# Studio no-cost crawler guardrails. robots.txt is advisory; use Vercel Firewall for enforcement when traffic becomes material. User-agent: GPTBot Disallow: / User-agent: ChatGPT-User Disallow: / User-agent: ClaudeBot Disallow: / User-agent: Claude-Web Disallow: / User-agent: PerplexityBot Disallow: / User-agent: Bytespider Disallow: / User-agent: CCBot Disallow: / User-agent: Amazonbot Disallow: / User-agent: Applebot-Extended Disallow: / User-agent: Google-Extended Disallow: / User-agent: * Disallow: /api/ Allow: / Sitemap: https://thelingolegacy.com/sitemap.xml