Measure the share of pages with no internal inbound links.
The orphan ratio is the share of total pages that pages with no internal inbound links represents, expressed as a percentage. The same figure is also shown per 1,000 and as a "one in every N" odds statement, which is easier to reason about when the rate is very small. Absolute counts hide scale — a rate normalises the number so you can compare periods, channels or cohorts of different sizes, where lower is better.
Orphan Page Ratio
Orphan Page Ratio = Pages with no internal inbound links ÷ Total pages × 100
Orphan Page Ratio = Pages with no internal inbound links ÷ Total pages × 100 The orphan ratio is the share of total pages that pages with no internal inbound links represents, expressed as a percentage. The same figure is also shown per 1,000 and as a "one in every N" odds statement, which is easier to reason about when the rate is very small.
Absolute counts hide scale — a rate normalises the number so you can compare periods, channels or cohorts of different sizes, where lower is better.
This calculator takes 2 inputs: Pages with no internal inbound links, Total pages. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.