Blog
Practical notes on shipping, tracking, and buying/selling safely.
July 10, 2026 · 3 min read
Why We Auto-Delete Tracking Links After 21 Days
A short explanation of the design decision behind akkiu's 21-day expiry — and why that's actually a feature, not a limitation.
June 25, 2026 · 3 min read
What Do Different Carriers' Tracking Numbers Actually Look Like?
A quick reference for the typical shape of tracking numbers across DHL, UPS, FedEx, USPS, and more — useful for spotting typos or mismatched carriers.
June 16, 2026 · 5 min read
How to Avoid Fake Tracking Numbers When Buying Secondhand
A short, practical checklist for spotting fake or reused tracking numbers before you pay — especially on marketplaces without buyer protection.
June 2, 2026 · 4 min read
How to Send a Buyer a Tracking Link Without Building an App
If you sell on Instagram, WhatsApp, or a marketplace with no built-in tracking, here's the fastest way to give buyers a real tracking link.