Report Summary

  • 21

    Performance

    Renders faster than
    41% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    34% of websites

  • 85

    SEO

    Google-friendlier than
    62% of websites

gns3.net

GNS3 | The software that empowers network professionals

Page Load Speed

1.2 sec in total

First Response

49 ms

Resources Loaded

979 ms

Page Rendered

151 ms

gns3.net screenshot

About Website

Welcome to gns3.net homepage info - get ready to check GNS3 best content for United States right away, or after learning these important things about gns3.net

Visit gns3.net

Key Findings

We analyzed Gns3.net page load time and found that the first response time was 49 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

gns3.net performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value15.1 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value2,620 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.049

99/100

15%

TTI (Time to Interactive)

Value14.1 s

9/100

10%

Network Requests Diagram

gns3.net

49 ms

www.gns3.com

378 ms

css

83 ms

css

101 ms

css

111 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Gns3.net, 74% (53 requests) were made to Gns3.com and 6% (4 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (378 ms) relates to the external source Gns3.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.2 MB (81%)

Content Size

2.7 MB

After Optimization

511.0 kB

In fact, the total size of Gns3.net main page is 2.7 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. Javascripts take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 9.9 kB

  • Original 13.4 kB
  • After minification 12.2 kB
  • After compression 3.5 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 9.9 kB or 74% of the original size.

Image Optimization

-18%

Potential reduce by 2.6 kB

  • Original 15.0 kB
  • After minification 12.3 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. Obviously, GNS3 needs image optimization as it can save up to 2.6 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-81%

Potential reduce by 1.9 MB

  • Original 2.4 MB
  • After minification 2.2 MB
  • After compression 451.2 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 1.9 MB or 81% of the original size.

CSS Optimization

-85%

Potential reduce by 241.3 kB

  • Original 285.3 kB
  • After minification 284.4 kB
  • After compression 43.9 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. Gns3.net needs all CSS files to be minified and compressed as it can save up to 241.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 52 (84%)

Requests Now

62

After Optimization

10

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of GNS3. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 49 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

gns3.net accessibility score

82

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

button, link, and menuitem elements do not have accessible names.

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

gns3.net best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

gns3.net SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

    EN

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Gns3.net can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Gns3.net 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 GNS3. 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: