# OpenTelemetry Ecosystem Explorer — Agent Score

> Score: 87/100 (Grade: B) | Docs: https://explorer.opentelemetry.io/ | Checked: May 24, 2026

OpenTelemetry Ecosystem Explorer scored 87/100 (B) on Agent Score. 15 of 23 agent-readiness checks passed.

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

## Summary

- Total checks: 23
- Passed: 15
- Warnings: 2
- Failed: 2

## Category Scores

- page-size: 90/100
- observability: 100/100
- url-stability: 100/100
- authentication: 100/100
- content-structure: 100/100
- markdown-availability: 64/100
- content-discoverability: 78/100

## Check Results

### content-discoverability

- [pass] llms.txt found at https://explorer.opentelemetry.io/llms.txt
- [pass] llms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)
- [pass] llms.txt is 1,628 characters (under 50,000 threshold)
- [skip] No HTTP(S) links found in llms.txt
- [skip] No HTTP(S) links found in llms.txt
- [fail] No llms.txt directive found in HTML of any of 6 pages
- [pass] llms.txt directive found in markdown of all 4 pages, near the top of content; 2 had no markdown version

### markdown-availability

- [pass] 4/4 pages support .md URLs (100%)
- [fail] Server ignores Accept: text/markdown header (0/4 pages return markdown); 4 returned error pages

### page-size

- [pass] All 6 pages contain server-rendered content
- [warn] 2 of 4 pages between 50K–100K chars (max 72K)
- [warn] 2 of 6 pages convert to 50K–100K chars (max 0 HTML → 72K markdown (0% boilerplate))
- [pass] Content starts within first 10% on all 6 pages (median 0%)

### content-structure

- [pass] No tabbed content detected across 6 pages
- [pass] No tabbed content found; header quality check not applicable
- [pass] All 0 code fences properly closed across 5 pages

### url-stability

- [pass] All 6 pages return proper error codes for bad URLs
- [pass] No redirects detected across 6 pages

### observability

- [skip] No sitemap found; cannot assess llms.txt coverage without a sitemap as ground truth
- [pass] All 4 pages have equivalent markdown and HTML content (avg 0% missing)
- [pass] All 7 endpoints have appropriate cache headers

### authentication

- [pass] All 6 pages are publicly accessible
- [skip] All docs pages are publicly accessible; no alternative access paths needed