VPS | DEV NOTE

Step-by-Step Guide to Setting Up OpenClaw Completely Free on the XServer VPS Free Plan [April 2026 Edition]

This guide explains how to build the autonomous AI agent "OpenClaw" completely free of charge using XServer VPS's free plan (2GB or 4GB of RAM) and OpenRouter's free model. It covers everything from creating SSH keys and installing OpenClaw to managing rate limits on the OpenRouter free model and troubleshooting package issues as of April 24, 2026.

2026.04.24

AI

Cloudflare × WordPress Complete Setup Guide [Updated for 2026]

From how to set up Cloudflare—which dramatically improves the loading speed and security of your WordPress site—to detailed caching configurations using Cache Rules, WAF protection, and solutions for common redirect errors, we’ll provide a thorough, practical guide.

2026.03.31

SERVER

The Fastest WordPress Optimization Setup: KUSANAGI + Cloudflare Achieves an 82% Improvement in TTFB in Real-World Tests

Exploring the fastest WordPress setup using a combination of VPS, KUSANAGI, and Cloudflare. Based on 13 real-world tests conducted over 12 hours, we confirmed an 82.89% improvement in desktop TTFB. We’ll introduce practical speed-optimization techniques—implementable without plugins—across three layers: server, CDN, and frontend.

2026.03.31

SERVER

WordPress Server Comparison: Recommended Shared and VPS Hosting Options by Use Case

This guide compares server options for WordPress, looking not only at the differences between shared hosting and VPS but also at each provider’s official pricing as of March 30, 2026, and benchmark results from our own site. It’s a comprehensive comparison guide that outlines the pros and cons of providers like Lolipop, Shin VPS, and KAGOYA CLOUD VPS, explains when shared hosting is sufficient, and identifies the signs that it’s time to switch to a VPS.

2026.03.30

SERVER

How to Solve Troublesome Email Issues During a VPS Migration Using Cloudflare and SMTP2GO: Separating Incoming Email for Your Custom Domain from Outgoing Email for WordPress

When migrating WordPress to a VPS, you need to decide in advance how to handle your email setup, separate from the website migration. In this article, we’ve organized options such as Cloudflare Email Routing, SMTP2GO, Brevo, Sakura Mailbox, Amazon SES, Google Workspace, and Microsoft 365, and summarized criteria for choosing based on the number of outgoing emails, the number of recipient accounts, and estimated costs.

2026.03.29

SERVER

A Complete Guide to WordPress Server Migration: A Professional’s Manual Migration from a Shared Server to a VPS [Summary Version]

Unlike the plugin-based migration methods typically used by beginners, this guide outlines the complete process for migrating WordPress from a shared server to a VPS, assuming a manual migration performed by professionals with a focus on reproducibility. In addition to SSH connections, wp-db export, rsync, wp-config.php configuration, and—where necessary—wp-db create, wp-db import, hosts file verification, and DNS switching, this guide also covers preparing to install WP-CLI on Lolipop and how to configure Xserver VPS.

2026.03.29

SERVER

What Is a VPS? A Complete Guide to the Differences Between VPS and Shared Hosting

This guide clearly explains what a VPS is and compares it to shared hosting in terms of flexibility, performance, cost, and operational burden. It serves as a comprehensive comparison guide covering when shared hosting is sufficient for WordPress operations, when you should switch to a VPS, the best timing for the switch, and how to interpret the 7-day benchmark results.

2026.03.29

SERVER