Find the keywords your resume is missing
Two people with the same experience can get different results from the same application. Often the difference is wording. One resume uses the terms in the posting. The other describes the same work in different language.
A keyword gap isn't a skills gap. It means the reader can't see a skill you have. That's usually quick to fix once you know where the gaps are.
What counts as a keyword
Keywords are the specific nouns in a posting: tools ("Salesforce", "SQL"), methods ("A/B testing", "Agile"), certifications, and named responsibilities ("budget ownership", "client onboarding"). Phrases like "team player" and "self-starter" rarely matter.
Find them for one job, not every job
Generic keyword lists don't help much. What matters is the gap between your resume and this particular posting. Paste both into the fit check and it lists the keywords from the posting that your resume doesn't contain, alongside the skills that already match.
Add them where they're true
For each missing keyword, ask whether you've done it. If you have, add it to a bullet that shows the result, not just to a skills list. "Built weekly SQL reports for the sales team" beats a bare "SQL". If you haven't done it, leave it out. You'll be asked about it.
Re-check before you apply
Run the check again after editing to confirm the gaps closed and nothing important dropped out. You get 2 free checks a day, so make the edits count before you re-run.
FAQ
Will adding keywords get me past applicant tracking systems?
It helps your resume reflect the posting, which both software and people look for. No tool can promise an interview.
How long does the check take?
Not long. Paste the job description and your resume, and the results come back on the same page.