Tools & Wizards About Us

Report Summary

  • 4

    Performance

    Renders faster than
    20% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

cers.com.br

CERS - Página Inicial

Page Load Speed

5.1 sec in total

First Response

334 ms

Resources Loaded

4.6 sec

Page Rendered

146 ms

About Website

Click here to check amazing CERS content for Brazil. Otherwise, check out these important facts you probably never knew about cers.com.br

Cursos online e presencial. Encontre a melhor preparação para a sua carreira com o CERS....

Visit cers.com.br

Key Findings

We analyzed Cers.com.br page load time and found that the first response time was 334 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

cers.com.br performance score

4

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value24.1 s

0/100

25%

SI (Speed Index)

Value15.6 s

0/100

10%

TBT (Total Blocking Time)

Value4,920 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.813

4/100

15%

TTI (Time to Interactive)

Value28.8 s

0/100

10%

Network Requests Diagram

cers.com.br

334 ms

cers.com.br

1996 ms

032c93ae9c08ebf1.css

483 ms

5e2adc918c46e2ea.css

390 ms

235cff24f44bb0f3.css

378 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 64% of them (41 requests) were addressed to the original Cers.com.br, 11% (7 requests) were made to Stc.pagseguro.uol.com.br and 6% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Cers.com.br.

Page Optimization Overview & Recommendations

Page size can be reduced by 201.9 kB (50%)

Content Size

402.9 kB

After Optimization

201.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cers.com.br main page is 402.9 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. 45% of websites need less resources to load. HTML takes 210.3 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 175.9 kB

  • Original 210.3 kB
  • After minification 210.3 kB
  • After compression 34.4 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 175.9 kB or 84% of the original size.

Image Optimization

-8%

Potential reduce by 3.4 kB

  • Original 42.1 kB
  • After minification 38.7 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. CERS images are well optimized though.

JavaScript Optimization

-16%

Potential reduce by 22.5 kB

  • Original 138.9 kB
  • After minification 131.1 kB
  • After compression 116.3 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 22.5 kB or 16% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 11.6 kB
  • After minification 11.6 kB
  • After compression 11.6 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. Cers.com.br has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 34 (61%)

Requests Now

56

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CERS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cers.com.br accessibility score

87

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-hidden="true"] elements contain focusable descendents

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

Best Practices

cers.com.br best practices score

75

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

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

cers.com.br SEO score

99

Search Engine Optimization Advices

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

    PT

  • Language Claimed

    PT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cers.com.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 Cers.com.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 data is detected on the main page of CERS. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: