Optimizing Cloudflare Cache Reserve & Tiered Cache to Protect Origins
How to maintain a 98%+ edge cache hit ratio on large e-commerce catalogs and eliminate origin server crawl spikes from search engine bots.
📂 Topic Hub • 6 Runbooks
Server TTFB Runbooks
Practical engineering runbooks, terminal benchmarks, and code fixes categorized under Server TTFB.
7 min read
Debugging 504 Gateway Timeouts During Traffic Spikes: Nginx FastCGI & MySQL Pooling
How an unindexed wp_postmeta query triggered cascading PHP-FPM process lockups and 504 Gateway Timeouts under 300 concurrent users, and how buffer tuning and composite indexes stabilized the server at 12% CPU.
Diagnosing Unindexed Slow Queries in MySQL 8.0 with EXPLAIN ANALYZE
How to pinpoint hidden table scans, missing composite indexes, and temporary table creation choking origin server throughput on high-traffic databases.
6 min read
Resolving 301 Redirect Loops and Canonical Traps on Cloudflare Edge
How conflicting Flexible SSL settings, origin .htaccess rules, and trailing slash mismatches caused 4,000 indexing drops in Google Search Console, and how we resolved the edge handshake in 30 minutes.
6 min read
Fixing Redis Object Cache Bottlenecks & High Latency on WordPress
A forensic guide to resolving Redis connection timeouts, transient locking contention, and memory exhaustion that slow down WooCommerce checkouts.
Fixing TTFB > 2.5s on High-Traffic LiteSpeed Servers: Root Cause & Implementation
A forensic teardown of why a UK e-commerce store suffered 2,800ms server response times despite paying for premium hosting, and how a 3-step configuration surgical fix brought it down to 42ms.