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[Important] Urgent Claude Fable 5 and Mythos 5 Decommissioning due to U.S. Export Restrictions

Sat, 13 Jun 2026 13:00:00 +0900

On June 13, 2026 (JST), Anthropic announced the global decommissioning and disabling of its newly released models, Claude Fable 5 and Mythos 5, effective immediately.

This drastic decision comes after the United States government (under the Trump administration) issued a sudden export restriction order on the afternoon of June 12, citing national security concerns. As a result, all active API endpoints for both models have been shut down. This article reviews the geopolitical context surrounding the shutdown and outlines the immediate steps developers must take to restore service.

Goodbye WordPress: Why and How We Migrated to Hugo Static Site Generator

Fri, 12 Jun 2026 12:00:00 +0900

We have officially completed the transition of netguide.jp from WordPress to Hugo, a modern static site generator (SSG).

Operating a dynamic CMS like WordPress had become increasingly bottlenecked by page load delays, security updates, and hosting costs. Migrating to a static workflow resolved all of these issues. In this case study, we share our motivation, migration strategy, and the post-migration performance gains.

1. Three Reasons We Left WordPress

While WordPress remains a highly versatile CMS, its dynamic, database-driven architecture presented critical challenges as our content grew:

Unleashing Creativity: Features and Creative Use Cases of Claude Fable

Tue, 09 Jun 2026 12:00:00 +0900

While AI has revolutionized code generation and structured business writing, capturing the nuance, subtext, and flow of creative literature has remained a challenge. To solve this, Anthropic engineered Claude Fable, a model fine-tuned specifically for creative writing, fiction development, and world-building.

In this article, we explore how Claude Fable helps novelists, screenwriters, and copywriters push the boundaries of creative expression.

1. What makes Claude Fable Different?

Standard large language models (like Claude Sonnet or GPT-4) are trained to be concise, helpful, and literal. When asked to write a story, they often rely on clichés and formulaic prose that feels distinctly “AI-generated.”

Introducing Claude Mythos: The Next-Gen AI Model and How to Use It

Mon, 01 Jun 2026 12:00:00 +0900

Anthropic has officially announced its next-generation flagship AI model: Claude Mythos.

Surpassing the capabilities of Claude 3.5 Sonnet and Claude 3 Opus, Claude Mythos introduces a powerful reasoning architecture that transforms how we write code, analyze data, and solve logical problems. In this article, we dive deep into the key features, benchmarks, and real-world use cases of Claude Mythos.

1. What is Claude Mythos? Key Features and Innovations

Claude Mythos isn’t just about scaling up parameters; it integrates an embedded Reasoning Chain directly into its inference architecture. Before answering, the model maps out logical steps internally, reducing hallucinations and maximizing accuracy.

Modern Web Scraping: Ethics, Legality, and Best Practices in 2026

Wed, 20 May 2026 12:00:00 +0900

Design web scraping systems responsibly without overloading web servers, respecting robot files and API terms.

As AI development fuels a massive demand for raw data, web scraping has become an essential software development skill. However, extracting web layouts without permission introduces serious technical, ethical, and legal concerns. This article covers the legal boundaries of crawling, ethical pipeline design rules, and a Python example featuring retry behaviors and rate-limiting structures.

1. Legal and Ethical Boundaries of Scraping

Auto-extracting data from websites falls into a legal gray area. Consider these vital concepts:

SEO and Core Web Vitals: Demystifying and Improving INP

Tue, 05 May 2026 12:00:00 +0900

INP (Interaction to Next Paint) measures a web page’s responsiveness to user interactions. This article demystifies Google’s Core Web Vitals metric, explores how it differs from the deprecated FID metric, and outlines how to optimize your JavaScript execution pathways to achieve “Good” scores.

1. What is Interaction to Next Paint (INP)?

INP tracks the latency of all user interactions (clicks, taps, and keyboard inputs) during a user’s visit to a page. It measures the duration between when a user initiates an action and when the browser paints the next frame showing the visual update.

Building Blazing Fast APIs with Hono and Cloudflare Workers

Fri, 01 May 2026 12:00:00 +0900

Combine the micro-framework Hono and Cloudflare Workers to deliver lightning-fast responses on the global edge.

In 2026, building edge-native serverless backends has become the modern standard. This guide dives into why “Hono + Cloudflare Workers” is a powerful stack, how to initialize a project, and includes a TypeScript API example.

1. Why Choose Hono and Cloudflare Workers?

Traditional web frameworks (like Express or NestJS) were designed before modern Web Standard APIs emerged. Consequently, they bundle node-specific polyfills and runtime code, making them too heavy for lightweight serverless nodes.

Tailwind CSS v4 Features and Migration Guide

Wed, 01 Apr 2026 12:00:00 +0900

Tailwind CSS v4.0 introduces a brand-new compilation engine written completely in Rust, accelerating build loops by up to 10x. Additionally, it transitions from a JavaScript-based configuration file (tailwind.config.js) to a CSS-first approach, where customizations are defined inside your primary stylesheet using standard CSS variables.

This article reviews the major changes in Tailwind CSS v4 and provides a practical migration walkthrough to help you upgrade your projects.

1. Key Changes in Tailwind CSS v4

1) Rust-Powered “Oxide” Engine

The defining feature of v4 is its compiler. Rewritten in Rust, the Oxide engine processes stylesheet files significantly faster than the old PostCSS-based engine. This translates to near-instantaneous dev server startups and hot module replacement (HMR), keeping developers in their flow.

The Benefits of Adopting PWA (Progressive Web Apps) in 2026

Fri, 20 Mar 2026 12:00:00 +0900

PWAs (Progressive Web Apps) allow web applications to be installed on user devices, offering features like push notifications and offline support.

In 2026, the mobile web ecosystem has matured significantly, with enhanced support for Web Push on both iOS and Android. Choosing PWA architecture is now more compelling than ever for cross-platform app development. This article explores the technical advantages and strategic business benefits of PWAs in 2026.

1. Technical Context of PWAs in 2026

Historically, PWAs faced adoption hurdles due to limited capability support on iOS Safari. Today, the landscape has completely changed:

Understanding CSS Subgrid Layout for Modern Design

Sun, 15 Mar 2026 12:00:00 +0900

CSS Grid revolutionized how web layouts are structured. However, a common challenge remained: aligning nested items (grandchild elements) inside parent Grid Items to the main grid lines.

This was resolved with the introduction of CSS Subgrid, a specification update for CSS Grid Layout. This article explains the fundamentals of CSS Subgrid and how to apply it to common layout problems like card lists.

1. What is CSS Subgrid?

Traditionally, only direct children of a Grid container can be positioned along the defined grid tracks. When you declare another grid inside a Grid Item, that nested grid is completely isolated from the outer parent grid.

Essential Web Accessibility (WCAG) Knowledge in 2026

Sun, 01 Mar 2026 12:00:00 +0900

Legislation enforcing digital accessibility is tightening globally. In 2026, targeting compliance with WCAG 2.2 (Web Content Accessibility Guidelines) at Level “AA” is no longer optional—it has become a standard engineering requirement for web platforms.

To build barrier-free web experiences, developers must understand semantic structures, user inputs, and visual design requirements.

1. Key Guidelines Introduced in WCAG 2.2

WCAG 2.2 focuses on improving accessibility for mobile users, people with cognitive disabilities, and low-vision individuals.

Is Shared Hosting Obsolete? A Beginner's Guide to Edge Computing with Cloudflare Workers

Fri, 20 Feb 2026 18:49:00 +0000

“Building a new web service or API sounds great, but server maintenance costs and effort hold me back…” “I’m always worried my server will crash during traffic spikes.”

Running a website or application means constantly dealing with physical servers. Monthly fixed costs, security updates, handling sudden traffic surges — it adds up to significant stress for developers and operators.

But in 2026, a trend is rapidly gaining traction that fundamentally changes web development: edge computing (serverless) — running programs without traditional hosting — and the leading platform is Cloudflare Workers.

Auto-Post WordPress Articles to Social Media (X, Bluesky) in 2026

Sun, 15 Feb 2026 18:43:00 +0000

“After publishing a blog post, opening X, copying the URL, and writing a promo feels like a chore…” “I’m so exhausted from writing that I keep skipping the social media announcement.”

Spending hours crafting a great article only to have no one read it is truly disheartening.

In modern web publishing, sharing articles on social media is just as important as SEO for driving traffic. But manually posting to multiple platforms drains time and energy.

Stop Reusing Passwords Today: The Beginner's Guide to Password Managers (2026)

Tue, 10 Feb 2026 18:40:00 +0000

The holiday season is over, and a new year of work has begun. Have you ever frozen at a login screen, realizing you have no idea what your password is?

Clicking “Forgot Password,” only to be told “You cannot use a previous password.” Adding random digits, then forgetting again… This password reset hell is a massive waste of time.

But reusing the same password everywhere is the modern equivalent of handing out copies of your house key to strangers.

WordPress Too Slow? 5 Proven Steps to Score 90+ on PageSpeed Insights

Mon, 05 Jan 2026 07:00:00 +0000

“Spent hours writing a great article, but it loads so slowly nobody reads it…” “PageSpeed Insights shows a red score on mobile — embarrassing.”

Site speed is not just about comfort — Google uses page load speed as a ranking factor (SEO). A slow site hurts both user experience and search visibility.

“Speeding up a site sounds like engineering work.” Not necessarily. With the right plugin settings and a few image tricks, anyone can dramatically improve speed.

Beyond ChatGPT: Why Local AI on Your Own PC Is the Breakthrough Trend of 2026

Thu, 01 Jan 2026 18:33:00 +0000

“I understand AI is useful, but I’m uneasy about entering sensitive work data…” “Monthly AI subscription fees are quietly eating into my budget.”

As generative AI becomes part of daily life, many users face these concerns. In 2026, the hottest trend in IT is Local AI (Local LLM) — running AI directly on your own PC without relying on cloud servers.

This guide explains what local AI is, how it differs from cloud-based AI, and why it is suddenly gaining traction.

5 Essential Steps to Secure Your WordPress Site from Hackers

Thu, 04 Dec 2025 07:00:00 +0000

“My blog is too small to be a target.” “Security sounds complicated, so I keep putting it off.”

If that is what you think, you could be in serious danger.

Malicious bots are constantly trying every WordPress site’s “doorknob” worldwide, 24/7. They do not distinguish between personal blogs and major sites. Any site with weak security is a target.

If your site gets hijacked, attackers could inject spam links, steal visitor data, or even delete your entire site. Years of hard work could vanish instantly.

Can't Access Certain Sites? How to Check and Handle Cloudflare Outages (502 Errors)

Fri, 21 Nov 2025 05:29:19 +0000

“Suddenly I can’t access a site I visit every day…” “My blog is showing a ‘502 Bad Gateway’ error!”

If multiple sites are down simultaneously, it could be a Cloudflare outage. Cloudflare handles nearly 20% of global web traffic — it is a massive intersection on the internet. When an incident occurs here, countless sites become unreachable worldwide.

This guide explains how to check if Cloudflare is experiencing an outage and what steps both users and site administrators should take.

Internet Slow Only at Night? You Might Need IPv6 (IPoE) — Explained Simply

Thu, 20 Nov 2025 09:00:00 +0000

“Daytime is fine, but between 8 PM and 11 PM, videos suddenly start buffering…” “Online games lag and I can’t win!”

If you have these problems, even after restarting your router or buying a new one, the cause might be your internet connection type (road congestion).

This guide explains IPv6 IPoE — a congestion-free high-speed standard — in plain language.

Why Is It Slow Only at Night? The Toll Booth Effect

Traditional internet connections (called PPPoE) are like highway toll booths. Everyone must pass through a single authentication point to reach the wider internet. During off-peak hours, traffic flows smoothly. But at night and on weekends, cars (data) flood the toll booth, causing massive congestion. That is why your connection slows down in the evening.

Nov 18, 2025: Massive Cloudflare Outage Took Down X, ChatGPT, Discord — What Happened?

Wed, 19 Nov 2025 06:00:00 +0000

“Last night the internet suddenly stopped working…” “X (Twitter), ChatGPT, even Discord — none of them would load!”

On the night of November 18, 2025, many people experienced exactly this. It wasn’t your phone or Wi-Fi — it was a global-scale Cloudflare outage that disrupted countless services.

Here is the timeline, the surprising cause, and what we can learn from it.

XServer VPS Launches Japan's First Completely Free VPS Plan

Thu, 10 Jul 2025 13:07:43 +0000

Hello!

XServer Inc. has announced the launch of Japan’s first completely free VPS plan for its XServer VPS service. This free plan allows developers and learners to access a full VPS environment without any cost.

Free Plan Overview

Launch date: July 10, 2025
Pricing: Completely free — no initial or monthly fees
Memory options: 2GB or 4GB RAM
Use cases: Web app development, generative AI tool testing, learning and experimentation

Target Users and Applications

Individual developers and learners: Instantly set up a free environment for testing generative AI apps (e.g., Dify).
Business testing: Evaluate performance on the free plan before full-scale deployment.

Comparison with Other Free VPS Options

Truly free VPS plans are rare. Competitors often impose time limits or require credit card registration. XServer’s service offers no-risk, always-available signup.

DeepSeek: The Chinese AI Startup Facing a Storm of Controversy

Wed, 04 Jun 2025 00:00:00 +0000

Hello!

Chinese AI startup DeepSeek has rapidly gained global attention with high-performance models rivaling OpenAI and Google. However, its meteoric rise is accompanied by mounting controversies over data misuse, security concerns, and more. Here is a breakdown of the key allegations.

1. Unauthorized Use of Google AI Data?

DeepSeek’s latest model, “DeepSeek-R1-0528,” released in May 2025, shows strong performance in math, programming, and reasoning. However, AI researchers suspect some training data was taken without authorization from Google’s Gemini model. DeepSeek has not disclosed detailed training data sources, raising transparency concerns.

IOWN Explained: NTT's Next-Generation Optical Network and Its Future Potential

Sat, 08 Feb 2025 21:00:00 +0000

Hello!

As communication technology rapidly evolves, our lives and businesses are transforming into an increasingly advanced digital society. Among these developments, NTT’s IOWN (Innovative Optical and Wireless Network) has garnered significant attention as a next-generation communication network. This article explores IOWN’s basic concepts, features, future prospects, and current challenges.

1. What Is IOWN?

IOWN is NTT’s concept for a revolutionary communication infrastructure. It goes beyond traditional optical fiber and wireless communication by integrating optical and wireless technologies to achieve faster speeds, lower latency, and greater energy efficiency. The goal is to dramatically improve data transmission speeds and enable real-time processing of massive data volumes, supporting IoT, 5G/6G, AI, autonomous driving, and more.

Examining the DeepSeek Controversies: Allegations, Industry Impact, and Future Outlook

Tue, 04 Feb 2025 07:00:00 +0000

Hello! DeepSeek, which we covered recently, has been rapidly gaining attention in the AI industry for its innovative low-cost, high-efficiency AI models. However, various allegations have also emerged, sparking debate both inside and outside the industry. This article delves into the controversies behind DeepSeek’s success, the specific allegations, industry reactions, and future prospects.

1. DeepSeek’s Growth and Background

DeepSeek, a Chinese AI company, has achieved remarkable results in generative AI. By maintaining performance comparable to large-scale AI models while achieving development at surprisingly low costs, the company has impressed competitors. Its open-source strategy, sharing technology with researchers and developers worldwide, has also been praised for democratizing AI.

DeepSeek: The Chinese AI Startup Reshaping the Industry with Low-Cost Innovation

Mon, 03 Feb 2025 21:00:00 +0000

Hello!

Today, we take a deep dive into DeepSeek, the Chinese AI startup that is rapidly reshaping the industry. With low-cost, highly efficient AI models, DeepSeek has the potential to break beyond the boundaries of traditional AI. This article covers the company’s key technologies, available models, and future outlook.

1. What Is DeepSeek?

DeepSeek is a Chinese AI company gaining attention in generative AI. It focuses on reducing development costs and energy consumption while maintaining performance comparable to large-scale AI models. By making advanced AI more accessible to businesses and researchers, DeepSeek is driving the democratization of AI.

VPN Basics: How to Choose and Use the Best VPN Service for Security and Privacy

Tue, 14 Jan 2025 21:00:06 +0000

Hello! Today, we are taking a detailed look at VPNs — a technology you may have heard about but might not fully understand. VPNs are useful for protecting personal information and bypassing geographic restrictions. This guide explains the basics, benefits, and recommended services.

1. What Is a VPN?

How VPN Works

VPN (Virtual Private Network) creates a secure, encrypted “tunnel” over the internet. This tunnel protects your data from being intercepted by third parties. For example, using a VPN on public Wi-Fi prevents hackers from stealing your personal information.

Coreserver Review: High-Performance Hosting at a Reasonable Price

Sat, 04 Jan 2025 21:00:00 +0000

Hello! Today, we are taking a detailed look at Coreserver, a popular shared hosting service. If you are struggling to choose the right hosting for your website, blog, or online store, this is worth reading.

This article covers Coreserver’s features, benefits, and how to get started.

1. What Is Coreserver?

Coreserver is a high-performance shared hosting service provided by GMO Internet Group. It offers flexibility for a wide range of needs — from individuals to businesses — with excellent cost-performance. It is especially recommended for beginners and those running medium to large-scale sites.

Internet Basics: Understanding How the Internet Works

Thu, 24 Oct 2024 08:00:00 +0000

Hello!

Welcome to this beginner-friendly guide on how the internet works! Even if you are not familiar with technology, this article will explain basic internet terms in a simple, easy-to-understand way.

The Basic Structure of the Internet

The internet is a vast network of computers connected worldwide, exchanging information. More specifically, it is made up of many smaller networks (like home or office networks) connected together. When these networks communicate, they use communication rules called protocols. Thanks to these protocols, we can access websites, stream videos, and send emails.

Speed Up Your Internet by Updating Your Devices and Software

Thu, 19 Sep 2024 04:00:00 +0000

Hello!

Today, we focus on how updates can improve your internet speed. Outdated hardware and software are common causes of slow connections. This guide covers updating routers, devices, and software with specific steps.

Why Updates Matter

Outdated hardware and software suffer from reduced performance and increased security risks. Regular updates include bug fixes, performance optimizations, and security enhancements.

Speed Up Your Internet by Changing Your DNS Settings

Mon, 16 Sep 2024 04:00:00 +0000

Hello!

Today, we will look at how adjusting your DNS settings can improve your internet speed. DNS (Domain Name System) plays a crucial role when you access websites. This article explains the basics of DNS, how to choose faster DNS servers, and the specific setup steps.

What Is DNS?

DNS (Domain Name System) is like an address book for the internet. It converts human-readable website names (e.g., www.example.com) into IP addresses (e.g., 192.0.2.1) that computers use to connect to the correct server.

Square Tap to Pay Arrives in Japan: Contactless Payments on Your Smartphone

Thu, 30 May 2024 14:00:00 +0000

Hello!

Today, we are talking about Square’s services and the convenience of smartphone tap-to-pay. If you are starting a business or considering cashless payments, this is essential reading. We also have details on Square’s limited-time discount campaign.

This page contains affiliate links.

Limited-Time Campaign

From May 15 to June 28, Square is running a discount campaign on tap-to-pay terminals! Purchase during this period to get significant savings.

What is the newly announced ChatGPT-4o? Thorough explanation of how to use it

Thu, 16 May 2024 14:00:00 +0000

Hello!

Today we will discuss how to use ChatGPT-4o, a tool that utilizes the latest AI technology, ChatGPT-4o is a powerful language model developed by OpenAI and an excellent tool for a wide variety of applications. In this article, we will explain in detail the basic and applied uses of ChatGPT-4o in order to use it effectively.

What is ChatGPT-4o?

ChatGPT-4o is a language model developed based on the GPT-4 architecture for a variety of natural language processing tasks, including text generation, translation, summarization, and question answering. The model has been trained on a vast amount of data and is capable of generating natural, human-like text.

Essential WordPress Plugins for a Smoother Site

Sat, 10 Feb 2024 20:00:00 +0000

Hello! To run a WordPress site efficiently and provide a great reader experience, the right plugins are essential. Here are our top recommendations.

W3 Total Cache: Performance Booster

Key Features

W3 Total Cache is a comprehensive caching plugin for WordPress performance.

Page Cache: Caches pages as HTML for faster re-loading
Browser Cache: Lets returning visitors load static files from local cache
Database Cache: Caches query results for faster page generation

Why Use It?

Speed: Dramatically improves load times
SEO: Google favors faster sites in search rankings

https://wordpress.org/plugins/w3-total-cache/

Step-by-Step Guide: How to Install WordPress on Your Server

Sat, 10 Feb 2024 20:00:00 +0000

Hello! Today, we are going through the complete process of installing WordPress — the world’s most popular CMS (Content Management System).

What Is WordPress?

WordPress is a free, open-source CMS that powers everything from personal blogs to corporate websites, thanks to its ease of use and extensibility.

Installation Methods

There are two ways to use WordPress: wordpress.com (hosted) and wordpress.org (self-hosted). This guide covers the self-hosted method.