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
94%
Desktop Performance
94%

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 Paint1.7 s0.5 s< 2.5 s
First Input Delay130 ms50 ms< 100ms
Cumulative Layout Shift00.017 0.1

Tracking scripts

All the tracking scripts on the site generated ~16 KB of data

A tracking script is a code snippet designed to track the flow of visitors who visit a website. Media, advertising, and analytics organisations will provide a script to add to your website that sends data directly to their servers. This data can then be used to measure goals and conversions, analyse user behaviour, and influence advertising campaigns.

Consider how much of this data you actually need and use? How often do you review the analytics data, and does this inform genuine change? Are you actively running social media campaigns? Consider pausing or removing tracking scripts that aren’t being actively used.

static.cloudflareinsights.com 1 6 KB
secure.quantserve.com 1 9 KB
pixel.quantserve.com 1 575 B

Opportunities

Largest Contentful Paint

MobileDesktop
Score99%100%
Timing1.7 s0.5 s

Total Blocking Time

MobileDesktop
Score98%100%
Timing100 ms0 ms

Speed Index

MobileDesktop
Score46%37%
Timing6.0 s2.6 s

Time to Interactive

MobileDesktop
Score70%100%
Timing5.6 s0.9 s

Max Potential First Input Delay

MobileDesktop
Score88%100%
Timing130 ms50 ms

Properly size images

MobileDesktop
Score47%100%
InsightPotential savings of 104 KiBPotential savings of 167 KiB

Reduce unused JavaScript

MobileDesktop
Score50%90%
InsightPotential savings of 56 KiBPotential savings of 56 KiB

Serve images in next-gen formats

MobileDesktop
Score75%100%
InsightPotential savings of 60 KiB

Reduce initial server response time

MobileDesktop
GradeFailFail
InsightRoot document took 1,290 msRoot document took 1,350 ms

Avoid serving legacy JavaScript to modern browsers

MobileDesktop
Score89%100%
InsightPotential savings of 17 KiBPotential savings of 17 KiB

Serve static assets with an efficient cache policy

MobileDesktop
Score28%42%
Insight32 resources found30 resources found

Minimizes main-thread work

MobileDesktop
Score99%100%
Timing1.0 s0.4 s

Avoid document.write()

MobileDesktop
GradeFailFail

Image elements do not have explicit width and height

MobileDesktop
GradeFailFail