Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

visalens.com.br

Lentes de contato, lentes coloridas, lentes incolor, lentes tóricas, lentes de grau, lentes para astigmatismo - Visalens

Page Load Speed

7.7 sec in total

First Response

501 ms

Resources Loaded

6.6 sec

Page Rendered

544 ms

visalens.com.br screenshot

About Website

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

Especializada em lentes de contato, lentes de contato colorida, lentes de grau, lentes para astigmatismo, lentes tórica, lentes de contato incolor.

Visit visalens.com.br

Key Findings

We analyzed Visalens.com.br page load time and found that the first response time was 501 ms and then it took 7.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

visalens.com.br performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.2 s

1/100

10%

LCP (Largest Contentful Paint)

Value16.3 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.153

75/100

15%

TTI (Time to Interactive)

Value8.2 s

40/100

10%

Network Requests Diagram

visalens.com.br

501 ms

visalens.com.br

644 ms

jquery-2.1.1.min.js

632 ms

bootstrap.min.css

755 ms

bootstrap.min.js

507 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 87% of them (55 requests) were addressed to the original Visalens.com.br, 5% (3 requests) were made to Kit-free.fontawesome.com and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Visalens.com.br.

Page Optimization Overview & Recommendations

Page size can be reduced by 573.5 kB (19%)

Content Size

2.9 MB

After Optimization

2.4 MB

In fact, the total size of Visalens.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. 35% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 37.0 kB

  • Original 42.5 kB
  • After minification 35.6 kB
  • After compression 5.4 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. This page needs HTML code to be minified as it can gain 6.9 kB, which is 16% 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 37.0 kB or 87% of the original size.

Image Optimization

-4%

Potential reduce by 104.3 kB

  • Original 2.4 MB
  • After minification 2.3 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. Visalens images are well optimized though.

JavaScript Optimization

-81%

Potential reduce by 271.3 kB

  • Original 334.6 kB
  • After minification 230.8 kB
  • After compression 63.3 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 271.3 kB or 81% of the original size.

CSS Optimization

-78%

Potential reduce by 160.9 kB

  • Original 207.4 kB
  • After minification 201.3 kB
  • After compression 46.5 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. Visalens.com.br needs all CSS files to be minified and compressed as it can save up to 160.9 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (23%)

Requests Now

57

After Optimization

44

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Visalens. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

visalens.com.br accessibility score

81

Accessibility Issues

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

Buttons do not have an accessible name

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.

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 IDs are not unique

Best Practices

visalens.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

visalens.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 Visalens.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 Visalens.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 description is not detected on the main page of Visalens. 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: