Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

nubank.com.br

Nubank - Finalmente você no controle do seu dinheiro

Page Load Speed

2.2 sec in total

First Response

12 ms

Resources Loaded

1.2 sec

Page Rendered

938 ms

nubank.com.br screenshot

About Website

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

Você finalmente no controle do seu dinheiro. Controle total do cartão de crédito e da conta 100% digital

Visit nubank.com.br

Key Findings

We analyzed Nubank.com.br page load time and found that the first response time was 12 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

nubank.com.br performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

8/100

25%

SI (Speed Index)

Value5.4 s

57/100

10%

TBT (Total Blocking Time)

Value5,600 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value22.0 s

1/100

10%

Network Requests Diagram

nubank.com.br

12 ms

nubank.com.br

47 ms

gtm.js

159 ms

38739501377e81c62a010d8bbbc58432.js

47 ms

optimize.js

158 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 46% of them (43 requests) were addressed to the original Nubank.com.br, 6% (6 requests) were made to Google.com and 6% (6 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (363 ms) relates to the external source Stats.g.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 876.4 kB (34%)

Content Size

2.6 MB

After Optimization

1.7 MB

In fact, the total size of Nubank.com.br main page is 2.6 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. Only a small number of websites need less resources to load. HTML takes 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 860.9 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 364.5 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 860.9 kB or 70% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 551.8 kB
  • After minification 551.8 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. Nubank images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 15.5 kB

  • Original 780.1 kB
  • After minification 780.1 kB
  • After compression 764.5 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

-0%

Potential reduce by 0 B

  • Original 24.6 kB
  • After minification 24.6 kB
  • After compression 24.6 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. Nubank.com.br has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 60 (70%)

Requests Now

86

After Optimization

26

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nubank. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 56 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

nubank.com.br accessibility score

90

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

nubank.com.br best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nubank.com.br SEO score

100

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

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 Nubank.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 Nubank.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 Nubank. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: