Tools & Wizards About Us
cnio.es screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

cnio.es

Centro Nacional de Investigaciones Oncológicas - CNIO

Page Load Speed

3.9 sec in total

First Response

721 ms

Resources Loaded

2.9 sec

Page Rendered

341 ms

cnio.es screenshot

About Website

Visit cnio.es now to see the best up-to-date CNIO content for Spain and also check out these interesting facts you probably never knew about cnio.es

Somos un Centro Público cuya Misión Principal es la Investigación del Cáncer y trasladar la tecnología innovadora al Sistema Nacional de Salud.

Visit cnio.es

Key Findings

We analyzed Cnio.es page load time and found that the first response time was 721 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

cnio.es performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value1.166

1/100

15%

TTI (Time to Interactive)

Value8.7 s

36/100

10%

Network Requests Diagram

www.cnio.es

721 ms

style.css

199 ms

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53 ms

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54 ms

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53 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 73% of them (33 requests) were addressed to the original Cnio.es, 22% (10 requests) were made to and 2% (1 request) were made to Malsup.github.io. The less responsive or slowest element that took the longest time to load (721 ms) belongs to the original domain Cnio.es.

Page Optimization Overview & Recommendations

Page size can be reduced by 464.4 kB (49%)

Content Size

943.4 kB

After Optimization

479.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cnio.es main page is 943.4 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. 60% of websites need less resources to load. HTML takes 574.8 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 463.8 kB

  • Original 574.8 kB
  • After minification 573.1 kB
  • After compression 111.0 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 463.8 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 288.3 kB
  • After minification 288.3 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. CNIO images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 191 B

  • Original 45.9 kB
  • After minification 45.9 kB
  • After compression 45.7 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 454 B

  • Original 34.4 kB
  • After minification 34.1 kB
  • After compression 34.0 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. Cnio.es has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 23 (85%)

Requests Now

27

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CNIO. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.cnio.es

www.cnio.es

721 ms

style.css

style.css

199 ms

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53 ms

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54 ms

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53 ms

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Accessibility Review

cnio.es accessibility score

93

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.

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

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

cnio.es 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

Low

Detected JavaScript libraries

SEO Factors

cnio.es SEO score

97

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

    ES

  • Language Claimed

    ES

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cnio.es can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and it matches the claimed language. Our system also found out that Cnio.es 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

cnio.es

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