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

a2z.com and ui.com

a2z.com #107 ui.com #106

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.

Evidencea2z.com ui.com
robots.txt Fetch failed: dns_error Served and parsed
Google crawl posture Blocked Open
Unnamed crawler fallback Unavailable Allowed the wildcard (*) group is effectively open
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 purposea2z.com ui.com
Model training Observation unavailable Allowed
AI search Observation unavailable Allowed
Live assistant fetch Observation unavailable Allowed
Opt-out directives Observation unavailable Allowed
Ambiguous / undocumented Observation unavailable 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.

Agenta2z.com ui.com
GPTBot OpenAI Observation unavailable Allowed
ClaudeBot Anthropic Observation unavailable Allowed
CCBot Common Crawl Observation unavailable Allowed
OAI-SearchBot OpenAI Observation unavailable Allowed
PerplexityBot Perplexity Observation unavailable Allowed
ChatGPT-User OpenAI Observation unavailable Allowed
Claude-Web Anthropic Observation unavailable Allowed
Google-Extended Google Observation unavailable Allowed
Applebot-Extended Apple Observation unavailable Allowed

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.

Traita2z.com ui.com
Wildcard group Parsing unavailable 95.1% Ranks 1–1,000 · n=529 Yes 95.1% Ranks 1–1,000 · n=529
Effectively open file Parsing unavailable 11.3% Ranks 1–1,000 · n=529 Yes 11.3% Ranks 1–1,000 · n=529
Sitemap declared Parsing unavailable 66.0% Ranks 1–1,000 · n=529 Yes 66.0% Ranks 1–1,000 · n=529
robots.txt served Fetch failed: dns_error 53.3% Ranks 1–1,000 · n=1,000 Yes 53.3% Ranks 1–1,000 · n=1,000
robots.txt returned 404 Fetch failed: dns_error 4.6% Ranks 1–1,000 · n=1,000 No 4.6% Ranks 1–1,000 · n=1,000
Over the RFC parse limit Parsing unavailable 0.8% Ranks 1–1,000 · n=529 No 0.8% Ranks 1–1,000 · n=529
Blanket disallow Parsing unavailable 8.9% Ranks 1–1,000 · n=529 No 8.9% Ranks 1–1,000 · n=529
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.