30x redirects don’t lose PageRank anymore
One major concern among search engine optimization (SEO) specialists is related to the impact that a 301 redirect may have on the PageRank of a website. Back in 2010, webmasters and SEO professionals knew that a 301 redirect, method to send visitors and search engine spiders to a different URL, caused some PageRank dilution. Google never confirmed this.
After years of uncertainty, the SEO world has received confirmation about what really happens to PageRank when a 301 redirect is implemented. A Twitter update by Gary Illyes, who is in charge of analyzing webmaster trends for Google, confirmed that PageRank is no longer lost with 301 redirects.
PageRank is the main Google search algorithm that supposedly determines how websites are listed on the search engine results page (SERP). Although PageRank is a trade secret, Google tries to work with the SEO and webmaster community in an effort to be on the same page. For this reason, Google sometimes drops hints about how PageRank handles certain website features.
Matt Cutts, the main engineer in charge of SEO and search quality at Google, somewhat explained in 2013 that 301 redirects did not affect PageRank negatively. The SEO community was not convinced by the statement because it came across nebulously.
Aside from the assurances by Mr. Cutts and Mr. Illyes, another Google search quality engineer recently told a prominent SEO industry website that 301 and even 302 redirects have not impacted PageRank for a while.
SEO experts have previously suspected that permanent 301 redirects and temporary 302 redirects do not affect PageRank, and they have made this determination by means of live testing. Now that Google has come clear on its 301 redirect and PageRank policy, it is up to the SEO community to conduct live testing on other major search engines such as Bing.