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WooCommerce caching plugins, with the WooCommerce, WP Rocket, LiteSpeed and FlyingPress logos, xSpeed cover
WooCommerceCaching

WooCommerce Caching in 2026: Three Plugins Stop a Shopper From Writing Your Public Cache

WooCommerce protects three pages by ID, not by URL. Twelve caching plugins read from source: three stop a shopper with a full basket writing your cache.

Sep 23, 2026 22 min read
Redis vs Memcached, with the Redis logo and the Memcached name, xSpeed cover
Object CacheRedis

Redis Refused 4,600 of 6,000 Writes at Its Memory Cap: Choosing a WordPress Object Cache in 2026

Two cache servers, four failure modes, measured on 23 September 2026. Redis refused about 4,600 of 6,000 writes at its cap. Memcached refused none.

Sep 23, 2026 17 min read
The hit rate dropped overnight, xSpeed cover
CachingTroubleshooting

The Hit Rate Dropped Overnight and the Cache Never Changed

A hit rate is hits over counted requests, and an update can change what either word means. The shape of the drop tells you whether the cache moved at all.

Sep 22, 2026 7 min read
Meet xSpeed Cache, with the WordPress logo, xSpeed cover
xSpeed CacheAI

Meet xSpeed Cache: A Smarter Way to Make WordPress Faster with AI-Native Features

xSpeed Cache is an AI-native WordPress speed plugin with smart caching, CSS optimization, real-user monitoring, CDN tools, and AI-powered recommendations.

Sep 22, 2026 21 min read
Cloudflare doesn't cache HTML by default, with the Cloudflare and WordPress logos, xSpeed cover
CloudflareCDN

Cloudflare Caches 56 File Types, and HTML Is Not One of Them

Cloudflare caches 56 file extensions by default and none of them is HTML. What that means for connecting a WordPress page cache, and the order you purge in.

Sep 22, 2026 10 min read
WP Rocket pricing, every tier, with the WP Rocket logo, xSpeed cover
WP RocketPricing

WP Rocket Pricing in 2026: There Is Nothing Between 3 Sites and 50

WP Rocket's Plus licence covers three sites. The next rung covers fifty. Seven paid plugins priced at 1, 5 and 25 sites, with the setup nobody invoices.

Sep 22, 2026 21 min read
When not to use a caching plugin, with the WordPress logo, xSpeed cover
CachingPerformance

48% of WordPress Sites Have Under 100ms of Cache Headroom: When Not to Use a Caching Plugin in 2026

886 WordPress sites from our own scan archive. Nearly half have under 100ms of server time left for a page cache to take, and both ends of the archive land on the same LCP.

Sep 22, 2026 16 min read
Layout breaks after minification, with the WordPress logo, xSpeed cover
CachingTroubleshooting

The Theme Looks Unstyled and Minify Is the Only Thing You Changed

Minification rarely corrupts a file. It changes which files exist and when they apply. Four bisect passes find the exact switch that broke your layout.

Sep 21, 2026 7 min read
Visitors seeing someone else's name, with the WordPress logo, xSpeed cover
CachingTroubleshooting

A Logged-Out Visitor Is Seeing Someone Else's Name

A cached page is serving one person's session to everyone. Two commands tell you which layer holds it, and seven documented routes explain how it got there.

Sep 10, 2026 7 min read
Migrating from WP Rocket, with the WP Rocket and xSpeed Cache logos, xSpeed cover
WP RocketMigration

Migrating from WP Rocket: Delete It First and There Is Nothing Left to Import

WP Rocket keeps every setting in one wp_options row, and deleting the plugin destroys it. What an importer reads, and which two Advanced Rules boxes never travel.

Sep 10, 2026 10 min read
Perfmatters vs a caching plugin, with the Perfmatters and xSpeed Cache logos, xSpeed cover
PerfmattersComparison

Perfmatters vs a Caching Plugin in 2026: Only One Feature Does Not Overlap

Perfmatters costs $29.95 a year and caches nothing. Its own docs tell you to turn your cache plugin's optimization off. What is left is one feature.

Sep 10, 2026 23 min read
Caching didn't fix your slow site, with the WordPress logo, xSpeed cover
PerformanceCaching

Take the Server Out Entirely and 93% of Slow WordPress Sites Are Still Slow: Why Caching Did Not Fix Yours

1,074 scan reports, 413 WordPress sites. Subtract each site's entire server response from its LCP and 93.4% of the failures still fail. The cache ceiling, measured.

Sep 10, 2026 16 min read

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