What it is?

A QR -"Quick Response", is the code that allows its contents to be decoded at high speed. QR is a type of 2D barcode, also known as mobile tagging because smartphones can be used to read the codes.
Where to use?
Here are a few ways that we can use QR codes for the SEO practices.
- On business cards: A fast and simple way to use QR codes for our own professional purposes.
- On marketing materials: We can print this QR Code on fliers, brochures, programs, handouts, whitepapers and a myriad of other materials in our media kit.
- For freebies: If we really want people to pay attention to our QR codes, make them good for something fun. Say we’ve placed a QR code decal in our storefront window, why not reward those who scan it with 10% off their purchase or a free pastry?
Advantages:
- QR Codes can be used to store addresses and URLs that can appear in magazines, on signs, buses, business cards or just about any product that users might need information about. For brands, QR codes are a really cost effective way to provide more information and drive consumers online, which will increase traffic to our website. QR codes are interactive by their very nature and allow engagement to be measured.
Disadvantages:
- 2D barcodes have many disadvantages, which are currently hindering their adoption in the West. With so many different code versions from 'QR' to Microsoft's 'Tag', there is no standard reader. Therefore, a consumer has to download multiple readers in order to scan different codes.
- Subsequently, the vast majority of mobile manufactures have resisted pre-installing QR code readers on their handsets. Consumers have to download the correct app to read the code. They then have to open the app each time to scan a code, which can take longer than typing in a URL.
- If we going to use QR codes for small business marketing, we have to keep in mind that QR codes — and the apps that scan them — are still foreign to most people.
QR V/s SEO
QR Codes are essentially paper-based hyperlinks that can be translated by smartphones, and lead to websites which will increase traffic to our site. Many newspaper advertisers, like restaurants, use them to offer special deals that are not available to the average reader.
If you add them to your website, the search engines will see that your pages have changed, and that you are updating pages. The search engine will see a new image and index it accordingly. At some point soon, the search engines will likely recognize QR codes and possibly index the content in them.
Until the use of QR codes becomes a bit more familiar, the SEO and SEM implications for using them are going to be up in the air. The game-changing reality of the mobile internet is going to have a radical impact on how sites make money in the future, and QR codes may very well be the bridge between print and digital that keeps our brand in the viewer’s mind.
QR V/s Google
In a rather unusual move to promote its services, Google has started sending out stickers of business entities on its Places Pages to various locations. Those are not ordinary stickers though as they bear QR Codes which can be scanned by supported mobile phones which are then linked to the specific businesses on Google Places Pages.
More than 100,000 local businesses have been sent out with these stickers, and chances are you might see these stickers on local shops in the coming days. These businesses are the most sought out and researched businesses on both Google.com and Google Maps.
Google will let us write a review about a particular product or store, right there on the spot.
But Google now stopped issuing the QR Codes.
Conclusion:
- QR codes are graphics that can take a mobile phone's browser to a page on the web, through this we can increase traffic to our websites.
- Google used to automatically offer businesses that use Google Places a QR code for their web site but Google quietly stopped offering that code and has removed the code for those who already had it.
- Google is likely trying to prep or nudge the market for NFC.
- NFC = Near Field Communication; another way to get info from "something" into a mobile phone.
- QR codes aren't going away yet as they're cheap & flexible.