AI readiness leaderboard · Email marketing
AI readiness of resend.com: 100/100
100/100
We checked resend.com on 2026-10-18 with our free checker: six scored tests plus evidence for each finding. The score reflects the site on that date. The site may have changed after that date.
| Test | Result | Points |
|---|---|---|
| llms.txt | Yes | 15 of 15 |
| JSON-LD schema on the homepage | Yes | 20 of 20 |
| Meta description | Yes | 10 of 10 |
| Text readable without JavaScript | Yes | 20 of 20 |
| Sitemap | Yes | 10 of 10 |
| AI crawlers allowed in robots.txt | 8 of 8 | 25 of 25 |
Compared with Email marketing
resend.com ranks 13 of 21 email marketing sites in this scan (ties share the order by domain name). The median score in this group is 100. 15 of 21 have an llms.txt file.
Findings with evidence
ImproveJSON-LD: 1 block, types Organization, ImageObject, Person, ContactPoint, PostalAddress, WebSite, SoftwareApplication, Offer, WebPage, BreadcrumbList, ListItem
Offer is missing recommended availability.
Fix: Fix the listed properties, then retest at validator.schema.org.
ImproveServer responded in 900 ms
Time to response headers from our checker. Final URL: https://resend.com/
Fix: Slow responses can make crawlers give up. Add page caching or a CDN in front of the homepage.
ImproveHTML size 410 KB, 70 script tags
1 render-blocking script in <head>: /_next/static/immutable/chunks/0c0hxoamwjsbw.js
Fix: Large HTML slows crawlers and tools with size limits. Move inline data and scripts out of the HTML.
18 checks passed or noted
PassGPTBot (OpenAI, training): allowed on /
User-agent: * Allow: / Matching rule: "allow: /" in group "*".
PassOAI-SearchBot (OpenAI, ChatGPT search): allowed on /
User-agent: * Allow: / Matching rule: "allow: /" in group "*".
PassChatGPT-User (OpenAI, live fetch for users): allowed on /
User-agent: * Allow: / Matching rule: "allow: /" in group "*".
PassClaudeBot (Anthropic, training): allowed on /
User-agent: * Allow: / Matching rule: "allow: /" in group "*".
PassClaude-SearchBot (Anthropic, Claude search): allowed on /
User-agent: * Allow: / Matching rule: "allow: /" in group "*".
PassPerplexityBot (Perplexity, search index): allowed on /
User-agent: * Allow: / Matching rule: "allow: /" in group "*".
PassGoogle-Extended (Google, Gemini training control): allowed on /
User-agent: * Allow: / Matching rule: "allow: /" in group "*".
PassCCBot (Common Crawl, open dataset): allowed on /
User-agent: * Allow: / Matching rule: "allow: /" in group "*".
Passllms.txt found and well formed
First line: "# Resend". 19 ## sections, 58 links, 8330 bytes.
Passllms-full.txt found
GET /llms-full.txt returned 200.
PassTitle, 29 characters
<title>Resend · Email for developers</title>
PassMeta description, 106 characters
content="The best way to reach humans instead of spam folders. Deliver transactional and marketing emails at scale."
PassOpen Graph tags present
og:title: Resend · Email for developers og:description: The best way to reach humans instead of spam folders. Deliver transactional and marketing… og:image: https://resend.com/static/cover.jpg
PassCanonical link set
<link rel="canonical" href="https://resend.com">
PassLanguage declared: en
<html lang="en">
Pass1 H1 heading
<h1>Email for developers</h1>
Pass15,339 characters of text without JavaScript
Text starts: "Resend · Email for developers Open main menu Features Company Enterprise Help Docs AI Pricing Log in Get started Join us at Resend Forward Email for developers…"
PassSitemap found, 12 child sitemaps
robots.txt: Sitemap: https://resend.com/sitemap.xml GET https://resend.com/sitemap.xml returned 200.
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Scoring: llms.txt 15, JSON-LD 20, meta description 10, readable text 20, sitemap 10, AI crawler access 25. Want this page changed or removed? Email [email protected].
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