Performance Benchmarks

Real performance, measured and published

We don't hide behind vague promises. Here are the actual numbers from our production infrastructure.

Test Environment

demo.unionstack.dev

A real WordPress site with 12 active plugins, WooCommerce, 129 media files, and realistic content.

Active Plugins

Yoast SEO, WooCommerce, Elementor, Jetpack, Contact Form 7, WP Super Cache, Akismet, Wordfence, MonsterInsights, UpdraftPlus, WP Mail SMTP, Classic Editor

Infrastructure Stack

Kubernetes (k3s), Bitpoke WordPress Operator, Hetzner Cloud, Traefik, Let's Encrypt

Load Test Results

TTFB Under Load

k6 load test, 100 concurrent users, 7 minutes sustained traffic.

P50 (Median)
122ms
P95
602ms
P99
745ms
Error Rate
0.00%
14,570
Total Requests
100
Concurrent Users
7 min
Test Duration
Core Web Vitals

Lighthouse CI Scores

4 pages, 3 runs each, desktop mode.

Performance Score
98
Largest Contentful Paint
1.4s
Cumulative Layout Shift
0.01
Total Blocking Time
120ms
Methodology

How we test

k6 Load Testing

Load testing with k6 (Grafana), open-source load testing tool. 100 virtual users, ramping up over 1 minute, sustained for 7 minutes.

Lighthouse CI

Lighthouse CI running in Docker, desktop mode, 3 runs per page, median scores reported.

Tests run February 2026. Results updated periodically.

See these numbers on your own site

Deploy a WordPress site on UnionStack and experience the performance difference.

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