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ehe.jhu.edu screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% 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

  • 84

    SEO

    Google-friendlier than
    52% of websites

ehe.jhu.edu

Environmental Health and Engineering | Johns Hopkins | Bloomberg School of Public Health

Page Load Speed

1.5 sec in total

First Response

36 ms

Resources Loaded

684 ms

Page Rendered

758 ms

ehe.jhu.edu screenshot

About Website

Welcome to ehe.jhu.edu homepage info - get ready to check Ehe Jhu best content for United States right away, or after learning these important things about ehe.jhu.edu

We offer undergraduate and graduate degrees in environmental engineering, as well as a range of master's and doctoral degrees in environmental health.

Visit ehe.jhu.edu

Key Findings

We analyzed Ehe.jhu.edu page load time and found that the first response time was 36 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

ehe.jhu.edu performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

48/100

10%

LCP (Largest Contentful Paint)

Value15.5 s

0/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value1,710 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.042

99/100

15%

TTI (Time to Interactive)

Value21.0 s

1/100

10%

Network Requests Diagram

ehe.jhu.edu

36 ms

environmental-health-and-engineering

37 ms

google_tag.script.js

12 ms

css_NhOKIDmsxEbcFBFKbwaZmouB3afnY4RXEAFKZP3f0Kc.css

15 ms

css_wYaWJo7TzbULfJDA11h34r1uVkJpj3nkSJcDgNQfz6U.css

26 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Ehe.jhu.edu, 77% (34 requests) were made to Publichealth.jhu.edu and 11% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (198 ms) relates to the external source Static.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 200.7 kB (13%)

Content Size

1.6 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ehe.jhu.edu main page is 1.6 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 92.9 kB

  • Original 115.9 kB
  • After minification 107.4 kB
  • After compression 23.0 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. 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 92.9 kB or 80% of the original size.

Image Optimization

-10%

Potential reduce by 105.0 kB

  • Original 1.1 MB
  • After minification 974.5 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. Ehe Jhu images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.6 kB

  • Original 231.5 kB
  • After minification 231.5 kB
  • After compression 228.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 168 B

  • Original 135.1 kB
  • After minification 135.1 kB
  • After compression 134.9 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. Ehe.jhu.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 18 (51%)

Requests Now

35

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ehe Jhu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ehe.jhu.edu

ehe.jhu.edu

36 ms

environmental-health-and-engineering

environmental-health-and-engineering

37 ms

google_tag.script.js

google_tag.script.js

12 ms

css_NhOKIDmsxEbcFBFKbwaZmouB3afnY4RXEAFKZP3f0Kc.css

css_NhOKIDmsxEbcFBFKbwaZmouB3afnY4RXEAFKZP3f0Kc.css

15 ms

css_wYaWJo7TzbULfJDA11h34r1uVkJpj3nkSJcDgNQfz6U.css

css_wYaWJo7TzbULfJDA11h34r1uVkJpj3nkSJcDgNQfz6U.css

26 ms

trl_1406_headlines_grid_display_issue_for_group_articles-55ab7857a95bc7c568ab1be5d32286ed.css

trl_1406_headlines_grid_display_issue_for_group_articles-55ab7857a95bc7c568ab1be5d32286ed.css

18 ms

ehe-logo.svg

ehe-logo.svg

23 ms

oembed

oembed

17 ms

js_j498-luwvh1JnrP4udjehydT9qX_-1Dc2V6M1eKa3c4.js

js_j498-luwvh1JnrP4udjehydT9qX_-1Dc2V6M1eKa3c4.js

67 ms

eu_cookie_compliance.min.js

eu_cookie_compliance.min.js

70 ms

js_WFXHgcAK9IeTm0csqmOYwsMAMyD9KhHIuQE2-GHeBek.js

js_WFXHgcAK9IeTm0csqmOYwsMAMyD9KhHIuQE2-GHeBek.js

71 ms

2024envsciranking-ig.png

2024envsciranking-ig.png

73 ms

article-header-narrow-lanes.jpg

article-header-narrow-lanes.jpg

72 ms

cows-pasture.png

cows-pasture.png

76 ms

mouse-sci-amer.png

mouse-sci-amer.png

72 ms

alyssa-sooklal.jpg

alyssa-sooklal.jpg

72 ms

iman-habib-grad.jpg

iman-habib-grad.jpg

74 ms

ehe-chris-billak-spotlight.jpg

ehe-chris-billak-spotlight.jpg

81 ms

css_vkrExwvZlYsx_y0io4je761xj1UehgWrGBj9C1sC5b0.css

css_vkrExwvZlYsx_y0io4je761xj1UehgWrGBj9C1sC5b0.css

64 ms

_s3ug8rxuB0

_s3ug8rxuB0

144 ms

arrow-white.svg

arrow-white.svg

14 ms

arrow-yellow.svg

arrow-yellow.svg

13 ms

icon-linkedin.svg

icon-linkedin.svg

19 ms

icon-facebook.svg

icon-facebook.svg

15 ms

icon-x.svg

icon-x.svg

15 ms

icon-youtube.svg

icon-youtube.svg

17 ms

icon-instagram.svg

icon-instagram.svg

18 ms

logo-jhu.svg

logo-jhu.svg

19 ms

logo-jhsph.png

logo-jhsph.png

17 ms

gtm.js

gtm.js

64 ms

www-player.css

www-player.css

8 ms

www-embed-player.js

www-embed-player.js

23 ms

base.js

base.js

47 ms

ad_status.js

ad_status.js

198 ms

z11oCTbwlFAKI8KumkTaTAUX6Z4Fg2aTjbtQEkv4P98.js

z11oCTbwlFAKI8KumkTaTAUX6Z4Fg2aTjbtQEkv4P98.js

96 ms

embed.js

embed.js

17 ms

Gentona-Book.woff

Gentona-Book.woff

26 ms

Gentona-Bold.woff

Gentona-Bold.woff

25 ms

Quadon-ExtraBold.woff

Quadon-ExtraBold.woff

35 ms

Titling-Gothic-Medium.woff

Titling-Gothic-Medium.woff

25 ms

Quadon-Regular.woff

Quadon-Regular.woff

25 ms

Gentona-SemiBold.woff

Gentona-SemiBold.woff

35 ms

Gentona-Medium.woff

Gentona-Medium.woff

37 ms

id

id

34 ms

Accessibility Review

ehe.jhu.edu 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

ehe.jhu.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

ehe.jhu.edu SEO score

84

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

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 Ehe.jhu.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 Ehe.jhu.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

ehe.jhu.edu

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