Tools & Wizards About Us

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

cervantesvirtual.com

Biblioteca Virtual Miguel de Cervantes | Inicio

Page Load Speed

3.7 sec in total

First Response

470 ms

Resources Loaded

2.3 sec

Page Rendered

874 ms

About Website

Visit cervantesvirtual.com now to see the best up-to-date Cervantes Virtual content for Spain and also check out these interesting facts you probably never knew about cervantesvirtual.com

La Biblioteca Virtual Miguel de Cervantes, la primera en lengua castellana, es un fondo bibliográfico con obras de Literatura, Historia, Ciencias, etc., de libre acceso. Incluye trabajos de investigac...

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Key Findings

We analyzed Cervantesvirtual.com page load time and found that the first response time was 470 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 60% of websites can load faster.

Performance Metrics

cervantesvirtual.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

28/100

25%

SI (Speed Index)

Value5.9 s

47/100

10%

TBT (Total Blocking Time)

Value710 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.4 s

24/100

10%

Network Requests Diagram

cervantesvirtual.com

470 ms

fancybox.css

119 ms

cervantesvirtual_inicio.css

354 ms

cookiecuttr.css

325 ms

jquery-3.6.0.min.js

451 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 81% of them (38 requests) were addressed to the original Cervantesvirtual.com, 4% (2 requests) were made to Connect.facebook.net and 4% (2 requests) were made to Img.youtube.com. The less responsive or slowest element that took the longest time to load (964 ms) belongs to the original domain Cervantesvirtual.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 102.6 kB (6%)

Content Size

1.8 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cervantesvirtual.com main page is 1.8 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. 55% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 39.5 kB

  • Original 51.3 kB
  • After minification 44.7 kB
  • After compression 11.9 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 6.7 kB, which is 13% 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 39.5 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 62.1 kB

  • Original 1.5 MB
  • After minification 1.5 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. Cervantes Virtual images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 613 B

  • Original 118.0 kB
  • After minification 118.0 kB
  • After compression 117.4 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 382 B

  • Original 52.9 kB
  • After minification 52.9 kB
  • After compression 52.5 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. Cervantesvirtual.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (23%)

Requests Now

43

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cervantes Virtual. 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 as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cervantesvirtual.com accessibility score

98

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.

Best Practices

cervantesvirtual.com 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

High

Page has valid source maps

SEO Factors

cervantesvirtual.com SEO score

98

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 Cervantesvirtual.com 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 Cervantesvirtual.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 data is detected on the main page of Cervantes Virtual. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: