SEO

SEO (Search Engine Optimization) is the general term for measures to improve the display ranking of a website in search engines such as Google. It includes keyword optimization, improving content quality, organizing the internal link structure, improving page display speed, mobile support, acquiring backlinks, and so on.

Because QR codes themselves are not indexed by search engines, they have no direct SEO effect. Search engine crawlers do not analyze QR code images to follow the links in them. However, QR codes have several paths through which they contribute indirectly to SEO.

First, an increase in traffic. When access from QR codes increases, the traffic metrics of the whole site improve, which may work in favor of the evaluation by search engines. Second, an increase in brand searches. When users who learned about a site through a QR code later search for the brand name, that behavior becomes a signal of the brand's authority for search engines. Third, richer content. If you create high-quality content as the landing page of a QR code, that page itself can attract search traffic.

Practical methods for linking QR codes with SEO include using a canonical URL (the normalized URL) as the destination URL of the QR code and keeping redirect chains to a minimum, implementing appropriate structured data (JSON-LD) on the landing page, and designing mobile-first.