# Sendblue — Agent Score

> Score: 80/100 (Grade: B) | Docs: https://docs.sendblue.com | Checked: August 25, 2026

Sendblue scored 80/100 (B) on Agent Score. 17 of 23 agent-readiness checks passed.

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

## Summary

- Total checks: 23
- Passed: 17
- Warnings: 2
- Failed: 3

## Category Scores

- page-size: 100/100
- observability: 52/100
- url-stability: 100/100
- authentication: 100/100
- content-structure: 100/100
- markdown-availability: 91/100
- content-discoverability: 61/100

## Check Results

### content-discoverability

- [pass] llms.txt found at https://docs.sendblue.com/llms.txt
- [pass] llms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)
- [pass] llms.txt is 23,937 characters (under 50,000 threshold)
- [pass] All 10 same-origin sampled links resolve (37 total links)
- [warn] Same-origin links point to HTML, but 9 have .md variants available (2 external links excluded)
- [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 10 sampled pages

### markdown-availability

- [pass] 10/10 sampled pages support .md URLs (100%)
- [warn] Content negotiation partially supported: 0 correct type, 10 wrong type, 0 HTML only

### page-size

- [pass] All 10 sampled pages contain server-rendered content
- [pass] All 10 pages under 50K chars (median 5K, max 28K)
- [pass] All 10 sampled pages under 50K chars (median 101K HTML → 8K markdown (92% 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 115 code fences properly closed across 11 pages

### url-stability

- [pass] All 10 sampled pages return proper error codes for bad URLs
- [pass] No redirects detected across 10 sampled pages

### observability

- [fail] llms.txt covers 35/123 sitemap doc pages (28%); 88 missing
- [pass] All 10 pages have equivalent markdown and HTML content (avg 0% missing)
- [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