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#
# -------------------------------------
#
# A file for robots and those who are
# curious about the world around them :)
#
# -------------------------------------

# Open to everyone, on purpose: search crawlers and AI systems alike. The
# writing here exists to be found, read and quoted, and a rule that kept this
# site out of the answers people now ask for would be protecting it from being
# read. Decided rather than inherited.
#
# One group, and it covers every crawler. There are no per-agent rules anywhere
# in this file, so what you have just read is the whole of what applies to you,
# whoever you are.
#
# The Content-Signal line states the same decision in the Content Signals
# vocabulary (contentsignals.org), for the tools that read policy from a field
# rather than from prose: collection for search, for answering a question at
# inference time, and for training are all consented to. All three say yes on
# purpose -- they restate the decision above, not a default a generator
# assumed. A crawler that predates the convention ignores the line.
User-agent: *
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

Sitemap: https://brand.engineer.company/sitemap.xml

# Everything else a machine might want, announced where machines already look.
# These are comments because robots.txt has no field for them -- a crawler
# ignores the lines, and a human or an agent reading the file finds the trail.
#
# Content map (llmstxt.org):  https://brand.engineer.company/llms.txt
# Notes for agents:           https://brand.engineer.company/agents.txt
# AI usage policy:            https://brand.engineer.company/ai.txt
# Ad sellers, of which none:  https://brand.engineer.company/ads.txt
# Who built this:             https://brand.engineer.company/humans.txt
# Security contact (RFC 9116): https://brand.engineer.company/.well-known/security.txt
#
# The same pages, reached three other ways. Written literally rather than
# through absURL, because none of these is derivable from the site's base URL
# -- they are separate front doors onto the same folder of files, and one
# deploy updates all four.
# Gemini capsule:             gemini://engineer.company/
# Gopher hole:                gopher://engineer.company/
# Onion service (needs Tor):  http://engineer2ezpeji52ipphljcflzyhetvy5r6tnqubtq45nzlxxv6rsqd.onion/
#
# The onion is plain http:// on purpose: an onion address is the service's
# public key, so the connection is authenticated and encrypted end to end
# before any HTTP is spoken, and a certificate would only prove a name the
# address has already proved. Tor Browser is the ordinary client, and it
# offers this address by itself, because the site sends an Onion-Location
# header.