# MongoDB — Agent Score

> Score: 73/100 (Grade: C) | Docs: https://www.mongodb.com/docs | Checked: May 25, 2026

MongoDB scored 73/100 (C) on Agent Score. 12 of 23 agent-readiness checks passed.

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

## Summary

- Total checks: 23
- Passed: 12
- Warnings: 3
- Failed: 6

## Category Scores

- page-size: 94/100
- observability: 100/100
- url-stability: 100/100
- authentication: 100/100
- content-structure: 100/100
- markdown-availability: 57/100
- content-discoverability: 36/100

## Check Results

### content-discoverability

- [pass] llms.txt found at 2 locations; using https://www.mongodb.com/docs/llms.txt as canonical
- [pass] llms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)
- [fail] llms.txt is 4,561,591 characters (exceeds 100,000 threshold; will be truncated by most agents)
- [pass] All 10 same-origin sampled links resolve (21324 total links)
- [warn] Same-origin links point to HTML, but 10 have .md variants available
- [fail] No llms.txt directive found in HTML of any of 10 sampled pages
- [fail] No llms.txt directive found in markdown of any of 9 sampled pages; 1 had no markdown version

### markdown-availability

- [pass] 9/10 sampled pages support .md URLs (90%)
- [fail] Server ignores Accept: text/markdown header (0/10 sampled pages return markdown)

### page-size

- [warn] 1 of 10 sampled pages have server-rendered page structure but little substantive content; agents will see headings and navigation but not the page's actual documentation
- [warn] 1 of 9 pages between 50K–100K chars (max 70K)
- [fail] 1 of 10 sampled pages convert to over 100K chars (max 1126K HTML → 106K markdown (94% boilerplate))
- [pass] Content starts within first 10% on all 10 sampled pages (median 1%)

### content-structure

- [pass] No tabbed content detected across 10 sampled pages
- [pass] No tabbed content found; header quality check not applicable
- [pass] All 19 code fences properly closed across 11 pages

### url-stability

- [pass] All 10 sampled pages return proper error codes for bad URLs
- [pass] All 1 redirect(s) across 10 sampled pages are same-host HTTP redirects

### observability

- [skip] Sitemap has 4879 URLs but none are under the docs path prefix (/docs)
- [fail] 1 of 9 pages have substantive content differences between markdown and HTML (avg 7% 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