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

base-search.net and cpasitesolutions.com

base-search.net #34,539 cpasitesolutions.com #34,540

Measured takeaway

base-search.net blocks AI-search crawlers; cpasitesolutions.com has mixed rules for AI-search crawlers.

base-search.net blocks ChatGPT-User; cpasitesolutions.com partly blocks ChatGPT-User.

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.

Evidencebase-search.net cpasitesolutions.com
robots.txt Served and parsed Served and parsed
Google crawl posture Open Blocked
Unnamed crawler fallback Partly Restricted they inherit the wildcard (*) group's rules Blocked the wildcard (*) group disallows everything, so they are blocked without being named
Base /llms.txt Related file observed at /ai.txt; /llms.txt not established 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 purposebase-search.net cpasitesolutions.com
Model training Blocked Not explicitly addressed
AI search Blocked Mixed
Live assistant fetch Blocked Mixed
Opt-out directives Blocked Mixed
Ambiguous / undocumented Blocked 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.

Agentbase-search.net cpasitesolutions.com
OAI-SearchBot OpenAI Blocked Partly blocked
ChatGPT-User OpenAI Blocked Partly blocked
Amazonbot Amazon Blocked Partly blocked
Google-Extended Google Blocked Partly blocked
GPTBot OpenAI Blocked Not explicitly addressed
ClaudeBot Anthropic Blocked Not explicitly addressed
CCBot Common Crawl Blocked Not explicitly addressed
Bytespider ByteDance Blocked Not explicitly addressed
Meta-ExternalAgent Meta Blocked Not explicitly addressed
FacebookBot Meta Blocked Not explicitly addressed
cohere-ai Cohere Blocked Not explicitly addressed
cohere-training-data-crawler Cohere Blocked Not explicitly addressed
22 additional tracked agents
Agentbase-search.net cpasitesolutions.com
Diffbot BlockedNot explicitly addressed
Timpibot BlockedNot explicitly addressed
omgili BlockedNot explicitly addressed
omgilibot BlockedNot explicitly addressed
img2dataset BlockedNot explicitly addressed
AI2Bot BlockedNot explicitly addressed
Ai2Bot-Dolma BlockedNot explicitly addressed
Kangaroo Bot BlockedNot explicitly addressed
Webzio-Extended BlockedNot explicitly addressed
Claude-SearchBot Not explicitly addressedPartly blocked
Applebot Not explicitly addressedPartly blocked
PerplexityBot BlockedNot explicitly addressed
YouBot BlockedNot explicitly addressed
PetalBot BlockedNot explicitly addressed
Claude-Web BlockedNot explicitly addressed
Perplexity-User Not explicitly addressedPartly blocked
Meta-ExternalFetcher BlockedNot explicitly addressed
DuckAssistBot BlockedNot explicitly addressed
Applebot-Extended BlockedNot explicitly addressed
anthropic-ai BlockedNot explicitly addressed
GoogleOther BlockedNot explicitly addressed
Scrapy BlockedNot 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.

Traitbase-search.net cpasitesolutions.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 No 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 Yes 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.