Search engine optimization experts say guest-posting content is the most effective way to grow a website's backlink portfolio, according to recent research from SEMrush.

The report was based on data from a survey of 850 SEO and digital marketing specialists.

Some 53% of respondents say guest-posting of content on other sites is an effective way to build backlinks and increase the visibility of a site on search engines.

Other effective strategies include replicating competitors' backlinks (47% of SEO experts surveyed say so), building link resources/link pages for other sites (44%), and getting placed in business directories (39%).