Preview
What it is.
Glen Allsopp runs Detailed, and the work behind it is monitoring 2,114 websites across 23 niches for ranking changes, link buying, and who owns what. The emails are where the findings land.
Three a month at most, and each one tends to be a report with the companies named, which is the part most SEO writing leaves out.
The reports stay free and open on the site, so you can read a year of them before you subscribe.
What you get.
- Up to 3 emails a month, each usually built on a dataset
- Named companies and named sites, including the ones buying links
- Coverage of who owns the publishers ranking above you
- Reports on GEO and AI search from the same monitoring set
- Free access to the full report archive on the site
Editions we'd start with.
How Digital Goliaths Are Deploying AI to Grow Traffic & Revenue ↗
July 2026. What the largest publishers are doing with AI, with the sites named.
How 16 Companies Dominate Google Search Results ↗
The report he's best known for. Read it before you plan a content bet in a crowded niche.
Analysing 250,000 Search Results to See Who Ranks ↗
The dataset behind most of his arguments about concentration in search.
An EVP at Intuit Says GEO is Here to Stay ↗
An enterprise view on AI search, which is rarer than agency commentary.
How I Track New Links to 180+ Brands for Content & PR Insights ↗
His monitoring setup, described in enough detail to copy the approach.