Access mozdev.org. Internet for people, not profit

Report Summary

About Website

Click here to check amazing Mozdev content for United States. Otherwise, check out these important facts you probably never knew about mozdev.org

Did you know? Mozilla — the maker of Firefox — fights to keep the internet a global public resource, open and accessible to all.

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name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value4.2 s

78/100

10%

TBT (Total Blocking Time)

Value2,500 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.189

65/100

15%

TTI (Time to Interactive)

Value9.7 s

28/100

10%

mozdev.org

466 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Mozdev.org and no external sources were called. The less responsive or slowest element that took the longest time to load (466 ms) belongs to the original domain Mozdev.org.

Content Size

467.8 kB

After Optimization

92.5 kB

In fact, the total size of Mozdev.org main page is 467.8 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. CSS take 381.6 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 444 B

Original 560 B
After minification 162 B
After compression 116 B

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 398 B, which is 71% 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 444 B or 79% of the original size.

Image Optimization

-5%

Potential reduce by 2.0 kB

Original 38.5 kB
After minification 36.5 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. Mozdev images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 29.8 kB

Original 47.2 kB
After minification 47.0 kB
After compression 17.5 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 29.8 kB or 63% of the original size.

CSS Optimization

-90%

Potential reduce by 343.1 kB

Original 381.6 kB
After minification 250.1 kB
After compression 38.5 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. Mozdev.org needs all CSS files to be minified and compressed as it can save up to 343.1 kB or 90% of the original size.

Requests Now

After Optimization

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Mozdev.org 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 Mozdev.org 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

mozdev.org

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