Deep dives into tools,
techniques & the web.
Practical guides covering developer tools, health metrics, SEO, converters and more — written to be actually useful.
✦ AI-powered — understands natural language
Word Boundaries and Lookarounds: Precise Find & Replace
Data URLs and Base64: When to Embed Resources Inline vs Link to Them
Data URLs embed files directly in HTML and CSS as Base64 strings — no separate HTTP request. Here's when that's faster, when it makes things worse, how JWT tokens use Base64URL, and how inline images in emails work around image blocking.
Cooking Converter — Convert Any Recipe's Measurements Across Countries
Learn why cooking measurements cause confusion across countries, what differs between US and Australian tablespoons and UK vs US pints, why weight beats volume for baking, and how to convert any recipe with a free cooking converter.
US vs UK Volume Measurements: Why Cups and Pints Differ — and Why Bakers Should Weigh Instead
A US cup is 240ml; an Australian cup is 250ml. A UK pint is 568ml; a US pint is 473ml. Here's why these differences matter in baking, why professional bakers weigh rather than measure, and the exact weight conversions for common baking ingredients.
Beyond UUID: How Twitter's Snowflake IDs, ULID, CUID2, and Nano ID Work
Twitter, Discord, and Instagram all built custom ID systems because UUID couldn't handle time-sortability, distributed generation, and 64-bit constraints simultaneously. Here's how Snowflake IDs work, what ULID and CUID2 offer, and when each alternative makes sense.
Volume Converter — ml, Litres, US & UK Pints, Gallons & Cups Explained
Learn the US vs UK volume measurement differences, why a UK pint is 20% larger than a US pint, how to convert cups and gallons for cooking and fuel, and how to use a free volume converter for any scenario.
Why Your Speed Test Looks Fine but Everything Still Feels Slow
High speed test numbers don't guarantee fast internet. Latency, bufferbloat, WiFi overhead, and ISP congestion all affect real-world performance in ways throughput tests don't capture. Here's how to read speed test results and diagnose actual slowness.
Subnetting Explained: CIDR Notation, Host Counts, and Practical Network Design
CIDR notation and subnetting make more sense once you see the pattern: each /1 increase halves the subnet. Here's how prefix lengths translate to host counts, common use cases from cloud VPCs to point-to-point links, and IPv6 subnetting philosophy.
Data Storage Converter — Why Your 1TB Drive Shows 931GB & How to Convert
Learn why your 1TB drive shows 931GB, the difference between decimal and binary storage units, how network speeds relate to file transfer speeds, and how to convert any data size with a free storage converter.
Cloud Storage Real Costs: Why Egress Fees Matter More Than Per-GB Pricing
Cloud storage pricing looks simple until you see the egress fees. Here's how AWS S3, Backblaze B2, Cloudflare R2, and Azure Blob compare on real total cost — including the storage tier minimums and per-request charges that cause bill shock.
Colour Contrast and Accessibility: WCAG Ratios, Common Failures, and Accessible Design Systems
WCAG contrast requirements are now enforceable law in the EU and UK. Here's how contrast ratios are calculated from RGB values, which common colour combinations fail (including Bootstrap blue), and how to build accessible colour systems from the start.
How to Read Your Electricity Bill: kWh, Appliance Running Costs, and Energy Prices by Country
Your electricity bill is written in kWh — here's how to decode it, calculate what every appliance costs to run, what electricity costs in different countries, and how much standby power is silently costing you each year.
EV Efficiency vs Petrol: What kWh/100km Actually Means for Your Running Costs
EVs measure efficiency in kWh/100km or miles per kWh — and once you convert those numbers to petrol equivalents, the running cost comparison becomes clear. Here's the full calculation with home charging vs. public charging, and why winter dramatically affects real-world range.
