# Resend — Agent Score

> Score: 99/100 (Grade: A) | Docs: https://resend.com/docs | Checked: April 7, 2026

Resend scored 99/100 (A) on Agent Score. 19 of 22 agent-readiness checks passed.

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

## Summary

- Total checks: 22
- Passed: 19
- Warnings: 2
- Failed: 0

## Category Scores

- page-size: 100/100
- observability: 98/100
- url-stability: 100/100
- authentication: 100/100
- content-structure: 100/100
- markdown-availability: 100/100
- content-discoverability: 97/100

## Check Results

### content-discoverability

- [pass] llms.txt found at 2 location(s)
- [warn] llms.txt contains parseable links but doesn't fully follow the proposed structure: https://resend.com/docs/llms.txt: No blockquote summary found
- [pass] llms.txt is 38,843 characters (under 50,000 threshold)
- [pass] All 10 same-origin sampled links resolve (295 total links)
- [pass] 9/10 same-origin sampled links point to markdown content (90%) (16 external links excluded)
- [pass] llms.txt directive found in 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 5K, max 16K)
- [pass] All 10 sampled pages convert under 50K chars (median 5K, 0% boilerplate)
- [pass] Content starts within first 10% on all 10 sampled pages (median 2%)

### content-structure

- [pass] No tabbed content detected across 10 sampled pages
- [pass] No tabbed content found; header quality check not applicable
- [pass] All 46 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 100% of 267 sitemap doc pages; 3 llms.txt links not in sitemap (may indicate stale links or incomplete sitemap)
- [warn] 2 of 10 pages have minor content differences between markdown and HTML
- [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