# As a condition of accessing this website, you agree to abide by the following
# content signals:

# (a)  If a content-signal = yes, you may collect content for the corresponding
#      use.
# (b)  If a content-signal = no, you may not collect content for the
#      corresponding use.
# (c)  If the website operator does not include a content signal for a
#      corresponding use, the website operator neither grants nor restricts
#      permission via content signal with respect to the corresponding use.

# The content signals and their meanings are:

# search:   Building a search index and providing search results (e.g., returning
#           hyperlinks and short excerpts from your website's contents). Search
#           does not include providing AI-generated search summaries.

# ai-input: Inputting content into one or more AI models (e.g., retrieval
#           augmented generation, grounding, or other real-time taking of content
#           for generative AI search answers).

# ai-train: Training or fine-tuning AI models.

# SEARCH ENGINE ACCESS:
#
# Traditional search engines and indexing services, including Google, Bing,
# DuckDuckGo, Brave Search, and other comparable search providers, may crawl,
# access, index, cache, and display this website's publicly available content
# for the purpose of conventional search indexing and search results, subject
# to the search content signal.
#
# Permission to crawl or index content for conventional search purposes does
# NOT constitute permission to use that content as input to generative AI
# systems, AI answer engines, retrieval-augmented generation systems, model
# pre-processing pipelines, or other AI-related purposes.

# AI TRAINING RESTRICTION:
#
# Unless explicitly authorized by an applicable ai-train = yes signal, all
# website content is expressly excluded from permission to be used for:
#
#   - training AI models;
#   - pre-training or continued training of AI models;
#   - fine-tuning or instruction-tuning AI models;
#   - reinforcement-learning datasets;
#   - creating or augmenting datasets intended for AI training;
#   - distillation of models or generation of training data;
#   - evaluation datasets where the content is incorporated into model training
#     or fine-tuning;
#   - synthetic-data generation intended to train or improve AI models.
#
# Conventional search indexing permission, where granted, does not override
# or supersede this AI training restriction.

# AI INPUT / GENERATIVE SEARCH:
#
# Permission to access or index content for conventional search does not,
# by itself, grant permission to submit that content to AI models or use it
# for retrieval-augmented generation, grounding, AI-generated summaries,
# conversational search answers, or similar generative-AI applications.
#
# Such uses require separate authorization through the ai-input content signal.

# SEPARATION OF USES:
#
# The permissions for search, ai-input, and ai-train are independent.
# Permission for one purpose must not be interpreted as permission for another.
#
# In particular:
#
#   search = yes
#   ai-input = no
#   ai-train = no
#
# means that conventional search engines may crawl and index the website and
# provide ordinary search results, but the content may not be submitted to AI
# systems for generative answers and may not be used to train or fine-tune
# AI models.

# ANY RESTRICTIONS EXPRESSED VIA CONTENT SIGNALS ARE EXPRESS RESERVATIONS OF
# RIGHTS UNDER ARTICLE 4 OF THE EUROPEAN UNION DIRECTIVE 2019/790 ON COPYRIGHT
# AND RELATED RIGHTS IN THE DIGITAL SINGLE MARKET.

User-agent: *
Allow: /

# AI training / generative AI crawlers
User-agent: GPTBot
Disallow: /

User-agent: ChatGPT-User
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: Google-CloudVertexBot
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: anthropic-ai
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: PerplexityBot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: Meta-ExternalAgent
Disallow: /

User-agent: FacebookBot
Disallow: /

User-agent: Amazonbot
Disallow: /

User-agent: cohere-ai
Disallow: /

User-agent: AI2Bot
Disallow: /

User-agent: Diffbot
Disallow: /

# Conventional search engines
# These remain permitted to crawl and index the site.

User-agent: Googlebot
Allow: /

User-agent: Bingbot
Allow: /

User-agent: DuckDuckBot
Allow: /

User-agent: Bravebot
Allow: /

User-agent: YandexBot
Allow: /

User-agent: Baiduspider
Allow: /

User-agent: Applebot
Allow: /