Monthly reports
May 2026
In May 2026, 5,545 Schema.org terms are tracked: 958 types and 4,587 properties, with 43 in the 10M+ tier.
Tracked terms5,545
Types958
Properties4,587
10M+ tier43
Eligible575
Rising0Declining: 0
Tier share over time
Of 5,545 terms, 4,264 (77%) cluster in the < 1K tier — a long tail typical of the web, with many niche terms and very few pervasive ones. Only 43 exceed 10M domains, the rarefied set every site competes for.
Properties (4,587) outnumber types (958) by roughly 4.8× — unsurprising, since each type carries several properties. The gap holds at the very top: the 10M+ tier alone contains 31 properties and 12 types.
Types vs Properties
Tier structure month by month
Each cell is the number of terms in a tier that month, with log-scaled shading. The grid gains a column every month.