SITECUBE /llms.txt Validator · AI Crawler Registry · Web-to-Token Observatory

linear.app

A (87/100) Open to Search & Training

Linear – The system for product development

Raw HTML Tokens: ~317,016 tok
Clean Text Tokens: ~313 tok (0.1% signal)
/llms.txt Manifest: 2,903 tok (Spec Compliant)
Edge / TTFB: Cloudflare · 452 ms
AI & /llms.txt Readiness Signal-to-Noise Ratio Token Savings via /llms.txt Network TTFB TLS & HTTP Security DNS & Edge Stack
76/100 0.1% (313 / 317,016 tok) -99.1% fewer tokens 452 ms (74/100) 93/100 Cloudflare (Next.js)

Web-to-Token Efficiency & Agent Ingestion Cost

~4 bytes/token UTF-8 heuristic
Ingestion Source Payload Est. Tokens Cost / 1k Reads (Flash $0.35) Cost / 1k Reads (Pro $1.25)
Raw HTML DOM (GET /) 1,238.3 KB 317,016 $110.9556 $396.2700
Stripped Readable Text 1.2 KB 313 $0.1096 $0.3913
/llms.txt Manifest 11.3 KB 2,903 $1.0161 $3.6288
HTML Signal-to-Noise Ratio: 0.1% readable text vs. 99.9% markup/script overhead.

/llms.txt Spec Linter & Agent Endpoint Probe

Status: Spec Compliant
GET /llms.txt HTTP 200 · 11,610 bytes (~2,903 tokens · 247 lines)
Spec Check: # H1 Title Pass ("Linear")
Spec Check: > Summary Pass ("Linear is a purpose-built tool for planning and building products. Meet the system for modern software development. Streamline issues, projects, and product roadmaps.")
## H2 Sections & Links 3 sections · 178 canonical markdown links
GET /llms-full.txt Not deployed
GET /.well-known/mcp.json Not advertised
JSON-LD Schema Entities None detected in initial HTML
Live Payload from https://linear.app/llms.txt
# Linear

> Linear is a purpose-built tool for planning and building products. Meet the system for modern software development. Streamline issues, projects, and product roadmaps.

> For agents: connect to the Linear MCP server at https://mcp.linear.app/mcp to read and change issues, projects, and documents. Setup guide: https://linear.app/docs/mcp.md. Index of all docs: https://linear.app/llms.txt.

Each page on linear.app is also available as Markdown. Add `.md` to the URL (use `/index.md` for 

AI Crawler /robots.txt Access Matrix

Open to Search & Training
User-Agent Token Purpose / Operator Effective Directive
OAI-SearchBot ChatGPT Search Citations Allow: /
PerplexityBot Perplexity Answer Citations Allow: /
ChatGPT-User Live User Agent Browsing Allow: /
Claude-SearchBot Anthropic Search Grounding Allow: /
GPTBot Foundation Model Training Allow: /
ClaudeBot Foundation Model Training Allow: /
Google-Extended Gemini Training Control Allow: /
Applebot-Extended Apple Intelligence Training Allow: /
Meta-ExternalAgent Llama Training & Indexing Allow: /
CCBot Open Dataset Training Corpus Allow: /

HTTP Response & Handshake Timing

GET https://linear.app/
DNS Lookup 4 ms HTML Document 1238.3 KB
TCP Connect 6 ms Script Tags 8
TLS Handshake 0 ms Stylesheets 47
Time to First Byte (TTFB) 452 ms Images (with alt) 4 / 8
Total Transfer 476 ms HTTP/3 (Alt-Svc) Yes (h3)

Edge Network & Application Stack

Header & DOM Signatures
Edge / Reverse Proxy Cloudflare
Application Framework Next.js
Server Header cloudflare
Mail Provider (MX) Google Workspace
Telemetry Signatures Server-Side / None
TXT Verifications Microsoft Entra, Stripe Verified, OpenAI Domain Verified, Google Search Console, Anthropic Verified, Slack

TLS Certificate & HTTP Security Policy

Port 443 X.509
Certificate Issuer Let's Encrypt (89 days remaining)
Strict-Transport-Security Present
Content-Security-Policy Present
X-Content-Type-Options Present
X-Frame-Options Present
Referrer-Policy Present
Permissions-Policy Not set
SPF / DMARC Policy SPF: Yes · DMARC: Yes

Authoritative DNS & Document Head

A / AAAA / NS / Canonical
A (IPv4) 172.64.147.211, 104.18.40.45
AAAA (IPv6) 2606:4700:9642:4a65:3cca::1168:a87b
NS (Nameservers) tim.ns.cloudflare.com, zara.ns.cloudflare.com
HTML Title (43c) Linear – The system for product development
/sitemap.xml Valid XML Sitemap

Hosted /llms.txt Mirror & Status Badge

Platform Setup Guide →
1-Line <head> Tag (for Shopify, Webflow, Framer, Wix, Squarespace & WordPress):
Sitecube status for linear.app
GitHub / Docs Markdown Badge:
HTML Badge:

Technical Synthesis & Agentic Ingestion Analysis: linear.app

Automated Engineering Assessment

1. HTML-to-Token Efficiency & LLM Context Window Cost

An unauthenticated HTTPS GET request to https://linear.app/ returns an initial HTML payload of 1,238.3 KB, corresponding to approximately 317,016 UTF-8 tokens when ingested raw by an AI coding agent, retrieval pipeline, or headless browser. After stripping inline <script>, <style>, <svg>, and DOM markup tags, the human-readable text footprint measures 313 tokens (1.2 KB)—yielding an HTML Signal-to-Noise Ratio of 0.1%. Because linear.app publishes a valid /llms.txt manifest (measuring 2,903 tokens across 247 lines), AI retrieval agents that read /llms.txt instead of scraping the raw DOM reduce token consumption by 99.1%—cutting 1,000-read inference input costs from $396.2700 to $3.6288 at frontier model rates ($1.25/1M tokens), or $1.0161 on Gemini 4 Hydrogen ($0.35/1M).

2. Indexed Structure Inside linear.app/llms.txt

Sitecube’s specification linter verified 3 H2 section headings and 178 Markdown links inside https://linear.app/llms.txt under the primary heading "Linear". Documented sections include: Website</code>, <code>Documentation</code>, <code>Developers. Key canonical endpoints referenced in the manifest include / (https://linear.app/index.md), /about (https://linear.app/about.md), /agents (https://linear.app/agents.md), /ai (https://linear.app/ai.md), /careers (https://linear.app/careers.md).

3. Edge Delivery, TLS Handshake & Security Header Assessment

Traffic for linear.app resolves to 172.64.147.211 via Cloudflare running Next.js, achieving a measured Time to First Byte (TTFB) of 452 ms (DNS lookup: 4 ms, TCP connect: 6 ms, TLS handshake: 0 ms). The port 443 TLS certificate is issued by Let's Encrypt with 89 days remaining before expiration (valid through 2027-02-11). Outbound email authentication via SPF is present and DMARC (_dmarc.linear.app) is enforced.

Comparable Hosts in Web-to-Token & /llms.txt Registry

Full Index (26 hosts) →
Host Rating /llms.txt HTML Tokens Text Tokens Signal % Crawler Posture TTFB
sitecube.com A+ 98 1,600 tok 11,832 1,132 9.6% Open to Search & Training 99 ms
cloudflare.com A+ 96 4,294 tok 333,631 471 0.1% Open to Search & Training 291 ms
trendyflash.com A+ 95 2,987 tok 12,123 1,660 13.7% Open to Search & Training 112 ms
multifactor.com A+ 94 656 tok 98,275 673 0.7% Open to Search & Training 97 ms
github.com A+ 92 7,165 tok 131,504 1,159 0.9% Open to Search & Training 35 ms
vercel.com A+ 92 1,385 tok 149,859 889 0.6% Open to Search & Training 53 ms
aiimpacted.org A+ 92 971 tok 17,598 3,568 20.3% Open to Search & Training 55 ms
tierones.io A+ 92 481 tok 3,744 693 18.5% Open to Search & Training 95 ms
cloq.com A 91 1,169 tok 2,109 690 32.7% Open to Search & Training 51 ms
supabase.com A 89 879 tok 337,513 1,905 0.6% Open to Search & Training 48 ms
dosefacts.org A 89 10,936 tok 29,008 7,291 25.1% Open to Search & Training 335 ms
postman.com A 89 5,375 tok 118,892 11,040 9.3% Open to Search & Training 947 ms