Sustainable WWW
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 Paint, First Input Delay, and Cumulative Layout Shift.
Vital | Mobile | Desktop | Target |
---|---|---|---|
Largest Contentful Paint | 1.7 s | 0.5 s | < 2.5 s |
First Input Delay | 130 ms | 50 ms | < 100ms |
Cumulative Layout Shift | 0 | 0.017 | 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
Mobile | Desktop | |
---|---|---|
Score | 99% | 100% |
Timing | 1.7 s | 0.5 s |
Total Blocking Time
Mobile | Desktop | |
---|---|---|
Score | 98% | 100% |
Timing | 100 ms | 0 ms |
Speed Index
Mobile | Desktop | |
---|---|---|
Score | 46% | 37% |
Timing | 6.0 s | 2.6 s |
Time to Interactive
Mobile | Desktop | |
---|---|---|
Score | 70% | 100% |
Timing | 5.6 s | 0.9 s |
Max Potential First Input Delay
Mobile | Desktop | |
---|---|---|
Score | 88% | 100% |
Timing | 130 ms | 50 ms |
Properly size images
Mobile | Desktop | |
---|---|---|
Score | 47% | 100% |
Insight | Potential savings of 104 KiB | Potential savings of 167 KiB |
Reduce unused JavaScript
Mobile | Desktop | |
---|---|---|
Score | 50% | 90% |
Insight | Potential savings of 56 KiB | Potential savings of 56 KiB |
Serve images in next-gen formats
Mobile | Desktop | |
---|---|---|
Score | 75% | 100% |
Insight | Potential savings of 60 KiB |
Reduce initial server response time
Mobile | Desktop | |
---|---|---|
Grade | Fail | Fail |
Insight | Root document took 1,290 ms | Root document took 1,350 ms |
Avoid serving legacy JavaScript to modern browsers
Mobile | Desktop | |
---|---|---|
Score | 89% | 100% |
Insight | Potential savings of 17 KiB | Potential savings of 17 KiB |
Serve static assets with an efficient cache policy
Mobile | Desktop | |
---|---|---|
Score | 28% | 42% |
Insight | 32 resources found | 30 resources found |
Minimizes main-thread work
Mobile | Desktop | |
---|---|---|
Score | 99% | 100% |
Timing | 1.0 s | 0.4 s |
Avoid document.write()
Mobile | Desktop | |
---|---|---|
Grade | Fail | Fail |
Image elements do not have explicit width
and height
Mobile | Desktop | |
---|---|---|
Grade | Fail | Fail |
Insights
Carbon footprint
The carbon footprint of a website can be calculated by estimating the amount of energy consumed by the data center hosting the website, as well as the energy consumed by users accessing the site. Factors that can influence a website’s carbon footprint include the size of the site, the amount of traffic it receives, and the technology and hosting infrastructure used to host the site.
Mobile | Desktop | |
---|---|---|
Green Hosting | Yes | Yes |
Cleaner than | 85% | 87% |
CO2 per page load | 0.14g | 0.11g |
CO2 wasted per page load | ~0g | ~0g |
Transfer size | 614.96KB | 501.93KB |
Size wasted | 80.57 KB | 17.20 KB |
Sustainable hosting
By hosting this site on a server powered by renewable energy, this page generated ~0.11grams of CO2 instead of ~0.13grams of CO2.
Sustainable web hosting refers to hosting services that are designed to minimise their impact on the environment and to promote sustainability. This can include using renewable energy sources, reducing waste and emissions, and implementing best practices for energy efficiency.
Sustainable web hosting providers aim to reduce their carbon footprint by using energy-efficient server hardware, data centres, and networking equipment, as well as implementing environmentally friendly policies and practices. For example, some providers may use renewable energy sources, such as wind or solar power, to power their data centres, or they may use high-efficiency cooling systems to reduce energy consumption.
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 |
Insights
Google Lighthouse Accessibility
The accessibility score in Google Lighthouse is a metric that measures how well a website is designed for users with disabilities. The score ranges from 0 to 100, with higher scores indicating better accessibility.
Google Lighthouse evaluates a website’s accessibility based on a number of different factors, such as the presence of alternative text for images, the use of semantic HTML, the ability to navigate the page using only a keyboard, and the use of appropriate color contrasts.
A high accessibility score in Google Lighthouse indicates that a website is well-designed for users with disabilities and provides an inclusive user experience. On the other hand, a low accessibility score can indicate that a website has barriers that make it difficult or impossible for some users to access and use the content.
In automated testing, this page scored 80% for accessibility on desktop. Keep in mind that automated accessibility testing is not perfect and that manual tests, use case testing, or usability testing should be completed as well.
- Mobile Accessibility
- 97%
- Desktop Accessibility
- 100%
Insights
Google Lighthouse Best Practices
Google Lighthouse evaluates a website’s best practices based on a number of different factors, such as the use of HTTPS encryption, the use of efficient caching policies, the implementation of modern web technologies, and the avoidance of deprecated technologies.
A high best practices score in Google Lighthouse indicates that a website is well-designed and follows best practices for web development, which can lead to better performance, security, and accessibility. On the other hand, a low best practices score can indicate that a website has room for improvement in terms of following best practices.
- Mobile Best Practices
- 92%
- Desktop Best Practices
- 83%
Google Lighthouse SEO
Google Lighthouse evaluates a website’s SEO based on a number of different factors, such as the presence of title and description tags, the use of header tags, the presence of structured data, the use of image alt tags, and the use of crawlable links.
A high SEO score in Google Lighthouse indicates that a website is well-optimized for search engines, which can help to improve its visibility in search results and increase its organic traffic. On the other hand, a low SEO score can indicate that a website has room for improvement in terms of its optimization for search engines.
While a high SEO score can help to improve a website’s visibility in search results, it’s not a guarantee of higher rankings, as search engine algorithms take many other factors into account when determining the ranking of a website.
- Mobile SEO
- 93%
- Desktop SEO
- 92%
Google Lighthouse PWA
The Progressive Web App (PWA) score in Google Lighthouse is a metric that measures the quality of a website as a progressive web app. The score ranges from 0 to 100, with higher scores indicating better performance and functionality as a PWA.
A progressive web app is a type of web application that combines the best features of both web and native apps, providing users with a fast, reliable, and engaging experience on any device.
Google Lighthouse evaluates a website’s PWA performance based on several key factors, such as the availability of a service worker, the presence of a web app manifest, the ability to install the app on the home screen, and the performance of the app under poor network conditions.
- Mobile PWA
- 89%
- Desktop PWA
- 88%
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
Security headers to set
HTTP security headers are special HTTP headers that can be added to a website’s response to help improve its security. They are important because they can help to protect a website and its users from various security threats, such as cross-site scripting (XSS) attacks, cross-site request forgery (CSRF) attacks, and other types of malicious activity.
It’s important to note, however, that implementing HTTP security headers is just one aspect of a comprehensive security strategy, and that other measures, such as regular software updates, secure coding practices, and regular security audits, are also important for maintaining a secure website.
Header | Set |
---|---|
strict-transport-security | No |
content-security-policy | No |
x-frame-options | Yes |
x-content-type-options | No |
referrer-policy | No |
permissions-policy | No |
It's important to note, however, that implementing HTTP security headers is just one aspect of a comprehensive security strategy, and that other measures, such as regular software updates, secure coding practices, and regular security audits, are also important for maintaining a secure website.
Links do not have descriptive text
Links with descriptive text can provide users with more context about the content they are clicking on, which can help them to make informed decisions about whether to follow the link or not. This is especially important for users with disabilities, as screen readers can use the link text to provide an audio description of the content.
In addition, links with descriptive text can also improve the overall user experience, as users are more likely to know what to expect when they follow a link. This can reduce the likelihood of users bouncing back from a page after finding that it’s not what they were looking for, which can help to improve the user engagement and retention on a website.
Furthermore, descriptive links can also help to improve a website\’s search engine optimisation (SEO). Search engines use the link text and surrounding context to understand the content of a page, and this information is used to determine the relevance of a page for specific search queries. Descriptive links can help search engines to understand the content of a page more accurately, which can improve its visibility and ranking in search results.
Mobile | Desktop | |
---|---|---|
Grade | Fail | Fail |
Insight | 2 links found | 2 links found |
Registers an unload
listener
Mobile | Desktop | |
---|---|---|
Grade | Fail | Fail |
Browser errors were logged to the console
Mobile | Desktop | |
---|---|---|
Grade | Pass | Fail |