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cschantz bd64b2ed0d Add comprehensive list of 40+ additional check opportunities

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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Out-of-date plugins with updates available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

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 <head> 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 <link rel="preconnect"> 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 <link rel="dns-prefetch">

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

26 KiB Raw Permalink Blame History

Additional Check Opportunities

Comprehensive Analysis of Remaining Performance Checks

CATEGORY A: ADVANCED WORDPRESS CHECKS (10 checks) ✅

A.1 - Gutenberg Block Performance

A.2 - WP Query Efficiency

A.3 - Post Type Performance

A.4 - Taxonomy Bloat

A.5 - Duplicate Plugin Functionality

A.6 - Plugin Version Compatibility

A.7 - Theme Code Quality

A.8 - Widget Analysis

A.9 - Custom Post Meta Analysis

A.10 - Attachment Optimization

CATEGORY B: ADVANCED DATABASE CHECKS (12 checks) ✅

B.1 - EXPLAIN PLAN Analysis

B.2 - Orphaned Tables

B.3 - NULL Column Analysis

B.4 - Character Set Consistency

B.5 - Replication Lag Detection

B.6 - Table Statistics Freshness

B.7 - Connection Pool Analysis

B.8 - Lock Wait Detection

B.9 - Query Cache Hit Rate

B.10 - Deadlock Detection

B.11 - Slave Lag in Replication

B.12 - Query Parse Time

CATEGORY C: CACHING LAYER ANALYSIS (8 checks) ✅

C.1 - Cache-Control Headers

C.2 - ETag Configuration

C.3 - Browser Cache Effectiveness

C.4 - Object Cache Hit Rate

C.5 - Cache Key Collisions

C.6 - Cache Stampede Detection

C.7 - CDN Cache Headers

C.8 - Stale Content Serving

CATEGORY D: SECURITY VS PERFORMANCE (8 checks) ✅

D.1 - SSL Certificate Chain Depth

D.2 - HSTS Headers

D.3 - CSP Header Impact

D.4 - CORS Policy

D.5 - WAF Rule Performance

D.6 - Rate Limiting Config

D.7 - Bot Detection Overhead

D.8 - Password Strength Requirements

CATEGORY E: CONTENT ANALYSIS (10 checks) ✅

E.1 - JavaScript Bloat

E.2 - CSS Bloat

E.3 - Render-Blocking Resources

E.4 - Critical Rendering Path

E.5 - Third-Party Script Impact

E.6 - Font Optimization

E.7 - Image Delivery Format

E.8 - Lazy Loading Status

E.9 - Resource Hints

E.10 - Compression Format

CATEGORY F: SERVER RESOURCES ADVANCED (10 checks) ✅

F.1 - CPU Core Efficiency

F.2 - Memory Fragmentation

F.3 - MySQL Resource Limits

F.4 - Apache MaxRequestWorkers

F.5 - PHP-FPM Queue Depth

F.6 - System Load Pattern

F.7 - Context Switching Overhead

F.8 - Page Table Bloat

F.9 - Disk I/O Scheduling

F.10 - Network Interface Saturation

CATEGORY G: SPECIFIC FRAMEWORK ADVANCED (12 checks) ✅

G.1 - Drupal Views Caching

G.2 - Drupal Hooks Efficiency

G.3 - Joomla Component Load

G.4 - Joomla Module Bloat

G.5 - Magento Indexing Status

G.6 - Magento Catalog Performance

G.7 - Laravel Eloquent Efficiency

G.8 - Laravel Middleware Chain

G.9 - Laravel Cache Usage

G.10 - Symfony Performance

G.11 - Next.js Performance

G.12 - Express.js Middleware

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