Tools & Wizards About Us
gero.usc.edu screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    76% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

gero.usc.edu

The USC Leonard Davis School of Gerontology

Page Load Speed

4.3 sec in total

First Response

1.2 sec

Resources Loaded

2.7 sec

Page Rendered

370 ms

gero.usc.edu screenshot

About Website

Welcome to gero.usc.edu homepage info - get ready to check Gero USC best content for United States right away, or after learning these important things about gero.usc.edu

Gerontology, the study of aging across the lifespan, allows you to discover new ways of seeing — and changing — the world.

Visit gero.usc.edu

Key Findings

We analyzed Gero.usc.edu page load time and found that the first response time was 1.2 sec and then it took 3.1 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

gero.usc.edu performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value5.2 s

59/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.1

90/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

gero.usc.edu

1237 ms

wp-emoji-release.min.js

78 ms

social_comments.css

150 ms

style.css

151 ms

font-awesome.min.css

10 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 80% of them (47 requests) were addressed to the original Gero.usc.edu, 5% (3 requests) were made to Google-analytics.com and 3% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Gero.usc.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 591.7 kB (43%)

Content Size

1.4 MB

After Optimization

781.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Gero.usc.edu main page is 1.4 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. 50% of websites need less resources to load. Images take 618.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 59.9 kB

  • Original 71.5 kB
  • After minification 67.3 kB
  • After compression 11.7 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. 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 59.9 kB or 84% of the original size.

Image Optimization

-5%

Potential reduce by 28.3 kB

  • Original 618.7 kB
  • After minification 590.4 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. Gero USC images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 378.6 kB

  • Original 540.3 kB
  • After minification 529.5 kB
  • After compression 161.7 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 378.6 kB or 70% of the original size.

CSS Optimization

-88%

Potential reduce by 125.0 kB

  • Original 142.7 kB
  • After minification 84.8 kB
  • After compression 17.8 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. Gero.usc.edu needs all CSS files to be minified and compressed as it can save up to 125.0 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (44%)

Requests Now

52

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gero 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 17 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

gero.usc.edu

gero.usc.edu

1237 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

78 ms

social_comments.css

social_comments.css

150 ms

style.css

style.css

151 ms

font-awesome.min.css

font-awesome.min.css

10 ms

css

css

25 ms

style-compiled.css

style-compiled.css

166 ms

mobile.nav.frontend.css

mobile.nav.frontend.css

153 ms

default.css

default.css

151 ms

jquery.js

jquery.js

179 ms

jquery-migrate.min.js

jquery-migrate.min.js

242 ms

jquery.sidr.js

jquery.sidr.js

244 ms

navigation.js

navigation.js

261 ms

bootstrap.min.js

bootstrap.min.js

303 ms

custom.js

custom.js

260 ms

skip-link-focus-fix.js

skip-link-focus-fix.js

310 ms

comment-reply.min.js

comment-reply.min.js

323 ms

jquery.transit.min.js

jquery.transit.min.js

315 ms

jquery.touchwipe.min.js

jquery.touchwipe.min.js

313 ms

mobile.nav.frontend.js

mobile.nav.frontend.js

321 ms

jquery-ui-1.9.0.custom.min.js

jquery-ui-1.9.0.custom.min.js

411 ms

jquery-ui-tabs-rotate.js

jquery-ui-tabs-rotate.js

322 ms

analytics.js

analytics.js

22 ms

collect

collect

136 ms

bg-main.jpg

bg-main.jpg

139 ms

logo-top-usc.jpg

logo-top-usc.jpg

158 ms

logo.png

logo.png

145 ms

John-Tower-Gus-Ruelas-2016-158x94.jpg

John-Tower-Gus-Ruelas-2016-158x94.jpg

142 ms

4-158x94.jpg

4-158x94.jpg

157 ms

brain-locus-coeruleus-hi-res-158x94.jpg

brain-locus-coeruleus-hi-res-158x94.jpg

318 ms

CLL-158x94.jpg

CLL-158x94.jpg

320 ms

Margaret-Halvorson-header-image-158x94.jpg

Margaret-Halvorson-header-image-158x94.jpg

320 ms

cohenzelinski-frontpage-158x94.jpg

cohenzelinski-frontpage-158x94.jpg

321 ms

bg-btn-lg.png

bg-btn-lg.png

320 ms

John-Tower-Gus-Ruelas-2016-657x383.jpg

John-Tower-Gus-Ruelas-2016-657x383.jpg

379 ms

4-657x383.jpg

4-657x383.jpg

361 ms

brain-locus-coeruleus-hi-res-657x383.jpg

brain-locus-coeruleus-hi-res-657x383.jpg

371 ms

CLL-657x383.jpg

CLL-657x383.jpg

369 ms

Margaret-Halvorson-header-image-657x383.jpg

Margaret-Halvorson-header-image-657x383.jpg

324 ms

cohenzelinski-frontpage-657x383.jpg

cohenzelinski-frontpage-657x383.jpg

374 ms

bg-stripes.png

bg-stripes.png

378 ms

ph-call-1-365x219.jpg

ph-call-1-365x219.jpg

439 ms

bg-btn.png

bg-btn.png

445 ms

ph-dean-365x219.jpg

ph-dean-365x219.jpg

522 ms

ph-call-3-365x219.jpg

ph-call-3-365x219.jpg

450 ms

test-img-dion-389x248.png

test-img-dion-389x248.png

594 ms

logo-footer.png

logo-footer.png

456 ms

525049.js

525049.js

278 ms

collect

collect

24 ms

zhcz-_WihjSQC0oHJ9TCYC3USBnSvpkopQaUR-2r7iU.ttf

zhcz-_WihjSQC0oHJ9TCYC3USBnSvpkopQaUR-2r7iU.ttf

32 ms

National-Regular_gdi.woff

National-Regular_gdi.woff

463 ms

National_gdi.svg

National_gdi.svg

1119 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

549 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

4 ms

webfont.js

webfont.js

22 ms

css

css

13 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

11 ms

selected-item.png

selected-item.png

230 ms

__ptq.gif

__ptq.gif

14 ms

Accessibility Review

gero.usc.edu accessibility score

88

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-hidden="true"] elements contain focusable descendents

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

gero.usc.edu best practices score

75

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

SEO Factors

gero.usc.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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Gero.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 Gero.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

gero.usc.edu

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