Access jj100.org. #JJ100 - Celebrating 100 Years of Jane Jacobs

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value750 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.105

88/100

15%

TTI (Time to Interactive)

Value15.5 s

7/100

10%

jj100.org

253 ms

jj100.org

67 ms

www.jj100.org

645 ms

style.min.css

57 ms

taptap.css

69 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 64% of them (34 requests) were addressed to the original Jj100.org, 11% (6 requests) were made to Fonts.gstatic.com and 9% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (645 ms) belongs to the original domain Jj100.org.

Content Size

2.2 MB

After Optimization

1.8 MB

In fact, the total size of Jj100.org main page is 2.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 46.6 kB

Original 57.3 kB
After minification 54.2 kB
After compression 10.7 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 46.6 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 50.8 kB

Original 1.6 MB
After minification 1.5 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. JJ100 images are well optimized though.

JavaScript Optimization

-59%

Potential reduce by 283.9 kB

Original 481.6 kB
After minification 481.6 kB
After compression 197.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 283.9 kB or 59% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

Original 59.8 kB
After minification 59.8 kB
After compression 59.8 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. Jj100.org has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JJ100. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.