TTFB in the LCP Phase table minimum of 600ms

[dwsmart]

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://tamethebots.com/

What happened?

When running a pagespeed insights test, it seems that the TTFB in the phase section under the LCP report has a floor of 600ms, and it's impossible to get a lower value:

Other examples

• https://pagespeed.web.dev/analysis/https-www-industrialempathy-com/mhdl1wnti2?form_factor=mobile

• https://pagespeed.web.dev/analysis/https-www-scalemates-com/f0cihflwe7?form_factor=mobile

What did you expect?

An accurate representation of the TTFB value

What have you tried?

No response

How were you running Lighthouse?

PageSpeed Insights

Lighthouse Version

12.2.3

Chrome Version

No response

Node Version

No response

OS

No response

Relevant log output