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Report Summary

  • 26

    Performance

    Renders faster than
    46% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

ehs.ucsd.edu

Page Load Speed

3.4 sec in total

First Response

421 ms

Resources Loaded

2.8 sec

Page Rendered

237 ms

ehs.ucsd.edu screenshot

About Website

Click here to check amazing Ehs Ucsd content for United States. Otherwise, check out these important facts you probably never knew about ehs.ucsd.edu

Our department supports UC San Diego's students, researchers, patients and staff by managing risk and by providing superior services in a responsive and efficient manner. We are dedicated to the promo...

Visit ehs.ucsd.edu

Key Findings

We analyzed Ehs.ucsd.edu page load time and found that the first response time was 421 ms and then it took 3 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

ehs.ucsd.edu performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value19.9 s

0/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value950 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.405

24/100

15%

TTI (Time to Interactive)

Value15.0 s

7/100

10%

Network Requests Diagram

ehs.ucsd.edu

421 ms

ehs.ucsd.edu

311 ms

index.html

336 ms

bootstrap.min.css

331 ms

bootstrap-responsive.min.css

326 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Ehs.ucsd.edu, 49% (20 requests) were made to Blink.ucsd.edu and 17% (7 requests) were made to Ucsd.edu. The less responsive or slowest element that took the longest time to load (649 ms) relates to the external source Cdn.ucsd.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 449.0 kB (66%)

Content Size

679.2 kB

After Optimization

230.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ehs.ucsd.edu main page is 679.2 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. 35% of websites need less resources to load. CSS take 235.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 20.5 kB

  • Original 26.2 kB
  • After minification 22.2 kB
  • After compression 5.7 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 4.0 kB, which is 15% 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 20.5 kB or 78% of the original size.

Image Optimization

-48%

Potential reduce by 99.7 kB

  • Original 206.9 kB
  • After minification 107.3 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, Ehs Ucsd needs image optimization as it can save up to 99.7 kB or 48% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-63%

Potential reduce by 132.4 kB

  • Original 210.4 kB
  • After minification 208.1 kB
  • After compression 78.0 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 132.4 kB or 63% of the original size.

CSS Optimization

-83%

Potential reduce by 196.4 kB

  • Original 235.7 kB
  • After minification 211.6 kB
  • After compression 39.3 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. Ehs.ucsd.edu needs all CSS files to be minified and compressed as it can save up to 196.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (50%)

Requests Now

36

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ehs Ucsd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ehs.ucsd.edu

ehs.ucsd.edu

421 ms

ehs.ucsd.edu

ehs.ucsd.edu

311 ms

index.html

index.html

336 ms

bootstrap.min.css

bootstrap.min.css

331 ms

bootstrap-responsive.min.css

bootstrap-responsive.min.css

326 ms

base-min.css

base-min.css

210 ms

cms-min.css

cms-min.css

143 ms

site-specific.css

site-specific.css

391 ms

base-min.js

base-min.js

350 ms

cms-min.js

cms-min.js

285 ms

bootstrap.min.js

bootstrap.min.js

398 ms

site-specific.js

site-specific.js

148 ms

message.js

message.js

146 ms

jsapi

jsapi

29 ms

brand

brand

41 ms

brand

brand

45 ms

brand

brand

24 ms

brand

brand

21 ms

decorator.js

decorator.js

649 ms

tdr_search2.css

tdr_search2.css

120 ms

sprite_base.png

sprite_base.png

217 ms

emerg_small.png

emerg_small.png

113 ms

enviro_small.png

enviro_small.png

189 ms

fire_small.png

fire_small.png

257 ms

general_small1.png

general_small1.png

241 ms

occupational_small.png

occupational_small.png

190 ms

rad_small.png

rad_small.png

101 ms

lab_small.png

lab_small.png

325 ms

risk_small.png

risk_small.png

222 ms

train_small.png

train_small.png

286 ms

15 ms

default+en.css

default+en.css

3 ms

default+en.I.js

default+en.I.js

8 ms

sprite_icon.png

sprite_icon.png

241 ms

sprite_base.png

sprite_base.png

318 ms

blink_logo2.png

blink_logo2.png

261 ms

downarrow.png

downarrow.png

246 ms

blink-bullet.gif

blink-bullet.gif

301 ms

ga.js

ga.js

15 ms

status.ucsd.edu

status.ucsd.edu

497 ms

__utm.gif

__utm.gif

15 ms

Accessibility Review

ehs.ucsd.edu accessibility score

83

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

ehs.ucsd.edu best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

ehs.ucsd.edu SEO score

82

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

High

Image elements do not have [alt] attributes

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

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ehs.ucsd.edu can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Ehs.ucsd.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

ehs.ucsd.edu

Open Graph description is not detected on the main page of Ehs Ucsd. 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: