Tools & Wizards About Us
retinoblastoma.com screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

retinoblastoma.com

Retinoblastoma | Memorial Sloan Kettering Cancer Center

Page Load Speed

2 sec in total

First Response

61 ms

Resources Loaded

1.3 sec

Page Rendered

597 ms

retinoblastoma.com screenshot

About Website

Visit retinoblastoma.com now to see the best up-to-date Retinoblastoma content and also check out these interesting facts you probably never knew about retinoblastoma.com

Find the latest information on retinoblastoma, and learn how Memorial Sloan Kettering doctors can help.

Visit retinoblastoma.com

Key Findings

We analyzed Retinoblastoma.com page load time and found that the first response time was 61 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

retinoblastoma.com performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

8/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value2,020 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.146

77/100

15%

TTI (Time to Interactive)

Value20.6 s

2/100

10%

Network Requests Diagram

retinoblastoma.com

61 ms

retinoblastoma

151 ms

gtm.js

98 ms

css_XjnWWuBqln5QlWm8JyVsfaDEnUOPeVFuDn3-SLE62p0.css

76 ms

CoveoFullSearch.min.css

40 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Retinoblastoma.com, 32% (21 requests) were made to Mskcc.org and 9% (6 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (372 ms) relates to the external source Siteimproveanalytics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 166.7 kB (31%)

Content Size

541.9 kB

After Optimization

375.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Retinoblastoma.com main page is 541.9 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. 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. HTML takes 231.8 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 165.4 kB

  • Original 231.8 kB
  • After minification 231.7 kB
  • After compression 66.4 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 165.4 kB or 71% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 91.5 kB
  • After minification 91.5 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. Retinoblastoma images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.0 kB

  • Original 82.0 kB
  • After minification 81.8 kB
  • After compression 81.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 259 B

  • Original 136.6 kB
  • After minification 136.6 kB
  • After compression 136.3 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. Retinoblastoma.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 38 (75%)

Requests Now

51

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Retinoblastoma. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

retinoblastoma.com

retinoblastoma.com

61 ms

retinoblastoma

retinoblastoma

151 ms

gtm.js

gtm.js

98 ms

css_XjnWWuBqln5QlWm8JyVsfaDEnUOPeVFuDn3-SLE62p0.css

css_XjnWWuBqln5QlWm8JyVsfaDEnUOPeVFuDn3-SLE62p0.css

76 ms

CoveoFullSearch.min.css

CoveoFullSearch.min.css

40 ms

css_BGhD1bKRvzNfUmP-vQVoii9HG_Br6oLwcoRnDS_mids.css

css_BGhD1bKRvzNfUmP-vQVoii9HG_Br6oLwcoRnDS_mids.css

39 ms

css_5aOhJwwuGK_dblaLkL-w3AJwgNPlfUtvCzwsDh7J5Gk.css

css_5aOhJwwuGK_dblaLkL-w3AJwgNPlfUtvCzwsDh7J5Gk.css

54 ms

js__SuP8TILI-MeJ6GEDD66gFprrBSFZ02krAfbCOxYsU8.js

js__SuP8TILI-MeJ6GEDD66gFprrBSFZ02krAfbCOxYsU8.js

77 ms

CoveoJsSearch.Lazy.min.js

CoveoJsSearch.Lazy.min.js

78 ms

js_0JQF_seVO10jMuuhCn1Vvq63gu76ezIwMIEL0eunrck.js

js_0JQF_seVO10jMuuhCn1Vvq63gu76ezIwMIEL0eunrck.js

77 ms

js_kTnIsBnCm1FKvmucVHjgprnx3zKE0ZwpWn4Q0JTa2XU.js

js_kTnIsBnCm1FKvmucVHjgprnx3zKE0ZwpWn4Q0JTa2XU.js

81 ms

index.min.js

index.min.js

91 ms

js_UNB-gABpuFMB9fhpX95ywDLOPtF-liJmM32FafCiqVQ.js

js_UNB-gABpuFMB9fhpX95ywDLOPtF-liJmM32FafCiqVQ.js

81 ms

css

css

95 ms

search-insights.min.js

search-insights.min.js

124 ms

kids_signature_accent_blue.svg

kids_signature_accent_blue.svg

56 ms

retinoblastoma.jpg

retinoblastoma.jpg

55 ms

3x1.svg

3x1.svg

52 ms

optimize.js

optimize.js

159 ms

analytics.js

analytics.js

168 ms

bat.js

bat.js

231 ms

gtm.js

gtm.js

163 ms

gtm.js

gtm.js

291 ms

iframe_api

iframe_api

229 ms

109638412.js

109638412.js

249 ms

GothamSSm-Medium_Web-5e842534.woff

GothamSSm-Medium_Web-5e842534.woff

95 ms

GothamSSm-Book_Web-2e34e089.woff

GothamSSm-Book_Web-2e34e089.woff

95 ms

GothamSSm-Light_Web-74932b54.woff

GothamSSm-Light_Web-74932b54.woff

95 ms

GothamSSm-Bold_Web-30a3dcee.woff

GothamSSm-Bold_Web-30a3dcee.woff

94 ms

ChronicleSSm-Book_Web-379b2e7c.woff

ChronicleSSm-Book_Web-379b2e7c.woff

96 ms

ChronicleSSm-Medium_Web-b8572aae.woff

ChronicleSSm-Medium_Web-b8572aae.woff

95 ms

ChronicleSSm-Light_Web-e7351697.woff

ChronicleSSm-Light_Web-e7351697.woff

207 ms

ChronicleSSm-Bold_Web-feaf2e64.woff

ChronicleSSm-Bold_Web-feaf2e64.woff

207 ms

MSKBrownWeb-Black-a6a8759f.woff

MSKBrownWeb-Black-a6a8759f.woff

199 ms

linkid.js

linkid.js

69 ms

publisher:getClientId

publisher:getClientId

233 ms

conversion_async.js

conversion_async.js

221 ms

activity;xsp=4705862

activity;xsp=4705862

172 ms

wrapper.js

wrapper.js

164 ms

siteanalyze_510.js

siteanalyze_510.js

372 ms

tv2track.js

tv2track.js

214 ms

activityi;src=4385263;type=Pages0;cat=msk_n0;ord=7524744716357;gtm=2wg9q0;auiddc=1713874641.1664457376;u4=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma;~oref=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma

activityi;src=4385263;type=Pages0;cat=msk_n0;ord=7524744716357;gtm=2wg9q0;auiddc=1713874641.1664457376;u4=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma;~oref=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma

193 ms

activityi;src=10189743;type=hiaction;cat=pagev00;ord=1;num=2417069571838;gtm=2wg9q0;auiddc=1713874641.1664457376;u1=null;~oref=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma

activityi;src=10189743;type=hiaction;cat=pagev00;ord=1;num=2417069571838;gtm=2wg9q0;auiddc=1713874641.1664457376;u1=null;~oref=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma

203 ms

www-widgetapi.js

www-widgetapi.js

126 ms

cnv

cnv

91 ms

js

js

105 ms

js

js

104 ms

ppt=11439;g=page_view_high_intent;gid=33208;ord=9509609777014.703;v=120;ip=54.90.89.239;cuidchk=1

ppt=11439;g=page_view_high_intent;gid=33208;ord=9509609777014.703;v=120;ip=54.90.89.239;cuidchk=1

283 ms

ppt=11439;g=page_view_general;gid=33209;ord=5480968351475.895;v=120;ip=54.90.89.239;cuidchk=1

ppt=11439;g=page_view_general;gid=33209;ord=5480968351475.895;v=120;ip=54.90.89.239;cuidchk=1

242 ms

src=4385263;type=Pages0;cat=msk_n0;ord=7524744716357;gtm=2wg9q0;auiddc=1713874641.1664457376;u4=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma;~oref=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma

src=4385263;type=Pages0;cat=msk_n0;ord=7524744716357;gtm=2wg9q0;auiddc=1713874641.1664457376;u4=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma;~oref=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma

180 ms

collect

collect

168 ms

src=10189743;type=hiaction;cat=pagev00;ord=1;num=2417069571838;gtm=2wg9q0;auiddc=1713874641.1664457376;u1=null;~oref=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma

src=10189743;type=hiaction;cat=pagev00;ord=1;num=2417069571838;gtm=2wg9q0;auiddc=1713874641.1664457376;u1=null;~oref=https%3A%2F%2Fwww.mskcc.org%2Fpediatrics%2Fcancer-care%2Ftypes%2Fretinoblastoma

175 ms

38 ms

tv2track.php

tv2track.php

31 ms

generic

generic

28 ms

74 ms

generic

generic

9 ms

receive

receive

22 ms

image.aspx

image.aspx

11 ms

40 ms

nr-1216.min.js

nr-1216.min.js

44 ms

iFrame.html

iFrame.html

25 ms

collect

collect

25 ms

collect

collect

26 ms

NRJS-065615310a3f12eada6

NRJS-065615310a3f12eada6

63 ms

Accessibility Review

retinoblastoma.com accessibility score

78

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Buttons do not have an accessible name

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

retinoblastoma.com 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

retinoblastoma.com SEO score

91

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

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 Retinoblastoma.com 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 Retinoblastoma.com 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

retinoblastoma.com

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