Report Summary

  • 39

    Performance

    Renders faster than
    59% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

nubank.com.br

Nubank - Finalmente você no controle do seu dinheiro

Page Load Speed

2.3 sec in total

First Response

50 ms

Resources Loaded

1 sec

Page Rendered

1.2 sec

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 50 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 40% of websites can load faster.

Performance Metrics

nubank.com.br performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value20,550 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value27.7 s

0/100

10%

Network Requests Diagram

nubank.com.br

50 ms

3245480201.js

204 ms

fonts.css

402 ms

normalize.css

100 ms

foundation.css

97 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 59% of them (35 requests) were addressed to the original Nubank.com.br, 19% (11 requests) were made to Cdnjs.cloudflare.com and 8% (5 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (493 ms) relates to the external source Googletagmanager.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 706.7 kB (24%)

Content Size

2.9 MB

After Optimization

2.2 MB

In fact, the total size of Nubank.com.br main page is 2.9 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. 65% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 19.2 kB

  • Original 29.3 kB
  • After minification 29.2 kB
  • After compression 10.1 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. 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 19.2 kB or 65% of the original size.

Image Optimization

-0%

Potential reduce by 4.4 kB

  • Original 1.9 MB
  • After minification 1.9 MB

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

-76%

Potential reduce by 445.6 kB

  • Original 589.2 kB
  • After minification 472.2 kB
  • After compression 143.6 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 445.6 kB or 76% of the original size.

CSS Optimization

-63%

Potential reduce by 237.6 kB

  • Original 378.8 kB
  • After minification 326.3 kB
  • After compression 141.2 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 needs all CSS files to be minified and compressed as it can save up to 237.6 kB or 63% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (45%)

Requests Now

49

After Optimization

27

The browser has sent 49 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 13 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

nubank.com.br accessibility score

89

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

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: