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Your List Still Has Duplicates After Removing Duplicates
The Case Against Lorem Ipsum — and When to Use It Anyway
Lorem Ipsum is neutral enough to let design be evaluated as design — but it also hides real content problems until production. Here's the legitimate case against Lorem Ipsum, when representative real text produces better design decisions, and when Lorem Ipsum genuinely is the right tool.
How Diff Works: Git, Three-Way Merge, and the Myers Algorithm Behind It
Git diff, pull request reviews, and three-way merges all run on the Myers diff algorithm. Here's how diff finds the shortest edit between two texts, how to read git diff output, why merge conflicts happen, and how diff applies beyond version control.
Designing OG Images That Drive Social Media Clicks
The OG image is the most underinvested part of social media marketing. Here's what makes social preview images drive clicks: dimensions, contrast, readable text at thumbnail size, template-based generation at scale, and platform-specific caching considerations.
Sleep Debt: Why You Can't Catch Up on Weekends — And What the Science Says
Weekend lie-ins restore how rested you feel — but not the metabolic and cognitive damage from a week of short sleep. Here's how sleep debt accumulates, what it does to your body, and why consistency beats catch-up.
URL Encoding Edge Cases That Break Real Applications
The difference between encoding a full URL and a URL component, why + and %20 aren't always interchangeable, how double-encoding silently corrupts data, and the characters that break most URL handling code.
Code Naming Conventions: Why camelCase, snake_case, and kebab-case Each Exist
Case conventions exist for reasons, not tradition. Here's why Python uses snake_case, JavaScript uses camelCase, CSS uses kebab-case, and how to handle naming across language boundaries when data crosses APIs and databases.
RD Calculator — Use Recurring Deposits to Build Specific Savings Goals
Learn why RD interest is lower than FD at the same rate, how to match an RD to a specific savings goal, tactics for better returns through staggered maturities, and how to use a free RD calculator.
Compound Interest Calculator — Why Starting Early Beats Starting Big
Discover how compound interest creates exponential wealth, why starting early beats starting big, how fees destroy compounding over time, and how to model any investment scenario with a free compound interest calculator.
Canonical Tags vs. 301 Redirects: A Decision Framework for Duplicate Content
Canonical tags and 301 redirects both solve duplicate content problems — but through different mechanisms with different trade-offs. Here's the decision framework for when to use each, common canonical mistakes, and the belt-and-braces approach for domain canonicalisation.
SPF PermError: Why the 10-Lookup Limit Breaks Email Authentication and How to Fix It
Adding third-party email services pushes SPF past the 10-lookup limit, causing PermError and DMARC failures. Here's how to count SPF lookups, why the limit is hit so easily, and the three solutions: IP replacement, flattening, and consolidation.
How to Read a Traceroute: What the Output Actually Tells You
A single high-latency traceroute hop usually isn't a problem. Asterisks don't mean the hop is down. Here's how to read traceroute output, identify where latency is actually introduced, and distinguish ICMP rate limiting from real network issues.
Why Google Rewrites Title Tags — and How to Write Ones It Actually Uses
Google rewrites title tags in 30–60% of cases depending on the site. Here's what triggers rewrites, what Google substitutes instead, and how to write titles that get left alone — with guidance on length, keyword use, and the brand name question.
