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

derstandard.de and psc.edu

derstandard.de #27,711 psc.edu #27,712

Measured takeaway

Botfy does not have comparable evidence for a strong policy takeaway; the available states are shown below.

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.

Evidencederstandard.de psc.edu
robots.txt Served and parsed Served and parsed
Google crawl posture Open Open
Unnamed crawler fallback Unrestricted no wildcard (*) group exists, so no rule applies to them at all Partly Restricted they inherit the wildcard (*) group's rules
Base /llms.txt Not found when 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 purposederstandard.de psc.edu
Model training Blocked Not explicitly addressed
AI search Blocked Not explicitly addressed
Live assistant fetch Blocked Not explicitly addressed
Opt-out directives Blocked Not explicitly addressed
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.

Agentderstandard.de psc.edu
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-training-data-crawler Cohere Blocked Not explicitly addressed
DeepSeekBot DeepSeek Blocked Not explicitly addressed
omgili Webz.io Blocked Not explicitly addressed
omgilibot Webz.io Blocked Not explicitly addressed
Ai2Bot-Dolma Allen Institute Blocked Not explicitly addressed
Kangaroo Bot Kangaroo LLM Blocked Not explicitly addressed
7 additional tracked agents
Agentderstandard.de psc.edu
PerplexityBot BlockedNot explicitly addressed
ChatGPT-User BlockedNot explicitly addressed
Claude-Web BlockedNot explicitly addressed
Perplexity-User BlockedNot explicitly addressed
Google-Extended BlockedNot explicitly addressed
Applebot-Extended BlockedNot explicitly addressed
anthropic-ai 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.

Traitderstandard.de psc.edu
Wildcard group No 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 No 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.