One missing validThrough field was hiding 60% of a job board's listings — added it, postings tripled in Google

One missing validThrough field was hiding 60% of a job board's listings — added it, postings tripled in Google Jobs
A niche job board had JobPosting markup on 8,000 roles, but 4,800 lacked validThrough. Google de-prioritizes undated postings as potentially stale, so most never surfaced in the Jobs experience. The team backfilled validThrough from their internal expiry dates and added employmentType where blank.
— Google Jobs appearances tripled within four weeks
— Apply-click traffic from Jobs up 47% month over month
What it means for you: Google treats undated job posts as expired risk. validThrough is the single field that decides whether you're in the Jobs box at all. Watch this: expiry data sitting in your ATS is the easiest schema backfill on this list.