Glossary
Freshness signal
Definition
Freshness signal is evidence that a page has been recently published or updated.
Why it is a temptation and a trap
Roughly 65% of AI-crawler activity targets recently published or updated content, which makes update dates genuinely valuable.
Which is exactly why faking them is not a shortcut but a lie with a penalty attached. Every review date on this site changes only when a figure does.
More terms
Demographic transition
The shift from high birth and death rates to low birth and…
Ageing index
The number of people over 65 per 100 people under 15.
Dependency ratio
The number of people outside working age relative to those inside it,…
Citation
A link or reference an answer engine gives for a claim it…
Screen time
Time spent looking at a screen — a term so broad that…
Net enrolment ratio
Enrolment of the official age group as a share of that age…