Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

claro.com.co

¡Descubre por qué con Claro lo puedes todo! | Claro Colombia

Page Load Speed

3.7 sec in total

First Response

238 ms

Resources Loaded

2.9 sec

Page Rendered

488 ms

claro.com.co screenshot

About Website

Welcome to claro.com.co homepage info - get ready to check Claro best content for Colombia right away, or after learning these important things about claro.com.co

Gestiona todos tus servicios, adquiere equipos y tecnología o paga tu factura Claro y disfruta la red #1 en Cobertura 4G.

Visit claro.com.co

Key Findings

We analyzed Claro.com.co page load time and found that the first response time was 238 ms and then it took 3.4 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

claro.com.co performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value24.5 s

0/100

25%

SI (Speed Index)

Value24.1 s

0/100

10%

TBT (Total Blocking Time)

Value5,370 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.269

45/100

15%

TTI (Time to Interactive)

Value22.0 s

1/100

10%

Network Requests Diagram

claro.com.co

238 ms

209 ms

gtm.js

96 ms

gtm.js

204 ms

bk-coretag.js

140 ms

Our browser made a total of 107 requests to load all elements on the main page. We found that 74% of them (79 requests) were addressed to the original Claro.com.co, 7% (7 requests) were made to Fonts.gstatic.com and 5% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (579 ms) relates to the external source Wsa1.byside.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 655.8 kB (26%)

Content Size

2.5 MB

After Optimization

1.8 MB

In fact, the total size of Claro.com.co main page is 2.5 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 558.6 kB

  • Original 672.2 kB
  • After minification 672.2 kB
  • After compression 113.6 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 558.6 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 10.4 kB

  • Original 1.4 MB
  • After minification 1.4 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. Claro images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 13.6 kB

  • Original 343.6 kB
  • After minification 343.6 kB
  • After compression 330.0 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

-68%

Potential reduce by 73.1 kB

  • Original 107.9 kB
  • After minification 107.4 kB
  • After compression 34.8 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. Claro.com.co needs all CSS files to be minified and compressed as it can save up to 73.1 kB or 68% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (35%)

Requests Now

95

After Optimization

62

The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Claro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

claro.com.co accessibility score

73

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

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>).

Best Practices

claro.com.co best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

claro.com.co SEO score

76

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Claro.com.co can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Claro.com.co 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 Claro. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: