Why source verification matters
External job listings can change quickly. The posted date, employer identity, compensation language, contract details, and route to apply may not stay constant across every page that references the role. A short source check helps you avoid working from stale assumptions. It is often the fastest quality filter you can apply before rewriting your summary, adjusting bullets, or uploading a resume anywhere.
The goal is not to become suspicious of every listing. The goal is to confirm that the role still looks active and coherent enough to deserve your effort.