Webmasters test websites with Google's Lighthouse for Chrome

1. How do I access the lighthouse in Chrome?
2. What is Google lighthouse?
3. What is a good lighthouse score?
4. How can I improve my lighthouse performance?
5. Can you live in a lighthouse?
6. How do I run a lighthouse locally?
7. Why are lighthouses red and white?
8. Are lighthouses still used?
9. Does not respond with a 200 when offline?
10. What is a good TTI?
11. What is SEO in Lighthouse?
12. How do I open developer tools in Chrome?
13. How do I fix minimize main thread work?

How do I access the lighthouse in Chrome?

Run Lighthouse as a Chrome Extension

1. In Chrome, go to the page you want to audit.
2. Click Lighthouse. . It should be next to the Chrome address bar. ...
3. Click Generate report. Lighthouse runs its audits against the currently-focused page, then opens up a new tab with a report of the results. Figure 4.

What is Google lighthouse?

Google Lighthouse is a free tool that provides powerful insights to help improve your website. By generating a Lighthouse report, you can assess any web page's page experience and access valuable tips to improve its performance.

What is a good lighthouse score?

To provide a good user experience, sites should strive to have a good score (90-100). A "perfect" score of 100 is extremely challenging to achieve and not expected. For example, taking a score from 99 to 100 needs about the same amount of metric improvement that would take a 90 to 94.

How can I improve my lighthouse performance?

Some simple things you can do in the meantime to aim for your own 100% Lighthouse performance score:

1. Optimise all images.
2. Cut down on the number of plug-ins and widgets.
3. Improve the first meaningful “paint” (i.e. the amount of time it takes the user to see primary content)
4. Focus on your high impact pages.

Can you live in a lighthouse?

There are a few different ways to live in a lighthouse: you can buy one, rent one, or become a volunteer or paid lighthouse keeper. Each has different responsibilities, but even a rental can be a full time job. These are just four of the difficult things you have to do if you call a lighthouse home.

How do I run a lighthouse locally?

Run Lighthouse as a Chrome Extension

1. In Chrome, go to the page you want to audit.
2. Click Lighthouse . It should be next to the Chrome address bar. ...
3. Click Generate report. Lighthouse will run its audits against the current page and open up a new tab with a report of the results.

Why are lighthouses red and white?

The red and white stripes help the mariner identify the lighthouse if the lighthouse is up against a white background, such as cliffs or rocks. The height of a lighthouse takes into account the curvature of the earth, so the higher light above MHW (mean high water), the further away it can be seen at sea.

Are lighthouses still used?

While lighthouses still guide seafarers, nowadays, the Global Positioning System (GPS), NOAA's nautical charts, lighted navigational aids, buoys, radar beacons, and other aids to navigation effectively warn mariners of dangerous areas and guide them to safe harbors. ... August 7 Is recognized as National Lighthouse Day.

Does not respond with a 200 when offline?

If the browser doesn't receive an HTTP 200 response when accessing an app from the start_url , either the start_url isn't correct, or the page isn't accessible offline. This causes problems for users who have installed the app to their devices.

What is a good TTI?

What is a good TTI score? # To provide a good user experience, sites should strive to have a Time to Interactive of less than 5 seconds when tested on average mobile hardware. For details on how your page's TTI affects your Lighthouse performance score, see How Lighthouse determines your TTI score.

What is SEO in Lighthouse?

Lighthouse runs various tests to establish how well a website or app can be crawled by search engines and displayed in the search results. These Lighthouse tests that Google describes as “SEO” are extremely limited; anyone with a website or app that does not achieve a maximum score should make the required fixes.

How do I open developer tools in Chrome?

To open the developer console in Google Chrome, open the Chrome Menu in the upper-right-hand corner of the browser window and select More Tools > Developer Tools. You can also use the shortcut Option + ⌘ + J (on macOS), or Shift + CTRL + J (on Windows/Linux).

How do I fix minimize main thread work?

How do I minimize main thread work?

1. Remove third-party JavaScript.
2. Utilize web workers to do tasks off the main thread.
3. Cut the complexity of your styles and layouts.
4. Stick to the PRPL pattern.
5. Minify and defer CSS.