Original Research & Studies5 min read
The Most-Cited Domains in AI: A 3-Month Study
We studied the domains most frequently cited by AI tools and found a significant drop for Reddit and Wikipedia. See the research.
Original Research & Studies
Stay on top of the SEO industry with original research and studies. Here are the latest data-backed resources.
Original Research & Studies7 min read
Do Backlinks Still Matter in AI Search? Insights from 1,000 Domains [Study]
We analyzed 1,000 domains to uncover how backlinks influence AI-generated answers. The verdict: quality and authority drive visibility in AI search.
Original Research & Studies10 min read
We Analyzed 26K Quora URLs Cited in Google AI Mode: Here’s What Works
We analyzed 26,000 Quora URLs cited in Google AI Mode and partnered with Quora’s team to uncover the patterns behind content that surfaces in AI answers.
Original Research & Studies3 min read
ChatGPT Is Not Replacing Google—It’s Expanding Search [Study]
New research shows ChatGPT is not replacing Google Search—usage remains steady post-ChatGPT adoption.
Original Research & Studies5 min read
SEO Split Test Result: Does Quality Content Work for Ecommerce SEO?
Content on an ecommerce product site is a challenging topic. It is difficult to produce content that differentiates you from your competition. It’s even more difficult to quantify if it is valuable. This SplitSignal test looked at the value of producing quality content for an ecommerce site.
Original Research & Studies4 min read
SEO Split-Test Result: Do Numbers in Title Tags Affect CTRs?
Want to know if deleting numbers in some of your title tags affects search performance? Check out the test.
Original Research & Studies4 min read
SEO Split Test Result: How Boilerplate Content Can Impact SEO Performance
SEOs have been discussing how Google treats boilerplate content. We wanted to know if heading tags in boilerplate content affect organic traffic.
Original Research & Studies5 min read
Does Adding Updated and the Year to Your Title Tag Help with Organic Traffic?
Want to know if having the text “(updated)” and the year at the beginning of the title would make people more likely to click on an organic result? Check out the test.
Original Research & Studies5 min read
SEO Split Test Result: Adding Keywords to One or Two Word Title Tags
We decided to see if adding keywords to location tags is a guaranteed SEO win. Read to find out.
Original Research & Studies5 min read
SEO Split Test Result: Adding Unicode Characters to the Meta Description
Using special characters or emojis in page titles and meta descriptions always generates a lot of discussion within the SEO community. “Is it advisable to use them?”, “Is it good or bad for your SEO performance?“.