Cloudflare’s former paid option "Dedicated SSL Certificates" was renamed and expanded in 2021 as "Advanced Certificate Manager (ACM)." This article explains the differences from free Universal SSL and when ACM is needed.
A guide to the workflow that automatically generates Japanese + 8-language translated articles, runs builds, and handles auto-merging — all triggered just by updating a Japanese article in Pages CMS via GitHub Actions and GitHub Copilot.
A follow-up to the previous article covering the final refinements: disabling Cloudflare Web Analytics, deferring GA4 and search UI loading, reaching perfect 100s across all PageSpeed Insights categories on both mobile and desktop, cleaning up Search Console breadcrumbs and indexing, migrating to shared SVG icons, and documenting the optimizations that were tried but not adopted.
A complete record of improving an Astro + UnoCSS + Cloudflare Pages site across four axes — performance, SEO, accessibility, and UX — achieving a PageSpeed Insights mobile score of 99 and perfect 100 on all desktop metrics.
A hands-on guide to systematically monkey testing a static site using VS Code Agent Mode (GitHub Copilot) combined with Playwright browser tools. Covers test design methodology, discovered bugs and their fixes, and improvement recommendations.
A practical guide covering solutions for scripts breaking with Astro View Transitions, introducing Pagefind full-text search, improving TypeScript type safety, centralizing constants, and more to improve UX and code quality.
A comprehensive guide to accessibility improvements implemented on an Astro + UnoCSS site. Covers aria attributes, contrast, focus management, form validation, screen reader support, and everything needed for WCAG AA compliance.
A step-by-step guide to properly implementing JSON-LD structured data, OGP, sitemaps, and RSS on an Astro + Cloudflare Pages site. Covers everything from Google rich result support to RSS feed optimization with practical SEO improvements.
A record of making an Astro 6 + UnoCSS + Cloudflare Pages site support 9 languages. Covers the entire process from UI internationalization to translating 136 blog posts and configuring Pages CMS for multilingual content.
From classifying and verifying 837 journal entries accumulated through cloud accounting data sync, to reconciling social insurance premiums, entering deductions, and filing the return. A complete record of a tax return where GitHub Copilot Agent Mode × Simple Browser handled virtually all the real work.
A practical guide covering the full migration from Zoho Workplace to KAGOYA MAIL, including step-by-step procedures, DNS configuration, SPF/DKIM authentication, and a comprehensive data audit of all Zoho Workplace services.
Optimization techniques used to achieve PageSpeed Insights Mobile 99 on an Astro + UnoCSS + Cloudflare Pages site. Covers CSS delivery strategy, font configuration pitfalls, responsive images, AdSense lazy loading, and cache settings.
A practical guide to static site deployment on Cloudflare Pages and security header/CSP configuration using _headers. Also covers why we switched back from Workers to Pages.
A record of evaluating Keystatic, Sveltia CMS, and Pages CMS, ultimately adopting Pages CMS, and implementing spam protection for the contact form using Cloudflare Turnstile.
A record of migrating a business plan document built with VitePress + UnoCSS to Astro + Starlight, unifying the framework across two projects. Also covers migrating Mermaid diagrams to CDN.
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