xSpeed Cache is officially live! Get 50% OFF during Launch Week — Lifetime starts at just $79Lifetime from $79 — 50% OFF, Launch Week! See Plans →

See Plans →
xSpeed Hub Pricing Docs Blog Scan
Appearance
Get Plugin

Speed Up Your WordPress Sites

Get performance tips, tutorials, best practices, and exclusive deals.

Clear every WordPress cache, with the WordPress logo, xSpeed cover
CachingTutorial

Clearing Every WordPress Cache in 2026: Your Database Is Holding One of Them

WordPress keeps a cache in wp_options that no purge button empties, and wp cache flush skips it entirely without a drop-in. Six stores, cleared in the right order.

Sep 26, 2026 10 min read
Pass Lighthouse, fail Google, with the Lighthouse and Google logos, xSpeed cover
Core Web VitalsPerformance

45% of the WordPress Sites Our Scan Calls Clean Are Failing Google in 2026: Lab Scores Against Field Data

353 WordPress hosts carry both a lab verdict and Google field data on 26 September 2026. The two disagree on a third of them, and the clean label holds 67% of the time.

Sep 26, 2026 18 min read
All WebP, still heavy, xSpeed cover
PerformanceCore Web Vitals

Every Image Is WebP and the Page Weight Did Not Move: Format Saved 38%, Pixels Saved 93%

Twelve photographs, measured on 25 September 2026. Converting to WebP saved a median 38.4%. Resizing the same files saved 92.8%. Why dimensions beat format.

Sep 25, 2026 7 min read
Manage client-site caching with Claude, with the Claude and WordPress logos, xSpeed cover
MCPClaude

Managing Caching Across Client Sites With Claude in 2026: Every Flag Said Yes and One Site Served Nothing

Nine WordPress sites read through one agent connection on 25 September 2026. Every cache flag returned true. One site had a 24-hour hit ratio of zero.

Sep 25, 2026 10 min read
WP Fastest Cache vs WP Rocket, with the WP Rocket logo and the WP Fastest Cache name, xSpeed cover
WP Fastest CacheWP Rocket

WP Fastest Cache vs WP Rocket, 2026: Six Things Stop When the Licence Lapses, Three of Them 15 Days Later

WP Rocket's docs list six things a lapsed licence takes back, three of them 15 days later. WP Fastest Cache Premium is $49 once and never expires. The full comparison.

Sep 25, 2026 21 min read
What an AI agent sees on WordPress, with the WordPress and OpenAI logos, xSpeed cover
AIAI Search

What an AI Agent Sees on 1,567 WordPress Sites in 2026: Thin Text Costs More Than robots.txt

We probed 1,567 WordPress sites as an agent on 25 September 2026. robots.txt rules blocked 48 of them. Having nothing readable on the page lost 157.

Sep 25, 2026 18 min read
The preload that never finishes, with the WordPress logo, xSpeed cover
CachingTroubleshooting

A Preload That Never Ends and a Preload That Never Started Look the Same

A preloader that never finishes is either walking a lap longer than the cache lifetime, or it never queued a list at all. Two commands tell the two apart.

Sep 24, 2026 7 min read
How to read a PageSpeed report, with the Lighthouse and Google logos, xSpeed cover
PageSpeedCore Web Vitals

Reading a PageSpeed Report in 2026: 30% of the Score Is a Metric Google Does Not Rank You On

Total Blocking Time is 30% of a PageSpeed score and is not a Core Web Vital. INP is a Core Web Vital and is 0% of the score. Which number to read first.

Sep 24, 2026 10 min read
FlyingPress vs WP Rocket, with the FlyingPress and WP Rocket logos, xSpeed cover
FlyingPressWP Rocket

FlyingPress vs WP Rocket in 2026: One of Them Serves the First Visitor an Unoptimized Page

FlyingPress serves an uncached page raw and unoptimized by its own documentation. WP Rocket defers five named features. Both priced within $1 at one site.

Sep 24, 2026 20 min read
Cache plugins writing the same file, with the WordPress logo, xSpeed cover
CachingTroubleshooting

Ten of Fourteen Cache Plugins Write the Same File: The WordPress Conflict Nobody Documents in 2026

Ten of fourteen free WordPress caching plugins write the same wp-content/advanced-cache.php. We read the shipped source and published what each one does.

Sep 24, 2026 18 min read
Fast first byte, slow page, xSpeed cover
PerformanceCore Web Vitals

The First Byte Is Fast and the Page Still Is Not: LCP Has Four Parts and You Fixed One

TTFB is about 40% of a well-tuned LCP. If the server is fast and the page is not, the wait is in discovery, render-blocking or bytes. Find which one.

Sep 23, 2026 7 min read
Cache WooCommerce without breaking checkout, with the WooCommerce logo, xSpeed cover
WooCommerceCaching

WooCommerce Cache Exclusions Decide What Gets Stored, Not What Gets Served

An exclusion decides what a page cache stores, not what it serves. Set WooCommerce exclusions before the master switch, and see why /cart catches too much.

Sep 23, 2026 10 min read

Showing 49–60 of 91 articles

Make your site load in milliseconds.

One switch. Zero bloat. Always free to start.