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  <!-- Course: Module 4 Security -->
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  <!-- Course: Module 5 Infrastructure -->
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  <!-- Course: Module 6 Storage -->
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  <url>
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  <url>
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  <url>
    <loc>https://hellosde.com/system-design-course/storage/timeseries.html</loc>
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  <!-- Course: Module 7 Caching -->
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  <url>
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  <url>
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  <url>
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  <url>
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    <lastmod>2026-09-19</lastmod>
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  <url>
    <loc>https://hellosde.com/system-design-course/caching/redis-streams.html</loc>
    <lastmod>2026-09-19</lastmod>
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  <url>
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  <!-- Course: Module 8 Messaging -->
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  <url>
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  <url>
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  <url>
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  <!-- Course: Module 9 Consistency -->
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  <url>
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  <url>
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  <url>
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  <!-- Course: Module 10 Scalability -->
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  <!-- Course: Module 11 Distributed Systems -->
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  <!-- Course: Module 12 Data Pipelines -->
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    <loc>https://hellosde.com/system-design-course/data-pipelines/data-lineage.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/data-pipelines/realtime-analytics.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>

  <!-- Course: Module 13 Observability -->
  <url>
    <loc>https://hellosde.com/system-design-course/observability/logging.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/observability/metrics.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/observability/tracing.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/observability/monitoring.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/observability/opentelemetry.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/observability/dashboards.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/observability/incident-response.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>

  <!-- Course: Module 14 Key Numbers -->
  <url>
    <loc>https://hellosde.com/system-design-course/key-numbers/latency-numbers.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/key-numbers/throughput-numbers.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/key-numbers/storage-numbers.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/key-numbers/estimation.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/key-numbers/cost-numbers.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/key-numbers/sla-math.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/key-numbers/interview-reference.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>

  <!-- Course: Module 15 Decision Guides -->
  <url>
    <loc>https://hellosde.com/system-design-course/decision-guides/api-choice.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/decision-guides/db-choice.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/decision-guides/messaging-choice.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/decision-guides/cache-choice.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/decision-guides/realtime-choice.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/decision-guides/scaling-choice.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://hellosde.com/system-design-course/decision-guides/more-decisions.html</loc>
    <lastmod>2026-09-19</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
</urlset>
