topic TTFB in USQL in Real User Monitoring

TTFB in USQL

chris_palmer — Wed, 20 Sep 2023 12:52:01 GMT

It would be useful to have TTFB available as an option for USQL. All other Core Web Vitals are available but not this one.

Re: TTFB in USQL

AntonioSousa — Wed, 20 Sep 2023 19:08:17 GMT

@chris_palmer,

In a user action you have multiple TTFB, one for each request.

There is a variable serverTime that gives you that information though.

Re: TTFB in USQL

chris_palmer — Thu, 21 Sep 2023 07:24:01 GMT

Thank you for the reply. I'm looking to run a query like this only with TTFB rather than LCP:

I spoke to customer support regarding this and they suggested Response Time as an alternative but we didn't feel this was an accurate reflection of TTFB. They also suggested asking regarding TTFB here.

Re: TTFB in USQL

AntonioSousa — Thu, 21 Sep 2023 07:32:17 GMT

select serverTime from useraction

will get you what you want. Just adapt it to your query.

Re: TTFB in USQL

chris_palmer — Thu, 21 Sep 2023 07:40:22 GMT

Thank you @AntonioSousa.