29.7 sec in total
385 ms
12.1 sec
17.2 sec
Click here to check amazing Mozilla content for India. Otherwise, check out these important facts you probably never knew about mozilla.org
Did you know? Mozilla — the maker of Firefox — fights to keep the internet a global public resource, open and accessible to all.
Visit mozilla.orgWe analyzed Mozilla.org page load time and found that the first response time was 385 ms and then it took 29.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.
mozilla.org performance score
name
value
score
weighting
Value2.9 s
52/100
10%
Value2.9 s
80/100
25%
Value3.1 s
93/100
10%
Value2,220 ms
6/100
30%
Value0.189
65/100
15%
Value9.2 s
32/100
10%
385 ms
543 ms
509 ms
616 ms
695 ms
Our browser made a total of 40 requests to load all elements on the main page. We found that 98% of them (39 requests) were addressed to the original Mozilla.org, 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (5 sec) belongs to the original domain Mozilla.org.
Page size can be reduced by 334.5 kB (14%)
2.3 MB
2.0 MB
In fact, the total size of Mozilla.org main page is 2.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.9 MB which makes up the majority of the site volume.
Potential reduce by 91.8 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 91.8 kB or 73% of the original size.
Potential reduce by 4.3 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. Mozilla images are well optimized though.
Potential reduce by 202.1 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 202.1 kB or 68% of the original size.
Potential reduce by 36.3 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. Mozilla.org needs all CSS files to be minified and compressed as it can save up to 36.3 kB or 84% of the original size.
Number of requests can be reduced by 6 (18%)
33
27
The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mozilla. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
385 ms
site-bundle.5f2462a3ca26.js
543 ms
pebbles-bundle.7c2533fcb8ec.css
509 ms
home-bundle.bacc9b8eac65.css
616 ms
gtm-snippet-bundle.e956015fe7f3.js
695 ms
common-bundle.bc3cd58a7ff2.js
2638 ms
stub-attribution-bundle.6f2d0cdf7104.js
360 ms
home-bundle.9bb03a5ee177.js
2497 ms
firefox-update-notification-bundle.833e19e1384b.js
2182 ms
gtm.js
4459 ms
moz-wordmark-dark-reverse.2cbc28bb9895.svg
2797 ms
down-arrow-light-sprite.3c238dd79c17.png
2658 ms
subnav-expand.023729cb5b3a.svg
2658 ms
fb-share-tips.c00975453739.png
2515 ms
safer-logins.a578d3224c76.png
2715 ms
css-grid-demo.519391163c6a.png
2714 ms
web-assembly.899f5b709746.png
2717 ms
intro-mitchell-2000.bf146ac8f856.jpg
2928 ms
intro-learning-2000.33e7203ee1b7.jpg
2929 ms
intro-advocacy-2000.87ee1882af49.jpg
2926 ms
intro-vr-2000.221706812461.jpg
2878 ms
speaker.2a1099aca683.png
2714 ms
vr.b7375fc683b0.png
2716 ms
stars.8398dac91f60.svg
2754 ms
logo-large.db198f32d472.png
2753 ms
btn-google-play.77bdbc935c58.png
4997 ms
btn-app-store.1cfd5dba4a92.svg
3078 ms
foreground.9d87fe44d0ee.png
3441 ms
icon-addons.013eb22dbe38.svg
2976 ms
icon-careers.986c678e3af5.svg
2975 ms
icon-help.6a0176e2ed1d.svg
2973 ms
mozorg-newsletter.db230ae1e11b.svg
3316 ms
moz-wordmark-light-reverse.cb1bdf6d1de6.svg
3102 ms
social-icon-sprite.bf2ae0cd0f01.svg
3298 ms
opensans-regular.fe6f746bb376.woff
389 ms
opensans-bold.2abfa530b0d8.woff
373 ms
ZillaSlab-BoldItalic.dd3d114d6c53.woff
374 ms
ZillaSlab-RegularItalic.8eb5354ed8ae.woff
354 ms
ZillaSlab-Bold.be1d6507cb98.woff
354 ms
ZillaSlab-Regular.f7120c75de27.woff
353 ms
mozilla.org accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
mozilla.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
mozilla.org SEO score
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mozilla.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 Mozilla.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.
mozilla.org
Open Graph data is detected on the main page of Mozilla. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: