Report Summary

  • 87

    Performance

    Renders faster than
    90% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

stoa.usp.br

Stoa: Página Principal

Page Load Speed

5.5 sec in total

First Response

668 ms

Resources Loaded

4.4 sec

Page Rendered

390 ms

stoa.usp.br screenshot

About Website

Click here to check amazing Stoa Usp content for Brazil. Otherwise, check out these important facts you probably never knew about stoa.usp.br

Visit stoa.usp.br

Key Findings

We analyzed Stoa.usp.br page load time and found that the first response time was 668 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

stoa.usp.br performance score

87

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value4.7 s

68/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

Network Requests Diagram

stoa.usp.br

668 ms

index.html

192 ms

bootstrap.css

552 ms

style.css

362 ms

font-awesome.css

548 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 75% of them (33 requests) were addressed to the original Stoa.usp.br, 18% (8 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Stoa.usp.br.

Page Optimization Overview & Recommendations

Page size can be reduced by 269.7 kB (8%)

Content Size

3.5 MB

After Optimization

3.3 MB

In fact, the total size of Stoa.usp.br main page is 3.5 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. 50% of websites need less resources to load. Images take 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 12.7 kB

  • Original 15.6 kB
  • After minification 12.6 kB
  • After compression 2.8 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 3.0 kB, which is 19% 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 12.7 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 28.3 kB

  • Original 3.2 MB
  • After minification 3.2 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. Stoa Usp images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 32.3 kB

  • Original 44.0 kB
  • After minification 41.3 kB
  • After compression 11.7 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 32.3 kB or 73% of the original size.

CSS Optimization

-87%

Potential reduce by 196.4 kB

  • Original 226.0 kB
  • After minification 185.0 kB
  • After compression 29.6 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. Stoa.usp.br needs all CSS files to be minified and compressed as it can save up to 196.4 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (27%)

Requests Now

33

After Optimization

24

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stoa Usp. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

stoa.usp.br accessibility score

92

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

Links do not have a discernible name

Best Practices

stoa.usp.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

stoa.usp.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 Stoa.usp.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 Stoa.usp.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 Stoa Usp. 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: