What is TTFB with adblocker on/off
TTFB with adblocker on/off breaks down Time to First Byte (TTFB) segmented by ad blocker usage. While TTFB is mostly backend-driven, it can still vary based on how the frontend behaves with or without ads — especially if ad logic triggers early network requests or conditional routing.
For example, some sites defer or accelerate content delivery depending on ad inventory, cookies, or user consent, which can indirectly affect TTFB.
Healthy TTFB with adblocker on/off sample
Should you worry
If TTFB remains consistent across both ad blocker states, your server-side delivery is unaffected by ad logic. That’s ideal.
Unhealthy TTFB with adblocker on/off sample
Slower TTFB with ad blocker off might signal:
Conditional server rendering paths triggered by ad personalization
Delayed responses due to tracking scripts or consent checks
Slower TTFB with ad blocker on could be a sign of:
Ad-related fallbacks causing routing or loading delays
Failed third-party calls creating server wait times or errors in the backend
Resolving unhealthy TTFB with adblocker on/off
Go-to action plan to resolve an unhealthy TTFB with adblocker on/off:
Ask Uxi to analyze your TTFB with adblocker on/off values and suggest improvements.
Use Filters to pinpoint the pages and timing conditions with the biggest gaps.
Simulate TTFB of the suspected lens to see if fixing it will resolve the TTFB with adblocker on/off. If yes, this is where the resolution focus should be.
Use an automated optimization tool like Navigation AI to improve your TTFB with adblocker on/off 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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