diff --git a/robots.txt b/robots.txt
new file mode 100644
index 0000000..2f896b5
--- /dev/null
+++ b/robots.txt
@@ -0,0 +1,54 @@
+User-agent: *
+Allow: /
+Crawl-delay: 1
+
+# Major search engines
+User-agent: Googlebot
+Allow: /
+Crawl-delay: 0
+
+User-agent: Bingbot
+Allow: /
+Crawl-delay: 1
+
+User-agent: Slurp
+Allow: /
+
+User-agent: DuckDuckBot
+Allow: /
+
+# AI crawlers — explicitly welcome
+User-agent: GPTBot
+Allow: /
+
+User-agent: ChatGPT-User
+Allow: /
+
+User-agent: ClaudeBot
+Allow: /
+
+User-agent: Claude-Web
+Allow: /
+
+User-agent: anthropic-ai
+Allow: /
+
+User-agent: PerplexityBot
+Allow: /
+
+User-agent: Amazonbot
+Allow: /
+
+User-agent: cohere-ai
+Allow: /
+
+User-agent: YouBot
+Allow: /
+
+User-agent: Meta-ExternalAgent
+Allow: /
+
+Sitemap: https://arsamsabbagh.ir/sitemap.xml
+
+# AI-readable plain-text summary of this site
+# https://arsamsabbagh.ir/llms.txt