⚡ REAL-TIME PERFORMANCE INTELLIGENCE

Measure TTFB from 8 Global Locations

Perform a real-time Time to First Byte (TTFB) test across 8 global locations. Measure origin server response speed, HTTP status codes, and CDN cache status in one click.

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US East (– ms) US West (– ms) UK (– ms) Germany (– ms) Japan (– ms) Singapore (– ms) Brazil (– ms) Australia (– ms)
GLOBAL AVERAGE TTFB
— ms
TESTED REGIONS
8 Regions

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TTFB Rating Scale Threshold
Under 180 ms Excellent
180 – 350 ms Good
350 – 500 ms Average
500 – 750 ms Below Average
Over 750 ms Poor
HTTP Status Codes Category
2xx Success 200 OK
3xx Redirect 301 / 302
4xx Client Error 404 Not Found
5xx Server Error 500 / 502 / 504
CDN Cache Header Status
Edge Cache Hit HIT
Cache Miss MISS
Dynamic Uncached DYNAMIC

Looking to fix high server response times? Read our engineering guide on How to Reduce Initial Server Response Time in WordPress or explore OptiWave plans.

What is Time to First Byte (TTFB)?

Time to First Byte (TTFB) is a foundational Web Vitals performance metric that measures the duration from when a browser requests a web page to when the first byte of data is received from the server. TTFB includes DNS lookup time, TCP connection setup, TLS handshake, and initial server processing latency.

Why Fast TTFB Matters for SEO and Core Web Vitals

Google uses TTFB as an indirect signal for overall site quality. A slow server response directly delays Largest Contentful Paint (LCP) and increases visitor bounce rates. When your server takes longer than 500ms to respond, visitors on mobile networks experience noticeable lag, hurting user engagement and conversion rates.

How OptiWave Delivers 1ms TTFB in WordPress

Traditional WordPress sites execute heavy PHP scripts and database queries for every page request. OptiWave replaces this overhead by serving pre-compressed static HTML files directly from server storage in 1ms. Read our technical guide on reducing initial server response time in WordPress or explore OptiWave plans to get started.

What is the ideal TTFB for a website?

Google recommends a Time to First Byte (TTFB) under 200ms. An ideal TTFB for cached pages is under 100ms globally to satisfy Core Web Vitals guidelines.

Why is my TTFB slow in remote regions?

Slow TTFB in remote geographic locations is caused by physical network distance latency and unoptimized origin server PHP processing. Delivering static page cache from edge servers resolves remote latency.

How does OptiWave improve TTFB without breaking WooCommerce?

OptiWave uses Layer 1 server-level rewrite rules to serve pre-compressed static HTML in 1ms for standard pages while automatically bypassing cache for shopping carts, checkout screens, and user account sessions.