The right way to apply JavaScript to your links for SEO

“Use proper link markup, do not use fragment URLs for links you want crawlers to discover and follow, and you should be building websites that work well with JavaScript and the links will be found,” Martin Splitt, developer advocate at Google, summed up on Google’s Webmaster Conference Lightning Talk Wednesday.

The right way to create links. Using the HTML <a> tag with the destination URL in the href attribute is the most straightforward way to create a link. For example, <a href=””>link</a>.

You can also add JavaScript to a link, allowing you to upgrade its functionality. One example of this might be when a user clicks on a pop-out hamburger menu on one of your pages — the JavaScript could be used to intercept the href and display the hidden hamburger menu.

Don’t leave out the href attribute. It may be tempting to eliminate the href attribute and “clean up” your code, but doing so means that the link will only work if your JavaScript is also functioning properly. Crawlers only access content pointed to with href attributes and if there’s a bug, users can’t access the content the JavaScript is pointing to.

Think twice about fragment identifiers. Fragment identifiers, which are distinguished by a “#” symbol within a URL, point to subsections of a given page, not necessarily a different page. For example, would take the user to a specific point on the page

“Because fragments aren’t meant to point to different content, crawlers ignore them; they just pretend that the fragments don’t exist,” Splitt said. This means that if you build a single-page application with fragment identifiers, crawlers will not follow those links. 

Why we care. Creating links that Google can crawl will help it understand what your site content is about and increase your chances of ranking well for relevant queries. And, while it is not common, some users may choose to browse with JavaScript turned off; when that’s the case, adhering to these practices will ensure that your links still function correctly.

More development tips for SEOs

About The Author

George Nguyen is an Associate Editor at Third Door Media. His background is in content marketing, journalism, and storytelling.

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Channel: SEO – Search Engine Land

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