What is TTFB by browser auto-translate
TTFB by browser auto-translate shows how Time to First Byte (TTFB) varies depending on whether the browser automatically translated the page.
Unlike LCP or INP, TTFB isn’t typically affected by browser translation directly — but translation often happens on pages served in a foreign language, which may be hosted in regions farther from the user.
Healthy TTFB by browser auto-translate sample
Should you worry
In a healthy setup:
TTFB is fast and stable for both translated and non-translated visits
Your CDN or edge network is delivering pages close to the user’s location
There’s no delay caused by locale-specific redirects or server-side content negotiation
This suggests your infrastructure and geographic routing are well-optimized for international audiences.
Unhealthy TTFB by browser auto-translate sample
If translated TTFB is slower:
It could be due to additional redirects to localized versions before translation triggers
You might be missing an edge cache for translated content or country-specific routes
Language detection logic or server-side locale matching could be slowing things down
If non-translated TTFB is worse:
Your default origin might be slow for key markets
Users seeing the default language may be far from the origin or edge node
Resolving unhealthy TTFB by browser auto-translate
Go-to action plan to resolve an unhealthy TTFB by browser auto-translate:
Ask Uxi to analyze your TTFB by browser auto-translate values and suggest improvements.
Use Filters to isolate specific geos or languages experiencing slowness.
Simulate TTFB of the suspected insight to see if fixing it will resolve the TTFB by browser auto-translate. If yes, this is where the resolution focus should be.
Use an automated optimization tool like Navigation AI to improve your TTFB by browser auto-translate values.
Once you’ve improved TTFB, set an alert to be the first to know if it starts worsening again.
Try it yourself
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