# Monitor core web vitals with Lighthouse and Gemini: n8n workflow

> Started by a clock, and works across Google Sheets and Telegram. It hands the judgement calls to Gemini.

Source: https://millionrounds.com/workflow/monitor-core-web-vitals-with-lighthouse-and-gemini (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Alerts and monitoring](https://millionrounds.com/workflows?category=Alerts+and+monitoring#library)

# Monitor core web vitals with Lighthouse and Gemini

Started by a clock, and works across Google Sheets and Telegram. It hands the judgement calls to Gemini. 8 steps, 1 branch: small enough to read in one sitting and change without fear.

Small Calls a model: Gemini

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fmonitor-core-web-vitals-with-lighthouse-and-gemini)

**8 steps** Small: readable in one sitting

**1** Branch: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 1 Model 2 Logic 2 Service 3

The steps in the order they run, from what starts it.

- 1 **Schedule Trigger** Schedule trigger *Starts it*
- 2 **Google Gemini Chat Model** Lm Chat Google Gemini *Model*
- 3 **call page speed insights** Http Request *Service*
- 4 **summarize audit description** Chain Summarization *Model*
- 5 **processing data cwv and audits** Code *Logic*
- 6 **Append row in specific sheet** Google Sheets *Service*
- 7 **If** If *Logic*
- 8 **Send Notification** Telegram *Service*

## How it's built

- **Starts on:** A clock
- **Steps:** 8, with 1 branch
- **Size:** Small: readable in one sitting
- **Connects to:** Google Sheets, Telegram
- **Model:** Gemini

## Questions

What does it need to run?

An n8n account, plus your own Google Sheets and Telegram accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Not long. At 8 steps it can be read in one sitting and changed without fear.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 8 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fmonitor-core-web-vitals-with-lighthouse-and-gemini)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)[Telegram](https://millionrounds.com/workflows?service=Telegram#library)

## Workflows like it

Also alerts and monitoring, with the same services where possible, closest in size first.

- [**Ad Intelligence Pipeline: Monitor Competitor Ads & Generate Ad** 8 steps · calls a model · Google Sheets, Slack](https://millionrounds.com/workflow/ad-intelligence-pipeline-monitor-competitor-ads-and-generate)
- [**Automate UniFi controller updates with SSH and Telegram** 8 steps · calls a model · Telegram](https://millionrounds.com/workflow/automate-unifi-controller-updates-with-ssh-and-telegram)
- [**Automated job hunter: Upwork opportunity aggregator & AI-powered** 8 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automated-job-hunter-upwork-opportunity-aggregator-and-ai-po)
- [**Daily AI news monitoring and summarization with OpenAI** 8 steps · calls a model · RSS, Telegram](https://millionrounds.com/workflow/daily-ai-news-monitoring-and-summarization-with-openai)
- [**Diagnose workflow failures with Gemini and Google Sheets** 8 steps · calls a model · Google Sheets, Slack](https://millionrounds.com/workflow/diagnose-workflow-failures-with-gemini-and-google-sheets)
- [**Extract PDF itineraries to Google Sheets with OpenAI and Gmail** 8 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/extract-pdf-itineraries-to-google-sheets-with-openai-and-gma)