Tools & Wizards About Us
english.javiersierra.com screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 46

    SEO

    Google-friendlier than
    18% of websites

english.javiersierra.com

Javier Sierra - Official Site

Page Load Speed

7.7 sec in total

First Response

754 ms

Resources Loaded

6.7 sec

Page Rendered

252 ms

english.javiersierra.com screenshot

About Website

Visit english.javiersierra.com now to see the best up-to-date English Javier Sierra content for Spain and also check out these interesting facts you probably never knew about english.javiersierra.com

The Official Website of Javier Sierra

Visit english.javiersierra.com

Key Findings

We analyzed English.javiersierra.com page load time and found that the first response time was 754 ms and then it took 7 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

english.javiersierra.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

85/100

25%

SI (Speed Index)

Value4.5 s

71/100

10%

TBT (Total Blocking Time)

Value1,190 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.017

100/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

english.javiersierra.com

754 ms

style.css

292 ms

menu.js

554 ms

urchin.js

7 ms

esquina.js

702 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 93% of them (92 requests) were addressed to the original English.javiersierra.com, 5% (5 requests) were made to Javiersierra.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain English.javiersierra.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 82.6 kB (22%)

Content Size

370.4 kB

After Optimization

287.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of English.javiersierra.com main page is 370.4 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. 25% of websites need less resources to load. Images take 264.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 44.7 kB

  • Original 55.9 kB
  • After minification 53.6 kB
  • After compression 11.2 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 44.7 kB or 80% of the original size.

Image Optimization

-2%

Potential reduce by 4.3 kB

  • Original 264.4 kB
  • After minification 260.1 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. English Javier Sierra images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 28.2 kB

  • Original 43.8 kB
  • After minification 37.3 kB
  • After compression 15.6 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 28.2 kB or 64% of the original size.

CSS Optimization

-85%

Potential reduce by 5.3 kB

  • Original 6.2 kB
  • After minification 5.5 kB
  • After compression 908 B

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. English.javiersierra.com needs all CSS files to be minified and compressed as it can save up to 5.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 50 (53%)

Requests Now

94

After Optimization

44

  • Images
  • JavaScript
  • CSS

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of English Javier Sierra. 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.

Network Requests Diagram

english.javiersierra.com

english.javiersierra.com

754 ms

style.css

style.css

292 ms

menu.js

menu.js

554 ms

urchin.js

urchin.js

7 ms

esquina.js

esquina.js

702 ms

Idiomas_es.gif

Idiomas_es.gif

592 ms

Idiomas_us.gif

Idiomas_us.gif

736 ms

Idiomas_es2.gif

Idiomas_es2.gif

779 ms

Mapa_paises_numero_peque.gif

Mapa_paises_numero_peque.gif

790 ms

R1C1.GIF

R1C1.GIF

344 ms

R1C2.GIF

R1C2.GIF

673 ms

mas.gif

mas.gif

711 ms

R2C3.GIF

R2C3.GIF

855 ms

Friday.jpg

Friday.jpg

995 ms

R5C1.GIF

R5C1.GIF

864 ms

Information.gif

Information.gif

1003 ms

bannerTLIB.jpg

bannerTLIB.jpg

1526 ms

Audio_TSSUSA.jpg

Audio_TSSUSA.jpg

1541 ms

wmv.gif

wmv.gif

1566 ms

Sites.gif

Sites.gif

1559 ms

Covers.gif

Covers.gif

1616 ms

cenasecreta19.jpg

cenasecreta19.jpg

1636 ms

International.gif

International.gif

2181 ms

Email.gif

Email.gif

2204 ms

correo02.gif

correo02.gif

2291 ms

Statistics.gif

Statistics.gif

2313 ms

boton_favoritos_uk.gif

boton_favoritos_uk.gif

2378 ms

boton_inicio_uk.gif

boton_inicio_uk.gif

2325 ms

boton_rss_uk.gif

boton_rss_uk.gif

2560 ms

Boton_alexa_uk.gif

Boton_alexa_uk.gif

2557 ms

Boton_pagerank.gif

Boton_pagerank.gif

2612 ms

2.gif

2.gif

2665 ms

0.gif

0.gif

2678 ms

4.gif

4.gif

2674 ms

5.gif

5.gif

2818 ms

3.gif

3.gif

2818 ms

6.gif

6.gif

2870 ms

0.gif

0.gif

2896 ms

pixel.gif

pixel.gif

2912 ms

Bienvenida_UK-2R1C1-1.jpg

Bienvenida_UK-2R1C1-1.jpg

2928 ms

M.gif

M.gif

3066 ms

js_agreda.jpg

js_agreda.jpg

3246 ms

Bienvenida_UK-2R3C1.jpg

Bienvenida_UK-2R3C1.jpg

3125 ms

b_firma.gif

b_firma.gif

3123 ms

Bienvenida_UK-2R3C3-1.jpg

Bienvenida_UK-2R3C3-1.jpg

3286 ms

__utm.gif

__utm.gif

3 ms

Bienvenida_UK-2R4C1.jpg

Bienvenida_UK-2R4C1.jpg

2839 ms

TheSecretSupper.jpg

TheSecretSupper.jpg

2793 ms

News_UkR1C1.jpg

News_UkR1C1.jpg

2665 ms

cuadrado.gif

cuadrado.gif

2535 ms

News_UkR3C1.jpg

News_UkR3C1.jpg

2570 ms

News_UkR3C3.jpg

News_UkR3C3.jpg

2495 ms

News_UkR3C4.jpg

News_UkR3C4.jpg

2552 ms

News_UkR4C1.jpg

News_UkR4C1.jpg

2119 ms

News_UkR4C2.jpg

News_UkR4C2.jpg

2093 ms

News_UkR4C4.jpg

News_UkR4C4.jpg

2121 ms

aleman_tss.jpg

aleman_tss.jpg

2234 ms

pieR1C1.JPG

pieR1C1.JPG

2130 ms

pieR1C2.JPG

pieR1C2.JPG

2180 ms

pieR1C3.JPG

pieR1C3.JPG

1695 ms

pieR3C2.JPG

pieR3C2.JPG

1698 ms

R2C2.GIF

R2C2.GIF

1647 ms

R4C1.GIF

R4C1.GIF

1665 ms

blank.gif

blank.gif

1714 ms

home_a.gif

home_a.gif

1677 ms

home_b.gif

home_b.gif

1543 ms

biography_a.gif

biography_a.gif

1580 ms

biography_b.gif

biography_b.gif

1586 ms

books_a.gif

books_a.gif

1573 ms

books_b.gif

books_b.gif

1612 ms

b-rew.gif

b-rew.gif

1609 ms

b-rew2.gif

b-rew2.gif

1511 ms

arrow_r.gif

arrow_r.gif

1565 ms

faqs_a.gif

faqs_a.gif

1581 ms

faqs_b.gif

faqs_b.gif

1571 ms

worldwide_a.gif

worldwide_a.gif

1626 ms

worldwide_b.gif

worldwide_b.gif

1617 ms

presskit_a.gif

presskit_a.gif

1511 ms

presskit_b.gif

presskit_b.gif

1495 ms

buy_a.gif

buy_a.gif

1572 ms

buy_b.gif

buy_b.gif

1560 ms

secretsupper2_a.gif

secretsupper2_a.gif

1531 ms

secretsupper2_b.gif

secretsupper2_b.gif

1493 ms

top_es_a.gif

top_es_a.gif

1453 ms

top_es_b.gif

top_es_b.gif

1496 ms

fondolateral3.gif

fondolateral3.gif

1502 ms

blockR1C1.GIF

blockR1C1.GIF

1533 ms

blockR1C4.GIF

blockR1C4.GIF

1555 ms

blockR3C2.JPG

blockR3C2.JPG

1496 ms

blockR4C2.JPG

blockR4C2.JPG

1452 ms

Bienvenida_UK-2R2C1.jpg

Bienvenida_UK-2R2C1.jpg

1492 ms

Bienvenida_UK-2R2C2.jpg

Bienvenida_UK-2R2C2.jpg

1484 ms

Bienvenida_UK-2R2C4.jpg

Bienvenida_UK-2R2C4.jpg

1503 ms

Bienvenida_UK-2R3C2.jpg

Bienvenida_UK-2R3C2.jpg

1488 ms

News_UkR2C1.jpg

News_UkR2C1.jpg

1480 ms

News_UkR2C2.jpg

News_UkR2C2.jpg

1444 ms

News_UkR2C4.jpg

News_UkR2C4.jpg

1496 ms

News_UkR3C2.jpg

News_UkR3C2.jpg

1476 ms

pieR2C2.JPG

pieR2C2.JPG

1532 ms

Accessibility Review

english.javiersierra.com accessibility score

57

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

english.javiersierra.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

english.javiersierra.com SEO score

46

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

High

Image elements do not have [alt] attributes

High

Document uses plugins

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise English.javiersierra.com 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) and no language is claimed in <html> or <meta> tags either. Our system also found out that English.javiersierra.com 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

english.javiersierra.com

Open Graph description is not detected on the main page of English Javier Sierra. 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: