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How to check domain age, expiry and DMARC for thousands of domains with free official APIs
WHOIS is on its way out. For generic domains like .com, .net and .org, ICANN now requires registries…
Should you add an AI chatbot to your website?
Adding an artificial intelligence assistant to a business website sounds like a modern upgrade. With…
Watermarking 200 photos in the browser, with nothing uploaded
I work on sellphotos.online, where this was originally published. A watermark tool that uploads you…
How to Build a Returns Auction Marketplace: Architecture, Fraud Controls, and Scaling Costs
NRF expects $1.013 trillion in 2026 holiday sales, while its latest research says fraud continues sh…
Notes on generating QR codes for print: error correction, logo holes and quiet zones
I work on sellphotos.online, where this was originally published. Every event on sellphotos.online …
Building ERPSav: Lease Overcharges Are a Rules Problem — What Worked, What Broke
Rent statements rarely overcharge in one dramatic line. The extra cost arrives in small, plausible p…
How to Measure UI Padding & Pixel Distances on Any Windows Screen with a Smart Edge-Detecting Ruler
When building or reviewing a frontend UI, desktop app, or Figma implementation on Windows, you const…
How we built selfie search for event photos on Cloudflare (and kept the originals out of it)
I work on sellphotos.online, where this was originally published. Our sample gallery has 1,240 phot…
Website Speed vs Design: What Makes Visitors Stay — A Developer's Guide
If you build websites for clients, you have had this conversation. The client wants a homepage that …
PCB or Wire Harness? Deciding Where Each Belongs in a Connected Product
When a product needs power and signals across several subsystems, teams face a recurring design fork…
Brake System Specs for the Aftermarket: Rotors, Pads and Calipers That Actually Match
A brake complaint from a distributor is rarely "the part is wrong" in an obvious way — it is usually…
My First Project: One Website for Hotels, Movies and Flights
Before Spring Boot, before any internship, there was the holiday planner. It was my first ever proje…