ATS Optimization

How to Test If Your Resume Is ATS Compatible: 3 Reliable Methods

Reviewed byRankMyCV Editorial Team
7 min read
Resume optimization workflow with notes about ATS compatibility and job targeting

ATS optimization

How to Test If Your Resume Is ATS Compatible: 3 Reliable Methods

Stop guessing if a robot can read your CV. Learn three proven ways to test your resume's parsing capability before you submit your application.

Design-heavy resumes fail this way all the time. A file can look polished to a human reader and still parse badly when an ATS tries to extract contact details, section headers, or work history.

When that happens, the problem is not usually your qualifications. The problem is that the system is reading the document in the wrong order, skipping fields, or flattening the layout into unusable text.

This is the kind of failure pattern you are trying to catch before you apply:

[UNABLE TO PARSE]
Name: [MISSING]
Email: [MISSING]
Phone: john.doe@email.com  ← (This was supposed to be my email, not phone)

Work Experience: [NONE DETECTED]

Skills: [EMPTY]

Two-column layouts, icons, tables, and header-based contact details are common causes of these parsing failures.

Here's how to test whether your resume has the same problem and how to fix the most common issues before you submit it.


What "ATS-Compatible" Actually Means

ATS (Applicant Tracking System) compatibility isn't about making your resume "look boring." It's about ensuring the software can actually read your information correctly.

Here's what happens when you apply:

  1. You upload your resume (PDF or DOCX)
  2. The ATS attempts to parse the text
  3. It extracts your name, contact info, work experience, education, and skills
  4. It stores this data in a structured database
  5. Recruiters search this database using keywords
  6. If your info didn't parse correctly, you don't appear in searches

The problem: ATS parsers are terrible at handling anything non-standard. Tables confuse them. Text boxes break them. Graphics and icons are invisible to them. Creative layouts scramble the reading order.

A resume that looks perfect to you might be completely unreadable to an ATS.


The 5-Minute ATS Compatibility Test

You don't need expensive software to test this. Here's a quick method that catches the most common ATS parsing issues:

Test #1: The Plain Text Test (90 Seconds)

This is the fastest way to see what an ATS actually sees when it reads your resume.

Steps:

  1. Open your resume PDF
  2. Select all text (Ctrl+A or Cmd+A)
  3. Copy it
  4. Paste into a plain text editor (Notepad, TextEdit, or any basic editor)

What you're looking for:

Good signs:

  • Text appears in logical order (name, then contact, then experience)
  • Work experience is readable with dates and companies
  • Skills are listed clearly
  • No weird symbols or formatting gibberish

Bad signs:

  • Text is jumbled or out of order
  • Contact info is scrambled or missing
  • Job titles appear before company names (wrong order)
  • Text from sidebars is mixed into main content
  • Bullet points show as weird characters (■, □, ●)
  • Large gaps where text should be

Real example of a failed plain text test:

JOHNWORK EXPERIENCE
doe@email.com | Software Engineer2021-2023 TechCorp
New York, NY | Built APIs using Python
and PostgreSQL555-123-4567 Improved performance by 40%
EDUCATION SKILLS
Python JavaScript
Bachelor of ScienceReact Node.js
Computer Science SQL AWS
University of CaliforniaDocker Git

This resume had a two-column layout. The ATS read left-to-right across both columns, mixing everything together. "JOHNWORK EXPERIENCE" is supposed to be "JOHN DOE" in the left column and "WORK EXPERIENCE" as a header in the right column.

A recruiter searching for "Python" might find this resume, but they'll see gibberish when they open it.


Test #2: The Upload Test (2 Minutes)

Most ATS platforms offer a preview of how they parsed your resume. Some career sites (like Indeed or LinkedIn Easy Apply) show you what information they extracted. Use this to your advantage.

Steps:

  1. Go to Indeed.com
  2. Click "Upload your resume"
  3. Upload your resume file
  4. Indeed will show you what it extracted: name, email, phone, work history, skills

What you're looking for:

Good signs:

  • All fields populated correctly
  • Work history shows companies, job titles, dates in the right order
  • Skills section includes your actual skills
  • Contact info is accurate

Bad signs:

  • Any field says "Not detected" or is blank
  • Job titles are in the wrong company
  • Dates are missing or incorrect
  • Skills section is empty or has random words
  • Your name is missing or wrong

If Indeed can't parse your resume correctly, most ATS platforms won't either. They all use similar parsing technology.


Test #3: The Automated ATS Checker (2 Minutes)

This is the most accurate test. Use an actual ATS simulation tool that analyzes your resume like a real ATS would.

Steps:

  1. Go to RankMyCv's free ATS checker
  2. Upload your resume
  3. Paste a job description (any job description in your field)
  4. Review the analysis results

What you're looking for:

Good signs:

  • Major sections are detected correctly
  • Contact info parses correctly
  • Work history appears in the right order
  • Keywords are identified in the sections where you actually use them

Problem signs:

  • Warning flags about formatting
  • Missing sections (education, experience, skills not detected)
  • Garbled extraction order
  • Contact details or dates landing in the wrong fields

Why this matters: a live ATS-style checker is a useful proxy for parsing risk. It is not a perfect clone of every platform, but it can expose the same kinds of structural issues that show up in real application flows.


Common ATS Parsing Errors (And How to Fix Them)

These issues show up repeatedly in resumes with parsing problems:

Error #1: Contact Info Not Detected

Symptoms:

  • Name missing or incorrect
  • Email/phone in wrong fields
  • Location not detected

Common causes:

  • Contact info in a text box or header (ATS can't read headers reliably)
  • Contact info uses icons instead of labels
  • Email/phone formatted unusually

Bad (ATS can't parse this):

[Resume header/text box]
📧 john.doe@email.com  📱 555-123-4567  📍 San Francisco, CA

Good (ATS reads this correctly):

[Standard text at top of resume, not in header]
John Doe
Email: john.doe@email.com | Phone: 555-123-4567 | Location: San Francisco, CA
LinkedIn: linkedin.com/in/johndoe

Fix: Move contact info out of headers/footers into the body of the document. Use text labels ("Email:", "Phone:") instead of icons.


Error #2: Two-Column Layouts Scramble Content

Symptoms:

  • Plain text test shows jumbled content
  • Work experience mixed with skills
  • Headers appear in wrong places

Cause: ATS reads left-to-right, top-to-bottom. A two-column layout gets read across both columns, mixing everything together.

Bad (two-column layout):

[Left Column]          [Right Column]
JOHN DOE              WORK EXPERIENCE
Email: john@email     Software Engineer
Phone: 555-1234       TechCorp | 2021-2023
                      • Built APIs
SKILLS                • Improved performance
Python, SQL, AWS      

What ATS sees:

JOHN DOE WORK EXPERIENCE
Email: john@email Software Engineer
Phone: 555-1234 TechCorp | 2021-2023
SKILLS • Built APIs
Python, SQL, AWS • Improved performance

Good (single-column layout):

JOHN DOE
Email: john@email.com | Phone: 555-123-4567

WORK EXPERIENCE
Software Engineer | TechCorp | 2021-2023
• Built APIs using Python and PostgreSQL
• Improved performance by 40%

SKILLS
Python, SQL, AWS, Docker, Git

Fix: Use a single-column layout. If you must use two columns, put only supplementary info (skills, certifications) in the sidebar—never work experience.


Error #3: Section Headers Not Recognized

Symptoms:

  • Work experience shows as blank
  • Education missing
  • Skills not detected

Cause: ATS looks for standard section headers like "Work Experience," "Education," "Skills." Creative headers like "What I've Built" or "Where I've Been" confuse it.

Bad (ATS doesn't recognize these):

CAREER JOURNEY
WHAT I'VE LEARNED
MY TECHNICAL TOOLKIT

Good (ATS recognizes these immediately):

WORK EXPERIENCE
EDUCATION
SKILLS

Standard headers that ATS recognizes:

  • Work Experience / Professional Experience / Employment History
  • Education
  • Skills / Technical Skills / Core Competencies
  • Certifications
  • Projects (less universal, but widely recognized)

Fix: Use boring, standard headers. Save creativity for your LinkedIn profile.


Error #4: Tables and Text Boxes Break Parsing

Symptoms:

  • Content in tables doesn't appear in plain text test
  • Large gaps where text should be
  • Random characters or formatting symbols

Cause: Many ATS platforms can't parse tables or text boxes. The text is literally invisible to them.

Bad (ATS can't read tables):

[Table format]
┌─────────────────┬──────────────────┐
│ Company         │ Role             │
├─────────────────┼──────────────────┤
│ TechCorp        │ Software Engineer│
│ 2021-2023       │ Built APIs       │
└─────────────────┴──────────────────┘

Good (plain text):

Software Engineer | TechCorp | 2021-2023
• Built RESTful APIs using Python and Django
• Deployed microservices to AWS ECS

Fix: Remove all tables. Convert table content to plain text with clear formatting.


Error #5: Graphics, Images, and Icons Are Invisible

Symptoms:

  • Skills section appears empty (used icons instead of text)
  • Rating bars for skill levels don't appear
  • Company logos are missing (obviously)

Cause: ATS can only read text. Graphics, images, icons, skill rating bars—all invisible.

Bad (ATS sees nothing):

Skills:
[Python icon] ★★★★★
[SQL icon] ★★★★☆
[AWS icon] ★★★☆☆

Good (ATS reads text):

Technical Skills:
• Languages: Python, JavaScript, SQL
• Frameworks: Django, React, Node.js
• Cloud: AWS (EC2, S3, Lambda, RDS)

Fix: Remove all graphics. Use plain text for everything. Don't use star ratings or skill bars—they're meaningless to ATS (and most recruiters).


Error #6: Unusual Fonts or Font Sizes Cause Errors

Symptoms:

  • Some text missing in plain text test
  • OCR-style errors (letters misread)

Cause: Decorative or very small fonts can cause parsing issues, especially if the ATS uses OCR (Optical Character Recognition) on PDFs.

Bad fonts:

  • Script/handwriting fonts
  • Decorative fonts
  • Fonts smaller than 10pt
  • All-caps headers in unusual fonts

Safe fonts:

  • Arial
  • Calibri
  • Helvetica
  • Times New Roman
  • Georgia
  • Verdana

Safe font sizes:

  • Body text: 10-12pt
  • Headers: 14-16pt
  • Name: 18-24pt

Fix: Stick to standard professional fonts. Keep body text at 10-12pt minimum.


Error #7: PDFs with Images Instead of Text

Symptoms:

  • Entire resume shows blank in plain text test
  • ATS shows "Unable to parse"

Cause: Some PDF creation tools save text as images. The ATS sees a picture of text, not actual text.

How to test: Open your PDF and try to select/copy text. If you can't select individual words, your PDF is image-based.

Fix: Recreate your resume and export as PDF using "Text" mode, not "Image" mode. In Microsoft Word: File > Save As > PDF > Options > "ISO 19005-1 compliant (PDF/A)" unchecked.


The ATS-Friendly Resume Format That Always Works

Across common ATS workflows, this conservative structure tends to be the safest option:

File Format

  • Use .DOCX or PDF (PDF is safer for preserving formatting, but DOCX is slightly better for older ATS)
  • Name your file properly: "John_Doe_Resume.pdf" not "Resume_Final_v3_REVISED.pdf"

Layout

  • Single-column layout (no sidebars)
  • No headers/footers (put contact info in body)
  • No text boxes, tables, or columns
  • Standard margins: 0.5" to 1" on all sides

Contact Information (Top of Page)

JOHN DOE
Email: john.doe@email.com | Phone: 555-123-4567 | Location: San Francisco, CA
LinkedIn: linkedin.com/in/johndoe | Portfolio: johndoe.com

Section Headers (Use These Exact Phrases)

PROFESSIONAL SUMMARY (optional)

WORK EXPERIENCE

EDUCATION

SKILLS

CERTIFICATIONS (if applicable)

PROJECTS (if applicable)

Work Experience Format

Job Title | Company Name | Start Date - End Date
• Bullet point describing achievement with metrics
• Another bullet with specific technologies and impact
• Third bullet showing collaboration or leadership

Example:
Backend Engineer | TechCorp | January 2021 - Present
• Built RESTful APIs using Python (Django) and PostgreSQL, serving 100K+ daily users
• Reduced API response time by 65% through query optimization and Redis caching
• Collaborated with frontend team to design GraphQL endpoints, reducing API calls by 40%

Skills Format (Simple List)

TECHNICAL SKILLS
• Languages: Python, JavaScript, SQL, Java
• Frameworks: Django, React, Node.js, Spring Boot
• Databases: PostgreSQL, MongoDB, Redis
• Cloud: AWS (EC2, S3, Lambda, RDS), Docker, Kubernetes
• Tools: Git, Jenkins, Jira, Postman

Don't:

  • Use skill rating bars or stars
  • Group by "Expert / Advanced / Beginner"
  • Use icons
  • Put skills in tables

Education Format

Degree Name | Major | University Name | Graduation Year

Example:
Bachelor of Science in Computer Science | University of California, Berkeley | 2020
GPA: 3.8/4.0 (optional, only if strong)

Test Your Resume With a Live Checker

One of the fastest ways to pressure-test your resume is to run it through an ATS-style checker and compare the extracted sections with your original file.

Here's what to do:

  1. Go to RankMyCv's free ATS checker
  2. Upload your current resume
  3. Paste any job description from your field
  4. Review the extracted sections, parsing warnings, and keyword feedback

What to pay attention to:

  • Whether your sections are detected correctly
  • Whether contact details and dates land in the right places
  • Whether the analysis flags formatting problems or missing content
  • Whether the keyword feedback matches the target role you pasted in

RankMyCv will show you exactly what's wrong:

  • Which sections aren't parsing
  • Which keywords you're missing
  • Formatting issues causing problems
  • Specific recommendations to fix each issue

Once you can see what's broken, the fixes are usually much more obvious than the original problem.


What to Do If Your Resume Fails the Test

If your ATS compatibility score is below 70%, here's the priority order for fixes:

Priority #1: Fix Contact Info Parsing

Move your name, email, phone, and LinkedIn out of headers/footers and into the body as plain text. This is the most critical—if recruiters can't contact you, nothing else matters.

Priority #2: Simplify Layout

Remove two-column layouts, tables, and text boxes. Convert everything to single-column, plain text.

Priority #3: Use Standard Section Headers

Change creative headers like "My Journey" to standard headers like "Work Experience."

Priority #4: Remove Graphics and Icons

Delete all images, icons, logos, and skill rating bars. Replace with plain text.

Priority #5: Add Missing Keywords

Run your resume through RankMyCv against a target job description. Add the missing keywords it identifies—these are what ATS is searching for.


Illustrative Before/After Example

Here's an illustrative example of the kind of change you can get when parsing problems are fixed:

Before:

  • Two-column layout with sidebar
  • Contact info in header with icons
  • Skills shown as rating bars
  • Creative section headers ("What I've Built," "My Toolbox")
  • Work experience in a table

After:

  • Single-column layout
  • Contact info as plain text at top
  • Skills as bulleted text list
  • Standard headers ("Work Experience," "Skills")
  • Work experience as plain text with bullets

The point is not one universal percentage jump. The point is that parsing fixes can change whether your experience is readable at all.


Advanced ATS Tip: Keyword Placement Matters

It's not enough to have the right keywords—they need to be in the right places.

ATS often weighs keywords differently based on where they appear:

  1. Job titles - Highest weight (put target job title here)
  2. Work experience bullets - High weight (put technical keywords here)
  3. Skills section - Medium weight
  4. Summary - Low-medium weight

Example: Optimizing for "Python" keyword

Weak (only in Skills):

SKILLS
Python, JavaScript, SQL

WORK EXPERIENCE
Backend Developer | TechCorp | 2021-2023
• Developed APIs for web application
• Improved performance by 40%

Strong (in Job Title + Experience + Skills):

WORK EXPERIENCE
Python Developer | TechCorp | 2021-2023
• Built RESTful APIs using Python (Django framework) and PostgreSQL
• Optimized Python code, reducing API response time by 40%

TECHNICAL SKILLS
• Languages: Python, JavaScript, SQL

Notice "Python" appears in:

  • Job title (highest weight)
  • Work experience bullets with context (high weight)
  • Skills section (medium weight)

This resume will rank higher in ATS searches for "Python developer" than one where Python only appears in the skills section.


Mobile-Friendly Bonus Tip

Many recruiters review resumes on mobile devices. If your formatting breaks on mobile, they might skip you even if ATS passes you through.

Quick mobile test:

  1. Email your resume to yourself
  2. Open it on your phone
  3. Can you read everything without zooming?

If you need to zoom and scroll horizontally, your formatting is too complex. Simplify it.


The Bottom Line: 5 Minutes Could Change Everything

Most people spend hours perfecting their resume design, then wonder why they're not getting callbacks. The problem isn't their experience—it's that ATS can't read their resume.

The good news: you can test this quickly and fix the highest-risk issues in one focused editing pass.

  1. Run the plain text test (90 seconds)
  2. Upload to Indeed and check parsing (2 minutes)
  3. Run through RankMyCv's ATS checker
  4. Fix the issues it identifies (5-10 minutes)

Total time: often well under an hour for a solid first pass, especially if the main problems are layout-related.

Test your resume now and review whether your contact info, sections, and work history parse the way you expect.

Editorial note

How to read the performance examples in this article

  • The callback-rate example is an illustrative case study showing the impact of fixing parsing issues on one resume workflow, not a guaranteed outcome for every candidate.
  • Different ATS platforms parse files differently, so this guide focuses on durable formatting rules that tend to reduce failures across systems.
  • Use these methods as a validation process, then confirm your own result with a live ATS-style check.

Sources

References reviewed for this article

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