Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 81% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    65% of websites

  • 67

    SEO

    Google-friendlier than
    35% of websites

Page Load Speed

16.1 sec in total

First Response

533 ms

Resources Loaded

15.2 sec

Page Rendered

415 ms

cst.org.br screenshot

About Website

Welcome to cst.org.br homepage info - get ready to check CST best content for Brazil right away, or after learning these important things about cst.org.br

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Key Findings

We analyzed Cst.org.br page load time and found that the first response time was 533 ms and then it took 15.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

cst.org.br performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

Network Requests Diagram

cst.org.br

533 ms

www.cst.org.br

3150 ms

tags.css

293 ms

cst.css

744 ms

fontes.css

304 ms

Our browser made a total of 153 requests to load all elements on the main page. We found that 85% of them (130 requests) were addressed to the original Cst.org.br, 5% (8 requests) were made to Apis.google.com and 3% (4 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (6.2 sec) belongs to the original domain Cst.org.br.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (50%)

Content Size

2.2 MB

After Optimization

1.1 MB

In fact, the total size of Cst.org.br main page is 2.2 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. 55% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 60.4 kB

  • Original 77.5 kB
  • After minification 65.8 kB
  • After compression 17.1 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 11.7 kB, which is 15% 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 60.4 kB or 78% of the original size.

Image Optimization

-36%

Potential reduce by 497.4 kB

  • Original 1.4 MB
  • After minification 866.2 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, CST needs image optimization as it can save up to 497.4 kB or 36% 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 488.7 kB

  • Original 698.8 kB
  • After minification 652.6 kB
  • After compression 210.1 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 488.7 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 58.8 kB

  • Original 70.5 kB
  • After minification 55.8 kB
  • After compression 11.7 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. Cst.org.br needs all CSS files to be minified and compressed as it can save up to 58.8 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 75 (50%)

Requests Now

151

After Optimization

76

The browser has sent 151 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CST. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

cst.org.br accessibility score

90

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

Best Practices

cst.org.br 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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

cst.org.br SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    PT

  • Language Claimed

    PT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cst.org.br can be misinterpreted by Google and other search engines. Our service has detected that Portuguese is used on the page, and it matches the claimed language. Our system also found out that Cst.org.br 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 CST. 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: