How To Use The Hash Symbol

Rand Fishkin calls the "hash" or "pound symbol" a "powerful SEO tool" that many experts rarely use. Demonstrating ways to use it in his video series Whiteboard Friday, Fishkin says that "search engines don't index anything after the hash" sign in a line of code. "The hash is essentially a stopping point, an on-page anchor."

You can use the hash sign in applications including canonicalization and affiliate URLs, and when you want to show limited content on a page. The video provides reasons for using the hash sign in these applications, as well as the proper ways to insert the symbol in the code. "Consider it as a URL parameter that doesn't get separately indexed, or segmented, from the engines," Fishkin says.

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