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jdsu.tv screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

jdsu.tv

VIAVI Solutions | Network Test, Monitoring, and Assurance

Page Load Speed

3.1 sec in total

First Response

219 ms

Resources Loaded

2.1 sec

Page Rendered

786 ms

jdsu.tv screenshot

About Website

Welcome to jdsu.tv homepage info - get ready to check Jdsu best content right away, or after learning these important things about jdsu.tv

Visit jdsu.tv

Key Findings

We analyzed Jdsu.tv page load time and found that the first response time was 219 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

jdsu.tv performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value11.9 s

0/100

25%

SI (Speed Index)

Value5.6 s

52/100

10%

TBT (Total Blocking Time)

Value1,870 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value16.0 s

6/100

10%

Network Requests Diagram

en-us

219 ms

css_kShW4RPmRstZ3SpIC-ZvVGNFVAi0WEMuCnI0ZkYIaFw.css

139 ms

css_zMrHrPBh3IRvLRmWRz4m6AYjZU-oxyxIqwlT2k0TdXI.css

144 ms

css_jMfdbE4edp7zmYYOi90wN-tK2YTz5dSp5e3gyOAI148.css

175 ms

css_AfmAq2TFXW53zCDCwufYG0W36ZQ_oeUKXq3erBoJryY.css

270 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Jdsu.tv, 21% (12 requests) were made to Use.typekit.net and 9% (5 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (447 ms) relates to the external source Use.typekit.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (72%)

Content Size

1.7 MB

After Optimization

472.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jdsu.tv 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. 55% of websites need less resources to load. Javascripts take 675.8 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 95.6 kB

  • Original 114.6 kB
  • After minification 106.3 kB
  • After compression 19.0 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 95.6 kB or 83% of the original size.

Image Optimization

-9%

Potential reduce by 21.4 kB

  • Original 244.9 kB
  • After minification 223.5 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. Jdsu images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 529.1 kB

  • Original 675.8 kB
  • After minification 458.6 kB
  • After compression 146.7 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 529.1 kB or 78% of the original size.

CSS Optimization

-87%

Potential reduce by 553.0 kB

  • Original 636.6 kB
  • After minification 626.7 kB
  • After compression 83.6 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. Jdsu.tv needs all CSS files to be minified and compressed as it can save up to 553.0 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (57%)

Requests Now

44

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jdsu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

en-us

en-us

219 ms

css_kShW4RPmRstZ3SpIC-ZvVGNFVAi0WEMuCnI0ZkYIaFw.css

css_kShW4RPmRstZ3SpIC-ZvVGNFVAi0WEMuCnI0ZkYIaFw.css

139 ms

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css_zMrHrPBh3IRvLRmWRz4m6AYjZU-oxyxIqwlT2k0TdXI.css

144 ms

css_jMfdbE4edp7zmYYOi90wN-tK2YTz5dSp5e3gyOAI148.css

css_jMfdbE4edp7zmYYOi90wN-tK2YTz5dSp5e3gyOAI148.css

175 ms

css_AfmAq2TFXW53zCDCwufYG0W36ZQ_oeUKXq3erBoJryY.css

css_AfmAq2TFXW53zCDCwufYG0W36ZQ_oeUKXq3erBoJryY.css

270 ms

css_gL0JXY88x5xrSWxonHg18mtvx6YO9HuNOotSqOl-3_E.css

css_gL0JXY88x5xrSWxonHg18mtvx6YO9HuNOotSqOl-3_E.css

364 ms

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css_9hZmG8AnMcc9SrwqC1eWE8kBsjzSHIryyfVT4rxrTms.css

185 ms

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345 ms

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286 ms

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261 ms

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436 ms

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439 ms

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358 ms

paa2llv.js

paa2llv.js

187 ms

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js_2sZfxXel7jEEqHb_HlNj1O8PFQ3A08S3IR7kW1gua3A.js

294 ms

www.viavisolutions.com

www.viavisolutions.com

227 ms

gtm.js

gtm.js

87 ms

logo.png

logo.png

86 ms

hero-stripe-blue.png

hero-stripe-blue.png

230 ms

banner-gartner-mq-homepage-2016-v3.jpg

banner-gartner-mq-homepage-2016-v3.jpg

403 ms

icon-tax-enterprise_0.png

icon-tax-enterprise_0.png

183 ms

icon-tax-wireline.png

icon-tax-wireline.png

181 ms

icon-tax-wireless.png

icon-tax-wireless.png

183 ms

icon-tax-manufacturers.png

icon-tax-manufacturers.png

184 ms

icon-tax-cloud.png

icon-tax-cloud.png

184 ms

home-block-mwc.jpg

home-block-mwc.jpg

405 ms

left.jpg

left.jpg

228 ms

feature-banner-gartner-half.jpg

feature-banner-gartner-half.jpg

405 ms

home-block-4.jpg

home-block-4.jpg

230 ms

sales-menu.png

sales-menu.png

403 ms

sprites.png

sprites.png

400 ms

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47 ms

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108 ms

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320 ms

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221 ms

fontello.woff

fontello.woff

219 ms

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447 ms

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269 ms

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390 ms

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411 ms

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317 ms

analytics.js

analytics.js

21 ms

insight.min.js

insight.min.js

21 ms

elqCfg.min.js

elqCfg.min.js

71 ms

bounce

bounce

163 ms

linkid.js

linkid.js

60 ms

ec.js

ec.js

105 ms

svrGP

svrGP

215 ms

fontello.ttf

fontello.ttf

73 ms

collect

collect

27 ms

collect

collect

97 ms

p.gif

p.gif

177 ms

svrGP.aspx

svrGP.aspx

60 ms

collect

collect

14 ms

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collect

16 ms

13 ms

Accessibility Review

jdsu.tv accessibility score

91

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

Best Practices

jdsu.tv best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

jdsu.tv SEO score

79

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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 Jdsu.tv 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 Jdsu.tv 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

jdsu.tv

Open Graph description is not detected on the main page of Jdsu. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: