Tools & Wizards About Us
blausen.com screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

blausen.com

Blausen Medical: The source and creator of the world's large...

Page Load Speed

806 ms in total

First Response

56 ms

Resources Loaded

624 ms

Page Rendered

126 ms

blausen.com screenshot

About Website

Click here to check amazing Blausen content for Morocco. Otherwise, check out these important facts you probably never knew about blausen.com

Blausen Medical is a medical and scientific animation and illustration company that offers Pharmaceutical, Biotechnology, Healthcare, Energy, and Fina...

Visit blausen.com

Key Findings

We analyzed Blausen.com page load time and found that the first response time was 56 ms and then it took 750 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

blausen.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

53/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value1,730 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value13.0 s

13/100

10%

Network Requests Diagram

blausen.com

56 ms

sitesecurityaccess.aspx

3 ms

sitesecurityaccess.aspx

23 ms

css

36 ms

style.css

50 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 57% of them (17 requests) were addressed to the original Blausen.com, 17% (5 requests) were made to Youtube.com and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (139 ms) relates to the external source Static.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 70.5 kB (7%)

Content Size

1.0 MB

After Optimization

935.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blausen.com main page is 1.0 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 636.0 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 10.5 kB

  • Original 15.2 kB
  • After minification 13.5 kB
  • After compression 4.7 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 1.8 kB, which is 12% 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 10.5 kB or 69% of the original size.

Image Optimization

-0%

Potential reduce by 1.3 kB

  • Original 636.0 kB
  • After minification 634.8 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. Blausen images are well optimized though.

JavaScript Optimization

-18%

Potential reduce by 49.4 kB

  • Original 273.4 kB
  • After minification 273.4 kB
  • After compression 224.1 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 49.4 kB or 18% of the original size.

CSS Optimization

-12%

Potential reduce by 9.3 kB

  • Original 80.9 kB
  • After minification 80.9 kB
  • After compression 71.5 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. Blausen.com needs all CSS files to be minified and compressed as it can save up to 9.3 kB or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (35%)

Requests Now

26

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blausen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

blausen.com

blausen.com

56 ms

sitesecurityaccess.aspx

sitesecurityaccess.aspx

3 ms

sitesecurityaccess.aspx

sitesecurityaccess.aspx

23 ms

css

css

36 ms

style.css

style.css

50 ms

jquery-2.1.4.min.js

jquery-2.1.4.min.js

69 ms

perfect-scrollbar.jquery.js

perfect-scrollbar.jquery.js

47 ms

common.js

common.js

19 ms

TmGo1I7duoY

TmGo1I7duoY

99 ms

headerOp.png

headerOp.png

4 ms

logo.png

logo.png

4 ms

aboutPage.jpg

aboutPage.jpg

47 ms

footer.gif

footer.gif

46 ms

logoFooter.png

logoFooter.png

43 ms

fb.png

fb.png

43 ms

gp.png

gp.png

44 ms

tw.png

tw.png

46 ms

yo.png

yo.png

54 ms

in.png

in.png

54 ms

font

font

53 ms

fbevents.js

fbevents.js

42 ms

analytics.js

analytics.js

74 ms

www-player.css

www-player.css

21 ms

www-embed-player.js

www-embed-player.js

42 ms

base.js

base.js

68 ms

collect

collect

48 ms

ad_status.js

ad_status.js

139 ms

lA2ntTx-2QuHkXZslM9sAF03Z9lhVUC55dA1orjIb5A.js

lA2ntTx-2QuHkXZslM9sAF03Z9lhVUC55dA1orjIb5A.js

106 ms

embed.js

embed.js

31 ms

id

id

26 ms

Accessibility Review

blausen.com accessibility score

74

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

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Form elements do not have associated labels

Best Practices

blausen.com 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

High

Page has valid source maps

SEO Factors

blausen.com SEO score

88

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blausen.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Blausen.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

blausen.com

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