Tools & Wizards About Us
astronomy101.universalclass.com screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

astronomy101.universalclass.com

UniversalClass: Online Courses and Continuing Education

Page Load Speed

1.3 sec in total

First Response

54 ms

Resources Loaded

430 ms

Page Rendered

775 ms

astronomy101.universalclass.com screenshot

About Website

Click here to check amazing Astronomy 101 Universal Class content for United States. Otherwise, check out these important facts you probably never knew about astronomy101.universalclass.com

UniversalClass is the place to continue your education online and fulfill all your lifelong learning goals.

Visit astronomy101.universalclass.com

Key Findings

We analyzed Astronomy101.universalclass.com page load time and found that the first response time was 54 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

astronomy101.universalclass.com performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

76/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value2.5 s

97/100

10%

TBT (Total Blocking Time)

Value650 ms

46/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value5.0 s

76/100

10%

Network Requests Diagram

astronomy101.universalclass.com

54 ms

www.universalclass.com

120 ms

8.jpg

53 ms

magnify.svg

42 ms

universal-class-logo.svg

45 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Astronomy101.universalclass.com, 91% (43 requests) were made to Cdn.4uc.org and 2% (1 request) were made to Universalclass.com. The less responsive or slowest element that took the longest time to load (145 ms) relates to the external source Cdn.4uc.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 120.2 kB (8%)

Content Size

1.5 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Astronomy101.universalclass.com main page is 1.5 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. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 114.8 kB

  • Original 142.5 kB
  • After minification 139.1 kB
  • After compression 27.7 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 114.8 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 5.4 kB

  • Original 1.3 MB
  • After minification 1.3 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. Astronomy 101 Universal Class images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 11 B

  • Original 21.4 kB
  • After minification 21.4 kB
  • After compression 21.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 21.0 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. Astronomy101.universalclass.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

43

After Optimization

43

  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Astronomy 101 Universal Class. According to our analytics all requests are already optimized.

Network Requests Diagram

astronomy101.universalclass.com

astronomy101.universalclass.com

54 ms

www.universalclass.com

www.universalclass.com

120 ms

8.jpg

8.jpg

53 ms

magnify.svg

magnify.svg

42 ms

universal-class-logo.svg

universal-class-logo.svg

45 ms

hmbrgr27x22.png

hmbrgr27x22.png

47 ms

xicon30x30.png

xicon30x30.png

48 ms

hmpgcoverbg4.jpg

hmpgcoverbg4.jpg

53 ms

chkmrkorng.gif

chkmrkorng.gif

49 ms

arts-crafts-1125625188bgpctr.jpg

arts-crafts-1125625188bgpctr.jpg

69 ms

family20isp770q1301171036.jpg

family20isp770q1301171036.jpg

93 ms

psychology-978387300bgpctr.jpg

psychology-978387300bgpctr.jpg

94 ms

accounting-831121290bgpctr.jpg

accounting-831121290bgpctr.jpg

93 ms

writing29.jpg

writing29.jpg

66 ms

event-management-classes-1168237251bgpctr.jpg

event-management-classes-1168237251bgpctr.jpg

92 ms

personalcare-1249041775bgpctr.jpg

personalcare-1249041775bgpctr.jpg

95 ms

computers-12556830321bgpctr.jpg

computers-12556830321bgpctr.jpg

93 ms

diversity31isp19224q913800638.jpg

diversity31isp19224q913800638.jpg

96 ms

diversity23isp19224q889029082.jpg

diversity23isp19224q889029082.jpg

94 ms

human-resources-522259169bgpctr.jpg

human-resources-522259169bgpctr.jpg

104 ms

healthcare-fitness-1300745916bgpctr.jpg

healthcare-fitness-1300745916bgpctr.jpg

96 ms

law15isp171022q531347803.jpg

law15isp171022q531347803.jpg

93 ms

spiritual-psychic-12552362301bgpctr.jpg

spiritual-psychic-12552362301bgpctr.jpg

105 ms

business19.jpg

business19.jpg

99 ms

ms-applications-1248743383bgpctr.jpg

ms-applications-1248743383bgpctr.jpg

112 ms

proofreading04.jpg

proofreading04.jpg

133 ms

stmppx4.jpg

stmppx4.jpg

102 ms

writingbasics08.jpg

writingbasics08.jpg

117 ms

quickbooks05.jpg

quickbooks05.jpg

112 ms

medical-terminology-8.jpg

medical-terminology-8.jpg

113 ms

excel-level-1-stump.jpg

excel-level-1-stump.jpg

110 ms

accounting07.jpg

accounting07.jpg

131 ms

jqy.js

jqy.js

114 ms

global30mq.js

global30mq.js

128 ms

js

js

60 ms

conversion_async.js

conversion_async.js

51 ms

icongradhat200x200.png

icongradhat200x200.png

136 ms

iconpaper200x200.png

iconpaper200x200.png

136 ms

iconbadge200x200.png

iconbadge200x200.png

137 ms

iconclock200x200.png

iconclock200x200.png

145 ms

slm4mi.css

slm4mi.css

119 ms

iconstudents68x75.png

iconstudents68x75.png

115 ms

iconclasses75x75.png

iconclasses75x75.png

113 ms

iconlessons67x75.png

iconlessons67x75.png

115 ms

facebook.png

facebook.png

113 ms

twitter.png

twitter.png

113 ms

youtube.png

youtube.png

109 ms

Accessibility Review

astronomy101.universalclass.com accessibility score

98

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.

Best Practices

astronomy101.universalclass.com 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

astronomy101.universalclass.com SEO score

97

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

High

Tap targets are not sized appropriately

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 Astronomy101.universalclass.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 Astronomy101.universalclass.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

astronomy101.universalclass.com

Open Graph data is detected on the main page of Astronomy 101 Universal Class. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: