{ "id": "YDzSX1MoX82eMz4k", "name": "Detect content decay and alert via Slack and email", "tags": [ { "id": "mHQntpbppFUpZPGm", "name": "template", "createdAt": "2026-02-17T08:30:26.885Z", "updatedAt": "2026-02-17T08:30:26.885Z" } ], "nodes": [ { "id": "1fd97044-715a-4542-a99e-140e1d73ce73", "name": "Weekly Monday 8AM Trigger", "type": "n8n-nodes-base.scheduleTrigger", "position": [ 320, 320 ], "parameters": { "rule": { "interval": [ { "field": "weeks", "triggerAtDay": [ 1 ], "triggerAtHour": 8 } ] } }, "typeVersion": 1.2 }, { "id": "34069535-dd52-4536-bbc8-f9abc5d7b9cc", "name": "Calculate Date Ranges", "type": "n8n-nodes-base.code", "position": [ 528, 320 ], "parameters": { "jsCode": "// Calculate date ranges\nconst now = new Date();\n\n// Recent period: last 7 days\nconst recentEnd = new Date(now);\nrecentEnd.setDate(recentEnd.getDate() - 3); // GSC data has 3-day delay\nconst recentStart = new Date(recentEnd);\nrecentStart.setDate(recentStart.getDate() - 7);\n\n// Previous period: 28 days before that\nconst prevEnd = new Date(recentStart);\nprevEnd.setDate(prevEnd.getDate() - 1);\nconst prevStart = new Date(prevEnd);\nprevStart.setDate(prevStart.getDate() - 28);\n\nconst fmt = (d) => d.toISOString().split('T')[0];\n\nreturn [{\n json: {\n recent_start: fmt(recentStart),\n recent_end: fmt(recentEnd),\n previous_start: fmt(prevStart),\n previous_end: fmt(prevEnd)\n }\n}];" }, "typeVersion": 2 }, { "id": "fdecf37e-0b0a-4542-9b18-6af9c37e894b", "name": "Fetch GSC Recent 7 Days", "type": "n8n-nodes-base.httpRequest", "position": [ 768, 224 ], "parameters": { "url": "https://www.googleapis.com/webmasters/v3/sites/{{ encodeURIComponent($env.GSC_SITE_URL) }}/searchAnalytics/query", "options": { "response": { "response": { "responseFormat": "json" } } }, "jsonBody": "={\n \"startDate\": \"{{ $json.recent_start }}\",\n \"endDate\": \"{{ $json.recent_end }}\",\n \"dimensions\": [\"page\"],\n \"rowLimit\": 500,\n \"startRow\": 0\n}", "sendBody": true, "specifyBody": "json", "authentication": "predefinedCredentialType", "nodeCredentialType": "googleSearchConsoleOAuth2Api" }, "typeVersion": 4.2 }, { "id": "7a9e78b0-dd0c-4fec-b8f2-6fffd93e56de", "name": "Fetch GSC Previous 28 Days", "type": "n8n-nodes-base.httpRequest", "position": [ 768, 416 ], "parameters": { "url": "https://www.googleapis.com/webmasters/v3/sites/{{ encodeURIComponent($env.GSC_SITE_URL) }}/searchAnalytics/query", "options": { "response": { "response": { "responseFormat": "json" } } }, "jsonBody": "={\n \"startDate\": \"{{ $json.previous_start }}\",\n \"endDate\": \"{{ $json.previous_end }}\",\n \"dimensions\": [\"page\"],\n \"rowLimit\": 500,\n \"startRow\": 0\n}", "sendBody": true, "specifyBody": "json", "authentication": "predefinedCredentialType", "nodeCredentialType": "googleSearchConsoleOAuth2Api" }, "typeVersion": 4.2 }, { "id": "81576c4a-ae86-4edf-b2d6-fe218c9023e8", "name": "Compare Periods and Detect Decay", "type": "n8n-nodes-base.code", "position": [ 1040, 320 ], "parameters": { "jsCode": "// Compare recent vs previous performance per page\nconst recentData = $('Fetch GSC Recent 7 Days').first().json;\nconst prevData = $('Fetch GSC Previous 28 Days').first().json;\n\nconst recentRows = recentData.rows || [];\nconst prevRows = prevData.rows || [];\n\n// Build lookup from previous period (normalize to weekly average)\nconst prevMap = {};\nfor (const row of prevRows) {\n const page = row.keys[0];\n prevMap[page] = {\n clicks: row.clicks / 4, // 28 days \u2192 weekly avg\n impressions: row.impressions / 4,\n ctr: row.ctr,\n position: row.position\n };\n}\n\nconst results = [];\n\nfor (const row of recentRows) {\n const page = row.keys[0];\n const prev = prevMap[page];\n\n if (!prev) continue; // New page, skip\n if (prev.clicks < 2) continue; // Too little traffic to matter\n\n const clickChange = row.clicks - prev.clicks;\n const clickChangePct = prev.clicks > 0 ? parseFloat(((clickChange / prev.clicks) * 100).toFixed(1)) : 0;\n const impressionChange = row.impressions - prev.impressions;\n const impressionChangePct = prev.impressions > 0 ? parseFloat(((impressionChange / prev.impressions) * 100).toFixed(1)) : 0;\n const positionChange = parseFloat((row.position - prev.position).toFixed(1)); // positive = worse\n\n // Determine decay severity\n let signal = 'STABLE';\n let severity = 'ok';\n\n if (clickChangePct <= -50 || (positionChange >= 5 && clickChangePct <= -30)) {\n signal = 'CRITICAL_DECAY';\n severity = 'critical';\n } else if (clickChangePct <= -30 || positionChange >= 3) {\n signal = 'DECAYING';\n severity = 'warning';\n } else if (clickChangePct <= -15 || positionChange >= 1.5) {\n signal = 'EARLY_DECAY';\n severity = 'watch';\n } else if (clickChangePct >= 20) {\n signal = 'GROWING';\n severity = 'good';\n }\n\n // Clean page path\n let pagePath = page;\n try {\n pagePath = new URL(page).pathname;\n } catch(e) {}\n\n results.push({\n json: {\n page_url: page,\n page_path: pagePath,\n \n clicks_now: row.clicks,\n clicks_before: parseFloat(prev.clicks.toFixed(1)),\n click_change: clickChange,\n click_change_pct: clickChangePct,\n \n impressions_now: row.impressions,\n impressions_before: parseFloat(prev.impressions.toFixed(1)),\n impression_change_pct: impressionChangePct,\n \n position_now: parseFloat(row.position.toFixed(1)),\n position_before: parseFloat(prev.position.toFixed(1)),\n position_change: positionChange,\n \n ctr_now: parseFloat((row.ctr * 100).toFixed(2)),\n ctr_before: parseFloat((prev.ctr * 100).toFixed(2)),\n \n signal: signal,\n severity: severity,\n \n date: new Date().toISOString().split('T')[0]\n }\n });\n}\n\n// Sort by worst decay first\nresults.sort((a, b) => a.json.click_change_pct - b.json.click_change_pct);\n\nreturn results;" }, "typeVersion": 2 }, { "id": "7a51c471-9f95-470c-b668-b5ea0aa46648", "name": "Log All Results to Decay Sheet", "type": "n8n-nodes-base.googleSheets", "position": [ 1280, 416 ], "parameters": { "columns": { "value": { "date": "={{ $json.date }}", "signal": "={{ $json.signal }}", "ctr_now": "={{ $json.ctr_now }}", "page_path": "={{ $json.page_path }}", "clicks_now": "={{ $json.clicks_now }}", "position_now": "={{ $json.position_now }}", "clicks_before": "={{ $json.clicks_before }}", "impressions_now": "={{ $json.impressions_now }}", "position_before": "={{ $json.position_before }}", "position_change": "={{ $json.position_change }}", "click_change_pct": "={{ $json.click_change_pct }}", "impression_change_pct": "={{ $json.impression_change_pct }}" }, "mappingMode": "defineBelow" }, "options": {}, "operation": "append", "sheetName": { "__rl": true, "mode": "name", "value": "Decay Log" }, "documentId": { "__rl": true, "mode": "url", "value": "={{ $env.DECAY_SHEET_URL }}" } }, "typeVersion": 4.5 }, { "id": "15898af0-2461-4f42-9804-6b02650ab69d", "name": "Filter Only Decaying Pages", "type": "n8n-nodes-base.filter", "position": [ 1280, 224 ], "parameters": { "options": {}, "conditions": { "options": { "leftValue": "", "caseSensitive": true, "typeValidation": "strict" }, "combinator": "or", "conditions": [ { "id": "is-critical", "operator": { "type": "string", "operation": "equals" }, "leftValue": "={{ $json.severity }}", "rightValue": "critical" }, { "id": "is-warning", "operator": { "type": "string", "operation": "equals" }, "leftValue": "={{ $json.severity }}", "rightValue": "warning" }, { "id": "is-watch", "operator": { "type": "string", "operation": "equals" }, "leftValue": "={{ $json.severity }}", "rightValue": "watch" } ] } }, "typeVersion": 2 }, { "id": "51aa6fc9-3b2f-46d1-832a-aba1ef343635", "name": "Build Weekly Decay Report", "type": "n8n-nodes-base.code", "position": [ 1520, 224 ], "parameters": { "jsCode": "// Build the weekly decay report\nconst allPages = $('Compare Periods and Detect Decay').all().map(i => i.json);\nconst decaying = $input.all().map(i => i.json);\n\nconst critical = decaying.filter(p => p.severity === 'critical');\nconst warning = decaying.filter(p => p.severity === 'warning');\nconst watch = decaying.filter(p => p.severity === 'watch');\nconst stable = allPages.filter(p => p.severity === 'ok');\nconst growing = allPages.filter(p => p.severity === 'good');\n\nconst today = new Date().toISOString().split('T')[0];\n\n// Total clicks lost\nconst totalClicksLost = decaying\n .filter(p => p.click_change < 0)\n .reduce((sum, p) => sum + Math.abs(p.click_change), 0);\n\nlet report = `*CONTENT DECAY REPORT \u2014 ${today}*\\n`;\nreport += `Pages analyzed: ${allPages.length}\\n\\n`;\n\nreport += `Critical decay: ${critical.length}\\n`;\nreport += `Decaying: ${warning.length}\\n`;\nreport += `Early signs: ${watch.length}\\n`;\nreport += `Stable: ${stable.length}\\n`;\nreport += `Growing: ${growing.length}\\n`;\nreport += `\\n*Est. weekly clicks lost: ${Math.round(totalClicksLost)}*\\n`;\n\nif (critical.length > 0) {\n report += `\\n\\n*CRITICAL \u2014 Act now:*\\n`;\n for (const p of critical.slice(0, 10)) {\n report += `\u2022 \\`${p.page_path}\\`\\n`;\n report += ` Clicks: ${p.clicks_before} \u2192 ${p.clicks_now} (*${p.click_change_pct}%*)\\n`;\n report += ` Position: ${p.position_before} \u2192 ${p.position_now} (${p.position_change > 0 ? '+' : ''}${p.position_change})\\n`;\n }\n}\n\nif (warning.length > 0) {\n report += `\\n*DECAYING \u2014 Update soon:*\\n`;\n for (const p of warning.slice(0, 10)) {\n report += `\u2022 \\`${p.page_path}\\` \u2014 clicks ${p.click_change_pct}%, pos ${p.position_change > 0 ? '+' : ''}${p.position_change}\\n`;\n }\n}\n\nif (watch.length > 0) {\n report += `\\n*EARLY SIGNS \u2014 Keep watching:*\\n`;\n for (const p of watch.slice(0, 5)) {\n report += `\u2022 \\`${p.page_path}\\` \u2014 clicks ${p.click_change_pct}%\\n`;\n }\n}\n\nif (growing.length > 0) {\n report += `\\n*TOP GROWING:*\\n`;\n const topGrow = growing.sort((a, b) => b.click_change_pct - a.click_change_pct).slice(0, 3);\n for (const p of topGrow) {\n report += `\u2022 \\`${p.page_path}\\` \u2014 clicks +${p.click_change_pct}%\\n`;\n }\n}\n\nreturn [{\n json: {\n report: report,\n total_pages: allPages.length,\n critical_count: critical.length,\n warning_count: warning.length,\n watch_count: watch.length,\n clicks_lost: Math.round(totalClicksLost),\n has_critical: critical.length > 0,\n critical_pages: critical.slice(0, 10),\n warning_pages: warning.slice(0, 10)\n }\n}];" }, "typeVersion": 2 }, { "id": "48e028a0-fce2-4585-a9b4-ddef05f29639", "name": "Post Report to Slack", "type": "n8n-nodes-base.slack", "position": [ 1760, 112 ], "parameters": { "text": "={{ $json.report }}", "otherOptions": {} }, "typeVersion": 2.2 }, { "id": "aff9be9e-2e4f-4df1-ad5f-e32c1669476f", "name": "Email Weekly Report", "type": "n8n-nodes-base.emailSend", "position": [ 1760, 320 ], "parameters": { "options": {}, "subject": "=Content Decay Report \u2014 {{ $json.critical_count }} critical, {{ $json.warning_count }} decaying | {{ $json.clicks_lost }} clicks lost" }, "typeVersion": 2.1 }, { "id": "4cf96f14-e1e9-4164-aee7-1002121f0d90", "name": "Check If Any Critical Pages", "type": "n8n-nodes-base.filter", "position": [ 1760, 512 ], "parameters": { "options": {}, "conditions": { "options": { "leftValue": "", "caseSensitive": true, "typeValidation": "strict" }, "combinator": "and", "conditions": [ { "id": "has-critical", "operator": { "type": "boolean", "operation": "true" }, "leftValue": "={{ $json.has_critical }}", "rightValue": "={{true}}" } ] } }, "typeVersion": 2 }, { "id": "52ef07b8-caa3-43a0-9898-efc5ff320bc1", "name": "Generate Fix Tasks for Critical Pages", "type": "n8n-nodes-base.code", "position": [ 1968, 512 ], "parameters": { "jsCode": "// Create individual tasks for critical decaying pages\nconst data = $input.first().json;\nconst tasks = [];\n\nfor (const page of data.critical_pages) {\n let action = '';\n \n if (page.position_change >= 5) {\n action = 'Major ranking drop. Check: lost backlinks, technical errors (404/redirect), or competitor new content. Run a backlink audit.';\n } else if (page.impression_change_pct <= -40) {\n action = 'Impressions tanking. Possible: Google algorithm change, keyword cannibalization, or index issues. Check Coverage report in GSC.';\n } else if (page.ctr_now < page.ctr_before * 0.7) {\n action = 'CTR dropped significantly. Update title tag and meta description. Check if SERP features (featured snippets, ads) pushed you down.';\n } else {\n action = 'Content likely outdated. Refresh with updated stats, new sections, better internal links. Check if search intent has shifted.';\n }\n\n tasks.push({\n json: {\n page_path: page.page_path,\n page_url: page.page_url,\n signal: page.signal,\n click_change_pct: page.click_change_pct,\n position_change: page.position_change,\n recommended_action: action,\n priority: 'HIGH',\n created: new Date().toISOString().split('T')[0]\n }\n });\n}\n\nreturn tasks;" }, "typeVersion": 2 }, { "id": "76f2b5b6-32c3-4261-8f6b-9183c61e38e1", "name": "Log Fix Tasks to Sheet", "type": "n8n-nodes-base.googleSheets", "position": [ 2192, 512 ], "parameters": { "columns": { "value": { "signal": "={{ $json.signal }}", "created": "={{ $json.created }}", "page_url": "={{ $json.page_url }}", "priority": "={{ $json.priority }}", "page_path": "={{ $json.page_path }}", "position_change": "={{ $json.position_change }}", "click_change_pct": "={{ $json.click_change_pct }}", "recommended_action": "={{ $json.recommended_action }}" }, "mappingMode": "defineBelow" }, "options": {}, "operation": "append", "sheetName": { "__rl": true, "mode": "name", "value": "Fix Tasks" }, "documentId": { "__rl": true, "mode": "url", "value": "={{ $env.DECAY_SHEET_URL }}" } }, "typeVersion": 4.5 }, { "id": "dd580d9b-91f2-4e75-b5d3-5467860eb2e7", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [ -704, -224 ], "parameters": { "color": "#8D9C44", "width": 660, "height": 976, "content": "## Detect content decay and alert via Slack and email\n\nThis workflow automatically detects declining content performance by comparing your recent Google Search Console data against a historical baseline, then alerts you with actionable fix recommendations.\n\n## How it works\n1. **Runs every Monday at 8 AM** on a weekly schedule\n2. **Pulls last 7 days** of page-level data from Google Search Console (recent performance)\n3. **Pulls previous 28 days** as a baseline (normalized to weekly averages)\n4. **Compares per-page metrics** \u2014 clicks, impressions, position, and CTR\n5. **Classifies each page** into decay severity levels:\n - **CRITICAL_DECAY** \u2014 clicks dropped 50%+ or position fell 5+ spots\n - **DECAYING** \u2014 clicks dropped 30%+ or position fell 3+ spots\n - **EARLY_DECAY** \u2014 clicks dropped 15%+ or position fell 1.5+ spots\n - **STABLE** \u2014 no significant change\n - **GROWING** \u2014 clicks up 20%+\n6. **Logs all results** to a Google Sheet for historical trend tracking\n7. **Sends a weekly report** via Slack and email with full breakdown\n8. **Auto-generates fix tasks** for critical pages with specific recommended actions\n\n## Setup steps\n1. Set **n8n environment variable** `GSC_SITE_URL` to your site (e.g., `https://yoursite.com`)\n2. Set **n8n environment variable** `DECAY_SHEET_URL` to your Google Sheet URL\n3. Create a Google Sheet with two tabs:\n - `Decay Log` \u2014 headers: `date`, `page_path`, `signal`, `clicks_now`, `clicks_before`, `click_change_pct`, `position_now`, `position_before`, `position_change`, `impressions_now`, `impression_change_pct`, `ctr_now`\n - `Fix Tasks` \u2014 headers: `created`, `priority`, `page_path`, `page_url`, `signal`, `click_change_pct`, `position_change`, `recommended_action`\n4. Connect **Google Search Console OAuth2** credentials\n5. Connect **Google Sheets OAuth2** credentials\n6. Connect **Slack OAuth2** credentials and set target channel\n7. Configure **SMTP / email** credentials and update recipient address\n\n## Customization\n- Adjust decay thresholds in the \"Compare Periods and Detect Decay\" node\n- Change schedule frequency (daily, bi-weekly, monthly)\n- Add more notification channels (Telegram, Discord, etc.)\n- Extend fix task logic with AI-powered content refresh suggestions" }, "typeVersion": 1 }, { "id": "4ef309df-5f0e-44da-9136-6275543ae50e", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [ 432, 48 ], "parameters": { "color": "#413A3A", "width": 328, "height": 164, "content": "## 1. Fetch GSC Data\nCalculates date ranges (recent 7 days vs. previous 28-day baseline) and fetches page-level performance from Google Search Console in parallel." }, "typeVersion": 1 }, { "id": "6881902b-441f-45b6-84d2-030540de839f", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [ 1072, 0 ], "parameters": { "color": "#413A3A", "width": 332, "height": 164, "content": "## 2. Detect Decay\nCompares recent vs. baseline metrics per page. Classifies each page as CRITICAL_DECAY, DECAYING, EARLY_DECAY, STABLE, or GROWING based on click and position changes." }, "typeVersion": 1 }, { "id": "89fa3787-df97-47dd-8dda-505d1c1d1416", "name": "Sticky Note3", "type": "n8n-nodes-base.stickyNote", "position": [ 1680, -96 ], "parameters": { "color": "#413A3A", "width": 276, "height": 180, "content": "## 3. Report and Alert\nBuilds a comprehensive weekly report with decay breakdown. Sends to Slack and email simultaneously. Pages with no decay are logged but not alerted." }, "typeVersion": 1 }, { "id": "02088b0f-83f2-4b51-afa7-ac7345e04529", "name": "Sticky Note4", "type": "n8n-nodes-base.stickyNote", "position": [ 1744, 752 ], "parameters": { "color": "#413A3A", "width": 332, "height": 180, "content": "## 4. Auto-Generate Fix Tasks\nFor critical pages, generates specific remediation tasks (backlink audit, content refresh, CTR optimization) and logs them to a separate Google Sheet tab." }, "typeVersion": 1 }, { "id": "d1e6cb92-3abe-4f97-a433-4c80070e718b", "name": "Sticky Note5", "type": "n8n-nodes-base.stickyNote", "position": [ 208, 512 ], "parameters": { "color": 3, "width": 480, "height": 140, "content": "\u26a0\ufe0f **Set environment variables** before activating:\n- `GSC_SITE_URL` \u2192 your verified site URL (e.g., `https://yoursite.com`)\n- `DECAY_SHEET_URL` \u2192 your Google Sheet URL for logging\n\nSee [n8n docs on environment variables](https://docs.n8n.io/hosting/configuration/environment-variables/)." }, "typeVersion": 1 }, { "id": "8ab794a9-6860-45d1-80ff-bf6fba6ee2d0", "name": "Sticky Note6", "type": "n8n-nodes-base.stickyNote", "position": [ 1984, 304 ], "parameters": { "color": 3, "width": 360, "height": 80, "content": "\u26a0\ufe0f **Update the email address** in this node to your own recipient address before activating." }, "typeVersion": 1 } ], "active": false, "settings": { "binaryMode": "separate", "availableInMCP": false, "executionOrder": "v1" }, "versionId": "0b8ecf93-1ddd-42be-9caf-4acffd3eef84", "connections": { "Calculate Date Ranges": { "main": [ [ { "node": "Fetch GSC Recent 7 Days", "type": "main", "index": 0 }, { "node": "Fetch GSC Previous 28 Days", "type": "main", "index": 0 } ] ] }, "Fetch GSC Recent 7 Days": { "main": [ [ { "node": "Compare Periods and Detect Decay", "type": "main", "index": 0 } ] ] }, "Build Weekly Decay Report": { "main": [ [ { "node": "Check If Any Critical Pages", "type": "main", "index": 0 }, { "node": "Post Report to Slack", "type": "main", "index": 0 }, { "node": "Email Weekly Report", "type": "main", "index": 0 } ] ] }, "Weekly Monday 8AM Trigger": { "main": [ [ { "node": "Calculate Date Ranges", "type": "main", "index": 0 } ] ] }, "Fetch GSC Previous 28 Days": { "main": [ [ { "node": "Compare Periods and Detect Decay", "type": "main", "index": 0 } ] ] }, "Filter Only Decaying Pages": { "main": [ [ { "node": "Build Weekly Decay Report", "type": "main", "index": 0 } ] ] }, "Check If Any Critical Pages": { "main": [ [ { "node": "Generate Fix Tasks for Critical Pages", "type": "main", "index": 0 } ] ] }, "Compare Periods and Detect Decay": { "main": [ [ { "node": "Filter Only Decaying Pages", "type": "main", "index": 0 }, { "node": "Log All Results to Decay Sheet", "type": "main", "index": 0 } ] ] }, "Generate Fix Tasks for Critical Pages": { "main": [ [ { "node": "Log Fix Tasks to Sheet", "type": "main", "index": 0 } ] ] } } }