How to Fix 'This site can't be reached DNS_PROBE_FINISHED_NXDOMAIN' in Chrome Browser

Four things I tried on macOS Chrome to clear the DNS_PROBE_FINISHED_NXDOMAIN error.

Enabled DNSSEC on Cloudflare

Enabling DNSSEC for codenote.net on Cloudflare, plus a DNSSEC reading list and how to verify with dnsviz.net.

Where to Start with Cloudflare for Japan Enterprise — Entry Patterns from JCB, JAL, Mitsubishi Gas Chemical, and the Post-ISMAP Landscape

Cloudflare's Japan enterprise case studies (JAL, JCB, DeNA, Sansan, Money Forward, Mitsubishi Gas Chemical, Konoike, Lion, GMO, ZIPAIR, BASE) point to four practical entry patterns. This post synthesizes them, covers what changed after Cloudflare's ISMAP registration, and surfaces the adoption risks worth pricing in.

Cloudflare Pages Error: Exit with error code: 126 When Specified Node.js Version Is Not Available

Fix Cloudflare Pages `Error: Exit with error code: 126` by pinning .tool-versions to a Node.js version the build image supports.

Cloudflare Pages Redirect from www to Root Domain

Configuring a www-to-apex redirect for a Cloudflare Pages site using Cloudflare DNS and Page Rules.

Separating Cloudflare Accounts and Billing per Customer — Why Gmail Aliases Get Rejected and How to Mint Real Addresses with Google Workspace Aliases or Groups

You want a separate Cloudflare account per customer so billing is separated. Trying to mass-produce accounts with Gmail +alias fails with 'A variation of this email address is already taken.' Creating another account needs a real, distinct email per account. Here is why, and how to mint those addresses with Google Workspace aliases or Groups.

Solving ERR_TOO_MANY_REDIRECTS with Cloudflare + Nginx + WordPress by changing SSL/TLS to Full (strict)

Fixing Cloudflare + Nginx + WordPress `ERR_TOO_MANY_REDIRECTS` by switching SSL/TLS mode to Full (strict).

Speaking Report from "Cloudflare Workers Tech Talks in Fukuoka #1" ~ Decision-Making for Adopting Hono in Acsim, an AI Requirements Definition Platform

I had the opportunity to speak at "Cloudflare Workers Tech Talks in Fukuoka #1" held in Fukuoka, presenting on "Decision-Making for Adopting Hono in Acsim, an AI Requirements Definition Platform." I discussed the type-safe development experience brought by schema-driven development with @hono/zod-openapi and the background behind this technology selection. This article shares the content of that presentation.

Domain Transfer from Onamae.com to Cloudflare Registrar

A walkthrough of transferring a domain from Onamae.com to Cloudflare Registrar to reduce renewal costs.

[Heroku] Action Required: Legacy Routing End of Life

Reacting to Heroku's legacy routing end-of-life notice by planning a CloudFlare CNAME flattening setup for the naked domain.

Deleted My Onamae.com Account

How I deleted my Onamae.com account after migrating domains to Cloudflare Registrar.

How to Manage Nameservers for Domains Acquired from Onamae.com with Cloudflare

How to point an Onamae.com domain at Cloudflare's nameservers, end to end.

Modern Mobile-responsive JavaScript slider library Swiper

How I modified Swiper's sample code to load from CDN so the demos run as a standalone file.

Updated robots.txt Based on Content Signals to Open All Content for AI Training

I want to provide my content as context for AI, and I find it advantageous for AI training purposes. For these reasons, I have made all content on this site, codenote.net, available for search engines, AI input, and AI training. This article introduces the robots.txt updates based on Content Signals policy and the background behind this decision.