# Amazon ECS — Agent Score > Score: 69/100 (Grade: D) | Docs: https://docs.aws.amazon.com/ecs/ | Checked: April 11, 2026 Amazon ECS scored 69/100 (D) on Agent Score. 12 of 22 agent-readiness checks passed. [View full report](https://buildwithfern.com/agent-score/company/amazon-ecs) [All companies](https://buildwithfern.com/agent-score/llms.txt) ## Summary - Total checks: 22 - Passed: 12 - Warnings: 2 - Failed: 4 ## Category Scores - page-size: 92/100 - observability: 100/100 - url-stability: 100/100 - authentication: 100/100 - content-structure: 100/100 - markdown-availability: 0/100 - content-discoverability: 49/100 ## Check Results ### content-discoverability - [pass] llms.txt found at 1 location(s) - [pass] llms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections) - [fail] llms.txt is 288,774 characters (exceeds 100,000 threshold; will be truncated by most agents) - [pass] All 10 same-origin sampled links resolve (1813 total links) - [warn] Same-origin links point to HTML, but 1 have .md variants available - [fail] No llms.txt directive found in any of 10 sampled pages ### markdown-availability - [fail] No sampled pages support .md URLs (0/10 tested) - [fail] Server ignores Accept: text/markdown header (0/10 sampled pages return markdown) ### page-size - [pass] All 10 sampled pages contain server-rendered content - [skip] Site does not serve markdown; skipping markdown size check - [pass] All 10 sampled pages convert under 50K chars (median 5K, 69% boilerplate) - [warn] 8 of 10 sampled pages have content starting at 10–50% (worst 47%) ### content-structure - [pass] No tabbed content detected across 10 sampled pages - [pass] No tabbed content found; header quality check not applicable - [pass] All 0 code fences properly closed across 1 pages ### url-stability - [pass] All 10 sampled pages return proper error codes for bad URLs - [pass] No redirects detected across 10 sampled pages ### observability - [skip] Sitemap has 50000 URLs but none are under the docs path prefix (/ecs) - [skip] No pages with markdown versions available to compare - [pass] All 11 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