Object Cache in WordPress: Redis vs Memcached vs Nothing
What WordPress object cache actually does, when you need a persistent cache, Redis vs Memcached architectural differences, and how to verify it is working. No fabricated benchmarks.
Marcin Dudek
WordPress REST API Performance: Disable What You Don’t Need
WordPress registers 40+ REST API endpoint controllers on every /wp-json/ request. Most sites use a fraction of them. Here’s how to audit, trim, and lock down your REST API – with real hooks and code you can deploy today.
How to Find Which Plugin Is Slowing Down Your WordPress Site
Your WordPress site is slow and you suspect a plugin. Here’s how to actually find the culprit – from the manual disable-and-test method to hook profiling tools that show you exactly which callback is eating your page load time.
WordPress Cron Jobs: The Silent Performance Killer Nobody Talks About
WP-Cron checks for scheduled tasks on every page load and makes an HTTP request to itself. Here’s why that causes random slowdowns and how to fix it in 5 minutes.
MariaDB 10.11 vs 11.4 for WordPress: Should you update? YES! [Benchmark]
I benchmarked MariaDB 10.11 vs 11.4 on identical WordPress + WooCommerce environments. The results: 40x faster subquery updates, 8x faster date queries, and 28-32% faster meta queries. Here are the real numbers.
Best WooCommerce Configurator Plugins 2026 (Performance Tested)
I installed 16 WooCommerce configurator plugins on a clean site and measured the real page weight impact. Some add zero overhead. One adds 860KB of JavaScript to every product page.
WordPress Memory Limit: How to Find What’s Eating Your PHP Memory
Every guide tells you to increase WP_MEMORY_LIMIT. None of them tell you how to find what’s actually eating your memory. Here’s a diagnostic workflow that gives you real answers.
Emergency WordPress Recovery: What to Do When Your Site Goes Down
Your site is down. Visitors see an error page. Revenue is dropping by the minute. Panic sets in. Here is your emergency action plan — a calm, systematic approach to getting your WordPress site back online as fast as possible. Step 1: Confirm the Outage (30 seconds) Before doing anything, verify the site is actually … Read more
Optimizing WordPress for Core Web Vitals in 2026
Core Web Vitals are Google’s metrics for measuring real-world user experience. They directly impact your search rankings. In 2026, the three metrics that matter are Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS). Largest Contentful Paint (LCP): Under 2.5 Seconds LCP measures how long it takes for the largest … Read more
Do Shortcodes Slow Down WordPress? What the Data Shows
WordPress shortcodes have been around since version 2.5. They’re everywhere — page builders use them, contact form plugins use them, even some themes rely on them for basic layout. But do they actually slow down your site? The short answer: shortcodes themselves are nearly free. What’s expensive is the code they execute. Let me show … Read more