Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

zerocoma.com

ZeroComa: Factura Electrónica, Digitalización Certificada y mucho más.

Page Load Speed

9.8 sec in total

First Response

579 ms

Resources Loaded

9 sec

Page Rendered

168 ms

zerocoma.com screenshot

About Website

Click here to check amazing Zero Coma content for Spain. Otherwise, check out these important facts you probably never knew about zerocoma.com

ZeroComa, compañía española dedicada a la transformación digital de las empresas: Facturas Electrónicas, Notificaciones Electrónicas, Contabilización y más.

Visit zerocoma.com

Key Findings

We analyzed Zerocoma.com page load time and found that the first response time was 579 ms and then it took 9.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster. This domain responded with an error, which can significantly jeopardize Zerocoma.com rating and web reputation

Performance Metrics

zerocoma.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value19.3 s

0/100

10%

TBT (Total Blocking Time)

Value1,070 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value24.3 s

0/100

10%

Network Requests Diagram

zerocoma.com

579 ms

www.zerocoma.com

5856 ms

typography2.php

1739 ms

modal.css

337 ms

rokbox-style.css

255 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 74% of them (68 requests) were addressed to the original Zerocoma.com, 9% (8 requests) were made to Apis.google.com and 2% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (5.9 sec) belongs to the original domain Zerocoma.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 514.2 kB (52%)

Content Size

979.8 kB

After Optimization

465.6 kB

In fact, the total size of Zerocoma.com main page is 979.8 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. 60% of websites need less resources to load. Javascripts take 462.7 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 73.0 kB

  • Original 90.1 kB
  • After minification 78.6 kB
  • After compression 17.0 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. This page needs HTML code to be minified as it can gain 11.4 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 73.0 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 19.1 kB

  • Original 298.7 kB
  • After minification 279.6 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. Zero Coma images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 313.6 kB

  • Original 462.7 kB
  • After minification 444.3 kB
  • After compression 149.1 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 313.6 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 108.4 kB

  • Original 128.3 kB
  • After minification 91.1 kB
  • After compression 19.9 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. Zerocoma.com needs all CSS files to be minified and compressed as it can save up to 108.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 56 (64%)

Requests Now

88

After Optimization

32

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zero Coma. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zerocoma.com accessibility score

93

Accessibility Issues

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

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

zerocoma.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

zerocoma.com SEO score

91

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

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 Zerocoma.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 Zerocoma.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 description is not detected on the main page of Zero Coma. 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: