Report Summary

  • 25

    Performance

    Renders faster than
    45% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

webcalc.com.br

WebCalc

Page Load Speed

3.5 sec in total

First Response

824 ms

Resources Loaded

2.4 sec

Page Rendered

299 ms

webcalc.com.br screenshot

About Website

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

Webcalc provides useful online applications in various areas of knowledge, such as Mathematics, Engineering, Physics, Finance. O Webcalc disponibiliza Aplicativos online úteis em várias áreas de conhe...

Visit webcalc.com.br

Key Findings

We analyzed Webcalc.com.br page load time and found that the first response time was 824 ms and then it took 2.7 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

webcalc.com.br performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

15/100

25%

SI (Speed Index)

Value8.1 s

22/100

10%

TBT (Total Blocking Time)

Value2,690 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

Network Requests Diagram

webcalc.com.br

824 ms

detecta_naveg.js

213 ms

urchin.js

26 ms

menu.html

164 ms

inicial.html

287 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 52% of them (24 requests) were addressed to the original Webcalc.com.br, 13% (6 requests) were made to Img.afiliados.com.br and 11% (5 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (887 ms) belongs to the original domain Webcalc.com.br.

Page Optimization Overview & Recommendations

Page size can be reduced by 49.4 kB (22%)

Content Size

225.7 kB

After Optimization

176.3 kB

In fact, the total size of Webcalc.com.br main page is 225.7 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. 30% of websites need less resources to load. Images take 151.8 kB which makes up the majority of the site volume.

HTML Optimization

-54%

Potential reduce by 2.3 kB

  • Original 4.2 kB
  • After minification 4.1 kB
  • After compression 1.9 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 2.3 kB or 54% of the original size.

Image Optimization

-6%

Potential reduce by 8.6 kB

  • Original 151.8 kB
  • After minification 143.2 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. Web Calc images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 36.7 kB

  • Original 67.5 kB
  • After minification 59.1 kB
  • After compression 30.8 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 36.7 kB or 54% of the original size.

CSS Optimization

-81%

Potential reduce by 1.8 kB

  • Original 2.3 kB
  • After minification 1.8 kB
  • After compression 430 B

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. Webcalc.com.br needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (58%)

Requests Now

45

After Optimization

19

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Web Calc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

webcalc.com.br accessibility score

70

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

[aria-*] attributes do not match their roles

High

ARIA IDs are not unique

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

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible 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.

Best Practices

webcalc.com.br best practices score

69

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

Uses deprecated APIs

SEO Factors

webcalc.com.br SEO score

92

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

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

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Webcalc.com.br can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Webcalc.com.br main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Web Calc. 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: