Tools & Wizards About Us

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

alcer.org

Federación ALCER - Asociación para la Lucha Contra las Enfermedades Renales

Page Load Speed

11.7 sec in total

First Response

3.9 sec

Resources Loaded

7.5 sec

Page Rendered

286 ms

About Website

Welcome to alcer.org homepage info - get ready to check ALCER best content for Mexico right away, or after learning these important things about alcer.org

Trabajando para mejorar la calidad de vida de las personas con enfermedades renales y sus familiares.

Visit alcer.org

Key Findings

We analyzed Alcer.org page load time and found that the first response time was 3.9 sec and then it took 7.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

alcer.org performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value26.4 s

0/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value920 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.064

97/100

15%

TTI (Time to Interactive)

Value7.7 s

45/100

10%

Network Requests Diagram

alcer.org

3868 ms

style.css

320 ms

css

42 ms

validationEngine.jquery.css

218 ms

MapListProCore.css

325 ms

Our browser made a total of 97 requests to load all elements on the main page. We found that 85% of them (82 requests) were addressed to the original Alcer.org, 4% (4 requests) were made to Fonts.gstatic.com and 3% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Alcer.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 944.1 kB (53%)

Content Size

1.8 MB

After Optimization

822.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alcer.org main page is 1.8 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. 70% of websites need less resources to load. Images take 739.7 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 58.6 kB

  • Original 72.2 kB
  • After minification 66.5 kB
  • After compression 13.6 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 58.6 kB or 81% of the original size.

Image Optimization

-22%

Potential reduce by 160.9 kB

  • Original 739.7 kB
  • After minification 578.8 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. Obviously, ALCER needs image optimization as it can save up to 160.9 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 361.4 kB

  • Original 519.8 kB
  • After minification 462.7 kB
  • After compression 158.4 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 361.4 kB or 70% of the original size.

CSS Optimization

-84%

Potential reduce by 363.2 kB

  • Original 435.0 kB
  • After minification 406.8 kB
  • After compression 71.7 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. Alcer.org needs all CSS files to be minified and compressed as it can save up to 363.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (46%)

Requests Now

92

After Optimization

50

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ALCER. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

alcer.org accessibility score

84

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

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

alcer.org 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

alcer.org SEO score

93

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

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 Alcer.org 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 Alcer.org 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 ALCER. 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: