Skip to content

WordPress monitoring

Your WordPress site updated. Did anything break?

A routine plugin or theme update can break your WordPress front end while the dashboard still says everything is fine. Sitewatch checks your site the way a visitor's browser does and alerts you the moment that happens — so you hear it from us, not from a customer.

  • Catches plugin, theme and page-builder breakage after every auto-update
  • Checks what visitors experience — not just whether the server answered
  • No plugin to install, nothing to slow your site down. Live in two minutes
No plugin: to install1 site: free forever

01What can go wrong

One update. A dozen ways to break.

WordPress is a stack of moving parts — core, a theme, and a dozen plugins, each on its own update schedule, each able to change what your visitors load.

  1. 01A plugin auto-updates overnight and conflicts with your theme's scripts.
  2. 02The homepage still answers normally, so uptime tools stay green.
  3. 03But the navigation menu no longer opens, and the styling only half-loaded.
  4. 04Customers cannot use the site, and nobody on your team is watching the front end.
  5. Your uptime tool still says everything is healthy.

02Why traditional monitoring misses this

Your monitor says the site is healthy. It only checked one thing.

Traditional uptime monitoring stops the moment the server answers. We don't just check that your site is online — we check that people can actually use it.

Traditional uptime monitoring

Ask the server
It answers
Healthy

Two steps. Everything after "it answers" is invisible.

Sitewatch

Opens the page
Theme styling loads
Plugin scripts load
Content is intact
Certificate is valid
Healthy

Only "healthy" once the whole page holds together.

03How Sitewatch catches it

One question, after every update.

Not "did the server respond?" — but the one your customers care about: can a visitor actually use the site?

  • The layout loads
  • Menu scripts load
  • Form scripts load
  • Images and thumbnails appear
  • Fonts load
  • Checkout pages still load
  • Certificate is valid
  • Content matches its baseline

04Typical failures we catch

The WordPress breakage visitors hit first.

Plugin update broke the theme styling

An update renames a file the cached page still points at.

The page renders as raw text and visitors leave

Contact form stopped emailing

A form plugin update breaks the script the form depends on.

Enquiries disappear and nobody notices for weeks

Main menu no longer opens

Two plugins clash and the navigation script errors.

Visitors cannot reach anything but the homepage

White screen of death

A fatal error leaves a blank page — sometimes still answering normally.

The site is gone for visitors while your monitor stays green

Page-builder widget vanished

An Elementor, Divi or Beaver Builder update drops one of its own files.

Sections of the page render empty

WooCommerce checkout stopped working

An update conflicts with the theme and the cart script fails.

Customers cannot complete a purchase

Certificate expired

A lapsed certificate is the most preventable outage there is.

Browsers block the site with a full-page warning

Images and thumbnails missing

An image-optimisation plugin or media move leaves them unreachable.

Product shots and featured images render blank

Permalink change created a redirect loop

A permalink or server-rule change sends visitors in circles.

Visitors see "this page isn't working" and search rankings slip

05Beyond updates

The other ways WordPress sites fail

Real downtime and server errors

Critical

A crashed process, a database connection error, or an overloaded host takes the site fully offline. Sitewatch does the fundamental availability checks too, and confirms them before alerting.

The white screen of death

Critical

A plugin conflict or fatal error leaves a blank page — often while the server still reports success, which fools basic uptime checks. Sitewatch compares the rendered page against its baseline and flags the collapse.

Hacked or defaced pages

Critical

A compromised site usually injects unfamiliar scripts, swaps content, or redirects to spam domains. Sitewatch alerts on unexpected third-party scripts, content that drifts from its baseline, and new redirect destinations.

Security protections silently removed

Moderate

A deploy or plugin change strips the headers that protect your visitors. The site still loads, but its protections are gone. Sitewatch tracks them and alerts the moment one disappears.

06A real example

A plugin update, caught before your customers call.

  1. Update ships

    A plugin auto-updates overnight.

  2. Site breaks

    A script conflict stops the menu opening.

  3. Incident opened

    Sitewatch confirms it is real and opens an incident.

  4. You are alerted

    Email or Slack, naming the file that broke.

  5. Fixed

    Before a customer ever calls.

07Setup in minutes

How to monitor a WordPress site

  1. 01

    Add your WordPress URL

    Paste your site URL — the homepage plus any page you cannot afford to lose, like checkout, login or a key landing page. No plugin, no server access.

  2. 02

    Sitewatch recognises WordPress

    It identifies WordPress, your theme, common plugins and your host or CDN, then tailors its checks and its fix guidance to that setup.

  3. 03

    Choose how often and where

    Every 30 minutes on Free, down to every 5 on Pro. Route alerts to email, Slack, webhook, PagerDuty, Opsgenie or SMS.

  4. 04

    Connect a deploy hook (optional)

    Add a webhook to your update workflow so a check runs the moment you update a plugin, theme or core — catching breakage in minutes rather than at the next interval.

08What happens the moment we find it

Detection is not the outcome. Getting it fixed is.

Every incident arrives already diagnosed, tailored to the WordPress stack we detected on your site.

We confirm it is real first

Every issue is re-checked before anyone is alerted, so a momentary hiccup during an update never wakes you at 3am.

Explained in plain English

"A plugin update left a script conflict, so your navigation menu no longer works." Something you can forward to whoever maintains the site.

Pointed at the likely cause

Because Sitewatch recognises your theme, plugins and host, the fix guidance names the layer that changed rather than describing a generic error.

You can verify the fix

Roll back the plugin, then run a check on demand and watch the incident close — before you tell the client it is sorted.

09The WordPress stack

Six layers. An uptime check only sees the first one.

A WordPress site is not one thing. Pick a layer to see how it fails and what Sitewatch notices when it does.

Host and PHP

Infrastructure

How it fails — The host is overloaded or PHP crashes, and the site returns an error or nothing at all.

How Sitewatch detects it — Availability checks catch hard outages, timeouts and server errors, and confirm them with a retry before alerting.

WordPress core

Application

How it fails — A core update fails halfway, leaving a maintenance page or a fatal error behind.

How Sitewatch detects it — We compare the rendered page against its baseline, so a collapse to a blank or near-blank page raises an incident even when the server answers normally.

The theme

Presentation

How it fails — A theme update changes or drops the stylesheet, and the page renders unstyled.

How Sitewatch detects it — Every stylesheet and font the page references is fetched and verified, so a missing one is caught on the next check.

Plugins

Extensions

How it fails — Two plugins clash after an auto-update and a front-end script errors — menus, sliders, forms stop responding.

How Sitewatch detects it — Every script the page loads is checked. A file that is gone, or replaced with an error page, is named in the alert.

Media and assets

Content

How it fails — An optimisation plugin or a media move leaves images and thumbnails unreachable.

How Sitewatch detects it — Images are verified alongside scripts and styles, so blank heroes and missing product shots surface immediately.

Forms and checkout

Revenue

How it fails — A form or WooCommerce update breaks the flow that actually makes you money, while the homepage looks perfect.

How Sitewatch detects it — Add checkout, cart and contact pages as critical pages and they are checked on their own schedule with their own alerts.

11Everything we detect

The full checklist on every WordPress check

Theme, plugins and assets

  • Missing plugin scripts — forms, sliders, galleries, page builders
  • Missing theme stylesheets and fonts — the page renders unstyled
  • Missing images and thumbnails after a media or optimisation change
  • Files served as the wrong kind of file, so the browser refuses them
  • Stale references left behind by a caching plugin or CDN after an update

The site itself

  • Hard outages, timeouts and server errors
  • The white screen of death — a blank page that still answers normally
  • Redirect loops from a permalink or server-rule change
  • Redirects that hand visitors to a domain you do not control
  • Unexpected content changes against your baseline — a sign of a hack or a bad edit
  • Certificate expiry, with warning well before the date
  • Security headers that disappear after a deploy or plugin change

12vs. your uptime tool

What uptime tools miss on WordPress sites

Plugin script goes missing

Uptime monitor:
Not detected — the page still answers
Sitewatch:
Detected, with the file named

Theme styling fails to load

Uptime monitor:
Not detected
Sitewatch:
Every stylesheet and font verified

Caching plugin serving stale files

Uptime monitor:
Not detected
Sitewatch:
Caught on the next check

Permalink change causes a loop

Uptime monitor:
Follows it silently and reports "up"
Sitewatch:
Loop detected and flagged

White screen of death

Uptime monitor:
Often still reads as healthy
Sitewatch:
Page compared against its baseline

After you click "Update"

Uptime monitor:
Waits for the next interval
Sitewatch:
Checks instantly via a deploy hook

What the alert tells you

Uptime monitor:
"Site is down"
Sitewatch:
What broke, where, and what to do

No plugin

Nothing installed on your site

5 min

Fastest check interval

6

Alert channels

Stop hearing about WordPress breakage from your clients

Add your site and monitor it in under two minutes. Free plan, no credit card, no plugin to install.

13The WordPress update problem

Why WordPress sites break after updates — and uptime tools stay green

WordPress runs roughly 40% of the web, and almost none of those sites are static. Every WordPress site is a moving stack of core, a theme, and a dozen or more plugins — each on its own update schedule, each able to change the content, scripts and styling your visitors actually load. That is what makes WordPress monitoring different from plain uptime monitoring: the server can be perfectly healthy while the page is broken.

The three ways an update silently breaks a WordPress site

  • Files go missing. A plugin update renames or removes a script. Your page — or your caching layer — still points at the old address, which is no longer there. The form, slider or checkout that depended on it quietly stops working, and the server still answers normally.
  • Caching and CDN drift. A caching plugin or CDN layer keeps serving an old file, or serves it as the wrong kind of file, after an update. Browsers refuse it silently. This is one of the most common — and least visible — causes of broken assets.
  • Routing changes. A permalink or server-rule change introduces a redirect loop, or sends visitors to the wrong host. Every request still gets a response, so uptime checks pass while real people see "this page isn't working."

What WordPress monitoring should actually check

Opening the homepage every five minutes tells you the server is alive. It tells you nothing about whether a form plugin update broke your lead form, or a WooCommerce update broke your cart. Effective WordPress monitoring verifies the whole page a visitor receives: every script and stylesheet it references, the redirects it follows, the security headers it carries, and its content against a known-good baseline. When something changes, you want the exact file and the likely cause — not just "down."

How Sitewatch monitors WordPress without a plugin

Sitewatch checks your site the same way a browser does — from the outside — so there is nothing to install inside WordPress and no performance cost to your site. It recognises WordPress, your theme, common plugins and your host or CDN, then tailors its diagnosis to that stack. Pair it with deploy hooks to run a check the moment you push an update. If you manage many sites, see Sitewatch for agencies for multi-site dashboards and white-label client reports. Running a store? WooCommerce monitoring adds cart- and checkout-specific checks.

14Questions

WordPress monitoring questions, answered