Lesson 12 of 1712 minIntermediate
Performance and Core Web Vitals
Field data vs lab data
Lab tools help you debug, but only field data decides whether the fix worked for real users.
Why this lesson matters
This lesson belongs to Performance and Core Web Vitals, the part of Technical SEO Excellence where the goal is: fix the template, not the page.
Read it once, then do it straight away on a real site inside RankAudit. Nothing here is theory for its own sake — every step produces something you can show a client.
Do it now
- 1Open RankAudit with sample data already loaded, so you are not stuck on setup.
- 2Crawl a site and triage the issue list.
- 3Take one template's worst vital in RankAudit, ship one fix, and re-measure after deployment.