Access z100.com. Z100 New York - New York's #1 Hit Music Station & Elvis Duran Show!

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value8.5 s

17/100

10%

TBT (Total Blocking Time)

Value7,670 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value30.8 s

0/100

10%

z100.iheart.com

66 ms

bundle.8b37dfa4e56540828535.css

50 ms

local.61ee981fd3f90606a4d9.css

55 ms

core-components-tiles-OnairTileLoader-component.12f62d6d6ad5771d626e.css

62 ms

core-page-blocks-datasource-DatasourceLoader-component.ed118ca85e0cefc658b6.css

63 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Z100.com, 4% (2 requests) were made to I.iheart.com and 2% (1 request) were made to Z100.iheart.com. The less responsive or slowest element that took the longest time to load (162 ms) relates to the external source I.iheart.com.

Content Size

1.7 MB

After Optimization

729.8 kB

In fact, the total size of Z100.com main page is 1.7 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. 70% of websites need less resources to load. HTML takes 960.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 772.6 kB

Original 960.9 kB
After minification 960.5 kB
After compression 188.4 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 772.6 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 4.0 kB
After minification 4.0 kB

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. Z100 images are well optimized though.

JavaScript Optimization

-28%

Potential reduce by 193.5 kB

Original 703.1 kB
After minification 703.1 kB
After compression 509.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 193.5 kB or 28% of the original size.

CSS Optimization

-5%

Potential reduce by 1.4 kB

Original 29.3 kB
After minification 29.1 kB
After compression 27.8 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. Z100.com has all CSS files already compressed.

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After Optimization

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Z100. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.