Tools & Wizards About Us
sloankettering.edu screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

sloankettering.edu

Gerstner Sloan Kettering Graduate School of Biomedical Sciences

Page Load Speed

1.3 sec in total

First Response

48 ms

Resources Loaded

652 ms

Page Rendered

591 ms

sloankettering.edu screenshot

About Website

Click here to check amazing Sloan Kettering content for United States. Otherwise, check out these important facts you probably never knew about sloankettering.edu

The Gerstner Sloan Kettering Graduate School of Biomedical Sciences offers the next generation of basic scientists a program to study the biological sciences through the lens of cancer

Visit sloankettering.edu

Key Findings

We analyzed Sloankettering.edu page load time and found that the first response time was 48 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

sloankettering.edu performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value7.5 s

26/100

10%

TBT (Total Blocking Time)

Value1,500 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.326

35/100

15%

TTI (Time to Interactive)

Value15.0 s

8/100

10%

Network Requests Diagram

sloankettering.edu

48 ms

www.sloankettering.edu

282 ms

gerstner

36 ms

lift.js

39 ms

gtm.js

65 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 69% of them (24 requests) were addressed to the original Sloankettering.edu, 9% (3 requests) were made to Static.cloud.coveo.com and 6% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (282 ms) belongs to the original domain Sloankettering.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 106.1 kB (6%)

Content Size

1.8 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sloankettering.edu main page is 1.8 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 796.2 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 104.4 kB

  • Original 157.9 kB
  • After minification 157.9 kB
  • After compression 53.6 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 104.4 kB or 66% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 796.2 kB
  • After minification 796.2 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. Sloan Kettering images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 331 B

  • Original 728.1 kB
  • After minification 728.1 kB
  • After compression 727.8 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 1.4 kB

  • Original 164.7 kB
  • After minification 164.7 kB
  • After compression 163.3 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. Sloankettering.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (55%)

Requests Now

31

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sloan Kettering. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sloankettering.edu

sloankettering.edu

48 ms

www.sloankettering.edu

www.sloankettering.edu

282 ms

gerstner

gerstner

36 ms

lift.js

lift.js

39 ms

gtm.js

gtm.js

65 ms

gtm.js

gtm.js

162 ms

css_DDVXGauI0KdqYfRSt_FEb9nPKBwwYSM3etIG3JpVho4.css

css_DDVXGauI0KdqYfRSt_FEb9nPKBwwYSM3etIG3JpVho4.css

60 ms

CoveoFullSearch.min.css

CoveoFullSearch.min.css

43 ms

css_EHGzKD-KTRUqgyiwwFB-JS9gNlRTbhXWY70WB7xYwUw.css

css_EHGzKD-KTRUqgyiwwFB-JS9gNlRTbhXWY70WB7xYwUw.css

68 ms

css_4vU8yO8PBkuWiWG0GIhHDUuLin2CE-GeJPNMAaJ7Upg.css

css_4vU8yO8PBkuWiWG0GIhHDUuLin2CE-GeJPNMAaJ7Upg.css

70 ms

js_EyZM5uCuD7rdhyGBISFkXcQ6D3tUMgzU3XHedTCM-9s.js

js_EyZM5uCuD7rdhyGBISFkXcQ6D3tUMgzU3XHedTCM-9s.js

94 ms

CoveoJsSearch.Lazy.min.js

CoveoJsSearch.Lazy.min.js

61 ms

js_6AtSuHRkbUBg5_7rsPQUknJ1tAae3g-FdLskBC_8ik8.js

js_6AtSuHRkbUBg5_7rsPQUknJ1tAae3g-FdLskBC_8ik8.js

96 ms

coveoua.js

coveoua.js

57 ms

js_7Oy1X5xDVpKJtdmcgDaMBbj-2ZJ9Y4NJPURaQCtX8nk.js

js_7Oy1X5xDVpKJtdmcgDaMBbj-2ZJ9Y4NJPURaQCtX8nk.js

93 ms

loader.js

loader.js

57 ms

js_WQgoahEV9znk8frMoQ1kuRqdOxUCXumhjkq23hUjML4.js

js_WQgoahEV9znk8frMoQ1kuRqdOxUCXumhjkq23hUjML4.js

95 ms

js_hccDJ5fLjudPa8nDWk7tKwY7s5aB8pEUBdLZJFc6e00.js

js_hccDJ5fLjudPa8nDWk7tKwY7s5aB8pEUBdLZJFc6e00.js

158 ms

sdk.latest.js

sdk.latest.js

155 ms

js_OoFHOOiPNLYEM_EUaOeXzITeNNUwWvK3HtjTcm5PJsY.js

js_OoFHOOiPNLYEM_EUaOeXzITeNNUwWvK3HtjTcm5PJsY.js

156 ms

css

css

52 ms

gsk-hero_1920x640.jpeg

gsk-hero_1920x640.jpeg

76 ms

gsk_curriculum_1200x800.jpg

gsk_curriculum_1200x800.jpg

49 ms

ski-230803-003-rt-12x8-2.jpeg

ski-230803-003-rt-12x8-2.jpeg

50 ms

dsc_2686-1200x800.jpg

dsc_2686-1200x800.jpg

47 ms

student-studying_1200x800.jpg

student-studying_1200x800.jpg

76 ms

1123213630733880.ekv5ogwlsxkeoid98q0a_height640.png

1123213630733880.ekv5ogwlsxkeoid98q0a_height640.png

49 ms

1200x800-gsk-thumbnail.png

1200x800-gsk-thumbnail.png

82 ms

heller-keshari-230816-050_rt_1200x800.jpg

heller-keshari-230816-050_rt_1200x800.jpg

80 ms

nguyen-chi_190726_05_1200x800.jpg

nguyen-chi_190726_05_1200x800.jpg

81 ms

papaemmanuil_170905_002-1200x800.jpg

papaemmanuil_170905_002-1200x800.jpg

82 ms

170518_358_3x1.jpg

170518_358_3x1.jpg

85 ms

latestnews-gsk-1200x400.jpg

latestnews-gsk-1200x400.jpg

121 ms

heap-69218401.js

heap-69218401.js

36 ms

container.js

container.js

13 ms

Accessibility Review

sloankettering.edu accessibility score

91

Accessibility Issues

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

Buttons do not have an accessible name

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

sloankettering.edu best practices score

83

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

sloankettering.edu SEO score

92

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

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 Sloankettering.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 Sloankettering.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

sloankettering.edu

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