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chemmac1.usc.edu screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

chemmac1.usc.edu

Home - Department of Chemistry

Page Load Speed

3.4 sec in total

First Response

49 ms

Resources Loaded

2.1 sec

Page Rendered

1.3 sec

chemmac1.usc.edu screenshot

About Website

Welcome to chemmac1.usc.edu homepage info - get ready to check Chemmac 1 Usc best content for United States right away, or after learning these important things about chemmac1.usc.edu

USC Dornsife Department of Chemistry

Visit chemmac1.usc.edu

Key Findings

We analyzed Chemmac1.usc.edu page load time and found that the first response time was 49 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

chemmac1.usc.edu performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value6.2 s

44/100

10%

TBT (Total Blocking Time)

Value560 ms

52/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

Network Requests Diagram

49 ms

style.min.css

19 ms

fbh1bau.css

30 ms

css2

80 ms

style.css

31 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Chemmac1.usc.edu, 15% (8 requests) were made to Fonts.gstatic.com and 8% (4 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (766 ms) relates to the external source Chem.usc.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 973.3 kB (43%)

Content Size

2.3 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemmac1.usc.edu main page is 2.3 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. Images take 822.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 267.4 kB

  • Original 345.3 kB
  • After minification 305.7 kB
  • After compression 78.0 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. This page needs HTML code to be minified as it can gain 39.6 kB, which is 11% 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 267.4 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 13.1 kB

  • Original 822.6 kB
  • After minification 809.5 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. Chemmac 1 Usc images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 23.0 kB

  • Original 332.6 kB
  • After minification 332.6 kB
  • After compression 309.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-89%

Potential reduce by 669.8 kB

  • Original 750.7 kB
  • After minification 597.9 kB
  • After compression 80.9 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. Chemmac1.usc.edu needs all CSS files to be minified and compressed as it can save up to 669.8 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (76%)

Requests Now

41

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemmac 1 Usc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

49 ms

style.min.css

style.min.css

19 ms

fbh1bau.css

fbh1bau.css

30 ms

css2

css2

80 ms

style.css

style.css

31 ms

lity.min.css

lity.min.css

30 ms

swiper-bundle.min.css

swiper-bundle.min.css

25 ms

jquery.min.js

jquery.min.js

71 ms

jquery.once.min.js

jquery.once.min.js

73 ms

what-input.min.js

what-input.min.js

71 ms

ally.min.js

ally.min.js

72 ms

lazysizes.min.js

lazysizes.min.js

73 ms

jquery.hoverIntent.min.js

jquery.hoverIntent.min.js

73 ms

imagesloaded.pkgd.min.js

imagesloaded.pkgd.min.js

75 ms

DP.min.js

DP.min.js

79 ms

main-menu.min.js

main-menu.min.js

80 ms

dci-menu.min.js

dci-menu.min.js

80 ms

header.min.js

header.min.js

80 ms

utility-menu.min.js

utility-menu.min.js

79 ms

news-filter.min.js

news-filter.min.js

79 ms

notification-banner.js

notification-banner.js

236 ms

hero-minisite.min.js

hero-minisite.min.js

241 ms

rich-text.min.js

rich-text.min.js

240 ms

swiper-bundle.min.js

swiper-bundle.min.js

238 ms

news-by-topics.min.js

news-by-topics.min.js

241 ms

lity.min.js

lity.min.js

238 ms

social-and-media-promo.min.js

social-and-media-promo.min.js

247 ms

p.css

p.css

57 ms

gtm.js

gtm.js

240 ms

google-dept_08-2022.php

google-dept_08-2022.php

766 ms

03.08.2024-SPECIAL-SEMINAR-768x768.png

03.08.2024-SPECIAL-SEMINAR-768x768.png

168 ms

03.06.2024-organic-seminar-768x768.png

03.06.2024-organic-seminar-768x768.png

166 ms

03.05.2024-inorganic-seminar-768x768.png

03.05.2024-inorganic-seminar-768x768.png

165 ms

Dr.-Prakash-768x768.jpg

Dr.-Prakash-768x768.jpg

166 ms

alert

alert

37 ms

USC-Dornsife-10-768x432.jpg

USC-Dornsife-10-768x432.jpg

54 ms

usc-dornsife-9-banner-768x450.jpg

usc-dornsife-9-banner-768x450.jpg

94 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rAkA.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rAkA.ttf

85 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vAkA.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vAkA.ttf

164 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nAkA.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nAkA.ttf

173 ms

6xK3dSBYKcSV-LCoeQqfX1RYOo3aPw.ttf

6xK3dSBYKcSV-LCoeQqfX1RYOo3aPw.ttf

198 ms

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29 ms

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45 ms

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81 ms

6xK1dSBYKcSV-LCoeQqfX1RYOo3qPa7g.ttf

6xK1dSBYKcSV-LCoeQqfX1RYOo3qPa7g.ttf

198 ms

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZY4lBdr.ttf

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZY4lBdr.ttf

173 ms

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZZclRdr.ttf

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZZclRdr.ttf

197 ms

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZZklxdr.ttf

6xKwdSBYKcSV-LCoeQqfX1RYOo3qPZZklxdr.ttf

172 ms

client.js

client.js

27 ms

custom_calendar_dept.css

custom_calendar_dept.css

34 ms

rs=ABFko3-Ld4362n5vV-Q4HmEgyGBwTeZaBA

rs=ABFko3-Ld4362n5vV-Q4HmEgyGBwTeZaBA

16 ms

m=embed

m=embed

7 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

8 ms

Accessibility Review

chemmac1.usc.edu accessibility score

98

Accessibility Issues

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

Links do not have a discernible name

Best Practices

chemmac1.usc.edu best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

chemmac1.usc.edu 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 Chemmac1.usc.edu 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 Chemmac1.usc.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

chemmac1.usc.edu

Open Graph description is not detected on the main page of Chemmac 1 Usc. 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: