FAQ

• Yes, my issue is not about variability or throttling.
• Yes, my issue is not about a specific accessibility audit (file with axe-core instead).
• Yes, my issue is not answered by other FAQs.

URL

https://www.eskimoz.fr

What happened?

I ran a Pagespeed Insight test on four different websites to analyze TTFB. I noticed that in the LCP Breakdown section, the subpart “Time to First Byte” is always reported as 0 ms (!)

This occurs for all four websites tested, even though a measurable server latency is clearly shown in the “Document request latency” section.

What did you expect?

It says 0ms for both mobile and desktop by the way

Mobile :
Desktop:

Here is a screenshot showing server latency :

What have you tried?

I tested this on four to five different websites, on both mobile and desktop, and the value is always reported as 0 ms.

How were you running Lighthouse?

PageSpeed Insights

Lighthouse Version

n/a

Chrome Version

Version 144.0.7559.60 (Build officiel) (64 bits)

Node Version

No response

OS

Windows

Relevant log output

https://pagespeed.web.dev/analysis/https-www-eskimoz-fr/vd1d6ggpde?form_factor=mobile