Tools & Wizards About Us

Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

edwinvanderpol.com

Detection, characterization and isolation of extracellular vesicles - Edwin van der Pol

Page Load Speed

2.1 sec in total

First Response

299 ms

Resources Loaded

1.7 sec

Page Rendered

120 ms

About Website

Welcome to edwinvanderpol.com homepage info - get ready to check Edwin Van Der Pol best content right away, or after learning these important things about edwinvanderpol.com

Detection and isolation of extracellular vesicles, such exosomes and microvesicles, with specialized techniques

Visit edwinvanderpol.com

Key Findings

We analyzed Edwinvanderpol.com page load time and found that the first response time was 299 ms and then it took 1.8 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

edwinvanderpol.com performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

61/100

25%

SI (Speed Index)

Value3.5 s

89/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

edwinvanderpol.com

299 ms

edwinvanderpol.com

380 ms

www.edwinvanderpol.com

434 ms

bootstrap.min.css

16 ms

evdp.css

93 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 67% of them (8 requests) were addressed to the original Edwinvanderpol.com, 25% (3 requests) were made to Cdn.jsdelivr.net and 8% (1 request) were made to Kit.fontawesome.com. The less responsive or slowest element that took the longest time to load (464 ms) belongs to the original domain Edwinvanderpol.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 10.1 kB (5%)

Content Size

220.9 kB

After Optimization

210.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Edwinvanderpol.com main page is 220.9 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. Only 10% of websites need less resources to load. Images take 206.5 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 7.6 kB

  • Original 11.0 kB
  • After minification 9.9 kB
  • After compression 3.4 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 7.6 kB or 69% of the original size.

Image Optimization

-0%

Potential reduce by 279 B

  • Original 206.5 kB
  • After minification 206.2 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. Edwin Van Der Pol images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 31 B
  • After minification 31 B
  • After compression 31 B

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

-66%

Potential reduce by 2.3 kB

  • Original 3.4 kB
  • After minification 3.0 kB
  • After compression 1.2 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. Edwinvanderpol.com needs all CSS files to be minified and compressed as it can save up to 2.3 kB or 66% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Edwin Van Der Pol. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

edwinvanderpol.com accessibility score

89

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

edwinvanderpol.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Page has valid source maps

SEO Factors

edwinvanderpol.com 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

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

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 Edwinvanderpol.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 Edwinvanderpol.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

Open Graph description is not detected on the main page of Edwin Van Der Pol. 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: