Guides from the NOC

WP Super Cache, W3 Total Cache, or WP Rocket showing old content or a broken layout? Learn why cache layers stack up and how to purge and fix each one.

Still failing 'leverage browser caching' in PageSpeed or GTmetrix? Set Cache-Control and Expires headers correctly on cPanel and VPS hosting - step by step.

Cloudflare is retiring Page Rules for Redirect, Cache, Configuration & Origin Rules. Step-by-step guide to migrate your redirects and caching without downtime.

Skip the extra Varnish daemon. Set up Nginx's built-in FastCGI cache to speed up PHP-FPM sites on your VPS, with safe rules for logged-in users and carts.

Planning a WooCommerce flash sale? Use this hosting checklist to prep caching, database connections, PHP-FPM, CDN, and webhooks before the traffic hits.

Google Analytics or GTM showing zero visitors on your WordPress site? Find and fix the caching, consent, plugin, and container issues causing it.

Cloudflare Turnstile widget missing or failing verification in WordPress? Fix domain, key, caching, and firewall issues causing it to break.

Advanced Custom Fields values not saving or vanishing in WordPress? Learn the real causes — local JSON sync, capabilities, caching — and fix each one.

WooCommerce showing wrong stock counts? Learn why inventory drifts out of sync from caching, lookup tables, and imports, and the exact fix for each.

Coupon codes failing at WooCommerce checkout? Learn the real causes - usage limits, restrictions, caching bugs - and fix invalid coupon errors for good.

WooCommerce checkout showing zero or wrong GST tax? Learn why rates go missing - caching, tax classes, geolocation - and fix each cause step by step.

WordPress search returning zero results or a blank page? Learn the real causes - custom post types, caching, WAF rules, broken indexes - and fix it for good.

WordPress RSS feed showing XML parsing errors or blank output? Learn the real causes - whitespace, debug notices, caching - and fix your feed for good.

WooCommerce checkout stuck on "no shipping options available"? Learn the real causes - zones, disabled methods, caching - and how to fix each one.

WooCommerce abandoned cart emails not sending or carts not tracked? Learn how caching, WP-Cron, and SMTP issues break recovery, and how to fix each one.

Lock a folder with cPanel Directory Privacy the right way. Fix login loops, caching conflicts, and .htpasswd path errors that break Basic Auth.

Install Memcached on your VPS, wire it into PHP sessions, and fix Connection Refused and Class Memcached Not Found errors while keeping port 11211 secure.

Install and configure Varnish Cache on your VPS to serve pages in milliseconds. Step-by-step setup for Apache or Nginx backends, plus fixes for common issues.

Confused by your domain's SOA record? Learn what serial, refresh, retry, and expire actually control, and how to fix slow zone sync or DNS caching issues.

Getting "Are you sure you want to do this?" in WordPress? Learn why nonce tokens expire, how caching causes it, and the exact steps to fix it for good.

Edited a PHP file but the site still shows the old version? Learn how PHP OPcache caches compiled code, why it goes stale, and how to clear it safely.

WordPress sitemap.xml showing a 404 in Search Console? Learn why it happens - permalinks, plugin conflicts, caching, robots.txt - and how to fix each one.

WooCommerce checkout stuck, blank, or failing at payment? Learn the real causes - SSL, caching, blocked APIs, gateway keys - and fix each one step by step.

WordPress slow for logged-in users despite page caching? Set up Redis object cache on your VPS the right way, and fix the common connection issues.