--- title: "Blog and News | Speedscale" description: "Latest insights on API testing, performance optimization, and software development best practices from the Speedscale team." canonical: "https://speedscale.com/blog/" --- # Speedscale Blog Latest insights on Agentic AI workflows, cloud native architectures, and performance optimization best practices from the Speedscale team. ## Featured Post [![Traffic Replay Tutorial: Capture, Replay, Read Results](https://speedscale.com/_astro/featured-image.BVUGJ9m5_Z1jvUjE.webp)](https://speedscale.com/blog/traffic-replay-tutorial/) Updated October 9, 2026 ### [Traffic Replay Tutorial: Capture, Replay, Read Results](https://speedscale.com/blog/traffic-replay-tutorial/) Capture one service's API traffic, replay it against a Kubernetes test workload, and use the report to tell a regression from a replay setup problem. [API Testing](https://speedscale.com/blog/category/api-testing/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [by Speedscale Team](https://speedscale.com/blog/author/speedscale-team/) ## Recent Posts [![Holiday readiness: run your first load test with skills](https://speedscale.com/_astro/load-test-result.p3PABOMt_uMuku.webp)](https://speedscale.com/blog/holiday-readiness-proxymock-skills/) October 6, 2026 ### [Holiday readiness: run your first load test with skills](https://speedscale.com/blog/holiday-readiness-proxymock-skills/) Start holiday readiness with a local proxymock load test. Use agent skills to record a Node app, mock its API dependency, and inspect the results. [Performance testing](https://speedscale.com/blog/category/performance-testing/) [Developer tools](https://speedscale.com/blog/category/developer-tools/) [by Ken Ahrens](https://speedscale.com/blog/author/ken-ahrens/) [![Load Test PostgreSQL Instantly using Production Recordings](https://speedscale.com/_astro/featured-image.DGDxScsc_Z1cwP9o.webp)](https://speedscale.com/blog/load-test-postgresql-production-recordings/) October 5, 2026 ### [Load Test PostgreSQL Instantly using Production Recordings](https://speedscale.com/blog/load-test-postgresql-production-recordings/) Record the queries your app sends to PostgreSQL in Kubernetes, then replay them against a QA database as a load and regression test. No scripts to write. [Kubernetes](https://speedscale.com/blog/category/kubernetes/) [Load testing](https://speedscale.com/blog/category/load-testing/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![How We Rebuilt GitLab CI on GKE Spot VMs](https://speedscale.com/_astro/featured-image.Yj38EbKH_ZkxAu5.webp)](https://speedscale.com/blog/rebuilding-gitlab-ci-on-gke/) October 1, 2026 ### [How We Rebuilt GitLab CI on GKE Spot VMs](https://speedscale.com/blog/rebuilding-gitlab-ci-on-gke/) How we moved GitLab CI to GKE with shared BuildKit caching, multiple Spot machine types, and an on-demand fallback for scarce capacity. [DevOps](https://speedscale.com/blog/category/devops/) [Kubernetes](https://speedscale.com/blog/category/kubernetes/) [by Shaun Duncan](https://speedscale.com/blog/author/shaun-duncan/) [![Test Your MySQL 8.4 Upgrade With Real App Queries](https://speedscale.com/_astro/featured-image.CHm1I__d_2wbnrB.webp)](https://speedscale.com/blog/mysql-load-regression-testing-real-queries/) September 25, 2026 ### [Test Your MySQL 8.4 Upgrade With Real App Queries](https://speedscale.com/blog/mysql-load-regression-testing-real-queries/) Replay your app's recorded MySQL statements against 8.4 to catch upgrade regressions, then load test the database with the same workload using proxymock. [Performance testing](https://speedscale.com/blog/category/performance-testing/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [Developer tools](https://speedscale.com/blog/category/developer-tools/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![$4.48 a Gallon: Your Holiday Checkout Is the New Mall](https://speedscale.com/_astro/fewer-trips-bigger-carts.CYc6nSpa_wNL9v.webp)](https://speedscale.com/blog/holiday-checkout-is-the-new-mall/) September 24, 2026 ### [$4.48 a Gallon: Your Holiday Checkout Is the New Mall](https://speedscale.com/blog/holiday-checkout-is-the-new-mall/) Prepare your checkout for Black Friday with production traffic replay, peak-load tests, and partner API failure rehearsals before the holiday code freeze. [Performance testing](https://speedscale.com/blog/category/performance-testing/) [Load testing](https://speedscale.com/blog/category/load-testing/) [by Alan Mon](https://speedscale.com/blog/author/alan-mon/) [![Test PostgreSQL With the Queries Your App Actually Runs](https://speedscale.com/_astro/featured-image.BFaUVvHc_1mQmcW.webp)](https://speedscale.com/blog/postgres-load-regression-testing-real-queries/) September 24, 2026 ### [Test PostgreSQL With the Queries Your App Actually Runs](https://speedscale.com/blog/postgres-load-regression-testing-real-queries/) Replay recorded PostgreSQL queries to catch schema regressions and run realistic database load tests with proxymock, using the CLI or an AI assistant. [Performance testing](https://speedscale.com/blog/category/performance-testing/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [Developer tools](https://speedscale.com/blog/category/developer-tools/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![Team-Based DLP: Give Each Group Its Own Redaction Rules](https://speedscale.com/_astro/featured-image.D71Ji1-z_2b5hc6.webp)](https://speedscale.com/blog/team-based-dlp-group-rules/) September 18, 2026 ### [Team-Based DLP: Give Each Group Its Own Redaction Rules](https://speedscale.com/blog/team-based-dlp-group-rules/) One forwarder, many teams, one DLP rule nobody wants to touch. Scoped group rules let each team own its redaction. How-to for proxymock web and Speedscale. [Security](https://speedscale.com/blog/category/security/) [Kubernetes](https://speedscale.com/blog/category/kubernetes/) [DevOps](https://speedscale.com/blog/category/devops/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![Use AI and traffic replay to test AI-generated code](https://speedscale.com/_astro/hero.7DRmVYlW_24NNTV.webp)](https://speedscale.com/blog/test-ai-code-with-traffic-replay/) September 15, 2026 ### [Use AI and traffic replay to test AI-generated code](https://speedscale.com/blog/test-ai-code-with-traffic-replay/) Have your coding agent test AI-generated code with proxymock: capture working API traffic, replay it against changes, and inspect the results. [API testing](https://speedscale.com/blog/category/api-testing/) [Developer tools](https://speedscale.com/blog/category/developer-tools/) [AI/ML](https://speedscale.com/blog/category/ai/ml/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [by Ken Ahrens](https://speedscale.com/blog/author/ken-ahrens/) [![eBPF: Correlating rustls Plaintext to TCP Connections Without a File Descriptor](https://speedscale.com/_astro/featured-image.BGElMnA8_1GJpnM.webp)](https://speedscale.com/blog/ebpf-rustls-plaintext-tcp-correlation/) September 14, 2026 ### [eBPF: Correlating rustls Plaintext to TCP Connections Without a File Descriptor](https://speedscale.com/blog/ebpf-rustls-plaintext-tcp-correlation/) Follow an eBPF debugging trail through rustls, Tokio inlining, and an empty map to learn how TLS plaintext gets matched to the right TCP connection. [Developer tools](https://speedscale.com/blog/category/developer-tools/) [Observability](https://speedscale.com/blog/category/observability/) [by Shaun Duncan](https://speedscale.com/blog/author/shaun-duncan/)