How Do I Find Out Which Applicant Tracking System (ATS) a Company Uses Before I Apply?
TL;DR: Check the apply-button URL — domains like greenhouse.io, lever.co, ashbyhq.com, or myworkdayjobs.com name the ATS directly. If the URL is a company subdomain, view page source or use a tech-fingerprint tool like Wappalyzer. Knowing the ATS tells you how to format your resume and whether one-click auto-apply will work.
Why it matters
Every major ATS parses resumes differently. Workday and Taleo choke on tables, columns, and text boxes. Greenhouse, Lever, and Ashby are lenient and reward plain keyword matches. Formatting for the wrong system is a silent rejection before a human ever opens your file.
5 ways to identify the ATS, ranked by speed
- Read the apply URL. boards.greenhouse.io, jobs.lever.co, jobs.ashbyhq.com, myworkdayjobs.com, icims.com, and successfactors.com name the platform outright.
- View page source (Ctrl+U / Cmd+Option+U) and search for "greenhouse", "lever", "ashby", "workday", or "icims" in the HTML.
- Scroll to the footer. Many careers pages leave a small "Powered by [ATS]" badge.
- Install Wappalyzer — a free browser extension that fingerprints any site's tech stack, ATS included, in one click.
- Paste the job link into InterviewBoost's auto-apply. It recognizes LinkedIn Easy Apply, Greenhouse, Lever, and Ashby automatically and tells you upfront whether it can one-click apply.
Comparison: common ATS platforms
| ATS | Resume format tolerance | Auto-apply support |
|---|---|---|
| Greenhouse | High — parses PDF and DOCX cleanly | Yes |
| Lever | High | Yes |
| Ashby | High | Yes |
| Workday | Low — avoid tables, columns, text boxes | Limited, varies by employer instance |
| iCIMS | Medium | Limited |
| Taleo | Low — oldest parser, plain text only | Not supported |
Step-by-step
- Copy the job posting URL and check it against the domains above.
- If it's Workday or Taleo, strip your resume to a single column with standard headers: Experience, Education, Skills.
- If it's Greenhouse, Lever, or Ashby, use InterviewBoost's auto-apply to skip re-typing the same fields across dozens of applications.
- Run the final file through a free ATS resume scanner before you submit.
FAQ
Does the ATS decide who gets hired? No. It filters and ranks; a recruiter still reviews the shortlist. Can I use one resume everywhere regardless of ATS? You can, but a layout built for Greenhouse can silently drop content in Workday. Tailor the format, not just the words. Is there a universal ATS-safe format? Single column, standard section headers, no images or text boxes, and a text-based PDF or DOCX file — that clears almost every ATS in use today.
By Pinal Dave Last updated: 2026-08-03