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chemlife.umd.edu screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

chemlife.umd.edu

Home | College of Computer, Mathematical, and Natural Sciences | University of Maryland

Page Load Speed

1 sec in total

First Response

28 ms

Resources Loaded

674 ms

Page Rendered

313 ms

chemlife.umd.edu screenshot

About Website

Welcome to chemlife.umd.edu homepage info - get ready to check Chemlife Umd best content for United States right away, or after learning these important things about chemlife.umd.edu

Visit chemlife.umd.edu

Key Findings

We analyzed Chemlife.umd.edu page load time and found that the first response time was 28 ms and then it took 987 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

chemlife.umd.edu performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.7 s

2/100

10%

LCP (Largest Contentful Paint)

Value24.9 s

0/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value720 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0.458

19/100

15%

TTI (Time to Interactive)

Value19.4 s

2/100

10%

Network Requests Diagram

chemlife.umd.edu

28 ms

science.umd.edu

21 ms

science.umd.edu

34 ms

cmns.umd.edu

54 ms

js

53 ms

Our browser made a total of 143 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Chemlife.umd.edu, 85% (122 requests) were made to Cmns.umd.edu and 5% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (165 ms) relates to the external source Cmns.umd.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (14%)

Content Size

9.1 MB

After Optimization

7.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemlife.umd.edu main page is 9.1 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. Only a small number of websites need less resources to load. Images take 8.3 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 67.2 kB

  • Original 80.1 kB
  • After minification 60.2 kB
  • After compression 12.9 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 19.9 kB, which is 25% 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 67.2 kB or 84% of the original size.

Image Optimization

-11%

Potential reduce by 871.5 kB

  • Original 8.3 MB
  • After minification 7.4 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. Obviously, Chemlife Umd needs image optimization as it can save up to 871.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-38%

Potential reduce by 191.8 kB

  • Original 502.0 kB
  • After minification 494.8 kB
  • After compression 310.2 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 191.8 kB or 38% of the original size.

CSS Optimization

-52%

Potential reduce by 136.3 kB

  • Original 262.9 kB
  • After minification 245.7 kB
  • After compression 126.6 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. Chemlife.umd.edu needs all CSS files to be minified and compressed as it can save up to 136.3 kB or 52% of the original size.

Requests Breakdown

Number of requests can be reduced by 108 (84%)

Requests Now

129

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 129 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemlife Umd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 59 to 1 for JavaScripts and from 51 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chemlife.umd.edu

chemlife.umd.edu

28 ms

science.umd.edu

science.umd.edu

21 ms

science.umd.edu

science.umd.edu

34 ms

cmns.umd.edu

cmns.umd.edu

54 ms

js

js

53 ms

google_tag.script.js

google_tag.script.js

9 ms

ajax-progress.module.css

ajax-progress.module.css

15 ms

align.module.css

align.module.css

25 ms

autocomplete-loading.module.css

autocomplete-loading.module.css

25 ms

fieldgroup.module.css

fieldgroup.module.css

24 ms

container-inline.module.css

container-inline.module.css

24 ms

clearfix.module.css

clearfix.module.css

24 ms

details.module.css

details.module.css

23 ms

hidden.module.css

hidden.module.css

30 ms

item-list.module.css

item-list.module.css

28 ms

js.module.css

js.module.css

29 ms

nowrap.module.css

nowrap.module.css

30 ms

position-container.module.css

position-container.module.css

30 ms

progress.module.css

progress.module.css

28 ms

reset-appearance.module.css

reset-appearance.module.css

32 ms

resize.module.css

resize.module.css

35 ms

sticky-header.module.css

sticky-header.module.css

30 ms

system-status-counter.css

system-status-counter.css

36 ms

system-status-report-counters.css

system-status-report-counters.css

32 ms

system-status-report-general-info.css

system-status-report-general-info.css

37 ms

tabledrag.module.css

tabledrag.module.css

35 ms

tablesort.module.css

tablesort.module.css

35 ms

tree-child.module.css

tree-child.module.css

37 ms

views.module.css

views.module.css

37 ms

filter.caption.css

filter.caption.css

38 ms

tabs.css

tabs.css

38 ms

all.css

all.css

43 ms

v4-shims.css

v4-shims.css

62 ms

settings.css

settings.css

39 ms

layers.css

layers.css

63 ms

navigation.css

navigation.css

46 ms

frontend.css

frontend.css

40 ms

css

css

40 ms

css

css

61 ms

font-awesome.min.css

font-awesome.min.css

44 ms

flaticon.css

flaticon.css

48 ms

animate.css

animate.css

49 ms

owl.carousel.css

owl.carousel.css

64 ms

owl.theme.default.min.css

owl.theme.default.min.css

60 ms

css

css

93 ms

bundle.js

bundle.js

88 ms

prettyPhoto.css

prettyPhoto.css

62 ms

jquery.mb.YTPlayer.min.css

jquery.mb.YTPlayer.min.css

61 ms

magnific-popup.css

magnific-popup.css

55 ms

slick.css

slick.css

51 ms

lightgallery.min.css

lightgallery.min.css

52 ms

lg-transitions.min.css

lg-transitions.min.css

47 ms

bootstrap.css

bootstrap.css

52 ms

template.css

template.css

58 ms

custom.css

custom.css

49 ms

update.css

update.css

63 ms

jquery.min.js

jquery.min.js

64 ms

drupalSettingsLoader.js

drupalSettingsLoader.js

64 ms

drupal.js

drupal.js

63 ms

drupal.init.js

drupal.init.js

65 ms

jquery-migrate.min.js

jquery-migrate.min.js

65 ms

bootstrap.js

bootstrap.js

63 ms

imagesloader.min.js

imagesloader.min.js

65 ms

jquery.easing.js

jquery.easing.js

64 ms

jquery.appear.js

jquery.appear.js

61 ms

jquery.easypiechart.min.js

jquery.easypiechart.min.js

62 ms

owl.carousel.min.js

owl.carousel.min.js

63 ms

waypoint.js

waypoint.js

62 ms

count-to.js

count-to.js

61 ms

masonry.pkgd.min.js

masonry.pkgd.min.js

61 ms

isotope.pkgd.min.js

isotope.pkgd.min.js

63 ms

aos.js

aos.js

61 ms

jpreloader.min.js

jpreloader.min.js

61 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

60 ms

jquery.mb.YTPlayer.min.js

jquery.mb.YTPlayer.min.js

60 ms

jquery.typer.js

jquery.typer.js

54 ms

perfect-scrollbar.jquery.min.js

perfect-scrollbar.jquery.min.js

53 ms

jquery.magnific-popup.min.js

jquery.magnific-popup.min.js

51 ms

slick.min.js

slick.min.js

44 ms

lightgallery.min.js

lightgallery.min.js

42 ms

countdown.js

countdown.js

39 ms

modernizr.custom.js

modernizr.custom.js

39 ms

jquery.cbpQTRotator.min.js

jquery.cbpQTRotator.min.js

37 ms

main.js

main.js

38 ms

jquery.themepunch.tools.min.js

jquery.themepunch.tools.min.js

39 ms

jquery.themepunch.revolution.js

jquery.themepunch.revolution.js

37 ms

revolution.extension.actions.min.js

revolution.extension.actions.min.js

34 ms

revolution.extension.carousel.min.js

revolution.extension.carousel.min.js

36 ms

revolution.extension.kenburn.min.js

revolution.extension.kenburn.min.js

31 ms

css2

css2

30 ms

revolution.extension.layeranimation.min.js

revolution.extension.layeranimation.min.js

20 ms

revolution.extension.migration.min.js

revolution.extension.migration.min.js

77 ms

revolution.extension.navigation.min.js

revolution.extension.navigation.min.js

79 ms

revolution.extension.parallax.min.js

revolution.extension.parallax.min.js

76 ms

revolution.extension.slideanims.min.js

revolution.extension.slideanims.min.js

78 ms

revolution.extension.video.min.js

revolution.extension.video.min.js

76 ms

once.min.js

once.min.js

75 ms

index.umd.min.js

index.umd.min.js

98 ms

tabs.js

tabs.js

96 ms

google_analytics.js

google_analytics.js

95 ms

statistics.js

statistics.js

96 ms

jquery.form.min.js

jquery.form.min.js

96 ms

progress.js

progress.js

98 ms

loadjs.min.js

loadjs.min.js

100 ms

debounce.js

debounce.js

101 ms

announce.js

announce.js

103 ms

message.js

message.js

101 ms

ajax.js

ajax.js

102 ms

base.js

base.js

101 ms

ajax_view.js

ajax_view.js

101 ms

skrollr.min.js

skrollr.min.js

104 ms

main.js

main.js

103 ms

preloader-7.gif

preloader-7.gif

20 ms

UMD_CMNS_Left_Color_1.png

UMD_CMNS_Left_Color_1.png

20 ms

homepage-hero-prof-student-v2-5sv7xq.jpg

homepage-hero-prof-student-v2-5sv7xq.jpg

20 ms

hero-3-student-ambassadors-tbe7u1.jpg

hero-3-student-ambassadors-tbe7u1.jpg

22 ms

homepage-hero-laser-2-3d6s5f.jpg

homepage-hero-laser-2-3d6s5f.jpg

27 ms

homepage-banner-glyco.jpg

homepage-banner-glyco.jpg

165 ms

Drone-video-thumbnail.png

Drone-video-thumbnail.png

33 ms

umd%20neuroscience%20video.webp

umd%20neuroscience%20video.webp

23 ms

thumbnail-logo-noaa.png

thumbnail-logo-noaa.png

29 ms

Chem-building-vertical.jpg

Chem-building-vertical.jpg

28 ms

UMD-informal-square.png

UMD-informal-square.png

30 ms

NASA%20DART%20illustration.jpeg

NASA%20DART%20illustration.jpeg

29 ms

RNA%20strand%20adobe%20stock.jpeg

RNA%20strand%20adobe%20stock.jpeg

34 ms

4-grand-challenges.jpg

4-grand-challenges.jpg

35 ms

ESJ-class-in-session-square.jpg

ESJ-class-in-session-square.jpg

37 ms

DEI-square.jpg

DEI-square.jpg

39 ms

baby-terrapin-square.jpg

baby-terrapin-square.jpg

36 ms

Odyssey-covers-square.jpg

Odyssey-covers-square.jpg

39 ms

UMD_CMNS_Left_Color_W.png

UMD_CMNS_Left_Color_W.png

38 ms

index.css

index.css

34 ms

iJWZBXyIfDnIV5PNhY1KTN7Z-Yh-B4iFV0Uz.woff

iJWZBXyIfDnIV5PNhY1KTN7Z-Yh-B4iFV0Uz.woff

129 ms

iJWZBXyIfDnIV5PNhY1KTN7Z-Yh-NYiFV0Uz.woff

iJWZBXyIfDnIV5PNhY1KTN7Z-Yh-NYiFV0Uz.woff

129 ms

iJWZBXyIfDnIV5PNhY1KTN7Z-Yh-4I-FV0Uz.woff

iJWZBXyIfDnIV5PNhY1KTN7Z-Yh-4I-FV0Uz.woff

128 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

19 ms

pxiByp8kv8JHgFVrLDz8Z1xlEw.woff

pxiByp8kv8JHgFVrLDz8Z1xlEw.woff

19 ms

pxiEyp8kv8JHgFVrJJfedA.woff

pxiEyp8kv8JHgFVrJJfedA.woff

19 ms

pxiByp8kv8JHgFVrLGT9Z1xlEw.woff

pxiByp8kv8JHgFVrLGT9Z1xlEw.woff

20 ms

pxiByp8kv8JHgFVrLCz7Z1xlEw.woff

pxiByp8kv8JHgFVrLCz7Z1xlEw.woff

19 ms

fa-brands-400.woff

fa-brands-400.woff

20 ms

gtm.js

gtm.js

106 ms

loader.gif

loader.gif

28 ms

Accessibility Review

chemlife.umd.edu accessibility score

93

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

Links do not have a discernible name

Best Practices

chemlife.umd.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

chemlife.umd.edu 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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Chemlife.umd.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 Chemlife.umd.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

chemlife.umd.edu

Open Graph description is not detected on the main page of Chemlife Umd. 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: