How to Ensure that Your QR Code Will Work
The last thing you want is someone scanning your QR Code and then being disappointed when it doesn’t work. In addition to following all of the instructions provided by whatever QR Code generator you choose, follow these three tips to make sure your QR Code will work:
Make sure your QR Codes are at least one-by-one inch. Some older mobile devices can’t read codes smaller than this.
Make sure to use a URL shortener. If you embed a long URL on your QR Code, you’ll increase the chance that the code will be too busy and won’t scan. Shortening the URL produces a cleaner code that’s easily read. Three popular URL shorteners are TinyURL.com, Goo.gl, and Bitly.
Make sure your QR Code has a quiet zone. This is the white area around the actual code that separates the code from what’s around it. When you use a QR Code generator, the QR Code you create will come with a 4mm border that you shouldn’t block or reduce. Every QR Code is unique piece of digital art. Don’t ruin it by removing the frame.

Web Design & Development Glossary
AJAX
asynchronous JavaScript and XML. A technique used in web page development.

Web Design & Development Glossary
API
application programming interface. A set of rules programs use to communicate with each other.

Web Design & Development Glossary
color stop
A special element that indicates a color to be added to a gradient.

Web Design & Development Glossary
FTP
File Transfer Protocol. A network protocol useful for transferring files in a client-server relationship.

Web Design & Development Glossary
HTML
HyperText Markup Language. The predominant language for building web pages.

Web Design & Development Glossary
HTTP
HyperText Transfer Protocol. The primary networking language for the Internet.

Web Design & Development Glossary
PHP
PHP Hypertext Processor. A scripting language that works well within HTML.

Web Design & Development Glossary
socket
A technology that allows remote computers to maintain a persistent connection in order to communicate with each other.

Web Design & Development Glossary
sprite
An graphic object on a web page that will be manipulated in real time.

Web Design & Development Glossary
SQL
Structured Query Language. A programming language useful in managing relational databases.

Web Design & Development Glossary
stateless protocol
An Internet procedure that completely breaks the connection between the client and the server after a transaction, meaning that the next transaction will require an entirely new connection.

Web Design & Development Glossary
Telnet
A network protocol useful in interactive, text-oriented communications.

Web Design & Development Glossary
W3C
World Wide Web Consortium. The organization that sets international standards for the World Wide Web.