Tools & Wizards About Us
chemistry.columbian.gwu.edu screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

chemistry.columbian.gwu.edu

Department of Chemistry | Columbian College of Arts & Sciences | The George Washington University

Page Load Speed

1.3 sec in total

First Response

39 ms

Resources Loaded

788 ms

Page Rendered

441 ms

chemistry.columbian.gwu.edu screenshot

About Website

Click here to check amazing Chemistry Columbian Gwu content for United States. Otherwise, check out these important facts you probably never knew about chemistry.columbian.gwu.edu

In GW’s Department of Chemistry, undergraduate and graduate students learn through hands-on research in analytical, inorganic, organic and physical chemistry.

Visit chemistry.columbian.gwu.edu

Key Findings

We analyzed Chemistry.columbian.gwu.edu page load time and found that the first response time was 39 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

chemistry.columbian.gwu.edu performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.149

76/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

chemistry.columbian.gwu.edu

39 ms

chemistry.columbian.gwu.edu

66 ms

css_BoZ4xAnqKoEJevKLmgjIF3s-G6dRFXbUN007RDTQVzg.css

31 ms

css_adxcA9tx8dtp54GDlnafilBMfBNqqur7Ljh5R0WAeHQ.css

41 ms

css_8pMOt1qb-jJt0LZqNmxMaeO3fhOmT5kLm8ow5pnCmDs.css

56 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 68% of them (32 requests) were addressed to the original Chemistry.columbian.gwu.edu, 11% (5 requests) were made to Use.typekit.net and 6% (3 requests) were made to Static.addtoany.com. The less responsive or slowest element that took the longest time to load (250 ms) relates to the external source Player.vimeo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 59.5 kB (11%)

Content Size

552.6 kB

After Optimization

493.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemistry.columbian.gwu.edu main page is 552.6 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. 55% of websites need less resources to load. Images take 248.5 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 52.9 kB

  • Original 68.4 kB
  • After minification 61.9 kB
  • After compression 15.5 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 52.9 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 5.1 kB

  • Original 248.5 kB
  • After minification 243.4 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. Chemistry Columbian Gwu images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 413 B

  • Original 144.2 kB
  • After minification 144.2 kB
  • After compression 143.8 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

-1%

Potential reduce by 1.0 kB

  • Original 91.4 kB
  • After minification 91.4 kB
  • After compression 90.4 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. Chemistry.columbian.gwu.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 24 (69%)

Requests Now

35

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemistry Columbian Gwu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chemistry.columbian.gwu.edu

chemistry.columbian.gwu.edu

39 ms

chemistry.columbian.gwu.edu

chemistry.columbian.gwu.edu

66 ms

css_BoZ4xAnqKoEJevKLmgjIF3s-G6dRFXbUN007RDTQVzg.css

css_BoZ4xAnqKoEJevKLmgjIF3s-G6dRFXbUN007RDTQVzg.css

31 ms

css_adxcA9tx8dtp54GDlnafilBMfBNqqur7Ljh5R0WAeHQ.css

css_adxcA9tx8dtp54GDlnafilBMfBNqqur7Ljh5R0WAeHQ.css

41 ms

css_8pMOt1qb-jJt0LZqNmxMaeO3fhOmT5kLm8ow5pnCmDs.css

css_8pMOt1qb-jJt0LZqNmxMaeO3fhOmT5kLm8ow5pnCmDs.css

56 ms

js_JbSJiyfTVUJsbMKysdSjESm4HwsY0CTtXHpQfMGEhBo.js

js_JbSJiyfTVUJsbMKysdSjESm4HwsY0CTtXHpQfMGEhBo.js

85 ms

eu_cookie_compliance.min.js

eu_cookie_compliance.min.js

132 ms

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js_pT9bliPYtIPSHe5WfWtca3TzxBjDqo8_G_bqoNwWI1M.js

85 ms

47402d7e9e.js

47402d7e9e.js

102 ms

v4-shims.js

v4-shims.js

98 ms

email-decode.min.js

email-decode.min.js

54 ms

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84 ms

page.js

page.js

120 ms

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104 ms

siteanalyze_67741177.js

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95 ms

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100 ms

gtm.js

gtm.js

111 ms

gtag.js

gtag.js

127 ms

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102 ms

accordion.frontend.min.js

accordion.frontend.min.js

130 ms

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120 ms

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56 ms

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26 ms

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58 ms

oembed

oembed

194 ms

gw-footer-image.png

gw-footer-image.png

49 ms

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27 ms

gw_mono_0_0.png

gw_mono_0_0.png

166 ms

logo-print.png

logo-print.png

41 ms

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CCAS_Chemistry_Hero_Home_1920x840.jpg

22 ms

doodad.svg

doodad.svg

20 ms

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hao_wahlbeck_video_2_1080_x_720.jpg

36 ms

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17 ms

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56 ms

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47 ms

oembed-frame.varbase-media.vimeo.js

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50 ms

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51 ms

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51 ms

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144 ms

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208 ms

Gibson-Regular.woff

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153 ms

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250 ms

api.js

api.js

14 ms

Accessibility Review

chemistry.columbian.gwu.edu accessibility score

90

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

chemistry.columbian.gwu.edu best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

chemistry.columbian.gwu.edu SEO score

93

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

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 Chemistry.columbian.gwu.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 Chemistry.columbian.gwu.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

chemistry.columbian.gwu.edu

Open Graph data is detected on the main page of Chemistry Columbian Gwu. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: