Description
Your visitors decide to stay or leave in under 3 seconds. xSpeed makes sure they stay.
Most caching plugins bury you in settings, charts, and upgrade popups. xSpeed does the opposite — install it, flip one switch, and your site loads faster. No bloat, no upsells nagging you, no PhD required.
Built by the team at WPDeveloper — trusted by over 7 million WordPress users worldwide.
What Does xSpeed Do?
xSpeed is a full-site performance plugin. It caches your pages, shrinks your code, compresses your files, and serves everything as fast as your server physically can — including an AI-powered audit that tells you exactly what’s slowing your site down.
The result: pages that load in milliseconds, not seconds. Better Google PageSpeed scores. Happier visitors. Better SEO rankings.
The Speed Advantage No Other Free Plugin Offers
When xSpeed caches a page, it doesn’t just save it — it serves it directly from the server, bypassing PHP entirely.
That means:
- With xSpeed static cache: 5–15ms response time
- Without it (PHP-served cache): ~85ms response time
That’s up to 17× faster page delivery on cache hits. No other free caching plugin does this across Apache, nginx, and LiteSpeed automatically.
Features at a Glance
Page Caching
Your pages are saved as static HTML files and served instantly to visitors — before WordPress even loads. The cache rebuilds itself automatically whenever you publish a post, switch themes, or update a plugin. You never have to think about it.
- Static-file rewrite path (bypasses PHP entirely — 5–15ms TTFB)
- Auto-purge on publish, update, comment, theme change
- One-click cache purge from the admin bar
- Exclude specific URLs (e.g.
/cart,/checkout,/my-account) - Set your own cache expiry (1–720 hours)
- Separate mobile cache for phone and tablet visitors
- Per-post cache rules — custom expiry or disable caching for individual posts
Code Minification
Strips all the unnecessary whitespace, comments, and characters from your HTML, CSS, and JavaScript without breaking anything.
- Minify HTML, CSS, and JavaScript
- Combine CSS and JS files to reduce HTTP requests
- Defer or delay JavaScript so it doesn’t block page rendering
- Async CSS loading
- Removes
?ver=query strings from asset URLs - Safe-minify: automatically skips already-minified files and falls back if anything looks off
GZIP Compression
Makes every file your server sends smaller — so browsers download them faster.
- Auto-configures GZIP on Apache and LiteSpeed
- Shows a ready-to-paste config snippet for nginx and IIS
- Detects if your server already has GZIP active — no double-configuration
Lazy Load
Images, videos, and iframes load only when a visitor scrolls to them — not all at once on page load.
- Lazy load images, iframes, and videos
- Automatic CLS (Cumulative Layout Shift) fix so your layout doesn’t jump
Fonts Optimization
Web fonts are one of the most common causes of slow-loading pages.
- Adds
font-display: swapso text is visible immediately while fonts load - Preloads above-the-fold font files for instant rendering
- Removes the blank-text flash caused by slow Google Fonts responses
Browser Cache
Tells browsers to remember your static files (images, CSS, JS) so returning visitors load your site even faster.
- Sets proper
Cache-ControlandExpiresheaders - Works automatically — no manual configuration needed
Cache Preloader
Warms up your cache automatically so the very first visitor after a purge still gets a fast page.
- Sitemap-driven cache warmer
- Auto-warms cache when you publish or update content
Object Cache (Redis / Memcached)
Speed up database-heavy WordPress installs with server-side object caching.
- Connect Redis or Memcached in seconds
- View status and flush cache from the dashboard
CDN Support
Serve your static files from a CDN for faster global delivery.
- Pull-zone URL rewriting for any CDN provider
- Built-in Cloudflare integration: connect your zone, auto-purge on publish, toggle dev mode
Database Optimization
A bloated database slows down every page load. xSpeed keeps yours clean.
- Optimize database tables
- Remove post revisions, spam, trash, transients, and orphaned meta
- Schedule automatic cleanup so it runs on autopilot
Disable Bloat
Turn off WordPress features you don’t use — each one is a request your server doesn’t have to make.
- Disable dashicons on the frontend
- Remove oEmbed, RSS feeds, XML-RPC, jQuery Migrate, REST API authentication headers
AI-Powered Site Audit (Pro)
xSpeed Pro scans your specific site and tells you exactly which performance features will help the most — with severity ratings and concrete reasons, not generic advice.
Smart Enough to Stay Out of Trouble
xSpeed handles the edge cases other plugins miss:
- Multisite ready — each site in the network gets its own cache and settings.
- LiteSpeed server? — xSpeed detects LiteSpeed Cache’s server module and steps back to avoid conflicts.
- WooCommerce? — logged-in customers and checkout pages are never cached.
- WordPress Site Health — xSpeed adds its own health check under Tools Site Health so you always know your cache config is working correctly.
- Works on any server — Apache, nginx, LiteSpeed, IIS, and any standard PHP host.
Designed for Everyone
Non-technical users: A 3-step setup wizard walks you through first-time configuration in under 2 minutes. Settings auto-save — there’s no Save button to forget.
Developers: REST API at /wp-json/xspeed/v1/, developer filters (xspeed_skip_minify, xspeed_cache_skip_for_post, xspeed_cache_expiry_for_post), WP_DEBUG awareness, and a React 18 + TypeScript admin UI under 80 KB gzipped.
Agencies: Use the xspeed_branding filter to white-label the dashboard for clients.
Completely Private
xSpeed never collects personal data, stores IP addresses, uses tracking cookies, or contacts any third-party server. Every optimization runs locally on your server. The only external request it makes is a quick check to your own site’s home URL to confirm GZIP is active — and even that is rate-limited to once per hour. (See “External services” below.)
Backed By a Team You Trust
xSpeed is developed by the trusted team at WPDeveloper, a leading WordPress marketplace used and loved by millions of users.
Loved xSpeed?
If xSpeed makes your site faster, please leave a review on WordPress.org — it really helps!
External services
xSpeed contacts exactly one external endpoint, and only your own site:
Self-hosted gzip probe
- What it does: Issues a single
GETrequest to your site’s home URL (home_url('/')) with anAccept-Encoding: gzipheader to detect whether your web server is already serving gzipped responses. The response body is discarded; only theContent-Encodingheader is read. - When it runs: On demand when the admin dashboard loads server status, throttled to once per hour via a transient (
xspeed_gzip_active). - Where the request goes: Your own site (
home_url()). xSpeed does not contact any third-party server, analytics endpoint, license server, or telemetry collector. - What is sent: No personal data, no site identifiers, no payload — just a standard HTTP
GETfrom your server back to your server.
Third-party libraries
This plugin bundles the following GPL-compatible third-party libraries:
matthiasmullie/minify
Used for CSS and JavaScript minification.
- Source: https://github.com/matthiasmullie/minify
- License: MIT
matthiasmullie/path-converter
Dependency of matthiasmullie/minify.
- Source: https://github.com/matthiasmullie/path-converter
- License: MIT
React / React DOM / Scheduler
Used for the xSpeed admin interface bundle.
- Source: https://github.com/facebook/react
- License: MIT
lucide-react
Used for admin interface icons.
- Source: https://github.com/lucide-icons/lucide
- License: ISC
Screenshots
Installation
- Go to Plugins Add New in your WordPress admin and search for xSpeed.
- Click Install Now, then Activate.
- Navigate to xSpeed in your sidebar.
- The setup wizard will guide you through the rest — it takes about 2 minutes.
That’s it. Your site is now faster.
FAQ
-
Will this break my site?
-
Very unlikely. xSpeed includes safety checks for every optimization: minification falls back to the original if anything looks off, and the cache bypasses logged-in users, admin pages, AJAX, and REST requests automatically. If something ever looks wrong, you can toggle any feature off individually.
-
Does it work with WooCommerce?
-
Yes. Add
/cart,/checkout, and/my-accountto the Excluded URLs list and xSpeed will skip caching those pages. Logged-in customers are never served cached pages regardless. -
Does it work with my server?
-
xSpeed works on Apache, nginx, LiteSpeed, IIS, and any standard PHP host. Static-cache rewriting and GZIP auto-configuration work out of the box on Apache and LiteSpeed. For nginx and IIS, xSpeed shows you a ready-to-paste config snippet.
-
Does it support WordPress Multisite?
-
Yes. Each site in the network has its own independent cache and settings.
-
Will it conflict with LiteSpeed Cache?
-
No. xSpeed detects LiteSpeed’s server-level caching module and steps back automatically to avoid double-caching. Otherwise, only run one page-cache plugin at a time.
-
How do I exclude a page from being cached?
-
Go to xSpeed Settings, paste the URL path (e.g.
/cart) into the Excluded URLs field — one path per line. Changes save automatically. -
How do I clear the cache?
-
Click Purge in the xSpeed dashboard, or use Purge xSpeed Cache in your admin bar. The cache also clears itself automatically whenever you publish or update content.
-
Can I use xSpeed alongside Cloudflare?
-
Yes. The built-in Cloudflare module connects your zone and auto-purges Cloudflare’s cache whenever xSpeed purges its own — so both caches stay in sync.
-
Can I disable minification temporarily for debugging?
-
Yes. Either toggle the option off in the admin UI, enable
WP_DEBUG(xSpeed automatically skips HTML minification when debug is on), or use thexspeed_skip_minifyfilter.
Reviews
There are no reviews for this plugin.
Contributors & Developers
“xSpeed – AI Cache & Performance Optimizer” is open source software. The following people have contributed to this plugin.
Contributors
Translate “xSpeed – AI Cache & Performance Optimizer” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
[1.0.3] – 2026-06-09
Topology-aware UX, nginx HIT counting, admin polish.
Cache topology & UX:
– New: Topology-aware rewrite banner — the dashboard now detects containerized hosts (xclude, Kinsta, RunCloud Atomic, etc.) where the $document_root assumption doesn’t hold, and tells the user exactly what to expect on their stack instead of silently failing.
– New: Unified nginx server-block snippet — one consolidated, copy-pasteable snippet (collapsible in the UI) replaces the previous fragmented sections.
– New: Nginx-served HITs are now counted — a dedicated access_log captures cache hits served directly by nginx (no PHP), so the dashboard “HITs in last 24h” stat is accurate on nginx setups.
– New: X-XSpeed-Cache response header — cache hits are now visible in the response headers, with a distinct value per serve layer (HIT (nginx) for the fast static path, HIT (php) for the drop-in fallback) so you can confirm a page was cached and tell exactly which layer served it.
– Improved: Browser Cache notice is topology-aware and renders its snippet in a proper code block.
Admin UX:
– New: Third-party admin notices are suppressed on xSpeed admin screens (page=xspeed* only) — other plugins’ “rate us” / promo notices no longer crowd the xSpeed dashboard.
– New: Aligned sticky title-bar across the sidebar and content panels for a cleaner scroll experience.
– Improved: Browser Cache + GZIP notices probe-gate themselves — once the underlying issue is resolved, the notice dismisses on its own instead of lingering.
Benchmark:
– Fixed: “Without cache” leg of the dashboard speed test now appends a cache-buster query string. Previously it was hitting the cache and reporting an artificially-fast baseline, making the speedup number look small.
[1.0.2] – 2026-06-02
Static-rewrite cache, Site Health & Fonts.
Static-rewrite cache + Site Health:
– New: Static-file rewrite path — cached HTML is served directly by Apache / nginx / LiteSpeed, bypassing PHP entirely on cache hits (5-15ms TTFB vs ~85ms via the PHP drop-in).
– New: .htaccess static-cache block — installed automatically on cache enable, removed cleanly on disable. Block precedes WordPress’s own rules so static files match first.
– New: nginx config snippet — copy-pasteable server { } block surfaced in the dashboard when nginx is detected (PHP can’t write nginx config). Avoids the “if is evil” pitfall via a named-location fallback.
– New: LiteSpeed LSCache coexistence — xSpeed detects LSCache’s server-level module and steps back instead of double-caching.
– New: Active rewrite probe — Health module pings the cache directory and confirms the rewrite is actually serving static bytes (not just present in .htaccess).
– New: WordPress Site Health integration — Tools Site Health now lists an xSpeed check covering static-rewrite status + nginx config requirements.
– New: Persistent banner — Cache panel warns the admin when caching is on but the static-rewrite block isn’t engaged (slow fallback path).
– New: Copy-to-clipboard button on every config-snippet panel (nginx, GZIP, object-cache).
Fonts:
– New: Fonts module — adds font-display: swap to enqueued web fonts so visible text doesn’t wait on a slow Google Fonts response, and exposes a preload list for above-the-fold font files.
– New: FontsModule tests covering the swap rewrite + preload <link> emission.
Improvements & fixes:
– Improved: Server-type detection is cached so CLI / cron contexts see the same server type as web requests.
– Improved: Drop-in (advanced-cache.php) and WP_CACHE constant are preserved across plugin upgrades; auto-heal hook tightened to admin_init to avoid REST/cron noise.
– Improved: Plugin Check pass — i18n textdomains, WP_Filesystem coverage, SQL preparation, sanitization, and plugin/readme headers all cleaned up for WordPress.org review.
– Fixed: nginx snippet rewritten to avoid the try_files trap that broke pretty permalinks.
– Fixed: Rewrite condition normalized for trailing-slash + non-trailing-slash URLs.
– Fixed: WP-Rocket-style canonical pattern — server-level conditional rewrite.
– Fixed: Minify tag-rewrite filters bail in non-frontend contexts (REST / admin / cron).
– Fixed: wp.org release zip now ships vendor/ — resolves the 1.0.1 activation fatal.
– Improved: Release pipeline rebuilt — .distignore-driven dist build, CI verify step, version-named artifact on every run.
– Improved: Plugin version read from the PHP header — single source of truth.
[1.0.1] – 2026-06-01
Foundation release — full feature set + Pro hooks.
Module architecture + LiteSpeed parity floor:
– New: Module architecture — every feature now ships as a self-contained Module (Cache, Health, Preloader, Heartbeat, Minify, GZIP, Lazy Load, Disable Bloat, Database, CDN, Cloudflare, Object Cache, Browser Cache).
– New: Health module — 24-hour hit/miss counter + activity log.
– New: Preloader module — sitemap-driven cache warmer with content-publish auto-warm.
– New: Cache exclusion intelligence — glob URL patterns, cookie patterns, User-Agent bypass, ignored query parameters.
– New: Per-device cache (mobile-separate).
– New: Per-post cache rules — don’t-cache + custom expiry meta box.
– New: Minification — CSS / JS / HTML minify, combine, defer JS, delay JS, async CSS, remove ?ver= query strings.
– New: Lazy Load module — images / iframes / videos + auto CLS-fix.
– New: Disable Bloat module — 6 ergonomic toggles (dashicons, oEmbed, RSS, XML-RPC, jQuery Migrate, REST auth).
– New: Database module — optimize tables, scheduled cleanup, autoload analysis.
– New: CDN module — pull-zone URL rewriting.
– New: Cloudflare module — zone connect, auto-purge, dev-mode toggle.
– New: Object Cache module — Redis / Memcached config + status + flush.
– New: Browser Cache module — Cache-Control + Expires headers.
– New: Settings search across the entire dashboard with keyword highlighting.
– New: 3-step setup wizard on first activation with preset chooser and benchmark.
– New: Sidebar grouping under domain headers (Cache / Performance / Network / Insights / Tools).
– New: Sidebar tooltips + search shortcut in the collapsed rail.
– New: xspeed_branding filter — agencies can rebrand the dashboard.
– New: xspeed_cache_skip_for_post + xspeed_cache_expiry_for_post filters.
Pro-essentials (everything xSpeed Pro depends on, bundled here so any Pro release works against this single Free version):
– New: xspeed_module_descriptor filter — Pro hooks this to swap its panels to LicenseLockedPanel when license is invalid.
– New: AI Privacy module — GDPR off-switch + xspeed_ai_can_collect_data filter that Pro AI features must consult before recording visitor data.
– New: Pro upsell teasers — in-context inline cards on Cache, Minify, Lazy Load, Browser Cache and Disable Bloat panels.
– New: Locked Pro module rows in the sidebar — shows what Pro offers with a clear upgrade prompt.
– New: Pro Audit on the Cache panel — site-specific scan listing the top Pro features that would help THIS site, with severity chips and concrete reasons (not generic marketing copy).
– New: Sidebar slot for the license module (appears when xSpeed Pro is installed).
– New: Global 36px form-control height baseline across the dashboard.
– New: filemtime() cache busting on admin asset URLs.
Improvements & fixes:
– Improved: React panel registry — modules auto-render in the dashboard.
– Improved: Portal-based save indicator — zero layout shift.
– Improved: Distribution zip prunes dev dependencies (composer install –no-dev).
– Fixed: 5 duplicate module icons + regression test.
[1.0.0] – 2026-05-27
- Initial release.