For SpeakersUpdated May 2026

QR Codes and Public URLs

The three URLs every fanflet has, why the QR keeps working forever, public URL change behavior, and the Web Share button.

The three URLs every fanflet has

Each fanflet ships with three working URLs. Each one has a job. Knowing which to share keeps your audience out of broken links forever.

Public URL. fanflet.com/{your-link}/{public-url}. Human-readable. Use this in posts, email signatures, and on slides where you want people to read the URL.
Permanent UUID redirect. fanflet.com/f/{uuid}. The QR code points at this URL. It never changes for the life of the fanflet. It forwards to the current public URL on every visit.
Access-token URL. fanflet.com/a/{token}. When you turn on an access code, the QR encodes this token URL instead. Scanners skip the code prompt because the token grants entry. See Access Codes and Expiration for the full flow.

Why the QR encodes the UUID, not the public URL

A QR code is a fixed image. Once printed on a slide deck, a poster, or a handout, you do not get to update it. So the QR points at a stable identifier instead of a customizable public URL.

The UUID is generated when the fanflet is created. It never changes. Change your public link. Change the fanflet public URL. Republish a year later. The QR still resolves and forwards a scanner to the current public page.

Print once, reuse forever

The same QR works for the same fanflet across multiple events. If you give the talk again next year, scan the existing code and confirm it still points where you want.

Downloading and printing your QR

Open a fanflet from the dashboard and click QR Code. You get four ways to take it with you.

Download a 1200px PNG

Use this for slide decks, social posts, and any spot where a raster image works. The file is square, transparent on white, and includes the Fanflet mark in the center.

Download an SVG

Use this for print. SVG scales to any size without blur. Hand it to a printer for posters, banners, or business cards.

Copy Image to clipboard

Paste straight into Keynote, PowerPoint, Google Slides, Notion, or a chat thread. No download step.

Share QR Code

On phones and tablets the Share button opens the native share sheet so you AirDrop, message, or save the QR. On desktop browsers without share support, it downloads the PNG instead.

Tips for printing

Size on a slide. Aim for at least 2 inches square at display size. Bigger is better. People in the back rows need a clear target.
Contrast. Keep the QR on a white or light background. Dark backgrounds confuse most camera apps. The Fanflet QR uses navy on white so it scans cleanly under harsh stage lighting.
Where to place it. Put the QR on your final slide. Add it to a persistent footer if your deck supports one. Hold the slide for at least 60 seconds so the room has time to scan.
What to say.Tell the room: "Scan this for every resource from today." Mention it once at the top of your talk so the audience listens instead of frantically taking notes.

Custom fanflet public URLs

When you create a fanflet, the form has a Public URL field. Type a short word or phrase and the form checks availability in real time. Hyphens and lowercase letters work best.

Leave it blank and Fanflet generates a public URL for you from the title. You can change it later from the fanflet's Access tab. Old public URLs continue to forward (more on this below).

Public URL rules

Lowercase letters, numbers, and hyphens. No spaces. A short, memorable public URL looks better in print and reads better on a slide.

Changing your public link

Your public link is the first segment of every public URL (the part after fanflet.com/). Change it from Settings, reached through the account menu in the top-right of the dashboard.

14-day cooldown. After a successful change, the public link field locks for 14 days before another change goes through. This prevents thrash and protects anyone who saved your old link.
Old public links keep working. Fanflet records every prior public link and serves a 301 redirect from the old URL to the new one. Existing posts, bookmarks, and email signatures forward on their own.
Retention window. Old public links forward for 90 days after the change. After 90 days the redirect is purged and the old public link becomes available again.

What never breaks

Three things are permanent. Use these when you need a link with a life longer than your public URL history.

The QR code image, in PNG or SVG.
The /f/{uuid} redirect URL.
Links shared from the Share QR Code button (the payload contains the permanent URL).

What does break

The 90-day window covers anyone forwarded from an old public link. After the window closes, two situations stop working.

A scanner who saved a screenshot of an old public URL and types it from memory after 90 days.
A blog post or directory listing with the old URL nobody updated. Links shared as the QR or as /f/{uuid} keep working regardless.

Plan public link changes ahead of an event

Avoid changing your public link in the week before a talk. Pick the link you want, lock it in, then print and share.

Sharing a fanflet

The QR page has a Share QR Code button. On phones and tablets it opens the native share sheet with the QR image attached and the public URL pre-filled. AirDrop to a colleague, drop it into a group chat, or text it to a co-host.

On browsers without native share, the button falls back to a PNG download. Use the Copy Image button to paste the QR into a slide deck, and the copy icon next to the URL to grab the link on its own.

Access codes and expiration covers when the QR encodes a token URL.
Creating your first fanflet walks through the Public URL field on the new-fanflet form.

Dynamic Content: Update Once, Update Everywhere

Access Codes and Content Expiration