WordPress Engineering Blog

Mechanics-first guides to WordPress reliability, performance, and infrastructure from the Nova team. Explore our managed WordPress hosting platform or compare plans and pricing.

performance

Where Are WordPress Pages Stored?

Learn where are WordPress pages stored — from the wp_posts database table to cached files — so you can back up and troubleshoot your site.

performance

WordPress Multisite Different Domains: Complete Setup & Management Guide

Learn how wordpress multisite different domains works — from domain mapping and DNS setup to SEO, SSL, and Network Admin management in one clear guide.

performance

Best Generative AI Infrastructure Software for a Tech Startup: Build, Rent, or Buy

Learn how to choose the best generative AI infrastructure software for your startup with a layer-by-layer build-rent-buy framework grounded in real productio...

performance

What Are PHP Workers? A Plain-English Guide for WordPress Site Owners

Learn what php workers are, why they run out during traffic spikes, and how caching and CDN setup can improve your WordPress site's performance.

performance

Private AI Infrastructure Without a Data Center

Learn how to run private ai infrastructure on a single GPU workstation without a data center, including a real build, security controls, and when to scale up.

performance

How to Use Git With WordPress: Workflows, Deployment, and Best Practices

Learn how git with wordpress works, from setting up your .gitignore to deploying with hooks, CI/CD pipelines, and managing your database across environments.

performance

The Complete Guide to WordPress Comment Plugins

Learn which wordpress comment plugins fit your site's spam, performance, and privacy needs before you install anything.

performance

How to Deploy an LLM: Pipeline, Options and Cost

Learn how LLM deployment works across four paths, from hosted APIs to self-hosted containers on Kubernetes, with cost and observability guidance.

performance

LLM Infrastructure for a Small Team: What You Actually Need

Learn what LLM infrastructure requires — from choosing hosted APIs vs. self-hosted models to the five things every production stack needs.

performance

How a WordPress Site Duplicator Saves You Time, Headaches, and Data

Learn how a WordPress site duplicator works, which method fits your setup, and how to fix the most common migration errors before they affect your site.

performance

AI Agent Infrastructure: The Stack Explained

Learn what ai agent infrastructure really consists of — from model access and MCP tools to permissions, tracing, and build-versus-rent decisions for small te...

performance

Can Claude, ChatGPT or Gemini Build a Website? What Each Can Do and Where the Site Lives

Learn what Claude, ChatGPT, and Gemini can actually do for website building — and what hosting, domains, and setup still require a human or coding agent.

performance

MySQLTuner for WordPress: How to Use It and What to Do With the Results

Learn how to run mysqltuner on your WordPress server, read its output, and apply database configuration changes safely with this practical guide from Nova Blog.

performance

How to Build and Run a WordPress Site from Claude Code

Learn how to use claude code wordpress workflows to edit files, run WP-CLI, and operate a live site through Nova's MCP server from your terminal.

performance

What Is ElasticPress? Features, Setup, and Troubleshooting for WordPress Sites

Learn how elasticpress connects WordPress to Elasticsearch, what features it adds, how to set it up, and how to fix the most common problems.

performance

What Is WP Ultimo and How Does It Power WordPress Multisite Networks?

Learn how WP Ultimo works — from setting up WordPress Multisite plans and domain mapping to fixing common errors and choosing the right hosting.

performance

Object Cache Pro: What It Is, How It Works, and Whether You Need It

Learn what object cache pro does, how it connects to WP Redis, and whether your WordPress site actually needs it.

performance

How to Use Search Replace DB for Safe WordPress Database Migrations

Learn how search and replace db works, why plain SQL queries break WordPress databases, and how to run a safe migration in seven steps.

performance

Best LMS for WordPress: Top Plugins Compared for Course Creators

Read our plugin-by-plugin breakdown to find the best LMS for WordPress based on SCORM support, pricing, and hosting requirements.

errors

Why Your WordPress Site Keeps Throwing a Memory Limit Error — And How to Actually Fix It

Learn what causes a memory limit error in WordPress, how to increase your PHP memory limit, and what to change so the error doesn't return.

migration

How Migrate Guru Works: WordPress Migration Made Simple

Learn how migrate guru moves your WordPress site server-to-server, what causes migrations to fail, and what to check before going live.

performance

PHP Memory Limit in WordPress: What It Is, Why It Breaks, and How to Fix It

Learn what the php memory limit is, why WordPress memory errors happen, and how to fix them using the right configuration method for your host.

migration

How WPvivid Handles Backup, Migration, and Staging for WordPress Sites

Learn how WPvivid handles WordPress backup scheduling, site migration, and staging so you can protect and manage your site with one plugin.

errors

How to Fix 404 Errors on Your WordPress Site

Learn how to fix 404 error problems on your WordPress site — from flushing permalink settings to setting up 301 redirects and preventing future broken pages.

performance

303 Redirect: What It Is, How It Works, and When to Use It

Learn what a 303 redirect does, how it differs from 301 and 302 codes, and how to find and fix unexpected 303s in your WordPress site.

errors

What Is HTTP Error 451? Causes, SEO Impact, and What WordPress Site Owners Should Do

Learn what error http 451 means, what triggers it on WordPress sites, and how it affects your SEO — so you can respond before it becomes a bigger problem.

performance

What Is The Fastest Hosting For WordPress

Learn what is the fastest hosting for WordPress by comparing server stacks, including OpenLiteSpeed, Kubernetes isolation, GCS backups, and WAF protection.

maintenance

How to Find the Best WordPress Support Services

Learn what separates the best WordPress support services from ticket-mill help desks, with a checklist for evaluating SLAs, engineers, and coverage.

errors

Fix Facebook Sharing the Wrong Image with the Debugger

Fix WordPress pages that show the wrong, stale, or missing image on Facebook using the Sharing Debugger, correct og:image tags, and cache busting.

maintenance

How to Choose a WordPress Maintenance Service

Learn what reliable WordPress maintenance includes, how to evaluate providers, and which service model best fits your site, risk, and budget.

performance

Cloud WordPress Hosting: Architecture Overview

Compare shared, VPS, elastic cloud, and Kubernetes WordPress hosting by isolation, scaling, failure recovery, operational effort, and site fit.

errors

How to Fix Cloudflare Error 1014

Resolve CNAME Cross-User Banned errors by identifying cross-account proxy targets and choosing a supported DNS, origin, or custom-hostname setup.

errors

How to Fix Cloudflare Error 524 in WordPress

Fix Cloudflare error 524 by finding slow WordPress requests, exhausted PHP-FPM workers, stacked proxy timeouts, and synchronous background work.

maintenance

Cloudflare Firewall Rules for WordPress Security

Build scoped Cloudflare rules for WordPress login, XML-RPC, REST API, country, and ASN traffic while preserving legitimate editors and integrations.

errors

How to Fix a 502 Bad Gateway in WordPress

Diagnose WordPress 502 failures between a reverse proxy and PHP-FPM, including crashes, exhausted workers, wrong ports, and unhealthy backends.

errors

How to Fix ERR_CONNECTION_CLOSED in WordPress

Diagnose ERR_CONNECTION_CLOSED on WordPress by checking browsers, TLS, firewalls, keepalive settings, proxy buffers, and origin server logs.

errors

How to Fix "Error Establishing a Redis Connection" in WordPress

Diagnose and fix the WordPress "error establishing a Redis connection" message by checking the six causes that occur in real deployments.

errors

How to Fix HTTP Error 431 in WordPress

Fix HTTP error 431 in WordPress by tracing oversized cookies, redirect loops, proxy headers, and server limits without masking the underlying cause.

errors

Fix “Sorry, You Are Not Allowed to Access This Page”

Restore WordPress admin access by diagnosing lost capabilities, damaged user meta, prefix mismatches, and plugins that deny the requested screen.

maintenance

How to Hide WordPress Users from the REST API

Stop public WordPress user enumeration through the REST API and author archives without breaking the block editor, plugins, or authenticated clients.

comparison

HighLevel vs Dedicated WordPress Hosting

Compare HighLevel WordPress hosting with dedicated managed hosting by product focus, resource isolation, caching, maintenance, and operational fit.

errors

How to Fix 401 Unauthorized in WordPress

Trace WordPress 401 responses across Basic Auth, the REST API, security rules, and CDN layers, then correct the failing authentication path.

errors

What the nginx 499 Status Code Means

Learn why nginx logs 499 requests, trace client disconnects to slow WordPress or PHP-FPM work, and fix the timeout mismatch at the underlying source.

migration

How to Migrate From WP Engine Safely

Migrate from WP Engine with an independent backup, configuration cleanup, pre-cutover testing, DNS planning, and careful post-launch verification.

maintenance

WordPress Maintenance Cost: A Practical Breakdown

Compare common WordPress maintenance costs across hosting, updates, security, backups, monitoring, support, and managed plans without hidden scope.

maintenance

WordPress Maintenance Mode: How It Works

Understand the WordPress maintenance file, activate or clear it with WP-CLI, recover interrupted updates, and choose when a plugin is appropriate.