Home / AI Readiness Audits / Fly.io (fly.io)

Fly.io (fly.io): AI Search Readiness

Sector: Cloud & Edge · Category: Global App & GPU Compute · Cohort Rank: #12 of 40 · Score: 76/100 (Grade B+)

Fly.io (fly.io) scores 76/100 (Grade B+), ranking #12 of 40 unblocked developer platforms audited on 2026-11-14 UTC (+12.9 pts vs the 63.1/100 cohort mean). From Cloudflare’s edge, https://fly.io/ responded in 175ms TTFB with 96 KB HTML across 16 <script> tags, exposes 8 Schema.org JSON-LD types (Organization, PostalAddress, ContactPoint, WebSite, SoftwareApplication), and permits all 29/29 tracked AI crawlers (0 via explicit User-agent rules, 29 via User-agent: *). At the discovery layer, fly.io currently serves /llms.txt (HTTP 200), /pricing.md (HTTP 200), and returns non-200 on /llms-full.txt (HTTP 404), /.well-known/mcp.json (HTTP 404), /.well-known/openapi.json (HTTP 404).

Scope & limits: Technical readiness assessment from Cloudflare edge probes on 2026-11-14 UTC; independent audit not affiliated with Fly.io. Technical readiness does not guarantee AI citations or sales.

1. Technical Signal Telemetry & Discovery Status

Signal / Endpoint	Observed Result	Standard Reference
Root Edge Response	175ms TTFB · 96 KB HTML · 16 `<script>` tags	Cloudflare Edge Node (NRT)
`GET /robots.txt`	HTTP 200 · 29/29 AI bots allowed	RFC 9309 crawler access policy
`GET /sitemap.xml`	HTTP 200 · Declared: https://fly.io/sitemap.xml	Canonical URL discovery index
`GET /llms.txt`	HTTP 200	Markdown index for ChatGPT Search, Perplexity & Claude
`GET /llms-full.txt`	HTTP 404	Single-file plain-text RAG documentation corpus
`GET /pricing.md`	HTTP 200	Deterministic tier & fee schedule
`GET /.well-known/ai.txt`	HTTP 404	Machine discovery pointer manifest
`GET /ai/summary.json`	HTTP 404	Structured JSON entity & capability profile
`GET /.well-known/mcp.json`	HTTP 404	Model Context Protocol server discovery
`GET /.well-known/agent-card.json`	HTTP 404	Agent-to-Agent (A2A v0.2.5) capability card
`GET /.well-known/openapi.json`	HTTP 404	OpenAPI 3.1 function-calling contract
`Schema.org JSON-LD`	8 detected · `Organization, PostalAddress, ContactPoint, WebSite, SoftwareApplication, Service, OfferCatalog, Offer`	Entity disambiguation & structured offers

2. 29-Crawler /robots.txt Access Breakdown

Policy Bucket	Count	Measured User-Agents
Explicitly Allowed	0/29	`None explicitly named (uses wildcard)`
*Allowed via Wildcard (``)**	29/29	`GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-SearchBot, Claude-User, anthropic-ai, claude-web, PerplexityBot, Perplexity-User, Googlebot, Google-Extended, Google-CloudVertexBot, Bingbot, Applebot-Extended, Applebot, DuckAssistBot, cohere-ai, Bytespider, meta-externalagent, Meta-ExternalFetcher, facebookexternalhit, Amazonbot, AI2Bot, AI2Bot-Dolma, xAI-Bot, PetalBot, YouBot, CCBot`
Disallowed (`Disallow: /`)	0/29	`None — 0 of 29 AI crawlers blocked`

3. Missing-Artifact Diffs & Remediation

/llms-full.txt (currently HTTP 404): Publish consolidated plain-text product & architecture corpus so RAG pipelines bypass 96 KB HTML / 16 script tags.
/.well-known/ai.txt (currently HTTP 404): Publish machine discovery pointer indexing /llms.txt, /ai/summary.json, and agent tool manifests.
/.well-known/mcp.json (currently HTTP 404): Expose Model Context Protocol discovery card so Claude Code, Cursor, and MCP registries discover official tools.
/.well-known/agent-card.json (currently HTTP 404): Add A2A v0.2.5 Agent Card declaring capability skills, authentication mode, and rate limits.
/.well-known/openapi.json (currently HTTP 404): Serve OpenAPI 3.1 JSON contract for deterministic function-calling and WebMCP execution.
/ai/summary.json (currently HTTP 404): Serve structured JSON entity profile, product category, and canonical support endpoints.
/robots.txt (wildcard-only AI policy): Declare explicit Allow: / blocks for all 29 AI search and agent user-agents to prevent CDN/WAF ambiguity.

Inspect starter /llms.txt template for fly.io

# Fly.io

> Deploy apps, agents, and databases on hardware-isolated VMs. Pay only for the seconds they run. Sign up free.

## Core Machine Discovery (https://fly.io)
- [Full AI Knowledge Corpus](https://fly.io/llms-full.txt): Single-file technical architecture & product reference
- [Deterministic Pricing](https://fly.io/pricing.md): Verified tier & enterprise fee schedule
- [Direct Answer Blocks](https://fly.io/answers.md): 40-60 word citable BOFU answers
- [Entity Summary JSON](https://fly.io/ai/summary.json): Structured JSON profile & WebMCP tools (verified 2026-11-14)
- [MCP Discovery Manifest](https://fly.io/.well-known/mcp.json): Agentic discovery endpoints
- [A2A Agent Card](https://fly.io/.well-known/agent-card.json): Agent-to-Agent v0.2.5 capability card
- [OpenAPI 3.1 Tool Spec](https://fly.io/.well-known/openapi.json): Deterministic agent function-calling contract
- [AI Knowledge RSS Feed](https://fly.io/feed.xml): Machine-readable update feed

One-time $49 · 26 files · Base USDC or Monero · no signup

Download free 3-file starter for fly.io (.txt) · EdgeScreen x402 ($0.002)

23 remaining production files

/.well-known/mcp.json, agent-card.json, openapi.json, llms-full.txt, pricing.md, answers.md, ai/*.json
Schema.org JSON-LD bundle, Cloudflare Worker edge headers, comparisons, GitHub Action CI verifier.

4. Embeddable Live Score Badge (Free README / Docs Widget)

Embed Fly.io’s verified AI Search Readiness badge in GitHub READMEs, engineering docs, or status pages:

View Markdown & HTML badge code

[![AI Search Readiness](https://asostudio.dev/badge/fly-io.svg)](https://asostudio.dev/audits/fly-io/)

<a href="https://asostudio.dev/audits/fly-io/"><img src="https://asostudio.dev/badge/fly-io.svg" alt="Fly.io AI Search Readiness: 76/100 (B+)" width="196" height="22"></a>

5. 1-Click Live Re-Scan & Custom Domain Check

Re-run our 47-check Cloudflare edge probe against fly.io right now, or test your own domain:

6. Self-Serve 26-File ASO Pack ($49)

Generate a tailored 26-file /llms-full.txt, /pricing.md, 29-crawler robots.txt, Schema.org @graph, and 14-route Edge Router .zip for fly.io or any domain you operate. Instant browser download via USDC on Base (Chain 8453), or Monero (XMR — verified within 24h) via non-custodial Trocador AnonPay. Inspect free sample .zip · Terms · EdgeScreen x402 ($0.002 USDC).

7. Related Audits & Head-to-Head Comparisons

Fly.io vs Render (76/100 vs 87/100)
Fly.io vs Railway (76/100 vs 30/100)
Cloudflare vs Fly.io (89/100 vs 76/100)
Fly.io vs Netlify (76/100 vs 89/100)

Cloudflare (cloudflare.com) — 89/100 (Grade A) · Edge Cloud & Security
Render (render.com) — 87/100 (Grade A-) · Cloud Application Hosting
Vercel (vercel.com) — 73/100 (Grade B+) · Frontend & AI Cloud
Railway (railway.app) — 30/100 (Grade F) · Instant Cloud Infrastructure

Browse all 40 unblocked platform grade-cards → · Browse all 40 head-to-head comparisons →