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

nos.nl and space.com

nos.nl #3,833 space.com #3,835

Measured takeaway

Both sites block 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.

Evidencenos.nl space.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 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 purposenos.nl space.com
Model training Blocked Blocked
AI search Blocked Blocked
Live assistant fetch Blocked Blocked
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.

Agentnos.nl space.com
Bytespider ByteDance Blocked Blocked
Meta-ExternalAgent Meta Blocked Blocked
Diffbot Diffbot Blocked Blocked
Omgili Webz.io Blocked Blocked
AI2Bot Allen Institute Blocked Blocked
YouBot You.com Blocked Blocked
GPTBot OpenAI Blocked Not explicitly addressed
ClaudeBot Anthropic Blocked Not explicitly addressed
CCBot Common Crawl Blocked Not explicitly addressed
FacebookBot Meta Blocked Not explicitly addressed
cohere-ai Cohere Blocked Not explicitly addressed
Timpibot Timpi Blocked Not explicitly addressed
12 additional tracked agents
Agentnos.nl space.com
Omgilibot BlockedNot explicitly addressed
img2dataset Not explicitly addressedBlocked
Kangaroo Bot BlockedNot explicitly addressed
Webzio-Extended BlockedNot explicitly addressed
PerplexityBot BlockedNot explicitly addressed
ChatGPT-User BlockedNot explicitly addressed
amazonbot Not explicitly addressedBlocked
Meta-ExternalFetcher BlockedNot explicitly addressed
DuckAssistBot 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.

Traitnos.nl space.com
Wildcard group Yes 94.1% Ranks 1,001–10,000 · n=5,437 Yes 94.1% Ranks 1,001–10,000 · n=5,437
Effectively open file No 16.4% Ranks 1,001–10,000 · n=5,437 No 16.4% Ranks 1,001–10,000 · n=5,437
Sitemap declared Yes 65.6% Ranks 1,001–10,000 · n=5,437 Yes 65.6% Ranks 1,001–10,000 · n=5,437
robots.txt served Yes 60.7% Ranks 1,001–10,000 · n=9,037 Yes 60.7% Ranks 1,001–10,000 · n=9,037
robots.txt returned 404 No 5.4% Ranks 1,001–10,000 · n=9,037 No 5.4% Ranks 1,001–10,000 · n=9,037
Over the RFC parse limit No 0.2% Ranks 1,001–10,000 · n=5,437 No 0.2% Ranks 1,001–10,000 · n=5,437
Blanket disallow No 3.7% Ranks 1,001–10,000 · n=5,437 No 3.7% Ranks 1,001–10,000 · n=5,437
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.