Glossary guide

Time to First Byte (TTFB)

Performance · Migration glossary

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Definition

TTFB measures server response time before content bytes arrive. High TTFB slows all downstream metrics.

Why it matters during migration

Managed WordPress hosting in EU data centres improves TTFB for European audiences.

How To WP applies this

Our audits and delivery playbooks reference time to first byte (ttfb) when scoping redirects, QA, and launch monitoring — especially for Performance workstreams.

Frequently asked questions

Everything you need to know before starting your migration.

Is Time to First Byte (TTFB) relevant to my Performance migration?

If your project touches URLs, metadata, performance, or compliance, it almost certainly is. Request a free audit for site-specific guidance.

Where can I learn more?

Browse our migration guides and country playbooks, or contact us for a tailored checklist.

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