# Additional Check Opportunities ## Comprehensive Analysis of Remaining Performance Checks **Date**: February 26, 2026 **Purpose**: Identify checks beyond the current 64+ to reach near-complete coverage **Status**: Discovery phase - 40+ additional opportunities identified --- ## CATEGORY A: ADVANCED WORDPRESS CHECKS (10 checks) ✅ ### A.1 - Gutenberg Block Performance **What to Check**: - Are custom Gutenberg blocks using render_callback? - Block registration in wp_enqueue_block_editor_assets - Client-side vs server-side rendering **Remediation Opportunity**: ``` IF: Custom Gutenberg blocks with slow callbacks THEN: Optimize block rendering or switch to simpler blocks ``` --- ### A.2 - WP Query Efficiency **What to Check**: - Most common WP_Query calls in plugins - Queries with high post__in counts - Recursive queries **Remediation Opportunity**: ``` IF: Inefficient WP_Query patterns detected THEN: Recommend query optimization or caching ``` --- ### A.3 - Post Type Performance **What to Check**: - Number of custom post types registered - Post type with most posts - Post type pagination overhead **Remediation Opportunity**: ``` IF: Too many custom post types (>20) THEN: Consider consolidating or archiving ``` --- ### A.4 - Taxonomy Bloat **What to Check**: - Number of terms per taxonomy - Taxonomy with most terms - Orphaned taxonomy terms **Remediation Opportunity**: ``` IF: Taxonomy has 100,000+ terms THEN: May slow down taxonomy queries SOLUTION: Archive old terms or use different structure ``` --- ### A.5 - Duplicate Plugin Functionality **What to Check**: - Two SEO plugins active (Yoast + All in One) - Two caching plugins active - Two backup plugins active - Two security plugins active **Remediation Opportunity**: ``` IF: Duplicate functionality detected THEN: Deactivate one plugin to reduce overhead IMPACT: 5-10% performance improvement ``` --- ### A.6 - Plugin Version Compatibility **What to Check**: - Plugin version vs WordPress version compatibility - Plugin version vs PHP version compatibility - Out-of-date plugins with updates available **Remediation Opportunity**: ``` IF: Plugin incompatible with current versions THEN: Update plugin or replace with compatible alternative ``` --- ### A.7 - Theme Code Quality **What to Check**: - Theme functions.php file size (>100KB = bloated) - Theme database queries count - Theme enqueue dependencies **Remediation Opportunity**: ``` IF: Theme functions.php > 100KB THEN: Code likely bloated, consider lightweight theme ``` --- ### A.8 - Widget Analysis **What to Check**: - Number of active widgets - Widget hooks (wp_head, wp_footer calls) - Custom widget database queries **Remediation Opportunity**: ``` IF: Many widgets with database queries THEN: Limit active widgets to high-performance ones ``` --- ### A.9 - Custom Post Meta Analysis **What to Check**: - Custom post meta keys without indexes - Post meta with large values (serialized arrays) - Post meta query patterns in slow log **Remediation Opportunity**: ``` IF: Large serialized postmeta values THEN: Consider splitting into separate postmeta entries ``` --- ### A.10 - Attachment Optimization **What to Check**: - Number of attachment revisions - Unattached media files - Thumbnail generation settings **Remediation Opportunity**: ``` IF: Each attachment has multiple revisions THEN: Delete unused attachment revisions ``` --- ## CATEGORY B: ADVANCED DATABASE CHECKS (12 checks) ✅ ### B.1 - EXPLAIN PLAN Analysis **What to Check**: - Parse slow queries and run EXPLAIN on them - Identify full table scans - Identify missing indexes from EXPLAIN **Remediation Opportunity**: ``` IF: Full table scan detected in slow query THEN: Add index to WHERE clause columns ``` --- ### B.2 - Orphaned Tables **What to Check**: - Tables not matching any plugin/theme - Tables from deleted plugins - Test tables left behind **Remediation Opportunity**: ``` IF: Orphaned tables found THEN: DELETE orphaned tables to clean database ``` --- ### B.3 - NULL Column Analysis **What to Check**: - Columns that are always NULL - Columns that should be nullable but aren't **Remediation Opportunity**: ``` IF: Columns are always NULL THEN: Remove column or set default value ``` --- ### B.4 - Character Set Consistency **What to Check**: - Mixed character sets (utf8 vs utf8mb4) - Mixed collations - Conversion inefficiencies **Remediation Opportunity**: ``` IF: Mixed character sets detected THEN: Convert all to utf8mb4_unicode_ci ``` --- ### B.5 - Replication Lag Detection **What to Check**: - If using replication, check Seconds_Behind_Master - Replication backlog **Remediation Opportunity**: ``` IF: Seconds_Behind_Master > 60 THEN: Replication lagging, investigate ``` --- ### B.6 - Table Statistics Freshness **What to Check**: - When table statistics were last updated - InnoDB stats **Remediation Opportunity**: ``` IF: Statistics older than 30 days THEN: Run ANALYZE TABLE to update ``` --- ### B.7 - Connection Pool Analysis **What to Check**: - Current vs max connections ratio - Connection creation rate - Connection pool saturation **Remediation Opportunity**: ``` IF: Connection creation rate very high THEN: Implement connection pooling ``` --- ### B.8 - Lock Wait Detection **What to Check**: - Lock timeout frequency - Most frequently locked tables - Lock wait time trend **Remediation Opportunity**: ``` IF: High lock waits on wp_options THEN: Add indexes or split options table ``` --- ### B.9 - Query Cache Hit Rate **What to Check**: - Qcache_hits vs Qcache_inserts ratio - Query cache effectiveness **Remediation Opportunity**: ``` IF: Hit rate < 50% THEN: Query cache inefficient, disable it ``` --- ### B.10 - Deadlock Detection **What to Check**: - Frequency of InnoDB deadlocks - Tables involved in deadlocks **Remediation Opportunity**: ``` IF: Deadlocks > 10/day THEN: Investigate transaction order and add indexes ``` --- ### B.11 - Slave Lag in Replication **What to Check**: - MySQL replication status - Slave thread status **Remediation Opportunity**: ``` IF: Slave status shows errors THEN: Fix replication issues ``` --- ### B.12 - Query Parse Time **What to Check**: - Time spent in query parser vs execution - Parse overhead percentage **Remediation Opportunity**: ``` IF: Parse time > 10% of total THEN: Consider query plan caching ``` --- ## CATEGORY C: CACHING LAYER ANALYSIS (8 checks) ✅ ### C.1 - Cache-Control Headers **What to Check**: - Cache-Control headers on static files - Cache-Control on dynamic content - Cache busting strategy **Remediation Opportunity**: ``` IF: No Cache-Control headers on static assets THEN: Add proper cache headers for 1 year caching ``` --- ### C.2 - ETag Configuration **What to Check**: - ETag enabled/disabled - ETag generation method - ETag efficiency **Remediation Opportunity**: ``` IF: ETags enabled but not using THEN: Disable ETags for faster responses ``` --- ### C.3 - Browser Cache Effectiveness **What to Check**: - 304 Not Modified response rate - Cache hit ratio from access logs **Remediation Opportunity**: ``` IF: Low 304 response rate THEN: Improve cache headers and versioning ``` --- ### C.4 - Object Cache Hit Rate **What to Check**: - Redis/Memcached hit rate - Cache misses per request **Remediation Opportunity**: ``` IF: Hit rate < 70% THEN: Optimize cache key strategy ``` --- ### C.5 - Cache Key Collisions **What to Check**: - Potential cache key overlaps - Cache invalidation patterns **Remediation Opportunity**: ``` IF: Cache invalidation too broad THEN: Use more granular cache keys ``` --- ### C.6 - Cache Stampede Detection **What to Check**: - Multiple requests for same expired key - Thundering herd problem **Remediation Opportunity**: ``` IF: Cache stampede detected THEN: Implement cache locking or probabilistic caching ``` --- ### C.7 - CDN Cache Headers **What to Check**: - Cloudflare/CDN cache settings - Cache TTL at CDN level **Remediation Opportunity**: ``` IF: CDN cache TTL too short THEN: Increase TTL for static assets ``` --- ### C.8 - Stale Content Serving **What to Check**: - Cache stale-while-revalidate usage - Background cache refresh strategy **Remediation Opportunity**: ``` IF: Content always fresh from origin THEN: Consider stale-while-revalidate strategy ``` --- ## CATEGORY D: SECURITY VS PERFORMANCE (8 checks) ✅ ### D.1 - SSL Certificate Chain Depth **What to Check**: - SSL certificate chain length - Unnecessary intermediates **Remediation Opportunity**: ``` IF: Chain depth > 3 THEN: Optimize certificate chain for faster TLS handshake ``` --- ### D.2 - HSTS Headers **What to Check**: - HSTS max-age value - HSTS preload list **Remediation Opportunity**: ``` IF: HSTS max-age very high THEN: May prevent fast downgrades, but secure TRADEOFF: Security vs flexibility ``` --- ### D.3 - CSP Header Impact **What to Check**: - Content-Security-Policy header presence - CSP report generation overhead **Remediation Opportunity**: ``` IF: CSP report-uri active THEN: May generate overhead, consider disabling in production ``` --- ### D.4 - CORS Policy **What to Check**: - CORS preflight requests - Preflight caching headers **Remediation Opportunity**: ``` IF: High rate of OPTIONS requests THEN: Add Access-Control-Max-Age: 86400 ``` --- ### D.5 - WAF Rule Performance **What to Check**: - ModSecurity rule execution time - Number of rules enabled **Remediation Opportunity**: ``` IF: WAF adds > 100ms latency THEN: Optimize or disable non-critical rules ``` --- ### D.6 - Rate Limiting Config **What to Check**: - Rate limits too aggressive - Rate limit headers **Remediation Opportunity**: ``` IF: Many 429 responses for legitimate traffic THEN: Increase rate limits ``` --- ### D.7 - Bot Detection Overhead **What to Check**: - Bot detection library performance - Challenge overhead **Remediation Opportunity**: ``` IF: Bot detection adds latency THEN: Whitelist known bots or use async detection ``` --- ### D.8 - Password Strength Requirements **What to Check**: - Password hashing algorithm (bcrypt vs md5) - Hash iterations **Remediation Opportunity**: ``` IF: Using fast hash (md5) for performance THEN: Use proper bcrypt with ~12 rounds TRADEOFF: Security over raw speed ``` --- ## CATEGORY E: CONTENT ANALYSIS (10 checks) ✅ ### E.1 - JavaScript Bloat **What to Check**: - Total JavaScript size - JavaScript files count - Unminified JavaScript **Remediation Opportunity**: ``` IF: Unminified JS detected THEN: Minify and bundle JavaScript IMPACT: 30-60% reduction in size ``` --- ### E.2 - CSS Bloat **What to Check**: - Total CSS size - CSS files count - Unminified CSS - Unused CSS **Remediation Opportunity**: ``` IF: CSS > 500KB THEN: Minify, bundle, or remove unused CSS ``` --- ### E.3 - Render-Blocking Resources **What to Check**: - JavaScript in without async/defer - CSS not optimized for critical path - Fonts blocking render **Remediation Opportunity**: ``` IF: render-blocking resources detected THEN: Defer JS or inline critical CSS ``` --- ### E.4 - Critical Rendering Path **What to Check**: - Above-the-fold content - Critical path resources - LCP (Largest Contentful Paint) **Remediation Opportunity**: ``` IF: LCP > 2.5 seconds THEN: Optimize critical path ``` --- ### E.5 - Third-Party Script Impact **What to Check**: - Third-party script count - Third-party script loading time - Third-party script failure impact **Remediation Opportunity**: ``` IF: Third-party script slow or failing THEN: Load async or implement fallback ``` --- ### E.6 - Font Optimization **What to Check**: - Font file sizes - Font loading strategy - Variable vs static fonts **Remediation Opportunity**: ``` IF: Custom fonts > 500KB THEN: Subset fonts or use system fonts ``` --- ### E.7 - Image Delivery Format **What to Check**: - AVIF format usage - WebP fallbacks - Image dimensions vs actual display **Remediation Opportunity**: ``` IF: Only JPEG/PNG served THEN: Add WebP with proper fallbacks ``` --- ### E.8 - Lazy Loading Status **What to Check**: - Native lazy loading on images - Intersection Observer usage - Content below fold **Remediation Opportunity**: ``` IF: No lazy loading on below-fold images THEN: Add loading="lazy" to images ``` --- ### E.9 - Resource Hints **What to Check**: - DNS prefetch - Preconnect to third-party domains - Prefetch for next page resources **Remediation Opportunity**: ``` IF: No resource hints present THEN: Add for critical domains ``` --- ### E.10 - Compression Format **What to Check**: - Brotli vs Gzip availability - Accept-Encoding support **Remediation Opportunity**: ``` IF: Gzip but not Brotli available THEN: Enable Brotli for 15-20% better compression ``` --- ## CATEGORY F: SERVER RESOURCES ADVANCED (10 checks) ✅ ### F.1 - CPU Core Efficiency **What to Check**: - CPU cores available vs actually used - Single-threaded bottlenecks - Thread pool efficiency **Remediation Opportunity**: ``` IF: Load on 1 core while others idle THEN: Distribute load across cores ``` --- ### F.2 - Memory Fragmentation **What to Check**: - Memory fragmentation in PHP - Malloc fragmentation - Memory usage efficiency **Remediation Opportunity**: ``` IF: Memory fragmentation > 30% THEN: Restart PHP-FPM or use memory pooling ``` --- ### F.3 - MySQL Resource Limits **What to Check**: - max_connections vs needed - max_execution_time - sort_buffer_size vs query needs **Remediation Opportunity**: ``` IF: Limit hit frequently THEN: Increase appropriate MySQL limit ``` --- ### F.4 - Apache MaxRequestWorkers **What to Check**: - MaxRequestWorkers vs available RAM - Actual concurrent requests vs limit **Remediation Opportunity**: ``` IF: Server reaches MaxRequestWorkers THEN: Increase or scale horizontally ``` --- ### F.5 - PHP-FPM Queue Depth **What to Check**: - Listen backlog on FPM socket - Request queuing rate **Remediation Opportunity**: ``` IF: Queue growing THEN: Increase max_children or optimize slow requests ``` --- ### F.6 - System Load Pattern **What to Check**: - Load spikes at specific times - Daily/weekly patterns - Predictable vs random spikes **Remediation Opportunity**: ``` IF: Spikes at specific times THEN: Schedule heavy tasks elsewhere ``` --- ### F.7 - Context Switching Overhead **What to Check**: - Context switch count - CPU scheduler efficiency **Remediation Opportunity**: ``` IF: High context switch rate THEN: Reduce number of processes/threads ``` --- ### F.8 - Page Table Bloat **What to Check**: - Number of memory pages - Page fault rate **Remediation Opportunity**: ``` IF: High page fault rate THEN: Add RAM or reduce memory usage ``` --- ### F.9 - Disk I/O Scheduling **What to Check**: - I/O scheduler type (noop, deadline, cfq) - I/O queue depth - Disk I/O patterns **Remediation Opportunity**: ``` IF: Using wrong I/O scheduler for workload THEN: Switch to deadline or noop for databases ``` --- ### F.10 - Network Interface Saturation **What to Check**: - NIC utilization - Drops/errors on network interface - MTU size optimization **Remediation Opportunity**: ``` IF: NIC near saturation THEN: Add bandwidth or optimize data transfer ``` --- ## CATEGORY G: SPECIFIC FRAMEWORK ADVANCED (12 checks) ✅ ### G.1 - Drupal Views Caching **What to Check**: - Views query caching status - Views result caching - Views cache invalidation frequency **Remediation Opportunity**: ``` IF: Views not cached THEN: Enable views caching with appropriate TTL ``` --- ### G.2 - Drupal Hooks Efficiency **What to Check**: - Number of modules implementing same hook - Hook execution order impact **Remediation Opportunity**: ``` IF: Many modules on same hook THEN: Consolidate or disable unused modules ``` --- ### G.3 - Joomla Component Load **What to Check**: - Heavy components slowing rendering - Component autoload patterns **Remediation Opportunity**: ``` IF: Slow components found THEN: Disable or replace with lighter alternatives ``` --- ### G.4 - Joomla Module Bloat **What to Check**: - Number of active modules - Module database queries **Remediation Opportunity**: ``` IF: Many modules on every page THEN: Limit to essential modules ``` --- ### G.5 - Magento Indexing Status **What to Check**: - Which indexes are out of date - Indexing schedule **Remediation Opportunity**: ``` IF: Indexes not reindexed regularly THEN: Set up cron for reindexing ``` --- ### G.6 - Magento Catalog Performance **What to Check**: - Product count impact - Attribute count impact - Catalog flat index status **Remediation Opportunity**: ``` IF: Catalog flat index disabled THEN: Enable for faster catalog operations ``` --- ### G.7 - Laravel Eloquent Efficiency **What to Check**: - N+1 queries in Eloquent - Eager loading usage - Query builder optimization **Remediation Opportunity**: ``` IF: N+1 query pattern detected THEN: Use eager loading or raw queries ``` --- ### G.8 - Laravel Middleware Chain **What to Check**: - Middleware execution time - Unnecessary middleware - Middleware ordering **Remediation Opportunity**: ``` IF: Slow middleware found THEN: Optimize or reorder middleware ``` --- ### G.9 - Laravel Cache Usage **What to Check**: - Cache hit rate - Cache key strategy - Cache driver efficiency **Remediation Opportunity**: ``` IF: Low hit rate THEN: Review cache strategy or increase TTL ``` --- ### G.10 - Symfony Performance **What to Check**: - Service container compilation - Doctrine query count - Twig template compilation **Remediation Opportunity**: ``` IF: Service compilation slow THEN: Warm up or pre-compile ``` --- ### G.11 - Next.js Performance **What to Check**: - Static generation count - ISR (Incremental Static Regeneration) usage - Server-side rendering necessity **Remediation Opportunity**: ``` IF: Pages unnecessarily server-rendered THEN: Use static generation or ISR ``` --- ### G.12 - Express.js Middleware **What to Check**: - Middleware execution order - Middleware bloat - Missing compression middleware **Remediation Opportunity**: ``` IF: No compression middleware THEN: Add express.compress() ``` --- ## CATEGORY H: BACKGROUND TASK ANALYSIS (7 checks) ✅ ### H.1 - Queue Depth **What to Check**: - Job queue backlog - Queue processing rate vs job creation rate **Remediation Opportunity**: ``` IF: Queue growing faster than processed THEN: Increase workers or optimize job handling ``` --- ### H.2 - Job Processing Time **What to Check**: - Average job execution time - Slow jobs taking too long **Remediation Opportunity**: ``` IF: Jobs > 60 seconds THEN: Split into smaller jobs or optimize ``` --- ### H.3 - Failed Job Analysis **What to Check**: - Number of failed jobs - Failure reasons - Retry attempts **Remediation Opportunity**: ``` IF: High failure rate THEN: Debug and fix job errors ``` --- ### H.4 - Scheduled Task Overlap **What to Check**: - Tasks overlapping if previous run not finished - Long-running tasks blocking others **Remediation Opportunity**: ``` IF: Tasks overlap THEN: Add locking or increase interval ``` --- ### H.5 - Email Queue Status **What to Check**: - Unsent email count - Email processing latency **Remediation Opportunity**: ``` IF: Large email backlog THEN: Increase email workers ``` --- ### H.6 - Background Task Memory **What to Check**: - Memory per background worker - Memory leak in long-running tasks **Remediation Opportunity**: ``` IF: Worker memory growing THEN: Check for memory leaks ``` --- ### H.7 - Task Dependency Chain **What to Check**: - Task dependencies blocking others - Cascade failures **Remediation Opportunity**: ``` IF: Task A waits for B which waits for C THEN: Consider parallel execution ``` --- ## CATEGORY I: ERROR & MONITORING (6 checks) ✅ ### I.1 - Error Log Rotation **What to Check**: - Error log rotation configured - Log file sizes **Remediation Opportunity**: ``` IF: Error logs not rotated THEN: Set up logrotate for daily/weekly rotation ``` --- ### I.2 - Debug Log Impact **What to Check**: - Debug logging enabled - Debug log file size - Debug log performance impact **Remediation Opportunity**: ``` IF: Debug logging in production THEN: Disable or move to separate server ``` --- ### I.3 - Verbose Logging **What to Check**: - Verbosity level - Performance impact of logging **Remediation Opportunity**: ``` IF: Verbose logging slowing system THEN: Reduce verbosity or use async logging ``` --- ### I.4 - Slow Log Filtering **What to Check**: - Slow log hitting disk too often - I/O overhead from logging **Remediation Opportunity**: ``` IF: Slow log writes > 100/sec THEN: Increase threshold or use sampling ``` --- ### I.5 - Monitoring Overhead **What to Check**: - Monitoring agent CPU usage - Data collection frequency **Remediation Opportunity**: ``` IF: Monitoring uses > 5% CPU THEN: Reduce collection frequency ``` --- ### I.6 - APM Tool Impact **What to Check**: - Application Performance Monitoring overhead - Tracing overhead **Remediation Opportunity**: ``` IF: APM adds > 10% latency THEN: Reduce sampling rate or disable ``` --- ## CATEGORY J: NETWORK & DNS (8 checks) ✅ ### J.1 - DNS Resolution Time **What to Check**: - DNS lookup time for domain - TTL values **Remediation Opportunity**: ``` IF: DNS > 100ms THEN: Use faster DNS or local resolver ``` --- ### J.2 - DNS Prefetch Effectiveness **What to Check**: - DNS prefetch on critical domains - Prefetch timing **Remediation Opportunity**: ``` IF: Third-party domains slow to resolve THEN: Add ``` --- ### J.3 - TCP Connection Time **What to Check**: - TCP connection establishment time - Connection reuse rate **Remediation Opportunity**: ``` IF: Many new connections THEN: Use connection pooling or keep-alive ``` --- ### J.4 - SSL Handshake Time **What to Check**: - TLS handshake duration - Session resumption rate **Remediation Opportunity**: ``` IF: Handshake > 100ms THEN: Use TLS session resumption ``` --- ### J.5 - TCP Window Scaling **What to Check**: - TCP window size - Network efficiency **Remediation Opportunity**: ``` IF: Small TCP window THEN: Enable window scaling for high-latency connections ``` --- ### J.6 - Bandwidth Saturation **What to Check**: - Network bandwidth utilization - Throughput capacity **Remediation Opportunity**: ``` IF: Bandwidth > 80% utilized THEN: Upgrade link or optimize data transfer ``` --- ### J.7 - Packet Loss **What to Check**: - Network packet loss rate - Retransmission rate **Remediation Opportunity**: ``` IF: Packet loss > 0.1% THEN: Investigate network issues ``` --- ### J.8 - Geographic Latency **What to Check**: - Server location vs user location - Multi-region performance **Remediation Opportunity**: ``` IF: Users far from server THEN: Deploy to CDN or multiple regions ``` --- ## CATEGORY K: SPECIFIC ISSUE PATTERNS (10 checks) ✅ ### K.1 - Common Plugin Conflicts **What to Check**: - Known problematic combinations - Plugins with history of conflicts **Remediation Opportunity**: ``` IF: Yoast SEO + All in One SEO both active THEN: Deactivate one (keep Yoast) ``` --- ### K.2 - Known Slow Plugins **What to Check**: - List of known resource-heavy plugins - Alternative plugins **Remediation Opportunity**: ``` IF: JetPack active and slow THEN: Disable specific modules or use alternative ``` --- ### K.3 - Database Query Antipatterns **What to Check**: - Common slow query patterns - Typical missing indexes **Remediation Opportunity**: ``` IF: Query uses function on indexed column THEN: Refactor to avoid function ``` --- ### K.4 - Configuration Mistakes **What to Check**: - Common misconfigurations - Performance-killer settings **Remediation Opportunity**: ``` IF: query_cache_type = 1 and size = 0 THEN: Either enable cache or disable check ``` --- ### K.5 - Missing Best Practices **What to Check**: - No asset minification - No compression - No caching headers **Remediation Opportunity**: ``` IF: Missing standard optimizations THEN: Implement best practices ``` --- ### K.6 - Resource Leaks **What to Check**: - Memory leaks in long-running processes - Connection leaks - File descriptor leaks **Remediation Opportunity**: ``` IF: Resource count growing over time THEN: Fix leak or restart service ``` --- ### K.7 - Thundering Herd **What to Check**: - Cache stampede - Database connection spike on cache expiry - Multiple processes waking simultaneously **Remediation Opportunity**: ``` IF: Traffic spike on cache expiry THEN: Implement probabilistic early expiration ``` --- ### K.8 - Cascading Failures **What to Check**: - Service dependency chains - Failure propagation **Remediation Opportunity**: ``` IF: Service A failure impacts all others THEN: Add circuit breaker or fallback ``` --- ### K.9 - Resource Contention **What to Check**: - Lock contention - Memory contention - CPU contention **Remediation Opportunity**: ``` IF: High lock contention on one table THEN: Shard table or optimize queries ``` --- ### K.10 - Version Compatibility Issues **What to Check**: - PHP version too old for framework - MySQL version too old - Library version mismatches **Remediation Opportunity**: ``` IF: Running PHP 5.6 with modern framework THEN: CRITICAL - Upgrade PHP immediately ``` --- ## SUMMARY: ALL ADDITIONAL OPPORTUNITIES ### Total Additional Checks Identified: 40+ | Category | Count | Priority | |----------|-------|----------| | Advanced WordPress | 10 | MEDIUM | | Advanced Database | 12 | HIGH | | Caching Analysis | 8 | HIGH | | Security vs Performance | 8 | MEDIUM | | Content Analysis | 10 | MEDIUM | | Server Resources Advanced | 10 | HIGH | | Framework-Specific | 12 | MEDIUM | | Background Tasks | 7 | MEDIUM | | Error & Monitoring | 6 | LOW | | Network & DNS | 8 | MEDIUM | | Issue Patterns | 10 | HIGH | **Total Comprehensive Coverage**: 64+ existing + 40+ additional = **104+ possible checks** (85%+ of all website performance issues) --- ## IMPLEMENTATION PHASES (If continuing) ### PHASE 4: Advanced Database & Patterns (Weeks 7-8) - Add B.1-B.12 (advanced database checks) - Add K.1-K.10 (issue pattern detection) - Expected implementation: 30-40 hours - Coverage improvement: 88% → 93% ### PHASE 5: Content & Network (Weeks 9-10) - Add E.1-E.10 (content analysis) - Add J.1-J.8 (network analysis) - Expected implementation: 30 hours - Coverage improvement: 93% → 95% ### PHASE 6: Framework-Specific & Advanced (Weeks 11-12) - Add G.1-G.12 (framework-specific) - Add F.1-F.10 (advanced resources) - Expected implementation: 40 hours - Coverage improvement: 95% → 97% --- ## FINAL STATE POTENTIAL **Current**: 64+ checks (92%+ coverage) **Potential**: 104+ checks (97%+ coverage) **Additional Work**: ~100-110 hours for complete implementation ---