Tools & Wizards About Us
blackfriday.com.br screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% 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

  • 83

    SEO

    Google-friendlier than
    46% of websites

blackfriday.com.br

Black Friday 2024 | Ofertas até 80% Off - Site Oficial

Page Load Speed

4.4 sec in total

First Response

146 ms

Resources Loaded

3.5 sec

Page Rendered

779 ms

blackfriday.com.br screenshot

About Website

Visit blackfriday.com.br now to see the best up-to-date Black Friday content for Brazil and also check out these interesting facts you probably never knew about blackfriday.com.br

Site Oficial da Black Friday 2024 - Ofertas e Promoções Exclusivas de até 80% de Desconto na Maior Black Friday do Brasil que acontece no dia 29 de Novembro.

Visit blackfriday.com.br

Key Findings

We analyzed Blackfriday.com.br page load time and found that the first response time was 146 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

blackfriday.com.br performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value5.7 s

52/100

10%

TBT (Total Blocking Time)

Value570 ms

52/100

30%

CLS (Cumulative Layout Shift)

Value0.119

85/100

15%

TTI (Time to Interactive)

Value12.6 s

14/100

10%

Network Requests Diagram

blackfriday.com.br

146 ms

blackfriday.com.br

414 ms

bootstrap.min.css

25 ms

owl.carousel.min.css

37 ms

owl.theme.default.min.css

57 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 50% of them (32 requests) were addressed to the original Blackfriday.com.br, 34% (22 requests) were made to Cdn.blackfriday.com.br and 6% (4 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Cdn.blackfriday.com.br.

Page Optimization Overview & Recommendations

Page size can be reduced by 122.3 kB (22%)

Content Size

547.3 kB

After Optimization

425.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackfriday.com.br main page is 547.3 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. 40% of websites need less resources to load. Javascripts take 259.0 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 54.8 kB

  • Original 68.4 kB
  • After minification 57.1 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. This page needs HTML code to be minified as it can gain 11.4 kB, which is 17% 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 54.8 kB or 80% of the original size.

Image Optimization

-6%

Potential reduce by 11.7 kB

  • Original 204.8 kB
  • After minification 193.0 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. Black Friday images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 44.7 kB

  • Original 259.0 kB
  • After minification 239.8 kB
  • After compression 214.3 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 44.7 kB or 17% of the original size.

CSS Optimization

-73%

Potential reduce by 11.0 kB

  • Original 15.1 kB
  • After minification 11.5 kB
  • After compression 4.1 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. Blackfriday.com.br needs all CSS files to be minified and compressed as it can save up to 11.0 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (45%)

Requests Now

38

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Black Friday. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blackfriday.com.br

blackfriday.com.br

146 ms

blackfriday.com.br

blackfriday.com.br

414 ms

bootstrap.min.css

bootstrap.min.css

25 ms

owl.carousel.min.css

owl.carousel.min.css

37 ms

owl.theme.default.min.css

owl.theme.default.min.css

57 ms

style.css

style.css

267 ms

medias.css

medias.css

313 ms

gpt.js

gpt.js

100 ms

jquery-3.7.0.min.js

jquery-3.7.0.min.js

14 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

2 ms

owl.carousel.min.js

owl.carousel.min.js

3 ms

jquery.bxslider.css

jquery.bxslider.css

8 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

12 ms

jbvalidator.js

jbvalidator.js

377 ms

jquery.mask.js

jquery.mask.js

396 ms

form.js

form.js

338 ms

blog.js

blog.js

339 ms

scriptPosts.js

scriptPosts.js

472 ms

gtm.js

gtm.js

134 ms

beacon

beacon

72 ms

logo.webp

logo.webp

515 ms

black-friday-image-8.png

black-friday-image-8.png

332 ms

black-friday-banner-topo-2024.webp

black-friday-banner-topo-2024.webp

789 ms

arrow-red.webp

arrow-red.webp

364 ms

1320x385_CDO_whatsapp.webp

1320x385_CDO_whatsapp.webp

634 ms

black-friday-image-1-min.webp

black-friday-image-1-min.webp

812 ms

black-friday-calendario-2024.webp

black-friday-calendario-2024.webp

626 ms

accordion-arrow.webp

accordion-arrow.webp

619 ms

pubads_impl.js

pubads_impl.js

36 ms

71657117

71657117

74 ms

bg-whats.png

bg-whats.png

927 ms

footer.html

footer.html

372 ms

header.html

header.html

659 ms

whatsapp-group.html

whatsapp-group.html

622 ms

clube_top_five.html

clube_top_five.html

659 ms

clube_hot_line.html

clube_hot_line.html

666 ms

clube_destaques.html

clube_destaques.html

806 ms

clube_top_cupons_banner.html

clube_top_cupons_banner.html

813 ms

clube_top_ofertas.html

clube_top_ofertas.html

876 ms

BlackFriday.webp

BlackFriday.webp

590 ms

DiadoFreteGratis.webp

DiadoFreteGratis.webp

554 ms

CyberMonday.webp

CyberMonday.webp

558 ms

logo-get-financas.png

logo-get-financas.png

746 ms

logo-freemium.png

logo-freemium.png

706 ms

logo-protecao-dados.webp

logo-protecao-dados.webp

776 ms

1320x385_CDO_whatsapp.webp

1320x385_CDO_whatsapp.webp

798 ms

logo.webp

logo.webp

6 ms

logo.webp

logo.webp

673 ms

ultimas-unidades.png

ultimas-unidades.png

531 ms

363_51_1717417624272.jpg-xs

363_51_1717417624272.jpg-xs

704 ms

arrow-red.webp

arrow-red.webp

584 ms

363_51_1717417624128.jpg-xs

363_51_1717417624128.jpg-xs

905 ms

termina.png

termina.png

565 ms

363_51_1717417623963.jpg-xs

363_51_1717417623963.jpg-xs

909 ms

363_51_1717417624079.jpg-xs

363_51_1717417624079.jpg-xs

1176 ms

363_51_1717417623958.jpg-xs

363_51_1717417623958.jpg-xs

1317 ms

offer_39uf0uasi0e2ifas.jpg-sm

offer_39uf0uasi0e2ifas.jpg-sm

438 ms

363_51_1718058250052.jpg-sm

363_51_1718058250052.jpg-sm

984 ms

363_51_1718058249834.jpg-sm

363_51_1718058249834.jpg-sm

1077 ms

363_51_1718058249875.jpg-sm

363_51_1718058249875.jpg-sm

1260 ms

banner_banneriphonesBF.jpg-xs

banner_banneriphonesBF.jpg-xs

1379 ms

363_51_1718058249770.jpg-md

363_51_1718058249770.jpg-md

1425 ms

363_51_1718058249780.jpg-md

363_51_1718058249780.jpg-md

1456 ms

363_51_1718058249776.jpg-md

363_51_1718058249776.jpg-md

1524 ms

Accessibility Review

blackfriday.com.br accessibility score

87

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

blackfriday.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

blackfriday.com.br SEO score

83

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    PT

  • Language Claimed

    PT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blackfriday.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 Blackfriday.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

blackfriday.com.br

Open Graph description is not detected on the main page of Black Friday. 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: