diff --git a/config/_default/menus/main.en.yaml b/config/_default/menus/main.en.yaml
index 3229b45ba52..392360eb8fc 100644
--- a/config/_default/menus/main.en.yaml
+++ b/config/_default/menus/main.en.yaml
@@ -5745,6 +5745,327 @@ menu:
       parent: ai_agents_console
       identifier: ai_agents_console_setup
       weight: 1
+    - name: CI/CD Optimization
+      url: continuous_integration/
+      pre: ci
+      identifier: cco
+      parent: software_delivery_heading
+      weight: 5000
+    - name: CI Pipeline Setup
+      url: continuous_integration/pipelines/
+      parent: cco
+      identifier: cco_pipeline_setup
+      weight: 1
+    - name: AWS CodePipeline
+      url: continuous_integration/pipelines/awscodepipeline/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_awscodepipeline
+      weight: 101
+    - name: Azure Pipelines
+      url: continuous_integration/pipelines/azure/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_azure
+      weight: 102
+    - name: Buildkite
+      url: continuous_integration/pipelines/buildkite/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_buildkite
+      weight: 103
+    - name: CircleCI
+      url: continuous_integration/pipelines/circleci/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_circleci
+      weight: 104
+    - name: Codefresh
+      url: continuous_integration/pipelines/codefresh/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_codefresh
+      weight: 105
+    - name: GitHub Actions
+      url: continuous_integration/pipelines/github/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_github
+      weight: 106
+    - name: GitLab
+      url: continuous_integration/pipelines/gitlab/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_gitlab
+      weight: 107
+    - name: Jenkins
+      url: continuous_integration/pipelines/jenkins/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_jenkins
+      weight: 108
+    - name: TeamCity
+      url: continuous_integration/pipelines/teamcity/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_teamcity
+      weight: 109
+    - name: Other CI Providers
+      url: continuous_integration/pipelines/custom/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_custom
+      weight: 110
+    - name: Automatic Job Retries
+      url: continuous_integration/pipelines/automatic_retries/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_automatic_retries
+      weight: 111
+    - name: Custom Commands
+      url: continuous_integration/pipelines/custom_commands/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_custom_commands
+      weight: 112
+    - name: Custom Tags and Measures
+      url: continuous_integration/pipelines/custom_tags_and_measures/
+      parent: cco_pipeline_setup
+      identifier: cco_pipeline_custom_tags_and_measures
+      weight: 113
+    - name: Test Suite Setup
+      url: tests/setup/
+      parent: cco
+      identifier: cco_test_setup
+      weight: 2
+    - name: .NET
+      url: tests/setup/dotnet/
+      parent: cco_test_setup
+      identifier: cco_test_setup_dotnet
+      weight: 201
+    - name: Go
+      url: tests/setup/go/
+      parent: cco_test_setup
+      identifier: cco_test_setup_go
+      weight: 202
+    - name: Java and JVM Languages
+      url: tests/setup/java/
+      parent: cco_test_setup
+      identifier: cco_test_setup_java
+      weight: 203
+    - name: JavaScript and TypeScript
+      url: tests/setup/javascript/
+      parent: cco_test_setup
+      identifier: cco_test_setup_javascript
+      weight: 204
+    - name: Python
+      url: tests/setup/python/
+      parent: cco_test_setup
+      identifier: cco_test_setup_python
+      weight: 205
+    - name: Ruby
+      url: tests/setup/ruby/
+      parent: cco_test_setup
+      identifier: cco_test_setup_ruby
+      weight: 206
+    - name: Swift
+      url: tests/setup/swift/
+      parent: cco_test_setup
+      identifier: cco_test_setup_swift
+      weight: 207
+    - name: JUnit Report Uploads
+      url: tests/setup/junit_xml/
+      parent: cco_test_setup
+      identifier: cco_test_setup_junit_xml
+      weight: 208
+    - name: Bazel
+      url: tests/setup/bazel/
+      parent: cco_test_setup
+      identifier: cco_test_setup_bazel
+      weight: 209
+    - name: Bazel Rules for Go Tests
+      url: tests/setup/bazel/go/
+      parent: cco_test_setup_bazel
+      identifier: cco_test_setup_bazel_go
+      weight: 20901
+    - name: Bazel Rules for Java Tests
+      url: tests/setup/bazel/java/
+      parent: cco_test_setup_bazel
+      identifier: cco_test_setup_bazel_java
+      weight: 20902
+    - name: Bazel Rules for Python Tests
+      url: tests/setup/bazel/python/
+      parent: cco_test_setup_bazel
+      identifier: cco_test_setup_bazel_python
+      weight: 20903
+    - name: Network Settings
+      url: tests/network/
+      parent: cco_test_setup
+      identifier: cco_test_setup_network
+      weight: 210
+    - name: Tests in Containers
+      url: tests/containers/
+      parent: cco_test_setup
+      identifier: cco_test_setup_containers
+      weight: 211
+    - name: CI/CD Health
+      url: tests/test_health/
+      parent: cco
+      identifier: cco_ci_cd_health
+      weight: 3
+    - name: Explorer
+      url: continuous_integration/explorer/
+      parent: cco
+      identifier: cco_explorer
+      weight: 4
+    - name: Search Syntax
+      url: continuous_integration/explorer/search_syntax/
+      parent: cco_explorer
+      identifier: cco_explorer_search_syntax
+      weight: 401
+    - name: Search Pipeline Executions
+      url: continuous_integration/explorer/facets/
+      parent: cco_explorer
+      identifier: cco_explorer_facets
+      weight: 402
+    - name: Export
+      url: continuous_integration/explorer/export/
+      parent: cco_explorer
+      identifier: cco_explorer_export
+      weight: 403
+    - name: Saved Views
+      url: continuous_integration/explorer/saved_views/
+      parent: cco_explorer
+      identifier: cco_explorer_saved_views
+      weight: 404
+    - name: Search and Manage
+      url: continuous_integration/search/
+      parent: cco_explorer
+      identifier: cco_explorer_search_and_manage
+      weight: 405
+    - name: Flaky Test Management
+      url: tests/flaky_management/
+      parent: cco
+      identifier: cco_flaky_management
+      weight: 5
+    - name: Working with Flaky Tests
+      url: tests/flaky_tests/
+      parent: cco_flaky_management
+      identifier: cco_flaky_management_working_with
+      weight: 501
+    - name: Features
+      url: tests/ # TBD placeholder - no landing page yet
+      parent: cco
+      identifier: cco_features
+      weight: 6
+    - name: Early Flake Detection
+      url: tests/flaky_tests/early_flake_detection/
+      parent: cco_features
+      identifier: cco_features_early_flake_detection
+      weight: 601
+    - name: Auto Test Retries
+      url: tests/flaky_tests/auto_test_retries/
+      parent: cco_features
+      identifier: cco_features_auto_test_retries
+      weight: 602
+    - name: Test Impact Analysis
+      url: tests/test_impact_analysis/
+      parent: cco_features
+      identifier: cco_features_tia
+      weight: 603
+    - name: How It Works
+      url: tests/test_impact_analysis/how_it_works/
+      parent: cco_features_tia
+      identifier: cco_features_tia_how_it_works
+      weight: 60301
+    - name: Troubleshooting
+      url: tests/test_impact_analysis/troubleshooting/
+      parent: cco_features_tia
+      identifier: cco_features_tia_troubleshooting
+      weight: 60302
+    - name: Setup
+      url: tests/test_impact_analysis/setup/
+      parent: cco_features_tia
+      identifier: cco_features_tia_setup
+      weight: 60303
+    - name: .NET
+      url: tests/test_impact_analysis/setup/dotnet/
+      parent: cco_features_tia_setup
+      identifier: cco_features_tia_setup_dotnet
+      weight: 6030301
+    - name: JavaScript and TypeScript
+      url: tests/test_impact_analysis/setup/javascript/
+      parent: cco_features_tia_setup
+      identifier: cco_features_tia_setup_javascript
+      weight: 6030302
+    - name: Python
+      url: tests/test_impact_analysis/setup/python/
+      parent: cco_features_tia_setup
+      identifier: cco_features_tia_setup_python
+      weight: 6030303
+    - name: Swift
+      url: tests/test_impact_analysis/setup/swift/
+      parent: cco_features_tia_setup
+      identifier: cco_features_tia_setup_swift
+      weight: 6030304
+    - name: Java
+      url: tests/test_impact_analysis/setup/java/
+      parent: cco_features_tia_setup
+      identifier: cco_features_tia_setup_java
+      weight: 6030305
+    - name: Ruby
+      url: tests/test_impact_analysis/setup/ruby/
+      parent: cco_features_tia_setup
+      identifier: cco_features_tia_setup_ruby
+      weight: 6030306
+    - name: Go
+      url: tests/test_impact_analysis/setup/go/
+      parent: cco_features_tia_setup
+      identifier: cco_features_tia_setup_go
+      weight: 6030307
+    - name: Test Parallelization
+      url: tests/test_parallelization/
+      parent: cco_features
+      identifier: cco_features_parallelization
+      weight: 604
+    - name: Setup
+      url: tests/test_parallelization/setup/
+      parent: cco_features_parallelization
+      identifier: cco_features_parallelization_setup
+      weight: 60401
+    - name: Configuration
+      url: tests/test_parallelization/configuration/
+      parent: cco_features_parallelization
+      identifier: cco_features_parallelization_configuration
+      weight: 60402
+    - name: Best Practices
+      url: tests/test_parallelization/best_practices/
+      parent: cco_features_parallelization
+      identifier: cco_features_parallelization_best_practices
+      weight: 60403
+    - name: Troubleshooting
+      url: tests/test_parallelization/troubleshooting/
+      parent: cco_features_parallelization
+      identifier: cco_features_parallelization_troubleshooting
+      weight: 60404
+    - name: Code Coverage
+      url: tests/code_coverage/
+      parent: cco_features
+      identifier: cco_features_code_coverage
+      weight: 605
+    - name: Monitors
+      url: monitors/types/ci/?tab=pipelines
+      parent: cco
+      identifier: cco_monitors
+      weight: 7
+    - name: Guides
+      url: continuous_integration/guides/
+      parent: cco
+      identifier: cco_guides
+      weight: 8
+    - name: Troubleshooting
+      url: continuous_integration/troubleshooting/ # TBD placeholder - parent group
+      parent: cco
+      identifier: cco_troubleshooting
+      weight: 9
+    - name: Pipeline Troubleshooting
+      url: continuous_integration/troubleshooting/
+      parent: cco_troubleshooting
+      identifier: cco_troubleshooting_pipeline
+      weight: 901
+    - name: Tests Troubleshooting
+      url: tests/troubleshooting/
+      parent: cco_troubleshooting
+      identifier: cco_troubleshooting_tests
+      weight: 902
     - name: CI Visibility
       url: continuous_integration/
       pre: ci
diff --git a/layouts/partials/nav/left-nav.html b/layouts/partials/nav/left-nav.html
index 9747a465fe8..0832a65d58a 100644
--- a/layouts/partials/nav/left-nav.html
+++ b/layouts/partials/nav/left-nav.html
@@ -69,7 +69,7 @@
                                             <ul class="list-unstyled sub-menu {{ if not (in (slice "automatic_instrumentation" "custom_instrumentation" "dyninst" "single_step_apm" "auto_dd_libraries" "observability_pipelines_reference_processing_language" "observability_pipelines_vector_configuration" "cloud_cost_container_cost_allocation" "cloud_cost_saas_cost_integrations" "csm_setup_enterprise" "csm_setup_pro" "csm_setup_cloud_workload_security" "cspm_frameworks_benchmarks" "cspm_findings_explorer" "cws_workload_security_rules" "otel_integrations" "otel_collector_configuration" "rum_dashboards"
                                             "rum_browser_setup" "rum_browser" "rum_session_replay_browser" "rum_session_replay_mobile" "rum_mobile_android" "rum_mobile_ios" "rum_mobile_flutter" "rum_mobile_kotlin" "rum_mobile_react_native" "rum_mobile_roku" "rum_mobile_unity" "rum_mobile_maui" "rum_cpp" "rum_correlate_with_other_telemetry_profiling" "pa_session_replay_mobile" "pa_session_replay_browser" "cloudcraft_api_aws_accounts" "cloudcraft_api_azure_accounts" "cloudcraft_api_blueprints" "cloudcraft_api_budgets" "cloudcraft_api_users" "appsec_enabling_single_step" "appsec_enabling_tracing_libraries" "synthetics_platform_dashboards" "synthetics_private_location" "synthetics_results_explorer" "ndm_netflow" "dashboards_ddsql_editor_reference" "application_security_software_composition_analysis_setup"
                                             "application_security_code_security_setup" "tracing_proxies" "appsec_threats_management_setup" "observability_pipelines_log_volume_control" "observability_pipelines_dual_ship_logs" "observability_pipelines_archive_logs" "observability_pipelines_split_logs" "observability_pipelines_sensitive_data_redaction" "observability_pipelines_log_enrichment" "observability_pipelines_install_the_worker" "csm_setup_agentless_scanning" "observability_pipelines_generate_metrics" "log_explorer_calculated_fields" "test_impact_analysis_setup" "dbm_setup_postgres_rds" "dbm_postgres_supabase" "sca_setup_runtime" "ndm_setup" "otel-setup-collector-exporter" "otel-setup-intake-endpoint" "otel_guides_migration" "otel-api-dd-sdk" "otel-setup-agent" "ide_plugins_idea" "ide_plugins_vscode" "agent_configuration_proxy"
-                                            "catalog_set_up" "catalog_entity_model" "asm_serverless" "otel-setup-ddot" "otel-setup-other" "cloud_siem_custom_detection_rules" "llm_obs_managed_evaluations" "llm_obs_external_evaluations" "cnm_analytics" "cloud_siem_open_cybersecurity_schema_framework" "infrastructure_livecontainers_explorer" "otel-dd-sdk-parent" "llm_obs_custom_llm_as_a_judge_evaluations" "ndm_profiles" "synthetics_notifications_template_variables" "dev_tool_int_mcp_server" "serverless_aws_lambda" "serverless_step_functions" "serverless_aws_fargate" "serverless_app_services" "serverless_container_apps" "serverless_azure_functions" "serverless_logic_apps" "serverless_gcr" "serverless_azure_database_messaging_services" "asm_api_security" "application_security_security_signals" "application_security_policies") .Identifier) }}d-none{{ end }}">
+                                            "catalog_set_up" "catalog_entity_model" "asm_serverless" "otel-setup-ddot" "otel-setup-other" "cloud_siem_custom_detection_rules" "llm_obs_managed_evaluations" "llm_obs_external_evaluations" "cnm_analytics" "cloud_siem_open_cybersecurity_schema_framework" "infrastructure_livecontainers_explorer" "otel-dd-sdk-parent" "llm_obs_custom_llm_as_a_judge_evaluations" "ndm_profiles" "synthetics_notifications_template_variables" "dev_tool_int_mcp_server" "serverless_aws_lambda" "serverless_step_functions" "serverless_aws_fargate" "serverless_app_services" "serverless_container_apps" "serverless_azure_functions" "serverless_logic_apps" "serverless_gcr" "serverless_azure_database_messaging_services" "asm_api_security" "application_security_security_signals" "application_security_policies" "cco_features_tia" "cco_features_parallelization") .Identifier) }}d-none{{ end }}">
 
                                             {{/*  LEVEL 4 */}}
                                             {{ range .Children }}