Tools & Wizards About Us
onlinelearning.hms.harvard.edu screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

onlinelearning.hms.harvard.edu

Online Medical Learning - HMX | Harvard Medical School

Page Load Speed

2.4 sec in total

First Response

113 ms

Resources Loaded

1.7 sec

Page Rendered

665 ms

onlinelearning.hms.harvard.edu screenshot

About Website

Welcome to onlinelearning.hms.harvard.edu homepage info - get ready to check Online Learning Hms Harvard best content for United States right away, or after learning these important things about onlinelearning.hms.harvard.edu

Learn online with Harvard Medical School. HMX online courses help students and professionals excel in health care, biotechnology, and beyond.

Visit onlinelearning.hms.harvard.edu

Key Findings

We analyzed Onlinelearning.hms.harvard.edu page load time and found that the first response time was 113 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

onlinelearning.hms.harvard.edu performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

3/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value810 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0.023

100/100

15%

TTI (Time to Interactive)

Value19.1 s

3/100

10%

Network Requests Diagram

onlinelearning.hms.harvard.edu

113 ms

215 ms

dl-wrapper.js

31 ms

dl-implementation-hmx.js

33 ms

style.min.css

14 ms

Our browser made a total of 104 requests to load all elements on the main page. We found that 15% of them (16 requests) were addressed to the original Onlinelearning.hms.harvard.edu, 63% (66 requests) were made to Cdnw.onlinelearning.hms.harvard.edu and 6% (6 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (251 ms) relates to the external source Google-analytics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 462.8 kB (14%)

Content Size

3.4 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Onlinelearning.hms.harvard.edu main page is 3.4 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. 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 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 82.9 kB

  • Original 101.9 kB
  • After minification 99.0 kB
  • After compression 19.0 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 82.9 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 138.9 kB

  • Original 2.9 MB
  • After minification 2.8 MB

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. Online Learning Hms Harvard images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 100.7 kB

  • Original 191.7 kB
  • After minification 191.1 kB
  • After compression 91.0 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 100.7 kB or 53% of the original size.

CSS Optimization

-89%

Potential reduce by 140.3 kB

  • Original 158.3 kB
  • After minification 114.9 kB
  • After compression 18.1 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. Onlinelearning.hms.harvard.edu needs all CSS files to be minified and compressed as it can save up to 140.3 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (44%)

Requests Now

98

After Optimization

55

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Online Learning Hms Harvard. 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 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

onlinelearning.hms.harvard.edu

onlinelearning.hms.harvard.edu

113 ms

215 ms

dl-wrapper.js

dl-wrapper.js

31 ms

dl-implementation-hmx.js

dl-implementation-hmx.js

33 ms

style.min.css

style.min.css

14 ms

hmx-custom-shortcodes.css

hmx-custom-shortcodes.css

12 ms

fonts.css

fonts.css

12 ms

17 ms

normalize.css

normalize.css

44 ms

style.css

style.css

16 ms

responsive.css

responsive.css

45 ms

modernizr-custom.min.js

modernizr-custom.min.js

49 ms

jquery.min.js

jquery.min.js

17 ms

api.js

api.js

43 ms

comment-reply.min.js

comment-reply.min.js

14 ms

skrollr.min.js

skrollr.min.js

19 ms

jquery.mobile.custom.min.js

jquery.mobile.custom.min.js

44 ms

main.js

main.js

47 ms

plugins.js

plugins.js

48 ms

ws_skrollr_init.js

ws_skrollr_init.js

17 ms

gtm.js

gtm.js

109 ms

recaptcha__en.js

recaptcha__en.js

46 ms

logo_harvard-HMX.svg

logo_harvard-HMX.svg

17 ms

img_home_hero_1434w.jpg

img_home_hero_1434w.jpg

21 ms

gr_hero_overlay.svg

gr_hero_overlay.svg

22 ms

gr_arrow-right-green.svg

gr_arrow-right-green.svg

16 ms

gr_arrow-right-white.svg

gr_arrow-right-white.svg

96 ms

gr_arrow-down-green.svg

gr_arrow-down-green.svg

20 ms

gr_arrow-down-darkblue.svg

gr_arrow-down-darkblue.svg

20 ms

icon_person.svg

icon_person.svg

16 ms

img_true-to-life_1_960.jpg

img_true-to-life_1_960.jpg

22 ms

img_true-to-life_2_960.jpg

img_true-to-life_2_960.jpg

23 ms

img_true-to-life_3_960.jpg

img_true-to-life_3_960.jpg

26 ms

img_true-to-life_4_960.jpg

img_true-to-life_4_960.jpg

26 ms

img_true-to-life_5_960.jpg

img_true-to-life_5_960.jpg

28 ms

img_true-to-life_6_960.jpg

img_true-to-life_6_960.jpg

25 ms

img_true-to-life_7_960.jpg

img_true-to-life_7_960.jpg

26 ms

img_true-to-life_8_960.jpg

img_true-to-life_8_960.jpg

31 ms

img_true-to-life_9_960.jpg

img_true-to-life_9_960.jpg

31 ms

img_true-to-life_10_960.jpg

img_true-to-life_10_960.jpg

32 ms

icon_animations.svg

icon_animations.svg

30 ms

img_dynamic-animations_3_960.jpg

img_dynamic-animations_3_960.jpg

32 ms

img_dynamic-animations_4_960.jpg

img_dynamic-animations_4_960.jpg

75 ms

img_dynamic-animations_5_960.jpg

img_dynamic-animations_5_960.jpg

74 ms

icon_concept.svg

icon_concept.svg

135 ms

img_concept-videos_blood-cells_960.jpg

img_concept-videos_blood-cells_960.jpg

75 ms

img_concept-videos_dogma_960.png

img_concept-videos_dogma_960.png

76 ms

img_concept-videos_labels_960.png

img_concept-videos_labels_960.png

78 ms

icon_mouse.svg

icon_mouse.svg

77 ms

img_dive_interactive_00ft.jpg

img_dive_interactive_00ft.jpg

78 ms

img_dive_interactive_10ft.jpg

img_dive_interactive_10ft.jpg

79 ms

img_dive_interactive_20ft.jpg

img_dive_interactive_20ft.jpg

78 ms

img_dive_interactive_30ft.jpg

img_dive_interactive_30ft.jpg

79 ms

img_dive_interactive_40ft.jpg

img_dive_interactive_40ft.jpg

80 ms

img_dive_interactive_50ft.jpg

img_dive_interactive_50ft.jpg

80 ms

img_dive_interactive_60ft.jpg

img_dive_interactive_60ft.jpg

80 ms

img_dive_interactive_70ft.jpg

img_dive_interactive_70ft.jpg

81 ms

img_dive_interactive_80ft.jpg

img_dive_interactive_80ft.jpg

82 ms

img_dive_interactive_90ft.jpg

img_dive_interactive_90ft.jpg

83 ms

video_play.png

video_play.png

17 ms

img_fold2_video_2.jpg

img_fold2_video_2.jpg

23 ms

1331.js

1331.js

83 ms

img_dive_interactive_100ft.jpg

img_dive_interactive_100ft.jpg

71 ms

img_dive_interactive_110ft.jpg

img_dive_interactive_110ft.jpg

68 ms

img_dive_interactive_120ft.jpg

img_dive_interactive_120ft.jpg

69 ms

img_dive_interactive_130ft.jpg

img_dive_interactive_130ft.jpg

66 ms

img_dive_interactive_140ft.jpg

img_dive_interactive_140ft.jpg

68 ms

img_dive_interactive_150ft.jpg

img_dive_interactive_150ft.jpg

215 ms

icon_heart.svg

icon_heart.svg

64 ms

img_clinical-app-ICU_960.jpg

img_clinical-app-ICU_960.jpg

64 ms

img_clinical-app-allergy_960.jpg

img_clinical-app-allergy_960.jpg

63 ms

img_clinical-app-merola_960.jpg

img_clinical-app-merola_960.jpg

210 ms

icon_star.svg

icon_star.svg

65 ms

gr_quizzes_graph.png

gr_quizzes_graph.png

62 ms

icon_notes.svg

icon_notes.svg

62 ms

img_notetaking-guides1_960.jpg

img_notetaking-guides1_960.jpg

62 ms

img_notetaking-guides2_960.jpg

img_notetaking-guides2_960.jpg

60 ms

img_notetaking-guides3_960.jpg

img_notetaking-guides3_960.jpg

61 ms

gr_arrow-right-darkblue.svg

gr_arrow-right-darkblue.svg

62 ms

logo_footer.png

logo_footer.png

60 ms

icon_facebook.png

icon_facebook.png

58 ms

icon_twitter.png

icon_twitter.png

58 ms

icon_instagram.png

icon_instagram.png

58 ms

icon_linkedin.png

icon_linkedin.png

57 ms

bat.js

bat.js

96 ms

gtm.js

gtm.js

75 ms

gtm.js

gtm.js

93 ms

250_vdef_emp_ba9.woff

250_vdef_emp_ba9.woff

120 ms

2E4AF2_3_0.woff

2E4AF2_3_0.woff

20 ms

2E4AF2_6_0.woff

2E4AF2_6_0.woff

19 ms

js

js

60 ms

js

js

177 ms

analytics.js

analytics.js

251 ms

destination

destination

248 ms

insight.min.js

insight.min.js

247 ms

fbevents.js

fbevents.js

236 ms

27001976.js

27001976.js

208 ms

102 ms

collect

collect

48 ms

collect

collect

51 ms

1324631824284764

1324631824284764

55 ms

17 ms

116026588849778

116026588849778

73 ms

gr_scroll-indicator.png

gr_scroll-indicator.png

59 ms

Accessibility Review

onlinelearning.hms.harvard.edu accessibility score

92

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

Best Practices

onlinelearning.hms.harvard.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

SEO Factors

onlinelearning.hms.harvard.edu SEO score

99

Search Engine Optimization Advices

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 Onlinelearning.hms.harvard.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 Onlinelearning.hms.harvard.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

onlinelearning.hms.harvard.edu

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