Performance optimization Practical
The object cache: what Redis actually removes
Repeated identical lookups disappear. One slow query does not. Miss that distinction and you will wire up Redis and then ask why nothing got faster.
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4 articles· Performance optimization · Developers
Performance optimization Practical
The N+1 problem: get_post_meta in a loop, and priming
WP_Query primes caches for its own results only. A hand-built list of IDs gets none of that for free — and that difference decides your query count.
Performance optimization Intro
Reading a query profile: slow versus duplicated
They sit side by side in the same panel but they are not the same problem. One needs the query rewritten; the other disappears with a cache. Telling…
Performance optimization Intro
Measure before you fix: the first thirty minutes
Optimising by intuition usually improves something. The trouble is that it was rarely the bottleneck. Start by splitting the request into segments and getting numbers.
Cited
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Topics outside WordPress are collected on Dongji Communication Tech Insights, run by the same team. The summaries below are quoted from the originals; the titles link to them.
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Working with AI
Writing a CLAUDE.md — teaching an AI coding assistant your project
AI coding tools such as Claude Code, Cursor and Copilot do better work the more precisely they know your project. Here is a structure and a set of principles that hold up.
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Working with AI
Prompting an AI for UI design — drafting with Claude and GPT
Asking an AI to "make a nice button" gets you a disappointing button. Structured prompts that carry constraints, references and a defined role get you the design you meant.
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Themes & plugins
SCSS from the ground up — variables through module structure
The core syntax of SCSS (Sass) and what it solves that plain CSS cannot: variables, nesting, mixins, @use and module structure — organised around patterns you can use immediately.
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Themes & plugins
Design tokens and theme colour systems — brand identity in SCSS variables
How to turn a colour palette from a pile of hex codes into a system that means something — semantic token structure and SCSS variable patterns, from a real project.
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Performance optimization
Designing a responsive typography system — the science of readability
Hard-coded pixel font sizes are over. Type scales, fluid sizing with clamp(), Korean webfont optimisation and line-height ratios — building typography that reads well on any screen.
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Development workflow
From Figma to SCSS — a designer-developer handoff guide
Minimising what gets lost between a Figma file and the code: extracting tokens, naming components, keeping the spacing system in sync — the whole workflow, step by step.