Tools & Wizards About Us

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

duke.zoom.us

Video Conferencing, Web Conferencing, Online Meetings, Screen Sharing - Zoom

Page Load Speed

892 ms in total

First Response

59 ms

Resources Loaded

506 ms

Page Rendered

327 ms

About Website

Click here to check amazing Duke Zoom content for United States. Otherwise, check out these important facts you probably never knew about duke.zoom.us

Zoom unifies cloud video conferencing, simple online meetings, and cross platform group chat into one easy-to-use platform. Our solution offers the best video, audio, and screen-sharing experience acr...

Visit duke.zoom.us

Key Findings

We analyzed Duke.zoom.us page load time and found that the first response time was 59 ms and then it took 833 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

duke.zoom.us performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.1 s

100/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.07

96/100

15%

TTI (Time to Interactive)

Value1.1 s

100/100

10%

Network Requests Diagram

duke.zoom.us

59 ms

duke.zoom.us

107 ms

6cb2fb4f-927c-42cd-9a96-c67bfea41f37.jpg

301 ms

730d3d23-02d1-4dc1-9d32-223098a1d334.png

50 ms

f253e2da-4c74-4000-ac89-c4f56f425947.png

339 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that 60% of them (3 requests) were addressed to the original Duke.zoom.us, 40% (2 requests) were made to Zoom.us. The less responsive or slowest element that took the longest time to load (339 ms) relates to the external source Zoom.us.

Page Optimization Overview & Recommendations

Page size can be reduced by 5.6 kB (37%)

Content Size

15.4 kB

After Optimization

9.8 kB

  • HTML
  • Images

In fact, the total size of Duke.zoom.us main page is 15.4 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 8.2 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 5.0 kB

  • Original 7.2 kB
  • After minification 6.5 kB
  • After compression 2.2 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 5.0 kB or 70% of the original size.

Image Optimization

-7%

Potential reduce by 600 B

  • Original 8.2 kB
  • After minification 7.6 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. Duke Zoom images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

3

After Optimization

3

  • Images

The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duke Zoom. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

duke.zoom.us accessibility score

91

Accessibility Issues

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

duke.zoom.us best practices score

83

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

Serves images with low resolution

SEO Factors

duke.zoom.us SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

Page is blocked from indexing

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 Duke.zoom.us 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 Duke.zoom.us 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

Open Graph description is not detected on the main page of Duke Zoom. 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: