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theremin.music.uiowa.edu screenshot

Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

theremin.music.uiowa.edu

University of Iowa Electronic Music Studios

Page Load Speed

3.3 sec in total

First Response

161 ms

Resources Loaded

3 sec

Page Rendered

123 ms

theremin.music.uiowa.edu screenshot

About Website

Visit theremin.music.uiowa.edu now to see the best up-to-date Theremin Music U Iowa content for United States and also check out these interesting facts you probably never knew about theremin.music.uiowa.edu

Visit theremin.music.uiowa.edu

Key Findings

We analyzed Theremin.music.uiowa.edu page load time and found that the first response time was 161 ms and then it took 3.1 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

theremin.music.uiowa.edu performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

84/100

25%

SI (Speed Index)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

Network Requests Diagram

theremin.music.uiowa.edu

161 ms

SpryMenuBar.js

896 ms

SpryMenuBarHorizontal.css

1857 ms

emsnewlogo.jpg

45 ms

logo69.jpg

27 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that all of those requests were addressed to Theremin.music.uiowa.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Theremin.music.uiowa.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 97.0 kB (28%)

Content Size

347.7 kB

After Optimization

250.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Theremin.music.uiowa.edu main page is 347.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 304.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 12.4 kB

  • Original 15.5 kB
  • After minification 13.4 kB
  • After compression 3.1 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. This page needs HTML code to be minified as it can gain 2.0 kB, which is 13% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 12.4 kB or 80% of the original size.

Image Optimization

-20%

Potential reduce by 61.8 kB

  • Original 304.9 kB
  • After minification 243.1 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. Obviously, Theremin Music U Iowa needs image optimization as it can save up to 61.8 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-82%

Potential reduce by 17.4 kB

  • Original 21.2 kB
  • After minification 14.5 kB
  • After compression 3.9 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 17.4 kB or 82% of the original size.

CSS Optimization

-90%

Potential reduce by 5.4 kB

  • Original 6.0 kB
  • After minification 2.3 kB
  • After compression 575 B

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. Theremin.music.uiowa.edu needs all CSS files to be minified and compressed as it can save up to 5.4 kB or 90% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

22

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Theremin Music U Iowa. According to our analytics all requests are already optimized.

Network Requests Diagram

theremin.music.uiowa.edu

theremin.music.uiowa.edu

161 ms

SpryMenuBar.js

SpryMenuBar.js

896 ms

SpryMenuBarHorizontal.css

SpryMenuBarHorizontal.css

1857 ms

emsnewlogo.jpg

emsnewlogo.jpg

45 ms

logo69.jpg

logo69.jpg

27 ms

logo136.jpg

logo136.jpg

26 ms

logo26.jpg

logo26.jpg

46 ms

logo78.jpg

logo78.jpg

134 ms

logo32.jpg

logo32.jpg

1019 ms

logo222.jpg

logo222.jpg

997 ms

logo177.jpg

logo177.jpg

49 ms

logo57.jpg

logo57.jpg

48 ms

logo15.jpg

logo15.jpg

67 ms

logo243.jpg

logo243.jpg

60 ms

logo19.jpg

logo19.jpg

59 ms

logo101.jpg

logo101.jpg

78 ms

logo121.jpg

logo121.jpg

80 ms

logo143.jpg

logo143.jpg

81 ms

logo21.jpg

logo21.jpg

100 ms

logo87.jpg

logo87.jpg

104 ms

logo134.jpg

logo134.jpg

105 ms

SpryMenuBarDownHover.gif

SpryMenuBarDownHover.gif

116 ms

SpryMenuBarRightHover.gif

SpryMenuBarRightHover.gif

120 ms

Accessibility Review

theremin.music.uiowa.edu accessibility score

70

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

theremin.music.uiowa.edu best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

theremin.music.uiowa.edu SEO score

58

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Theremin.music.uiowa.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Theremin.music.uiowa.edu 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

theremin.music.uiowa.edu

Open Graph description is not detected on the main page of Theremin Music U Iowa. 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: