The 302.sh blog
Notes on links, redirects and the web underneath them.
Practical guides to redirects, URL shorteners, link analytics and SEO — from the team building 302.sh.
How to Share a PDF With a QR Code—and Replace the PDF Later
Share a PDF through a QR code, check access without the owner's login, and choose a stable file address or an editable short link for later updates.
Read articleCan You Change URL Shorteners and Keep Your Printed Links?
Find out when printed short links can survive a provider change. Check domain ownership, exact path mappings, import limits, HTTPS and rollback before migrating.
Read articleHow to Update a Restaurant Menu Without Reprinting the QR Code
Keep a menu QR code useful when the menu changes. Compare a stable menu URL with an editable short link, and follow a clear update-and-check workflow.
Read articleDo QR Codes Expire? What Actually Stops a Code Working
Learn why a QR code can stop working, what static and hosted codes depend on, and what to check before printing a code you plan to keep using.
Read articleIntroducing the QR Workspace: Branded Codes for Shops and Creators
Preview the new 302.sh QR workspace: save branded menu signs and sharing cards, update destinations, and compare QR entry visits from different placements.
Read articleHow to Create a WhatsApp Short Link and Track Clicks
Build and test a native wa.me link, add optional prefilled text, and learn when an editable short link, QR code or separate click report helps.
Read articleHow to Shorten an Instagram Profile Link and Track Clicks
Share your Instagram profile with a readable short link or QR code, compare clicks from cards and emails, and update the target when your handle changes.
Read articleGoogle Review QR Codes: Create One and Track Each Placement
Get Google's free review QR code, then learn when separate short links help compare receipt and table-sign clicks. Clicks are not completed reviews.
Read articleA/B Testing With Short Links: Split Traffic Between Pages, No Code Required
Run A/B tests from the link itself: send a weighted share of clicks to each landing-page variant — no scripts, no flicker, and it works on any channel.
Read articleShort links,
beautifully managed.