Back to Insights
Performance9 min read

How We Reduced TTFB Below 200ms Across Systems

Marcus Aurel, Optimization Lead
May 5, 2026
Metrics: <150ms Average TTFB

What is TTFB and Why It Matters

Time-To-First-Byte (TTFB) is the foundation of digital performance. It measures the duration between a user making an HTTP request and their browser receiving the very first byte of content from the server. If your TTFB is slow, every subsequent rendering metric—LCP, FCP, and interactive speed—is delayed by that exact amount. A slow TTFB ruins the user experience before a single pixel is painted on the screen.

Despite its importance, average enterprise platforms exhibit TTFB metrics exceeding 800ms. This delay is caused by excessive server-side computation, complex multi-tenant database lookup chains, and geographical distance between the user and the origin server.

Deconstructing the Infrastructure Problem

Traditional server architectures route every single request through a central database. Consider an e-commerce store: when a customer in Tokyo opens the page, their request travels across undersea cables to a database server in North Virginia. The server queries the database, serializes the response, compiles the HTML, and sends it back to Tokyo. This trip alone introduces 300ms of inevitable network latency, not including database query times.

The Edge Deployment Strategy

To reduce TTFB below the 200ms threshold, we completely redesigned the routing path. We replaced central origin routing with a global micro-edge network. Our static page layouts are pre-compiled and cached on serverless edge memory buffers located in dozens of geographic regions.

When the user in Tokyo requests the page, the closest edge node responds immediately with the cached, statically compiled HTML structure. The entire round trip is completed in less than 30ms.

For dynamic data payloads, we implemented decentralized read-replica databases and optimized API response serialization to guarantee that server-side processing is completed in less than 10ms.

Key Takeaways

  • Network latency makes central database routing incompatible with modern performance baselines.
  • Deploying pre-compiled static files to geographic edge nodes resolves latency bottlenecks.
  • Sub-200ms TTFB is achievable only by removing dynamic computation from the primary entry route.
    • Key Engineering Takeaways
    Replaced North Virginia central databases with 5 regional replicas.
    Pre-compiled all static page layouts to serve directly from memory buffers.
    Reduced global round-trip latency to sub-30ms at edge entry gates.
    READY TO DEPLOY

    Build a System
    of This Caliber.

    We partner with industry-leading firms to design robust, ultra-fast compiled software architectures engineered for absolute long-term scaling success.

    Start Infrastructure Layouts