robots.txt & llms.txt across the Tranco top 1M
Data as of 2026-09-07 · robots.txt via Common Crawl CC-MAIN-2026-34 + our polite crawl · llms.txt via our polite crawl · Tranco list XN67N (2026-09-03T22:00:02.533886) · 1,000,000 panel domains 1,212,578 robots.txt fetches · 740,113 parsed · 56,498 llms.txt probes

Two public profiles · no score or winner

fastmoss.com and seasaltcornwall.com

fastmoss.com #62,846 seasaltcornwall.com #62,844

Measured takeaway

Both sites have mixed rules for model-training crawlers.

Measured in Botfy's 2026-09-07 publication.

At a glance

A difference appears only when both sites have comparable evidence. Unavailable or unresolved observations remain incomplete.

Evidencefastmoss.com seasaltcornwall.com
robots.txt Served and parsed Served and parsed
Google crawl posture Open Open
Unnamed crawler fallback Partly Restricted they inherit the wildcard (*) group's rules Partly Restricted they inherit the wildcard (*) group's rules
Base /llms.txt Not probed Not found when probed

Treatment by purpose

Only resolved blocked, allowed, or mixed states count as a policy agreement or difference. Unnamed agents still inherit each site's wildcard rules.

Declared purposefastmoss.com seasaltcornwall.com
Model training Mixed Mixed
AI search Mixed Not explicitly addressed
Live assistant fetch Mixed Mixed
Opt-out directives Mixed Not explicitly addressed
Ambiguous / undocumented Not explicitly addressed Not explicitly addressed

Named agents

Measured differences appear first. “Not explicitly addressed” is not the same as allowed; the site's wildcard fallback governs that crawler.

Agentfastmoss.com seasaltcornwall.com
GPTBot OpenAI Partly blocked Not explicitly addressed
ClaudeBot Anthropic Partly blocked Not explicitly addressed
Meta-ExternalAgent Meta Not explicitly addressed Partly blocked
FacebookBot Meta Not explicitly addressed Partly blocked
OAI-SearchBot OpenAI Partly blocked Not explicitly addressed
Claude-SearchBot Anthropic Partly blocked Not explicitly addressed
PerplexityBot Perplexity Partly blocked Not explicitly addressed
ChatGPT-User OpenAI Partly blocked Not explicitly addressed
Claude-User Anthropic Partly blocked Not explicitly addressed
Perplexity-User Perplexity Partly blocked Not explicitly addressed
Meta-ExternalFetcher Meta Not explicitly addressed Partly blocked
Google-Extended Google Partly blocked Not explicitly addressed

How each site compares with its own rank peers

The sites may belong to different rank bands. Each percentage keeps its own population and denominator; Botfy does not subtract rates from unlike cohorts.

Traitfastmoss.com seasaltcornwall.com
Wildcard group Yes 92.1% Ranks 10,001–100,000 · n=54,147 Yes 92.1% Ranks 10,001–100,000 · n=54,147
Effectively open file No 22.6% Ranks 10,001–100,000 · n=54,147 No 22.6% Ranks 10,001–100,000 · n=54,147
Sitemap declared Yes 61.7% Ranks 10,001–100,000 · n=54,147 Yes 61.7% Ranks 10,001–100,000 · n=54,147
robots.txt served Yes 59.7% Ranks 10,001–100,000 · n=91,507 Yes 59.7% Ranks 10,001–100,000 · n=91,507
robots.txt returned 404 No 7.9% Ranks 10,001–100,000 · n=91,507 No 7.9% Ranks 10,001–100,000 · n=91,507
Over the RFC parse limit No 0.2% Ranks 10,001–100,000 · n=54,147 No 0.2% Ranks 10,001–100,000 · n=54,147
Blanket disallow No 4.0% Ranks 10,001–100,000 · n=54,147 No 4.0% Ranks 10,001–100,000 · n=54,147
How this comparison is measured

Both sites use Botfy's latest published observations. A missing fetch, unresolved agent verdict, and measured absence are different states. Peer percentages use each site's exclusive Tranco rank band and print their own denominator. Populations, sources, and limits →

Keep comparing

Each suggestion replaces one side using an editorial collection or current rank proximity. Neither means the sites have similar policies.