Frequently asked questions about ktzr.io short links

A short link is just a redirect (HTTP 302) to the original address, so it is as safe as the shortener behind it. On ktzr.io every destination is screened against Google Web Risk when it is created or edited, there is no ad or interstitial page, and a disabled link answers HTTP 410 instead of redirecting.

No. A ktzr.io link redirects straight to the destination: no ads, no interstitial page, no tracking pixels.

Sign up for free and create new links here for your destinations, in the app or through the API. The free plan holds up to 100 active links and allows 20 link actions an hour. A new account can create up to 5 links in its first 24 hours. Existing bit.ly links keep working at bit.ly; links cannot be "transferred" between domains, so update the places where your links are published to the new ktzr.io links.

Chaining shorteners hides the final destination and is abused for fraud, so shortening links from other shorteners is blocked. Shorten the original destination address directly.

Yes. The QR code points at the short link, not the destination. You can update the destination whenever you want, and the printed QR keeps working exactly as before. As long as the link is not deleted, the QR is valid.

It stops redirecting and answers HTTP 410 (Gone). Its short address is never assigned to anyone else, so nobody can ever "inherit" a link printed on your invitation.

Link previews (WhatsApp, Telegram, Facebook), search crawlers, and other known bots are identified by their browser signature and counted separately, in a dedicated field. The main number reflects real visitors.

No. Custom back-halves are 3 to 50 characters from Latin letters, digits, hyphen, and underscore (a-z, A-Z, 0-9, -, _). Hebrew in the address breaks in some browsers, printers, and invitation systems, so we chose not to support it. Choosing a custom back-half is currently available to admin accounts only (planned for Pro).

Report it on our abuse page; no account is needed. In addition, every destination is automatically checked against Google Web Risk at creation and on every edit, and rescanned daily during its first 30 days; dangerous links are disabled.

On Google Cloud in the European Union: the database is Firestore in region eur3 and the servers run in Europe. Full details on the privacy page.

The free plan includes 100 active links, 20 link actions per hour (create, edit or delete), a QR code for every link, 90 days of daily statistics with bot filtering, tags, and up to 10 API keys. Deleting a link frees its slot. A new account is limited to 5 links in its first 24 hours (an anti-abuse guard).

No. A link never expires on its own: it stays live until you delete it (or it is disabled for abuse), and its QR code keeps working because it points at the short link, not at the destination.

Not yet. Every link lives on ktzr.io today; custom domains are planned for a later paid plan. Custom back-halves (choosing your own ending) are admin-only today and planned for Pro.

Yes. Build a wa.me link with the number and the prefilled message, paste it into the app, and you get a short link plus a QR code. You can change the number or the message later without replacing the printed link.

Link previews (WhatsApp, Telegram, Slack, iMessage), search crawlers and other known bots are counted separately as bot visits; HEAD requests are never counted at all. The statistics lag by up to a few seconds. The main number reflects real people who followed the link.

No. Katzr.Net is an unrelated service with a different operator. ktzr.io ("קצר", Hebrew for "short") is this site: no ads or interstitial pages, a designed QR code per link, statistics with bots counted separately, an API, and data stored in the EU.

No. The short address and the QR stay the same; only the destination changes. Every destination edit is kept in the link’s history, so you can always see what changed and when.