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z100.com screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

z100.com

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

Page Load Speed

362 ms in total

First Response

66 ms

Resources Loaded

237 ms

Page Rendered

59 ms

z100.com screenshot

About Website

Click here to check amazing Z100 content for United States. Otherwise, check out these important facts you probably never knew about z100.com

Z100 is New York's #1 Hit Music Station - featuring hit music radio and Elvis Duran, Ryan Seacrest live from New York City at Z100.com and iHeartRadio.

Visit z100.com

Key Findings

We analyzed Z100.com page load time and found that the first response time was 66 ms and then it took 296 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

z100.com performance score

28

Measured Metrics

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%

Network Requests Diagram

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.

Page Optimization Overview & Recommendations

Page size can be reduced by 967.5 kB (57%)

Content Size

1.7 MB

After Optimization

729.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

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.

Requests Breakdown

Number of requests can be reduced by 49 (92%)

Requests Now

53

After Optimization

4

  • Images
  • JavaScript
  • CSS

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.

Network Requests Diagram

z100.iheart.com

z100.iheart.com

66 ms

bundle.8b37dfa4e56540828535.css

bundle.8b37dfa4e56540828535.css

50 ms

local.61ee981fd3f90606a4d9.css

local.61ee981fd3f90606a4d9.css

55 ms

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

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

62 ms

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

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

63 ms

Datasource-component.a1eb25fbdc158e499608.css

Datasource-component.a1eb25fbdc158e499608.css

62 ms

Grid-component.9e05f3f8fa0e6b993347.css

Grid-component.9e05f3f8fa0e6b993347.css

63 ms

components-tiles-ContentTile-component.a5e9ee6f3bc07a62d945.css

components-tiles-ContentTile-component.a5e9ee6f3bc07a62d945.css

60 ms

core-page-blocks-music-MusicTile-component.c0f2337b7d57cb7e8b6d.css

core-page-blocks-music-MusicTile-component.c0f2337b7d57cb7e8b6d.css

62 ms

Heading-component.d79a5c95e6ef67a97bca.css

Heading-component.d79a5c95e6ef67a97bca.css

68 ms

Show-component.608ec1ff0656c8b676a1.css

Show-component.608ec1ff0656c8b676a1.css

66 ms

LoadMoreFromCursor-component.4a7a0f66bc2d890b3034.css

LoadMoreFromCursor-component.4a7a0f66bc2d890b3034.css

66 ms

Eyebrow-component.23e83d8b8cab22ea99d6.css

Eyebrow-component.23e83d8b8cab22ea99d6.css

66 ms

core-page-blocks-datasource-DatasourceTileLoader-component.a1eb25fbdc158e499608.css

core-page-blocks-datasource-DatasourceTileLoader-component.a1eb25fbdc158e499608.css

65 ms

FauxButton-component.1f25bb623660eb4f88c1.css

FauxButton-component.1f25bb623660eb4f88c1.css

64 ms

components-catalog-TrackList-component.626e2b289929900208bd.css

components-catalog-TrackList-component.626e2b289929900208bd.css

68 ms

Podcasts-component.570accd833088f4c4e7d.css

Podcasts-component.570accd833088f4c4e7d.css

68 ms

ImageTile-component.c2cbd469fbc0bd11cbdf.css

ImageTile-component.c2cbd469fbc0bd11cbdf.css

69 ms

Card-component.c66d212af09897afcdd6.css

Card-component.c66d212af09897afcdd6.css

66 ms

AptivadaKeywordContest-component.a21f13419d9d48bf409a.css

AptivadaKeywordContest-component.a21f13419d9d48bf409a.css

70 ms

moatheader.js

moatheader.js

104 ms

6634ba78abde65ec04ea2642

6634ba78abde65ec04ea2642

162 ms

runtime.1902f8bce8e1544c4618.js

runtime.1902f8bce8e1544c4618.js

34 ms

vendor.05dc1b4406ece7068736.js

vendor.05dc1b4406ece7068736.js

72 ms

bundle.cde394af11a75f6a4bed.js

bundle.cde394af11a75f6a4bed.js

89 ms

packages-renderer-shared-ui-src-elements-MagicLink-component.748e878b4b4ef9b70e33.js

packages-renderer-shared-ui-src-elements-MagicLink-component.748e878b4b4ef9b70e33.js

68 ms

src_app_core_chrome_AppTray_component_tsx-src_app_core_chrome_HeaderSearch_component_tsx-src_-b801d3.1e679f95d57c7989971c.js

src_app_core_chrome_AppTray_component_tsx-src_app_core_chrome_HeaderSearch_component_tsx-src_-b801d3.1e679f95d57c7989971c.js

71 ms

local.a5b480bb028a49b07c6c.js

local.a5b480bb028a49b07c6c.js

69 ms

core-components-tiles-OnairTileLoader-component.3c9c776801ce3f5ccf05.js

core-components-tiles-OnairTileLoader-component.3c9c776801ce3f5ccf05.js

71 ms

core-page-blocks-datasource-DatasourceLoader-component.faf2959d6418f406fb29.js

core-page-blocks-datasource-DatasourceLoader-component.faf2959d6418f406fb29.js

72 ms

packages_renderer_shared_core_src_lib_ads_ts.1e6b521f5518cfa95461.js

packages_renderer_shared_core_src_lib_ads_ts.1e6b521f5518cfa95461.js

72 ms

Datasource-component.09c541938624ea67842c.js

Datasource-component.09c541938624ea67842c.js

72 ms

Grid-component.48dae21730bceb9ee5e7.js

Grid-component.48dae21730bceb9ee5e7.js

75 ms

LeadFeedItem-component.4330af319e52f7557387.js

LeadFeedItem-component.4330af319e52f7557387.js

74 ms

components-tiles-ContentTile-component.22ddd6a7b1c8a1bc4e2d.js

components-tiles-ContentTile-component.22ddd6a7b1c8a1bc4e2d.js

73 ms

ContentFeedItem-component.2c07f0e7be984e8aee02.js

ContentFeedItem-component.2c07f0e7be984e8aee02.js

76 ms

core-page-blocks-music-MusicTile-component.1e79eaaa9e2979d88ec8.js

core-page-blocks-music-MusicTile-component.1e79eaaa9e2979d88ec8.js

76 ms

ShowCollection-component.0c3f9b3068fe83748412.js

ShowCollection-component.0c3f9b3068fe83748412.js

76 ms

Heading-component.ea88c81b8d34c977158c.js

Heading-component.ea88c81b8d34c977158c.js

77 ms

f79fc341-a979-4863-81b0-eea1ddc6e07b

f79fc341-a979-4863-81b0-eea1ddc6e07b

30 ms

Show-component.cdfd0315af774eaef8dd.js

Show-component.cdfd0315af774eaef8dd.js

69 ms

core-page-blocks-podcast-PodcastsLoader-component.71edb632222c77f48f93.js

core-page-blocks-podcast-PodcastsLoader-component.71edb632222c77f48f93.js

64 ms

LoadMoreFromCursor-component.dd840a1844d3d6bb0d7d.js

LoadMoreFromCursor-component.dd840a1844d3d6bb0d7d.js

60 ms

Eyebrow-component.533482f1ba2c4fcd4202.js

Eyebrow-component.533482f1ba2c4fcd4202.js

59 ms

core-page-blocks-datasource-DatasourceTileLoader-component.859548168af5e451e54e.js

core-page-blocks-datasource-DatasourceTileLoader-component.859548168af5e451e54e.js

61 ms

FauxButton-component.6f17f4f82d52801c5c49.js

FauxButton-component.6f17f4f82d52801c5c49.js

59 ms

core-page-blocks-contest-KeywordContestLoader-component.eb063dc982e7b1285f9b.js

core-page-blocks-contest-KeywordContestLoader-component.eb063dc982e7b1285f9b.js

61 ms

components-catalog-TrackList-component.04f8bfd3f9d530b10dfd.js

components-catalog-TrackList-component.04f8bfd3f9d530b10dfd.js

60 ms

DateTimeDisplay-component.baa2bb00da4f804350fd.js

DateTimeDisplay-component.baa2bb00da4f804350fd.js

58 ms

vendors-node_modules_pnpm_isomorphic-dompurify_0_23_0_node_modules_isomorphic-dompurify_browser_js.6c4667c6ebbb3bd5aea7.js

vendors-node_modules_pnpm_isomorphic-dompurify_0_23_0_node_modules_isomorphic-dompurify_browser_js.6c4667c6ebbb3bd5aea7.js

56 ms

Podcasts-component.c822825f35d41178cdf7.js

Podcasts-component.c822825f35d41178cdf7.js

58 ms

ImageTile-component.b3ff14a77346457b64fe.js

ImageTile-component.b3ff14a77346457b64fe.js

59 ms

Card-component.24dee8840408569eb2c3.js

Card-component.24dee8840408569eb2c3.js

58 ms

AptivadaKeywordContest-component.b7ea73f8063fca6968f6.js

AptivadaKeywordContest-component.b7ea73f8063fca6968f6.js

59 ms

Accessibility Review

z100.com accessibility score

100

Accessibility Issues

Best Practices

z100.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

z100.com SEO score

100

Search Engine Optimization Advices

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Z100.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Z100.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

z100.com

Open Graph data is detected on the main page of Z100. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: