Access libros.csic.es. Libros CSIC: libros electrónicos del Consejo Superior de Investigaciones Científicas (CSIC)

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About Website

Click here to check amazing Libros CSIC content for Spain. Otherwise, check out these important facts you probably never knew about libros.csic.es

Spanish National Research Council (CSIC) website digital eBooks on: Art, Archaeology, Philosophy, History, Language and Literature, Classical Greek and Latin, Social Sciences, Science and Technology, ...

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name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value5.2 s

61/100

10%

TBT (Total Blocking Time)

Value3,280 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

libros.csic.es

733 ms

libros.css

493 ms

banner.gif

513 ms

button_search.gif

394 ms

icon.gif

198 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 95% of them (35 requests) were addressed to the original Libros.csic.es, 3% (1 request) were made to Statcounter.com and 3% (1 request) were made to C.statcounter.com. The less responsive or slowest element that took the longest time to load (733 ms) belongs to the original domain Libros.csic.es.

Content Size

311.7 kB

After Optimization

149.7 kB

In fact, the total size of Libros.csic.es main page is 311.7 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. 15% of websites need less resources to load. Images take 225.8 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 17.0 kB

Original 22.0 kB
After minification 20.6 kB
After compression 5.0 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 17.0 kB or 77% of the original size.

Image Optimization

-44%

Potential reduce by 100.4 kB

Original 225.8 kB
After minification 125.5 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. Obviously, Libros CSIC needs image optimization as it can save up to 100.4 kB or 44% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-63%

Potential reduce by 27.7 kB

Original 44.0 kB
After minification 44.0 kB
After compression 16.3 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 27.7 kB or 63% of the original size.

CSS Optimization

-85%

Potential reduce by 17.0 kB

Original 19.9 kB
After minification 14.1 kB
After compression 2.9 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. Libros.csic.es needs all CSS files to be minified and compressed as it can save up to 17.0 kB or 85% of the original size.

Requests Now

After Optimization

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Libros CSIC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Search Engine Optimization Advices

Language and Encoding

Language Detected

N/A
Language Claimed

EN
Encoding

ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Libros.csic.es can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Libros.csic.es main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

libros.csic.es

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Libros CSIC: libros electrónicos del Consejo Superior de Investigaciones Científicas (CSIC)

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)