Digital Business Card
Definition
A digital business card does the job of the printed one without the card stock. It is a single short page: name, title, organisation, a photograph or logo, a phone number and an email address as tappable links, and whatever else genuinely belongs — a booking page, a portfolio, a location. The useful addition over paper is a .vcf file, the standard contact format, which phones recognise and offer to add to contacts in one tap. People arrive by scanning a QR code on a badge, a slide or a shop window, or by tapping a link in an email signature. None of it needs a server; it is a page and a file.
Why It Matters
A paper card has to be kept, carried and typed up later, and most of them are not. A card that goes into the address book during the conversation survives; one in a jacket pocket usually does not. Updating is the other half of it: a new phone number means reprinting a box of five hundred, or editing one page. Because the page is yours, the details stay correct for somebody who scanned the code a year ago, which is never true of a card printed with your last employer on it.
How It Works
The page is static HTML using tel: and mailto: links, so a tap dials or composes rather than selecting text. The contact file sits beside it — contact.vcf, served as text/vcard — and both iOS and Android offer to create a contact when one is opened. Whether the browser saves that file or tries to display it is decided by the Content-Disposition header, which is why a .vcf that opens as a wall of text is a header problem and not a file problem. Point the printed code at the page, not at the .vcf directly, so you can change what the page offers without reprinting anything. Keep the address short and human, firstname-lastname is plenty, because people read these aloud more often than you would expect.
Real-World Example
A freelance translator publishes at marc-devlin.99helpers.site: a 12 KB page, a small photograph, tel and mailto links, and a contact.vcf beside it. The scannable code goes on the back of his conference badge and into his email signature. Across a two-day trade fair he is saved into roughly thirty address books without handing over a single card, and when he changes number in the spring, every one of those saved codes still resolves to the correct details.
Common Mistakes
- ✕Pointing the code straight at the .vcf file — some scanners download it silently and the person never sees who you are, so send them to the page and let them choose
- ✕Printing a third-party shortener into the code — when that service closes, every badge and window sticker becomes a dead end you cannot edit
- ✕Listing everything you do — a business card is read standing up in a noisy room, and three lines beat thirty
Related Terms
QR Code
A QR code is a square barcode that stores a short piece of text, most often a URL, so a phone camera can open it without anyone typing. It is a picture of a link.
Link in Bio
A link in bio page is one page holding all the links a social profile has no room for, so that the single link a platform allows can point at everything. It works best at an address you own rather than one you rent.
Resume Website
A resume website is your CV built as a web page at its own address, so it can be sent as a link instead of attached as a file. It is a page meant to be read in a minute, usually on a phone.
Content-Disposition
Content-Disposition is an HTTP response header that tells the browser whether to show a file in the window or save it to disk, and what name to suggest when it saves. It is how one URL can either open a PDF in a tab or start a download.
Short Link
A short link is a compact URL that redirects to a longer one. It exists to be typed, printed, read aloud or squeezed into a character limit.
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