Fix: Server Response (TTFB)

2-4 hr Impact: high Effort: medium ✓ Scan-verified — no manual checkbox

Time To First Byte measures how long the server takes to start responding at all, before the browser has downloaded a single byte of your page content — a slow TTFB means every other performance metric is starting from a bad position, no matter how well-optimized your front-end is.

Time To First Byte is how fast your server responds before anything loads. Google flags anything over 600ms. A slow server cancels out every other optimization.

How to fix it

1

Identify what's actually slow

A slow TTFB is usually server processing time, database queries, or a slow hosting tier — not a front-end issue at all.
2

Add or improve server-side caching

If your site generates pages dynamically (WordPress, a custom backend), a page cache that serves pre-built HTML for repeat visitors dramatically cuts TTFB.
3

Check your hosting tier

Shared/budget hosting is the most common root cause — if caching alone doesn't fix it, the server itself may be under-provisioned for your traffic.
4

Use a CDN

Serving cached content from a location physically closer to each visitor cuts network latency, which is part of what TTFB measures.

Common mistakes

TTFB problems get blamed on 'slow images' or 'too many scripts' when the real cause is server response time — check TTFB specifically before spending time optimizing the front-end.

How you'll know it's done

Time To First Byte is consistently under 600ms for your key pages.

Tools that help

WebPageTest ↗

Breaks down exactly where time is spent, including a clear TTFB measurement.

H.I.V.E. checks this automatically

Fix it, then re-scan — the check confirms itself. No manual checkbox, the scan is the truth.

Run this check in H.I.V.E. →