{"product_id":"monitor-ai-crawler-policy-signals-llms-txt-http-checks","title":"Monitor AI Crawler Policy Signals: llms.txt \u0026 HTTP Checks","description":"\u003ch3\u003eMonitor AI crawler policy signals (llms.txt + HTTP checks) and get email alerts for changes\u003c\/h3\u003e\n\u003cp\u003eThis n8n workflow watches selected websites for AI crawler policy updates—optionally including \u003cstrong\u003ellms.txt\u003c\/strong\u003e presence and content hashes—and sends \u003cstrong\u003eone SMTP email\u003c\/strong\u003e when baselines or changes are detected. It keeps persistent snapshots in an \u003cstrong\u003en8n Data Table\u003c\/strong\u003e so you can track evolution over time.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this workflow does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRuns on demand or hourly:\u003c\/strong\u003e A manual trigger or hourly \u003cem\u003etick\u003c\/em\u003e (gated by \u003cstrong\u003epolicyCheckHour\u003c\/strong\u003e in Config) loads per-site snapshots once daily from your Data Table.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFetches public policy files safely:\u003c\/strong\u003e It retrieves rules with a descriptive \u003cstrong\u003eUser-Agent\u003c\/strong\u003e, using a \u003cstrong\u003e20-second timeout\u003c\/strong\u003e, paced requests, and up to \u003cstrong\u003ethree transient attempts\u003c\/strong\u003e (preserving successful responses during retries).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParses and matches crawler rules correctly:\u003c\/strong\u003e It parses user-agent groups case-insensitively, selects the most specific match, merges equally specific groups, falls back to \u003cem\u003e*\u003c\/em\u003e, strips comments, handles BOM and CRLF, ignores empty restrictions, and uses the \u003cstrong\u003elongest matching root rule\u003c\/strong\u003e with \u003cstrong\u003eAllow winning ties\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompares status + canonical paths:\u003c\/strong\u003e It checks bot status and canonical path lists. A \u003cstrong\u003erobots.txt 404\u003c\/strong\u003e means \u003cem\u003eallow all\u003c\/em\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional llms.txt monitoring:\u003c\/strong\u003e It reports llms.txt presence and verifies content via a \u003cstrong\u003ehash\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSends email only when needed:\u003c\/strong\u003e One SMTP email is sent if required; otherwise, no change sends no email. New baselines can be silent via Config.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePersists successful snapshots:\u003c\/strong\u003e It upserts updated site records by \u003cstrong\u003esiteKey\u003c\/strong\u003e, including robotsHash, policyJson, llmsTxt, and checkedAt.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUse cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSaaS operators tracking whether customers’ sites update AI crawling guidance.\u003c\/li\u003e\n  \u003cli\u003eAutomation engineers auditing \u003cem\u003erobots.txt\u003c\/em\u003e behavior and canonical allow\/disallow paths for specific bots.\u003c\/li\u003e\n  \u003cli\u003eTeams monitoring \u003cstrong\u003ellms.txt\u003c\/strong\u003e adoption or changes in published policy content.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003en8n requirement:\u003c\/strong\u003e n8n \u003cstrong\u003e2.8.4\u003c\/strong\u003e+\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData source:\u003c\/strong\u003e n8n Data Tables (columns: \u003cem\u003esiteKey\u003c\/em\u003e, \u003cem\u003erobotsHash\u003c\/em\u003e, \u003cem\u003epolicyJson\u003c\/em\u003e, \u003cem\u003ellmsTxt\u003c\/em\u003e, \u003cem\u003echeckedAt\u003c\/em\u003e)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEmail:\u003c\/strong\u003e SMTP credential integration (sent via n8n’s SMTP node)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCore nodes mentioned:\u003c\/strong\u003e \u003cem\u003eif\u003c\/em\u003e, \u003cem\u003eset\u003c\/em\u003e, \u003cem\u003ecode\u003c\/em\u003e, \u003cem\u003ewait\u003c\/em\u003e, \u003cem\u003eslack\u003c\/em\u003e, \u003cem\u003edata table\u003c\/em\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetup guidance:\u003c\/strong\u003e Use \u003cem\u003eSETUP.md\u003c\/em\u003e; run the workflow twice manually before enabling the daily schedule.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"N8N Commerce","offers":[{"title":"Default Title","offer_id":46289255694515,"sku":"N8N-21572","price":74.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6279\/6723\/files\/vM61nMCpWdWbI642zgZQ6_TsK7w7ge.png?v=1793006677","url":"https:\/\/buyflowscripts.com\/products\/monitor-ai-crawler-policy-signals-llms-txt-http-checks","provider":"N8N Commerce","version":"1.0","type":"link"}