Analyze Hemeroteca Digital. Biblioteca Nacional de España

La Hemeroteca Digital forma parte del proyecto Biblioteca Digital Hispánica, que tiene como objetivo la consulta y difusión pública a través de Internet del Patrimonio Bibliográfico Español conservado...

Page load speed analysis

  • 66/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    772 ms

  • Resources loaded

    2.6 sec

  • Page rendered

    119 ms

  • Total page load time

    3.5 sec

Click here to check amazing Hemeroteca Digital Bne content for Peru. Otherwise, check out these important facts you probably never knew about

We analyzed page load time and found that the first response time was 772 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Page optimization

  • HTML 27.9 kB
    Images 51.7 kB
    Javascripts 360.8 kB
    CSS 21.4 kB

    In fact, the total size of main page is 461.9 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. 35% of websites need less resources to load. Javascripts take 360.8 kB which makes up the majority of the site volume.

    • Original 27.9 kB
    • After minification 20.1 kB
    • After compression 5.3 kB

    HTML optimization

    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 7.8 kB, which is 28% 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 22.5 kB or 81% of the original size.

    • Original 51.7 kB
    • After optimization 47.5 kB

    Image optimization

    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. Hemeroteca Digital Bne images are well optimized though.

    • Original 360.8 kB
    • After minification 360.6 kB
    • After compression 111.7 kB

    JavaScript optimization

    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 249.2 kB or 69% of the original size.

    • Original 21.4 kB
    • After minification 21.2 kB
    • After compression 4.1 kB

    CSS optimization

    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. needs all CSS files to be minified and compressed as it can save up to 17.3 kB or 81% of the original size.

Network requests diagram

  • styles.css
  • jquery17.js
  • ReadSpeakerColorSkin.css
  • ReadSpeakerColorSkin.js
  • ReadSpeaker.js
  • funcionesAuxiliares.js
  • logoBNE.jpg
  • biblioteca-nacional-espana.gif
  • iconos_home.png
  • pixel.gif
  • PortadaCorreo.gif
  • hd_btn.jpg
  • flecha.png
  • logoMECDgris.png
  • logoEECgris.png
  • logoBDPIgris.png
  • logoTrasparenciagrises.png
  • ReadSpeaker.Styles.css
  • ReadSpeaker.Core.js
  • icon_16px_grey.gif
  • ReadSpeakerColorSkin.png
  • degradado_horz.png
  • degradado_pie_horz.png
  • ga.js
  • ReadSpeaker.lib.Facade.adapter.jquery.js
  • __utm.gif
  • ReadSpeaker.Common.Settings.js
  • ReadSpeaker.PlayerAPI.js
  • ReadSpeaker.HL.js
  • ReadSpeaker.ui.js
  • ReadSpeaker.enlargeHL.js
  • ReadSpeaker.enlargeHL.css
  • print.css

Our browser made a total of 35 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original, 34% (12 requests) were made to and 6% (2 requests) were made to The less responsive or slowest element that took the longest time to load (772 ms) relates to the external source

Additional info on


The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hemeroteca Digital Bne. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.









Possible request optimization











Normal result

IP address

This IP address is dedicated to This is the best domain hosting practice .

Normal result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 59

Language and encoding

Normal result


ES es language flag


ES es language flag





Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 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 main page’s claimed encoding is iso639-1. 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.

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

Country of origin for 18.9% of all visits is Peru. It lies approximately 5760 miles away from the server location (Spain) and such a long distance can negatively affect website speed, as it takes some time for data to travel back and forth between those places. That’s why one of the best ways to speed up page load time for the majority of users is moving the server to Peru or just closer to the user base.

Poor result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Hemeroteca Digital Bne. 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:

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