Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

zzona.com

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Page Load Speed

3.5 sec in total

First Response

274 ms

Resources Loaded

2.8 sec

Page Rendered

403 ms

zzona.com screenshot

About Website

Visit zzona.com now to see the best up-to-date Zzona content and also check out these interesting facts you probably never knew about zzona.com

El blog dedicado a los libros, principalmente novela histórica relacionada con la historia, reseñas, entrevistas a autores, novedades editoriales...

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Key Findings

We analyzed Zzona.com page load time and found that the first response time was 274 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

zzona.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value24.3 s

0/100

25%

SI (Speed Index)

Value9.7 s

10/100

10%

TBT (Total Blocking Time)

Value1,330 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value25.8 s

0/100

10%

Network Requests Diagram

zzona.com

274 ms

enmislibros.com

969 ms

css

38 ms

style.min.css

165 ms

style-wpzoom-social-icons.css

228 ms

Our browser made a total of 98 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Zzona.com, 86% (84 requests) were made to Enmislibros.com and 3% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (969 ms) relates to the external source Enmislibros.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 286.3 kB (11%)

Content Size

2.6 MB

After Optimization

2.3 MB

In fact, the total size of Zzona.com main page is 2.6 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. 60% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 282.9 kB

  • Original 333.1 kB
  • After minification 327.1 kB
  • After compression 50.2 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 282.9 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 444 B

  • Original 1.9 MB
  • After minification 1.9 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. Zzona images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 755 B

  • Original 173.7 kB
  • After minification 173.7 kB
  • After compression 173.0 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 2.2 kB

  • Original 174.4 kB
  • After minification 174.4 kB
  • After compression 172.1 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. Zzona.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 37 (40%)

Requests Now

92

After Optimization

55

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zzona. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zzona.com accessibility score

97

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

zzona.com best practices score

92

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

Page has valid source maps

SEO Factors

zzona.com SEO score

90

Search Engine Optimization Advices

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 Zzona.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 Zzona.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 Zzona. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: