Access passivhaus.org.uk. Passivhaus Trust • Advancing the Passivhaus standard in the UK

name

value

score

weighting

FCP (First Contentful Paint)

Value7.4 s

1/100

10%

LCP (Largest Contentful Paint)

Value37.0 s

0/100

25%

SI (Speed Index)

Value19.8 s

0/100

10%

TBT (Total Blocking Time)

Value1,710 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value43.6 s

0/100

10%

passivhaus.org.uk

363 ms

passivhaus.uk

605 ms

global.css

46 ms

theplus-post-7257.min.css

80 ms

learndash.min.css

62 ms

Our browser made a total of 160 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Passivhaus.org.uk, 94% (151 requests) were made to Passivhaus.uk and 2% (3 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Passivhaus.uk.

Content Size

19.0 MB

After Optimization

16.1 MB

In fact, the total size of Passivhaus.org.uk main page is 19.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only a small number of websites need less resources to load. Images take 18.5 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 381.1 kB

Original 461.1 kB
After minification 458.6 kB
After compression 80.0 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 381.1 kB or 83% of the original size.

Image Optimization

-14%

Potential reduce by 2.5 MB

Original 18.5 MB
After minification 16.0 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Passivhaus needs image optimization as it can save up to 2.5 MB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 100 B

Original 7.7 kB
After minification 7.7 kB
After compression 7.6 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 5 B

Original 21.6 kB
After minification 21.6 kB
After compression 21.6 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Passivhaus.org.uk has all CSS files already compressed.

Requests Now

156

After Optimization

The browser has sent 156 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Passivhaus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 39 to 1 for JavaScripts and from 44 to 1 for CSS and as a result speed up the page load time.