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Cursive Text Field Guide: When Hand-Written Script Beats a Stretched Italic
Every fancy-text tool generates cursive by mapping letters to the Mathematical Script block, then silently…
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Text Pad & Align Field Guide: When Four Alignment Modes Beat Custom Padding Logic
Most teams reach for a regex or a stack of String#padStart calls the moment a…
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HTTP Headers Analyzer Field Guide: When Five Signals Hide Above The 200 OK
A field guide to the five classes of HTTP response headers you actually want to verify on every release — cache directives, security headers, redirect chains, server fingerprints, and content negotiation.
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URL Safety Checker Field Guide: When Punycode, IDN Homographs, and Embedded Credentials Hide Behind a ‘Safe-Looking’ Domain
Most phishing URLs don’t look obviously malicious — they look like every other short link…
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CSV / Excel Diff Tool Field Guide: When Row-Level Differences Deserve a PDF Report You Can Email
The CSV-Excel diff problem is not "did the file change"; it is "which rows, which…
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Environment Config Diff Visualizer Field Guide: When Dev, Staging, and Prod YAML Drift Apart by Lunch
Production breaks the day after staging says green. The deploy pipeline copies the YAML and…
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ISO 8601 Duration Builder Field Guide: When PnYnMnDTnHnMnS Rules The Time Interval Grammar
A field guide to the ISO 8601 PnYnMnDTnHnMnS duration grammar, with the four edge cases that ruin most naive parsers and the four programming stacks that implement months four different ways.
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Accessibility Checker Field Guide: When WCAG 2.1 Compliance Should Not Be a Friday Night Audit
WCAG 2.1 does not fail loudly. A button can render, an image can display, and…
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Data URI Generator Field Guide: When Inlining Beats A Request And When A File Wins
A field guide to the break-even line for Data URIs inlining in production frontends. Covers the three rules that decide when inlining wins, the five pitfalls that quietly break the deal, and the audit pass that catches them before CSS ships.
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Unicode Escape Converter Field Guide: When Four Escape Styles Beat One Universal Form
Eighteen hex and Unicode escape pairs sit in your clipboard, and a single NFD-vs-NFC mismatch…