Title: Lubber – The Silent Bad Bot Blocker
Author: techpot
Published: <strong>2026.09.15.</strong>
Last modified: 2026.09.28.

---

Bővítmények keresése

![](https://s.w.org/plugins/geopattern-icon/lubber.svg)

# Lubber – The Silent Bad Bot Blocker

 Szerző: [techpot](https://profiles.wordpress.org/techpot/)

[Letöltés](https://downloads.wordpress.org/plugin/lubber.1.1.1.zip)

 * [Részletek](https://hu.wordpress.org/plugins/lubber/#description)
 * [Vélemények](https://hu.wordpress.org/plugins/lubber/#reviews)
 *  [Telepítés](https://hu.wordpress.org/plugins/lubber/#installation)
 * [Fejlesztés](https://hu.wordpress.org/plugins/lubber/#developers)

 [Támogatás](https://wordpress.org/support/plugin/lubber/)

## Leírás

Lubber blocks AI crawlers, content scrapers and bad bots at the server level – including
the ones that ignore your robots.txt – and does it silently, so the bot never learns
it was blocked.

Most WordPress security plugins block bad traffic with a `403 Forbidden` page. That
tells the bot operator „you’ve been caught” – so they change their fingerprint and
come right back, and in the meantime a `403` still costs your server a full page
load.

Lubber takes a different approach, adapted from a real six-figure-request bot-traffic
investigation: matching requests get a normal `200 OK` response with a tiny, harmless-
looking static page instead – no error, no signal for the bot to react to, and no
database query or theme render for your server to pay for. Because the decoy page
never loads Google Analytics, AdSense, or any tracking script, bot hits also stop
polluting your traffic reports and ad impressions.

#### What it does

 * **Maintained bot directory** – a categorized, regularly-updated list of AI training
   crawlers, AI search/answer engines, SEO/marketing scrapers, and generic scrapers/
   scanners, each with a plain-English description of what it actually is. Untick
   anything you want to explicitly allow; new bots added in a future update are 
   protected against automatically.
 * **Named-crawler blocklist** – always blocks the bots above, plus any custom names
   you add yourself, regardless of referrer.
 * **Outdated-browser rule** – optionally blocks requests claiming a Chrome version
   older than a threshold you set, even when the bot fakes a referrer.
 * **No-referrer detection**, in three independently adjustable strengths – from
   a narrow „missing trailing slash” pattern up to a broad „any request with no 
   referrer” rule for sites that know their traffic is overwhelmingly search-driven.
 * **Built-in protection for real crawlers** – Google, Bing, and Apple’s crawlers
   are recognized two independent ways (by name _and_ by their official published
   IP ranges) so a bot can never bypass detection just by copying a real crawler’s
   name.
 * **Exclusions for genuine visitors** – Android traffic, AI-assistant referrals(
   ChatGPT/Perplexity/Claude/Gemini, which often strip the referrer for real human
   clicks), your own IP addresses, logged-in sessions, and WP-CLI are never touched.
 * **An activity log** right in your dashboard – see what got blocked, by which 
   rule, without needing server/SSH access. Includes a 14-day trend chart, a top-
   blocked-User-Agents and top-targeted-URLs report, and one-click CSV export.
 * **A built-in self-test tool** – type in a User-Agent, referrer, and URL to see
   which rule (if any) would catch it, against your currently saved settings, with
   nothing logged and no real request needed.
 * **Everything is a toggle.** No PHP editing required to enable, disable, or tune
   any rule.

#### Performance

The plugin hooks as early as a normal plugin can (`plugins_loaded`, priority 0) 
so a blocked request exits before the main query, before your theme, and before 
most other plugins run. An optional, off-by-default „Early Loading Mode” goes further,
intercepting before WordPress core itself finishes loading, for sites that want 
the absolute lowest possible cost per blocked request.

#### Privacy

This plugin never sends any data anywhere, and by default it never makes any outbound
network request at all. Everything – the block rules, the IP allowlist, the activity
log – stays in your own database, and the bundled Google/Bing/Apple crawler IP ranges
are used as-is out of the box. If you explicitly turn on „Auto-update crawler IP
ranges” in the Advanced tab, the plugin makes up to three outbound requests per 
day – one each to Google, Bing, and Apple’s own published IP range lists – to keep
those ranges current; no data about your site or its visitors is included in any
of those requests. The Advanced tab also shows exactly which ranges are currently
active and whether they’re the bundled defaults or a fetched copy.

### External services

This plugin connects to Google, Bing, and Apple to download their official
 crawler/
bot IP address ranges, used to build a verified allowlist so legitimate search engine
crawlers are never blocked by mistake. This is opt-in and off by default („Auto-
update crawler IP ranges” in the Advanced tab); when enabled, it runs on a daily
schedule.

No user or visitor data is sent to these services – each is a one-way
 download 
of a public IP range file, not a data submission.

 * Google: fetches https://www.gstatic.com/ipranges/goog.json
    Terms: https://policies.
   google.com/terms – Privacy: https://policies.google.com/privacy
 * Bing: fetches https://www.bing.com/toolbox/bingbot.json
    Terms: https://www.microsoft.
   com/en-us/servicesagreement – Privacy: https://privacy.microsoft.com/en-us/privacystatement
 * Apple: fetches https://search.developer.apple.com/applebot.json
    Terms: https://
   www.apple.com/legal/internet-services/terms/site.html – Privacy: https://www.
   apple.com/legal/privacy/en-ww/

## Telepítés

 1. Upload the plugin files to `/wp-content/plugins/lubber`, or install directly from
    the Plugins screen in your dashboard.
 2. Activate the plugin.
 3. Go to **Settings  Lubber** to review the default rules, add your own IP address
    to the allowlist, and turn on any additional rules you want.

## GYIK

### Will this block Google or Bing?

No. Real Google, Bing, and Apple crawlers are checked two independent ways before
any rule can apply – by their User-Agent and by their official, published IP ranges–
so a configuration mistake in one layer can’t expose the other.

### How do I block AI crawlers like GPTBot and ClaudeBot?

Activate Lubber – the „Always block named bots” rule is on by default and its bot
directory already includes AI training crawlers (such as GPTBot, ClaudeBot, CCBot
and Bytespider) and AI search/answer crawlers (such as PerplexityBot and OAI-SearchBot).
Each one can be switched off individually under Settings  Lubber  Rules, and you
can add your own names to the custom list.

### How is this different from blocking AI bots in robots.txt?

robots.txt is a polite request – well-behaved crawlers honor it, but a scraper can
simply ignore it. Lubber matches the request itself on your server, so it works 
on bots that never read robots.txt, and it answers with a harmless-looking page 
instead of an error so the bot gets no signal to change its name and come back.

### Will blocking AI crawlers hurt my Google or Bing rankings?

No. Googlebot, Bingbot and Applebot (Apple’s search crawler) are never blocked –
they’re recognized by both their User-Agent and their official published IP ranges.
Be aware that AI search and answer crawlers (for example ChatGPT-User, OAI-SearchBot
and PerplexityBot) fetch pages so AI assistants can cite them; if you want those
citations, untick them in the bot directory and only block the AI training crawlers.

### Will this block real visitors who don’t send a referrer?

The two rules enabled by default (named-crawler blocklist and missing-trailing-slash
detection) are deliberately narrow and low-risk. The broader „any no-referrer request”
rule is off by default and clearly labeled as aggressive – only enable it once you’ve
confirmed most of your real traffic arrives via search engines or another referrer.

### Does this replace a full security plugin?

No. This plugin does one thing – detect and quietly decoy bot/scraper traffic before
it costs you server resources or pollutes your analytics. It is not a firewall, 
malware scanner, or login-hardening tool.

### Where is blocked traffic logged?

In a dedicated database table, viewable under Settings  Lubber  Activity Log. Nothing
is written to server log files, and old entries are pruned automatically based on
your configured retention period.

## Vélemények

Nincsenek értékelések erről a bővítményről.

## Közreműködők és fejlesztők

“Lubber – The Silent Bad Bot Blocker” egy nyílt forráskódú szoftver. A bővítményhez
a következő személyek járultak hozzá:

Közreműködők

 *   [ techpot ](https://profiles.wordpress.org/techpot/)

[“Lubber – The Silent Bad Bot Blocker” fordítása a saját nyelvünkre.](https://translate.wordpress.org/projects/wp-plugins/lubber)

### Érdekeltek vagyunk a fejlesztésben?

[Browse the code](https://plugins.trac.wordpress.org/browser/lubber/), check out
the [SVN repository](https://plugins.svn.wordpress.org/lubber/), or subscribe to
the [development log](https://plugins.trac.wordpress.org/log/lubber/) by [RSS](https://plugins.trac.wordpress.org/log/lubber/?limit=100&mode=stop_on_copy&format=rss).

## Változási napló

#### 1.1.1

 * Fix: Removed „Google-Extended” and „Applebot-Extended” from the bot directory.
   They are robots.txt control tokens, not User-Agents – Google and Apple crawl 
   with their normal Googlebot/Applebot User-Agents – so a User-Agent match on them
   could never fire, and listing them wrongly implied Lubber stops Google/Apple 
   AI training. Real Googlebot and Applebot remain protected.
 * Improved: Plugin listing now leads with what Lubber does for AI crawlers (GPTBot,
   ClaudeBot and others), with new FAQs on blocking AI crawlers, how this differs
   from robots.txt, and whether it affects search rankings.

#### 1.1.0

 * New: Maintained, categorized bot directory (AI training, AI search/answer, SEO/
   marketing, generic scrapers) with per-bot toggles, merged automatically with 
   your own custom named-crawler list.
 * New: Activity Log 14-day trend chart, top-blocked-User-Agents and top-targeted-
   URLs reports, and one-click CSV export.
 * New: Self-test tool on the Rules tab – check which rule would catch a given User-
   Agent/referrer/URL without a real request.
 * New: „Exclude iPhone” shared exclusion, alongside the existing „Exclude Android”
   one.
 * Changed: Rules tab redesigned for clarity – real toggle switches, one-line rules,
   and the bot directory/worked examples tucked behind expandable details instead
   of one long page.
 * Fix: The default named-crawler list previously included a plain „applebot” entry,
   which (since this module runs before any verified-crawler exemption, by design)
   could match real Apple Search’s own crawler UA too, contradicting this plugin’s
   own claim that Apple’s real crawler is never blocked. Replaced with „applebot-
   extended” (Apple’s separate AI-training crawler) in the new bot directory; any
   site that already has the old entry stored has it removed automatically.

#### 1.0.1

 * Fix: Next/Previous page and column-sort links on the Activity Log tab no longer
   jump to the Rules tab.

#### 1.0.0

 * Initial release.

## Meta

 *  Version **1.1.1**
 *  Last updated **16 óra ezelőtt**
 *  Active installations **Kevesebb, mint 10**
 *  WordPress version ** 6.2 vagy magasabb **
 *  Tested up to **7.1.2**
 *  PHP version ** 7.4 vagy magasabb **
 *  Language
 * [English (US)](https://wordpress.org/plugins/lubber/)
 * Tags
 * [AI Crawlers](https://hu.wordpress.org/plugins/tags/ai-crawlers/)[block bots](https://hu.wordpress.org/plugins/tags/block-bots/)
   [bot protection](https://hu.wordpress.org/plugins/tags/bot-protection/)[scraper](https://hu.wordpress.org/plugins/tags/scraper/)
   [security](https://hu.wordpress.org/plugins/tags/security/)
 *  [Bővített nézet](https://hu.wordpress.org/plugins/lubber/advanced/)

## Vélemények

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/lubber/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/lubber/reviews/)

## Közreműködők

 *   [ techpot ](https://profiles.wordpress.org/techpot/)

## Támogatás

Vélemény? Segítségkérés?

 [Támogatói fórum megtekintése](https://wordpress.org/support/plugin/lubber/)