We Tested Whether Blogging Improves AI Search Visibility. It Doesn't.

"Start a blog to boost your AI search presence." We've seen this advice in dozens of GEO guides. The logic goes: more content means more for AI to index, more keywords to match, more authority signals. Sounds right.

We tested it across 1,000 businesses. Blog presence showed a negative correlation with ChatGPT visibility.

47% of businesses ChatGPT ignores have a blog. Only 39% of businesses ChatGPT recommends have one. The businesses without blogs were more likely to get recommended.

That's not a typo. Blogging correlated with being ignored, not recommended.

Before you delete your blog: correlation isn't causation. We don't think blogs actively hurt you. What's probably happening is simpler. Businesses that invest in blog content tend to be focused on Google SEO. They're doing the classic content marketing playbook -- weekly posts, keyword targeting, internal linking. That strategy works well for Google. It doesn't appear to move the needle for ChatGPT.

Meanwhile, the businesses ChatGPT recommends tend to have strong fundamentals in other areas. Multiple directory listings. Social profiles linked on their site. Presence on Yelp, Trustpilot, Checkatrade. They built web presence breadth rather than website depth.

ChatGPT doesn't crawl your blog archive. It sends a query to Bing, reads what Bing returns, and picks businesses from those results. A blog post titled "10 Tips for Preventing Frozen Pipes This Winter" might rank well on Google. But when someone asks ChatGPT "who's a good plumber in Manchester," that blog post isn't what Bing surfaces. Bing surfaces your homepage, your directory listings, your review profiles.

Content freshness showed a similar pattern. We checked Last-Modified headers across our dataset. Businesses with fresher content weren't more visible. If anything, the correlation ran slightly negative.

The honest advice: if you enjoy writing blog posts and they bring you Google traffic, keep doing it. But don't start a blog specifically for AI search visibility. That time is better spent on the things that actually correlate with ChatGPT recommendations -- getting listed on multiple platforms, building up reviews on those platforms, and making sure your social profiles are linked on your website.

A blog is a fine thing to have. It's just not an AI search strategy.