Hey folks, keeping this on-topic please. OP had a rough Black Friday and needs actionable advice, not pile-ons.
My girlfriend's handmade jewelry site (hosting: $5 droplet on RackNerd, 1GB RAM, shared CPU) got a surprise feature on some influencer's story. Traffic went 10x, MySQL got OOM-killed, site down for 6 hours during peak sales. She's upgrading the droplet but I'm wondering what else we should be doing before next spike.
Currently: WordPress + WooCommerce, no caching plugin, default MySQL config. Considering Redis but never set it up. Temporary CDN credits would be amazing if anyone's feeling generous.