# Block SEO scraper bots
User-agent: AhrefsBot
Disallow: /

User-agent: SemrushBot
Disallow: /

User-agent: DotBot
Disallow: /

User-agent: MJ12bot
Disallow: /

# Allow search engines
User-agent: Googlebot
Allow: /

User-agent: Bingbot
Allow: /

# AI Search Engine Bots
User-agent: GPTBot
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: OAI-SearchBot
Allow: /

User-agent: Google-Extended
Allow: /

User-agent: ClaudeBot
Allow: /

User-agent: Claude-Web
Allow: /

User-agent: anthropic-ai
Allow: /

User-agent: PerplexityBot
Allow: /

User-agent: Bytespider
Allow: /

User-agent: CCBot
Allow: /

User-agent: Applebot-Extended
Allow: /

User-agent: cohere-ai
Allow: /

User-agent: Amazonbot
Allow: /

User-agent: FacebookBot
Allow: /

User-agent: YouBot
Allow: /

User-agent: *
Allow: /

Sitemap: https://image3d.io/sitemap.xml

# Content-Signal directives (draft spec, 2025)
# Allow AI search engines to index and cite this content
X-Content-Signal: search=yes
# Disallow use of this content for AI model training
X-Content-Signal: ai-train=no
# Allow use as direct AI prompt input / RAG corpus (boosts ChatGPT/Perplexity citations)
X-Content-Signal: ai-input=yes