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Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

vi.mozdev.org

Internet for people, not profit — Mozilla

Page Load Speed

3 sec in total

First Response

739 ms

Resources Loaded

2.2 sec

Page Rendered

119 ms

vi.mozdev.org screenshot

About Website

Visit vi.mozdev.org now to see the best up-to-date Vi Mozdev content for United States and also check out these interesting facts you probably never knew about vi.mozdev.org

Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.

Visit vi.mozdev.org

Key Findings

We analyzed Vi.mozdev.org page load time and found that the first response time was 739 ms and then it took 2.3 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

vi.mozdev.org performance score

0

Network Requests Diagram

vi.mozdev.org

739 ms

default.css

200 ms

jquery.min.js

353 ms

edit-in-place-login.js

168 ms

project.css

168 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original Vi.mozdev.org, 56% (18 requests) were made to Mozdev.org and 25% (8 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (739 ms) belongs to the original domain Vi.mozdev.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 70.8 kB (68%)

Content Size

104.4 kB

After Optimization

33.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vi.mozdev.org main page is 104.4 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. 25% of websites need less resources to load. Javascripts take 57.5 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 14.4 kB

  • Original 19.9 kB
  • After minification 17.7 kB
  • After compression 5.5 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. This page needs HTML code to be minified as it can gain 2.2 kB, which is 11% 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 14.4 kB or 72% of the original size.

Image Optimization

-17%

Potential reduce by 572 B

  • Original 3.4 kB
  • After minification 2.8 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, Vi Mozdev needs image optimization as it can save up to 572 B or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-66%

Potential reduce by 37.7 kB

  • Original 57.5 kB
  • After minification 57.5 kB
  • After compression 19.7 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 37.7 kB or 66% of the original size.

CSS Optimization

-77%

Potential reduce by 18.1 kB

  • Original 23.7 kB
  • After minification 17.3 kB
  • After compression 5.6 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. Vi.mozdev.org needs all CSS files to be minified and compressed as it can save up to 18.1 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (79%)

Requests Now

28

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vi Mozdev. 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 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vi.mozdev.org

vi.mozdev.org

739 ms

default.css

default.css

200 ms

jquery.min.js

jquery.min.js

353 ms

edit-in-place-login.js

edit-in-place-login.js

168 ms

project.css

project.css

168 ms

jsapi

jsapi

17 ms

default.css

default.css

31 ms

default.css

default.css

62 ms

b-i-f.css

b-i-f.css

84 ms

position.css

position.css

85 ms

notes.css

notes.css

166 ms

contact_top50.css

contact_top50.css

167 ms

mozdev2k.css

mozdev2k.css

168 ms

notes2-layout.css

notes2-layout.css

84 ms

project.css

project.css

84 ms

header.gif

header.gif

133 ms

mozdev.png

mozdev.png

133 ms

nav_arrow.gif

nav_arrow.gif

133 ms

25 ms

default+en.css

default+en.css

4 ms

default+en.I.js

default+en.I.js

19 ms

async-ads.js

async-ads.js

84 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

15 ms

small-logo.png

small-logo.png

15 ms

clear.gif

clear.gif

15 ms

boxes.gif

boxes.gif

84 ms

nav-icon.png

nav-icon.png

84 ms

infotab_top.png

infotab_top.png

85 ms

bullet.gif

bullet.gif

85 ms

print.css

print.css

88 ms

feature-logos1.png

feature-logos1.png

365 ms

feature-logos2.png

feature-logos2.png

102 ms

SEO Factors

vi.mozdev.org SEO score

0

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vi.mozdev.org 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 Vi.mozdev.org 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

vi.mozdev.org

Open Graph description is not detected on the main page of Vi Mozdev. 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: