Insights

Google Lighthouse Performance

The Google Lighthouse performance score is a metric that measures the speed and performance of a website. It’s an overall score that ranges from 0 to 100 and is generated based on a number of different performance metrics, such as the time it takes for a website to load, the time it takes for a website to become interactive, the size of the resources used by the website, and other factors that impact the user experience.

A high performance score in Google Lighthouse indicates that a website is fast and responsive, which can lead to a better user experience and improved search engine rankings. On the other hand, a low performance score can indicate that a website is slow and unresponsive, and can negatively impact the user experience.

Mobile Performance
32%
Desktop Performance
68%

Core Web Vitals

Core Web Vitals are a set of specific factors that Google considers important in a webpage’s overall user experience. Core Web Vitals are made up of three specific page speed and user interaction measurements: Largest Contentful PaintFirst Input Delay, and Cumulative Layout Shift.

VitalMobileDesktopTarget
Largest Contentful Paint24.1 s2.7 s< 2.5 s
First Input Delay770 ms230 ms< 100ms
Cumulative Layout Shift00 0.1

Opportunities

Optimise images

By optimising the following images, roughly 320 KB could be removed from the transfer size, about 13%. This would reduce the CO2 generated per page load from 0.64g grams to 0.56 grams.

Images should be optimised for the web for several reasons:

  1. Reduced file size: Optimizing images can result in a smaller file size, which can help to reduce the amount of data that needs to be downloaded. This can lead to faster page load times and improved performance.
  2. Improved user experience: Optimising images can help to improve the overall user experience, as pages with optimised images load faster and are more responsive.
  3. Lower emissions: Optimising images can help to reduce the emissions associated with data transfer, as less data needs to be transmitted over the network.
  4. Better accessibility: Optimising images can make them more accessible to users with slower connections or limited data plans.
Long+Island+Port+Precinct.JPG 276 KB 11% 106 KB
image-asset.jpeg 91 KB 4% 64 KB
Construction-of-Crib-Point-Jetty-1964-1965.jpg 61 KB 2% 23 KB
image-asset.jpeg 53 KB 2% 36 KB
POH+Corporation+logo+May+2022.jpg 50 KB 2% 24 KB
Port-Of-Hastings-Main015.jpg 47 KB 2% 22 KB
POH+Corporation+logo+May+2022.jpg 31 KB 1% 15 KB
Lima01.jpg 22 KB 1% 12 KB
image-asset.jpeg 21 KB 1% 11 KB
vic-state.jpg 14 KB 1% 8 KB

Subset large font files

Fonts should be subsetted to reduce the file size, improve performance, and reduce emissions. Subsetting a font involves removing any characters that are not needed for a particular use case, resulting in a smaller file size and faster page load times. Some specific reasons why fonts should be subsetted include:

  1. Reduced file size: Subsetting a font removes any unused characters, which can result in a smaller file size. This can help to reduce the amount of data that needs to be downloaded, leading to faster page load times and lower emissions.
  2. Improved performance: Fonts that are subsetted are faster to load and render than fonts that are not subsetted. This can help to improve the overall performance of a website, leading to a better user experience.

Overall, subsetting fonts is a good practice for anyone looking to optimize the performance and reduce the emissions of a website of a website.

Typekit: l ~67 KB ~50 KB
Typekit: l ~46 KB ~28 KB
Typekit: l ~45 KB ~28 KB
Typekit: l ~42 KB ~24 KB
Typekit: l ~40 KB ~22 KB
Typekit: l ~40 KB ~22 KB

Remove third party font files

Font files should be loaded from the same hosting as the website because

  1. Increased loading time: Third-party sub-resources, such as scripts, fonts, or images, need to be downloaded from a separate server before they can be displayed on the website. This can increase the overall loading time of the page, leading to a slower user experience.
  2. Dependence on external servers: The loading of third-party subresources is dependent on the availability and performance of the external servers that host them. If these servers are slow or unavailable, it can result in slow page loading times or even errors.
  3. Increased risk of security threats: Third-party subresources can introduce security risks to a website, as they can contain malicious code or be used to track user activity.
HostFont
use.typekit.netl
use.typekit.netl
use.typekit.netl
use.typekit.netl
use.typekit.netl
use.typekit.netl
use.typekit.netl
use.typekit.netl
use.typekit.netl
use.typekit.netl
fonts.gstatic.comKFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2

First Contentful Paint

First Contentful Paint (FCP) is a performance metric that measures the time it takes for the first piece of content to be rendered on the screen when a user navigates to a web page. This content can be any visual element on the page, such as text, images, or a background color.

FCP is important because it directly affects the perceived speed of a website, and can impact user engagement and conversion rates. A faster FCP can lead to a better user experience and improved performance.

Here are a few ways you can optimise your FCP:

  1. Optimise images: Large, unoptimised images can slow down a page’s FCP. You can optimise images by compressing them, reducing their dimensions, and choosing the right format for each image.
  2. Minimise HTTP requests: Each resource requested by a web page, such as images, scripts, and stylesheets, requires a separate HTTP request. Minimising the number of HTTP requests can help to reduce the time it takes for a page to render.
  3. Prioritize critical content: Prioritizing critical content, such as above-the-fold content, can help to ensure that users see something on the screen quickly, even if the rest of the page is still loading.
  4. Reduce server response time: A slow server response time can significantly impact FCP. Optimizing server-side code and server settings can help to reduce response times and improve FCP.
  5. Use a performance monitoring tool: There are many tools available that can help you monitor your website’s performance, including FCP. These tools can help you identify performance issues and track your progress as you implement optimizations.
MobileDesktop
Score1%40%
Timing7.5 s1.8 s

Largest Contentful Paint

MobileDesktop
Score0%41%
Timing24.1 s2.7 s

Total Blocking Time

MobileDesktop
Score20%79%
Timing1,200 ms200 ms

Speed Index

MobileDesktop
Score8%46%
Timing10.4 s2.4 s

Time to Interactive

MobileDesktop
Score8%83%
Timing14.8 s2.9 s

Max Potential First Input Delay

MobileDesktop
Score1%56%
Timing770 ms230 ms

First Meaningful Paint

MobileDesktop
Score2%37%
Timing9.2 s1.8 s

Eliminate render-blocking resources

MobileDesktop
Score0%45%
InsightPotential savings of 5,230 msPotential savings of 1,160 ms

Properly size images

MobileDesktop
Score48%72%
InsightPotential savings of 145 KiBPotential savings of 316 KiB

Defer offscreen images

MobileDesktop
Score39%86%
InsightPotential savings of 239 KiBPotential savings of 89 KiB

Reduce unused CSS

MobileDesktop
Score100%97%
InsightPotential savings of 56 KiB

Reduce unused JavaScript

MobileDesktop
Score29%50%
InsightPotential savings of 507 KiBPotential savings of 607 KiB

Efficiently encode images

MobileDesktop
Score0%100%
InsightPotential savings of 1,360 KiBPotential savings of 55 KiB

Serve images in next-gen formats

MobileDesktop
Score0%72%
InsightPotential savings of 1,898 KiBPotential savings of 320 KiB

Reduce initial server response time

MobileDesktop
GradeFailFail
InsightRoot document took 1,050 msRoot document took 710 ms

Preload Largest Contentful Paint image

MobileDesktop
Score0%97%
InsightPotential savings of 40 ms

Avoids enormous network payloads

MobileDesktop
Score39%93%
InsightTotal size was 4,348 KiBTotal size was 2,484 KiB

Serve static assets with an efficient cache policy

MobileDesktop
Score18%8%
Insight20 resources found21 resources found

Avoid an excessive DOM size

MobileDesktop
Score88%77%
Insight842 elements1,016 elements

JavaScript execution time

MobileDesktop
Score60%98%
Timing2.9 s0.7 s

Minimizes main-thread work

MobileDesktop
Score28%96%
Timing5.4 s1.5 s

Ensure text remains visible during webfont load

MobileDesktop
GradeFailFail

Minimize third-party usage

MobileDesktop
GradeFailPass
InsightThird-party code blocked the main thread for 1,310 msThird-party code blocked the main thread for 200 ms

Largest Contentful Paint image was not lazily loaded

MobileDesktop
GradeFailPass

Does not use passive listeners to improve scrolling performance

MobileDesktop
GradeFailFail

Image elements do not have explicit width and height

MobileDesktop
GradeFailFail