Title: Ravnsight Detective – Diagnose Errors &amp; Changes
Author: Kristoffer Pihlfelt
Published: <strong>9. 9. 2026</strong>
Last modified: 14. 10. 2026

---

Prohledat pluginy

![](https://ps.w.org/ravnsight-detective/assets/banner-772x250.png?rev=3741989)

![](https://ps.w.org/ravnsight-detective/assets/icon-256x256.png?rev=3688093)

# Ravnsight Detective – Diagnose Errors & Changes

 Autor: [Kristoffer Pihlfelt](https://profiles.wordpress.org/pihlfelt/)

[Stáhnout](https://downloads.wordpress.org/plugin/ravnsight-detective.1.2.1.zip)

 * [Podrobnosti](https://cs.wordpress.org/plugins/ravnsight-detective/#description)
 * [Hodnocení](https://cs.wordpress.org/plugins/ravnsight-detective/#reviews)
 *  [Instalace](https://cs.wordpress.org/plugins/ravnsight-detective/#installation)
 * [Vývojáři](https://cs.wordpress.org/plugins/ravnsight-detective/#developers)

 [Podpora](https://wordpress.org/support/plugin/ravnsight-detective/)

## Popis

When a WordPress site breaks, the question is never just „what is the error?“ — 
it is „**what changed right before it started?**„. Ravnsight Detective answers both,
locally, on your own site:

 * **Error Detective** — catches PHP warnings, deprecations and fatal errors, groups
   identical errors into one row (a hundred thousand repeats is one line, not a 
   flooded log), and attributes each one to the **plugin, theme or core** that caused
   it.
 * **Change Detective** — records every plugin/theme/core install, update, activation
   and switch, changes to important options, and takes a daily environment snapshot
   so even manual FTP changes and host-side PHP upgrades are noticed.
 * **Timeline** — errors and changes on one axis. The debut of an error right after
   an update stops being a mystery.
 * **Investigation Mode** — name the problem („slow“, „white screen“, „broke after
   an update“) and get the most probable cause, its evidence, a confidence level,
   and a safe test to confirm it.
 * **Spike detection** — a dashboard warning when the last 24 hours carry more errors
   than the rest of the week.

Everything is stored in your own database and pruned automatically. Sensitive data(
e-mail addresses, phone numbers, card-like numbers, query-string values, full server
paths) is redacted **before** it is stored.

#### What Detective checks for

Detective is a suite of local detectors. Each can be turned on or off in settings.
In plain terms, this is exactly what they look for:

 * **Error Detective** — PHP fatal errors, warnings and deprecation notices, database(
   SQL) errors, and failed e-mail sends (`wp_mail`). Identical errors are grouped
   into one row and attributed to the plugin, theme or core responsible.
 * **Change Detective** — every plugin/theme/core install, update, activation, deactivation,
   switch or removal; direct edits to theme files; the WordPress, PHP and database
   versions; changes to important options and constants; and a daily environment
   snapshot so even manual FTP changes and host-side upgrades are caught.
 * **JavaScript Detective** — real front-end JavaScript errors happening in your
   visitors‘ browsers (opt-in), attributed to the responsible script, so a broken
   block editor or checkout script does not stay invisible.
 * **Performance Detective** — slow front-end requests, slow database queries, the
   same query run many times on one page (duplicated queries), and requests that
   use too much memory.
 * **Database Detective** — crashed or corrupt database tables (via CHECK TABLE),
   tables that are very large or grew unusually fast since yesterday, and orphaned
   data (e.g. postmeta whose post was deleted). Detection only — it never modifies
   your database.
 * **Mail Detective** — outgoing e-mails that fail to send, so a broken SMTP setup
   or a mail plugin regression surfaces before customers report missing receipts.
 * **WooCommerce Detective** — checkout and payment-gateway errors, failed orders,
   failed WooCommerce webhooks, outdated WooCommerce template overrides in your 
   theme, and stock inconsistencies. No customer personal data is stored.
 * **Cron Detective** — WP-cron overdue or stalled (scheduled tasks not running),
   Action Scheduler failed actions and past-due backlog, and individual scheduled
   jobs caught throwing errors on a supervised test run.
 * **Health Detective** — PHP errors being shown to visitors in production (leaking
   paths), a broken WP-cron configuration, an object cache drop-in whose backend(
   Redis/Memcached) is unreachable, a PHP version at or near end-of-life, autoloaded
   options that have grown too large, and scheduled posts that missed their publish
   time.
 * **HTTP Detective** — broken internal links (404s reached from your own pages),
   critical pages down (home/shop/cart/checkout/account returning a 5xx, timing 
   out, or rendering blank), redirect loops on those pages, mixed content (an https
   page loading http:// resources), and outbound HTTP calls from your site that 
   are slow, failing or being rejected.
 * **Abuse Detective** — sudden spikes in pending comments (spam floods) and in 
   new user registrations (bot signups). Detection only.

Beyond the detectors:

 * **Investigation Mode** — start from the problem, not the log. Pick „Something
   broke after an update“, „A page is slow“, or „Error or white screen“, and Detective
   proposes the most probable cause with its evidence and an honest confidence level,
   then offers a safe test to confirm it. Export the finding as Markdown or JSON.
 * **Timeline & likely cause** — every error and every change on one axis, with 
   an automatic „likely cause“ that ties an error that just appeared to the change
   that landed just before it. Confidence is shown as LOW/MEDIUM/HIGH — never a 
   made-up percentage, and never the word „caused“ unless an isolation test actually
   reproduced it.
 * **Isolation testing** — safely test the site _without_ a suspect plugin, or with
   the default theme, for your own admin session only and in memory only. Visitors
   always see the site exactly as normal, sessions never touch the database, expire
   after 60 minutes, and can always be ended instantly. Bisect one plugin at a time
   to pin down the culprit.
 * **Spike detection** — a dashboard warning when the last 24 hours carry more errors
   than the rest of the week combined.

#### Ravnsight (Pro): add outside-in monitoring

Detective is complete and free on its own — everything above runs locally, with 
no account and no external requests. There is one thing it cannot do alone: watch
your site from the **outside**. If you want that, connect the site to **Ravnsight**,
the cloud monitoring platform, from **Detective  Settings**. That connection adds:

 * **Uptime, SSL, domain, DNS and API monitoring** from multiple countries — a failure
   is re-checked and confirmed from a second location in another country before 
   you are alerted, so a single blip never wakes you.
 * **Alerts** by e-mail, SMS, Slack, Discord, Microsoft Teams, Telegram and webhook.
 * **The outage lined up with its cause** — the errors and changes Detective records
   appear next to the outage on the platform, so „the site went down“ arrives with„
   and here is the PHP error, or the plugin update, that explains it“.
 * **Synthetic WooCommerce checkout flows** in a real browser — cart  payment  order—
   so you know the checkout itself works, not just that the homepage loads.
 * **Status pages and uptime/SLA reports** you can share with clients.
 * **Safe remote updates** with automatic rollback, plus on-site backup and restore—
   supervised, and opt-in per site.
 * **Longer history** — up to 90 days on-site and 13 months on the platform.
 * **White-label** for agencies: your own brand on the plugin and the reports.

Ravnsight has a free plan too (one site, no card) for standalone outside-in monitoring.
The plugin-to-Ravnsight connection above — your inside-WordPress errors flowing 
into Ravnsight, and the remote actions — is a Pro feature; a free Ravnsight account
does not connect to the plugin. Details and pricing: https://ravnsight.com

#### Privacy

The free plugin makes **no external requests on its own** — no phone-home, no tracking,
no automatic telemetry. The **only** thing it can send is an anonymized _resolution
outcome_, and **only** when you explicitly opt in (see External Services below).
All error and change data always stays in your database.

### External Services

This plugin can connect to one external service, and only on your explicit action:

**Ravnsight resolution learning** (https://ravnsight.com) — when you mark a recorded
issue as resolved and tick „share this outcome“ (or enable outcome sharing in the
settings), the plugin sends a single, anonymized _resolution outcome_ to `https://
ravnsight.com/api/v1/telemetry/resolution`. This helps improve how errors are diagnosed
and attributed for all users.

 * **What is sent:** the error’s _type_ and severity (for example a PHP fatal or
   a deprecation — the category, never the error message text), the diagnosis confidence
   level, which plugin/theme/core was suspected versus the one that actually resolved
   it and its version (for example „woocommerce 3.2.1“), the fix type (deactivated/
   updated / rolled back / a config change / other), and the outcome (resolved /
   wrong track). This is what lets shared outcomes improve diagnosis — the error
   _category_ plus the component and version, not the raw message. It does NOT include
   your site URL, domain, account, IP, any user data, or the raw error messages.
 * **When:** only at the moment you explicitly share a resolved issue. Never automatically,
   never in the background.
 * **Nothing else is transmitted** by the free plugin.

Service terms and privacy policy: https://ravnsight.com/privacy

## Instalace

 1. Install from **Plugins  Add New** in wp-admin (search for „Ravnsight Detective“),
    or upload the `ravnsight-detective` folder to `/wp-content/plugins/`.
 2. Activate **Ravnsight Detective** through the **Plugins** menu.
 3. Open **Detective** in the admin menu. Every detector is on by default; turn any
    of them on or off under **Detective  Settings**.
 4. That’s it — everything runs locally, with no account and no external requests. 
    To add outside-in uptime monitoring and alerts (e-mail, SMS, Slack, Teams, Telegram,
    webhook), connect the site to Ravnsight (Pro) from **Detective  Settings**.

## Nejčastější dotazy

### How do I find which plugin caused a fatal error?

Error Detective catches each PHP fatal error, warning and deprecation and attributes
it to the exact plugin, theme or core file it originates from — so instead of a 
wall of log text you see „this error comes from Plugin X“. Identical errors are 
grouped into a single row.

### My WordPress site broke after a plugin (or core) update — how do I find out why?

Open the Timeline: your errors and every plugin/theme/core update, activation and
option change sit on one axis. When a fatal error first appears right after an update,
the cause stops being a guess. Investigation Mode takes it further — pick „Something
broke after an update“ and Detective proposes the most probable cause with its evidence,
a confidence level, and a safe isolation test to confirm it.

### Does it work with WooCommerce?

Yes. WooCommerce Detective surfaces checkout and payment-gateway errors, failed 
orders, failed WooCommerce webhooks, outdated template overrides in your theme, 
and stock inconsistencies — so a broken checkout does not stay invisible while the
homepage still loads. No customer personal data is stored.

### Can it monitor my site from the outside, or alert me when it goes down?

The free plugin works locally, inside WordPress. Connect it to Ravnsight (Pro) to
add outside-in monitoring: uptime/SSL/domain/DNS/API checks from multiple countries(
a failure is confirmed from a second location in another country before it alerts
you), alerts by e-mail, SMS, Slack, Teams, Telegram or webhook, synthetic checkout
flows in a real browser, and — the point — your outages lined up with the internal
changes and errors that explain them.

### Does this plugin send any data anywhere?

Not unless you ask it to. By default the free version performs no external requests
and everything stays in your database. If — and only if — you tick „share this outcome“
when you mark an issue resolved (or turn on sharing in settings), it sends one anonymized
resolution outcome to ravnsight.com to improve error diagnosis for everyone. See„
External Services“ below for exactly what that contains.

### Will it slow down my site?

The error handler only does work when an error actually occurs, and repeated identical
errors are a single database update. Change recording runs on admin actions, not
on visitor requests.

### How long is history kept?

Up to 7 days locally (configurable), pruned daily. Connect to Ravnsight (Pro) to
keep up to 90 days of history on-site, plus 13 months on the platform with uptime
and incident history.

### Can it fix the errors it finds?

No, by design. Detective observes, groups and attributes — it never changes your
site, never auto-updates anything and never „optimises“ anything.

## Recenze

Pro tento plugin nejsou žádné recenze.

## Autoři

Ravnsight Detective – Diagnose Errors & Changes je otevřený software. Následující
lidé přispěli k vývoji tohoto pluginu.

Spolupracovníci

 *   [ Kristoffer Pihlfelt ](https://profiles.wordpress.org/pihlfelt/)

[Přeložte “Ravnsight Detective – Diagnose Errors & Changes” do svého jazyka.](https://translate.wordpress.org/projects/wp-plugins/ravnsight-detective)

### Zajímá vás vývoj?

[Prohledejte kód](https://plugins.trac.wordpress.org/browser/ravnsight-detective/),
podívejte se do [SVN repozitáře](https://plugins.svn.wordpress.org/ravnsight-detective/),
nebo se přihlaste k[ odběru protokolu vývoje](https://plugins.trac.wordpress.org/log/ravnsight-detective/)
pomocí [RSS](https://plugins.trac.wordpress.org/log/ravnsight-detective/?limit=100&mode=stop_on_copy&format=rss).

## Přehled změn

#### 1.2.1

A calmer, clearer view — and a few fixes.

Cleaner timeline & dashboard:
 * Resolved problems are hidden from the timeline 
by default, so it shows what is CURRENT. A „Show resolved“ toggle brings them back,
and there’s a setting for the default. * The dashboard now splits the last 24 hours
by severity — Critical, Warnings, Notices & info — with a single „needs attention“
number, so a pile of harmless notices no longer looks alarming. * „Hide from timeline“
on any row tucks away a known-benign signal; it reappears on its own if it happens
again. * Plugin/theme updates and other changes are labelled as changes, never „
problems“. * Repeated „Loading chunk failed“ (dynamic import) errors now collapse
into one row per plugin instead of one per chunk.

Better signals:
 * Action Scheduler failures now show WHICH background actions (
hooks) are failing, not just a count. * A failed tracking/analytics beacon (e.g.
pixel.wp.com) is marked as info — harmless to your site — instead of a scary „third-
party API“ warning. * When you resolve a problem you can add a short „what happened/
how you fixed it“ note. It stays on your site.

#### 1.2.0

Every problem now names the plugin behind it — and the noise is gone.

Sharper attribution:
 * Database errors are now traced to the plugin that owns the
table in the failing query, so a cryptic SQL error becomes „this is , its

<

table>“ instead of a guess.
 * JavaScript errors: the flood of browser noise (autoplay/
media messages, ResizeObserver, browser-extension and in-app-browser errors) is 
filtered out, and the real ones now carry the file, line, column and stack — attributed
to the script that failed, even for promise rejections. Cross-origin and extension
errors are clearly marked „safe to ignore“. * Mixed-content warnings list the exact
insecure http:// URLs and name the plugin or theme that loads each one. * Failed
and backlogged background actions (Action Scheduler) now name the hooks behind the
count. * Slow-request reports keep a top list of the slowest pages, so you can see
WHICH pages are slow, not just that some are.

Less noise, clearer dashboard:
 * Broken internal links are only reported for real
page visits now — background scripts, prefetch, analytics and chat widgets hitting
a 404 no longer raise false „broken link“ alarms, and a dead link is no longer blamed
on core. * A new „By type“ overview on the dashboard shows how many of each kind
of problem you have (fatals, database, JavaScript, performance, links, config …),
colour-coded so urgent stands apart from harmless notices. * Config and health issues
now clear themselves automatically as soon as the condition is fixed, instead of
lingering until you mark them resolved; broken-link, config and abuse signals also
auto-resolve once they stop. * A „Re-check now“ button re-runs the polled checks
on demand and clears anything that has gone quiet.

More in the site report:
 * The environment summary now includes database size, 
PHP post max size and max input vars.

#### 1.1.0

Stronger on its own, and friendlier when you need a hand.

New in the free plugin:
 * Prove it on the spot: every error now has a one-click„
Prove it with an isolation test“ shortcut. It disables the suspected plugin for 
your session only (visitors are never affected) so you can reproduce the problem
and get an automatic verdict. * Copy a diagnosis bundle: one button copies everything
Detective has found — each error together with its likely cause — as plain text,
ready to paste into a support request so a technician sees exactly what is happening,
and why.

Better diagnoses:
 * An update is now treated as a possible fix only once the error
actually stops occurring, not the moment it is installed — so „resolved“ means resolved.*
Debug-visibility reporting is now precise and consistent everywhere: Detective flags„
errors shown to visitors“ only when PHP errors genuinely reach your visitors. * 
Multisite: plugins activated for the whole network are now correctly recognised 
in environment, stack detection and error attribution.

Tighter grouping and a lighter touch:
 * Repeated errors group into a single entry
with an accurate count even on high-traffic sites and non-standard installs (such
as Bedrock). * The dashboard counts distinct errors rather than every repeat, and
separates deprecation notices from real errors, so the headline number reflects 
reality. * Fewer database reads on every front-end page load. * File paths in messages
are trimmed on non-standard installs too, so nothing more than needed ever leaves
the site.

#### 1.0.0

 * First public release. Local WordPress diagnostics: Error, Change, JavaScript,
   Performance, Database, Mail, WooCommerce, Cron, Health, HTTP and Abuse detectors;
   the timeline; Investigation Mode (start from the problem, get the likely cause
   with evidence and a confidence level, confirm with a safe test); isolation testing.
   Optional cloud connection (Pro) adds outside-in monitoring from a second country,
   alerts (e-mail, SMS, Slack, Teams, Discord, Telegram, webhook), the Ravnsight
   AI analysis on your dashboard, safe updates with rollback and on-site backup/
   restore.

## Meta

 *  Verze **1.2.1**
 *  Poslední aktualizace **před 1 dnem**
 *  Aktivních instalací **Méně než 10**
 *  Verze WordPressu ** 6.5 nebo novější **
 *  Testováno až do WordPressu **7.1.3**
 *  Verze PHP ** 8.1 nebo novější **
 *  Jazyk
 * [English (US)](https://wordpress.org/plugins/ravnsight-detective/)
 * Štítků
 * [change tracking](https://cs.wordpress.org/plugins/tags/change-tracking/)[debug](https://cs.wordpress.org/plugins/tags/debug/)
   [error monitoring](https://cs.wordpress.org/plugins/tags/error-monitoring/)[troubleshooting](https://cs.wordpress.org/plugins/tags/troubleshooting/)
   [woocommerce](https://cs.wordpress.org/plugins/tags/woocommerce/)
 *  [Podrobnosti](https://cs.wordpress.org/plugins/ravnsight-detective/advanced/)

## Hodnocení

Zatím nebyly zadány žádné recenze.

[Vaše hodnocení](https://wordpress.org/support/plugin/ravnsight-detective/reviews/#new-post)

[Zobrazit všechny recenze](https://wordpress.org/support/plugin/ravnsight-detective/reviews/)

## Spolupracovníci

 *   [ Kristoffer Pihlfelt ](https://profiles.wordpress.org/pihlfelt/)

## Podpora

Potřebujete pomoc?

 [Fórum podpory](https://wordpress.org/support/plugin/ravnsight-detective/)