A keyword gap is the set of terms a posting names that your resume does not use. Paste both and you get that list, sorted into the categories below, with the entries worth acting on separated from the ones that are only wording.
Recruiters search their ATS by keyword, so a term your resume never uses is one you cannot be found by — fix that in 60 seconds. The scanner runs on the same engine as the ATS resume checker.
Scan My Keywords →An Applicant Tracking System (ATS) is the database virtually every large US employer stores applications in. Your resume is parsed into text and kept as a searchable record. Nothing scores it on the way in.
What happens later is that a recruiter with a role to fill searches that database for the words the posting uses. A resume describing the same experience in different words is less likely to appear in the results — not rejected, just not returned.
Why it matters:
A recruiter searching their ATS for a term your resume never uses will not see you in the results, however well you match the job.
Which words do postings in your field actually use? The ATS resume keyword study counts them across real job postings, role by role, with the method and its limits.
ATS extracts required keywords from the job description
It scans your resume for those exact keywords
Assigns a match score based on keyword presence
Recruiters and hiring teams narrow the pool using keyword searches, screening rules and other filters. The exact process varies by employer and by ATS.
// Sample Keyword Gap Analysis
Job Requires: Python, Docker, Kubernetes, CI/CD, REST APIs, Agile
Your Resume Has: Python, REST APIs
Missing Keywords: Docker, Kubernetes, CI/CD, Agile
Match Score: 33% ⚠️ — 4 of 6 required terms missing
Programming languages, frameworks, and tools
Behavioral and interpersonal skills
Domain-specific terminology and certifications
Find out which of the posting’s keywords your resume does not use — right now
Keyword Scan
Match score + top 3 missing keywords
Full Report ($12)
All missing keywords + optimized resume
30 Days ($19)
One-time payment, up to 100 scans over 30 days
The scanner checks one thing: which of the skills, tools and qualifications a specific posting names appear in your resume. A match needs direct evidence or clearly equivalent experience, and ambiguous cases count as missing. The score measures closeness to that one posting. It does not predict whether an ATS will pass you, because no applicant tracking system publishes a pass mark.
No — our tool shows you where to naturally incorporate keywords into your existing experience, so it reads authentically to both humans and ATS.
You can paste text directly or upload PDF and DOCX files. We extract and analyze the content automatically.
Scan your resume for every job application. Different jobs require different keywords — a tailored resume for each role dramatically increases your success rate.