Tools & Wizards About Us

Report Summary

  • 4

    Performance

    Renders faster than
    20% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

datos.gob.es

Datos abiertos del Gobierno de España – Datos.gob.es

Page Load Speed

6.5 sec in total

First Response

206 ms

Resources Loaded

4.8 sec

Page Rendered

1.5 sec

About Website

Welcome to datos.gob.es homepage info - get ready to check Datos best content for Spain right away, or after learning these important things about datos.gob.es

Datos abiertos del Gobierno de España para la apertura de la información pública y desarrollo de servicios avanzados basados en datos. Es promovida por el Ministerio para la Transformación Digital y d...

Visit datos.gob.es

Key Findings

We analyzed Datos.gob.es page load time and found that the first response time was 206 ms and then it took 6.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

datos.gob.es performance score

4

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value15.6 s

0/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value13,520 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.447

20/100

15%

TTI (Time to Interactive)

Value31.2 s

0/100

10%

Network Requests Diagram

datos.gob.es

206 ms

436 ms

css_xuTm7hMrp1TLYwDHGXlSA0Ljk0gK20EgobWPtlMh5Eo.css

316 ms

css_QY595F-OoIPbqRHYhOydK1Ln0CXEcnJX8oaOA_bkIBI.css

318 ms

css_cNX27RUOHrtd7VgGLqWM-1ToAwKzT-2dVengfO6Xyxc.css

323 ms

Our browser made a total of 148 requests to load all elements on the main page. We found that 97% of them (143 requests) were addressed to the original Datos.gob.es, 1% (2 requests) were made to Googletagmanager.com and 1% (1 request) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Datos.gob.es.

Page Optimization Overview & Recommendations

Page size can be reduced by 566.0 kB (10%)

Content Size

5.6 MB

After Optimization

5.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Datos.gob.es main page is 5.6 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. 65% of websites need less resources to load. Images take 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 84.3 kB

  • Original 105.5 kB
  • After minification 98.2 kB
  • After compression 21.2 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 84.3 kB or 80% of the original size.

Image Optimization

-9%

Potential reduce by 466.5 kB

  • Original 5.3 MB
  • After minification 4.8 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. Datos images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 14.8 kB

  • Original 142.7 kB
  • After minification 142.7 kB
  • After compression 127.9 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 390 B

  • Original 57.9 kB
  • After minification 57.9 kB
  • After compression 57.5 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. Datos.gob.es has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 30 (23%)

Requests Now

132

After Optimization

102

  • Images
  • JavaScript
  • CSS

The browser has sent 132 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Datos. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

datos.gob.es accessibility score

89

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

[role]s are not contained by their required parent element

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

datos.gob.es best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

datos.gob.es SEO score

77

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

Links do not have descriptive text

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

    ES

  • Language Claimed

    ES

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Datos.gob.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 Datos.gob.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

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