Every Domain Is Categorized
An independent count over all 5,000,000 rows of our 5 million domain database confirms that 100% of domains carry at least one category — there are no uncategorized records.
5,000,000
Domains in database
5,000,000
With ≥1 category
Categories assigned per domain
Each domain is assigned one or more content categories. The table shows how many domains received exactly N categories. Every domain has at least one; many carry several.
| Categories assigned |
Domains |
Share |
Distribution |
| 1 categories |
3,350,808 |
67.02% |
|
| 2 categories |
1,185,533 |
23.71% |
|
| 3 categories |
382,908 |
7.66% |
|
| 4 categories |
62,859 |
1.26% |
|
| 5 categories |
13,070 |
0.261% |
|
| 6 categories |
3,069 |
0.061% |
|
| 7 categories |
1,054 |
0.021% |
|
| 8 categories |
425 |
0.0085% |
|
| 9 categories |
160 |
0.0032% |
|
| 10 categories |
62 |
0.0012% |
|
| 11 or more categories |
52 |
0.0010% |
|
| Total (domains with ≥1 category) |
5,000,000 |
100.00% |
|
Domains with exactly 1 category3,350,808
Domains with 2 or more categories1,649,192
Total domains with at least one category (sum of the above)5,000,000 / 5,000,000
How this was measured. The figures come from a complete, row-by-row pass over the delivered 5 million domain database file (no sampling). A "category" here is a content-category label assigned to the domain; a single domain can hold several. In addition to these content categories, every domain is also assigned an IAB Content Taxonomy classification (both IAB v2 and IAB v3), so no domain is left unclassified in either taxonomy. Counts are fixed for this database snapshot.