# Fern — Agent Score

> Score: 98/100 (Grade: A) | Docs: https://buildwithfern.com/learn | Checked: April 28, 2026

Fern scored 98/100 (A) on Agent Score. 21 of 23 agent-readiness checks passed.

[View full report](https://buildwithfern.com/agent-score/company/fern)
[All companies](https://buildwithfern.com/agent-score/llms.txt)

## Summary

- Total checks: 23
- Passed: 21
- Warnings: 0
- Failed: 1

## Category Scores

- page-size: 100/100
- observability: 73/100
- url-stability: 100/100
- authentication: 100/100
- content-structure: 100/100
- markdown-availability: 100/100
- content-discoverability: 100/100

## Check Results

### content-discoverability

- [pass] llms.txt found at 2 locations; using https://buildwithfern.com/learn/llms.txt as canonical
- [pass] llms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)
- [pass] llms.txt is 1,343 characters (under 50,000 threshold)
- [pass] All 6 same-origin links resolve (6 total links)
- [pass] 6/6 same-origin links point to markdown content (100%)
- [pass] llms.txt directive found in HTML of all 10 sampled pages, near the top of content
- [pass] llms.txt directive found in markdown of all 10 sampled pages, near the top of content

### markdown-availability

- [pass] 10/10 sampled pages support .md URLs (100%)
- [pass] 10/10 sampled pages support content negotiation (100%)

### page-size

- [pass] All 10 sampled pages contain server-rendered content
- [pass] All 10 pages under 50K chars (median 7K, max 11K)
- [pass] All 10 sampled pages under 50K chars (median 797K HTML → 13K markdown (98% boilerplate))
- [pass] Content starts within first 10% on all 10 sampled pages (median 0%)

### content-structure

- [pass] No tabbed content detected across 10 sampled pages
- [pass] No tabbed content found; header quality check not applicable
- [pass] All 37 code fences properly closed across 12 pages

### url-stability

- [pass] All 9 sampled pages return proper error codes for bad URLs; 1 failed to fetch
- [pass] No redirects detected across 10 sampled pages

### observability

- [pass] llms.txt covers 96% of 361 sitemap doc pages
- [fail] 6 of 10 pages have substantive content differences between markdown and HTML (avg 19% missing)
- [pass] All 12 endpoints have appropriate cache headers

### authentication

- [pass] All 10 sampled pages are publicly accessible
- [skip] All docs pages are publicly accessible; no alternative access paths needed