
☐ Review server environment for any changes
Check Logmate’s System Info screen for your current PHP version and compare it against plugin compatibility requirements. Hosting providers sometimes upgrade PHP without prominent notification — a version bump from 8.1 to 8.2 can introduce new deprecated function notices or, in some cases, compatibility breaks in poorly maintained plugins. Catching this at the monthly review is far better than discovering it when a plugin stops working.
Quarterly Additions
Every quarter, add these to your routine: review and remove any unused plugins and themes (inactive plugins with unpatched vulnerabilities are still exploitable); test your site’s custom login URL from a fresh browser to confirm it’s working; check Google Search Console for any new security alerts or manual actions; and run a full database optimisation to keep query performance healthy as tables grow.
Frequently Asked Questions About WordPress Maintenance
How long should monthly WordPress maintenance take?
For a well-configured site with no outstanding issues, 30–45 minutes covers updates, log review, backup verification, and error checking. A site with a high volume of errors or a security incident to investigate will take longer, but the maintenance routine itself is the mechanism for catching those situations early rather than after they’ve escalated.
Do I need to do all of this if I’m on managed WordPress hosting?
Managed hosts handle server-level maintenance, and some handle core WordPress updates automatically. They don’t handle your plugin and theme updates, your login security configuration, or your error log monitoring — those remain site-owner responsibilities. The checklist above still applies; some items may already be covered depending on what your host includes.
What’s the fastest way to check all of this for multiple client sites?
A WordPress management dashboard like MainWP or ManageWP lets you run updates, check backup status, and review basic site health across multiple sites from one interface. For error log monitoring and security log review, you still need to check each site individually through Logmate and BruteFort — that’s the nature of site-specific diagnostic data. The per-site review takes 5–10 minutes once you know what you’re looking for.
WordPress maintenance is an investment in stability. The time spent on monthly checks is a fraction of the time spent recovering from a compromised site or diagnosing an error that’s been silently affecting visitors for weeks. BruteFort handles the login security layer and Logmate handles error visibility — together they make the security and monitoring portions of this checklist fast and actionable.
You might also like: