1.6 sec in total
111 ms
1.3 sec
202 ms
Click here to check amazing Mozilla Firefox content. Otherwise, check out these important facts you probably never knew about mozillafirefox.us
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Visit mozillafirefox.usWe analyzed Mozillafirefox.us page load time and found that the first response time was 111 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
mozillafirefox.us performance score
name
value
score
weighting
Value1.9 s
86/100
10%
Value2.1 s
96/100
25%
Value2.0 s
99/100
10%
Value70 ms
99/100
30%
Value0
100/100
15%
Value5.2 s
75/100
10%
111 ms
430 ms
7 ms
11 ms
14 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Mozillafirefox.us, 88% (23 requests) were made to Mozilla.org and 4% (1 request) were made to Cdn.optimizely.com. The less responsive or slowest element that took the longest time to load (430 ms) relates to the external source Mozilla.org.
Page size can be reduced by 62.5 kB (69%)
90.0 kB
27.5 kB
In fact, the total size of Mozillafirefox.us main page is 90.0 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. 35% of websites need less resources to load. HTML takes 72.6 kB which makes up the majority of the site volume.
Potential reduce by 61.6 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 9.4 kB, which is 13% 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 61.6 kB or 85% of the original size.
Potential reduce by 845 B
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 Firefox images are well optimized though.
Number of requests can be reduced by 7 (35%)
20
13
The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mozilla Firefox. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.
mozillafirefox.us
111 ms
430 ms
site-bundle.5f2462a3ca26.js
7 ms
firefox_new_onboarding_common-bundle.136a56bfe2b9.css
11 ms
firefox_new_onboarding_scene1-bundle.9965c4083e9a.css
14 ms
optimizely-snippet-bundle.7119ca69b1d6.js
17 ms
gtm-snippet-bundle.e956015fe7f3.js
12 ms
common-bundle.bc3cd58a7ff2.js
39 ms
stub-attribution-bundle.6f2d0cdf7104.js
11 ms
firefox_new_scene1-bundle.6d2d044c9823.js
61 ms
246059135.js
170 ms
gtm.js
107 ms
horizon-night.53e7d3475fd0.svg
61 ms
stars.8398dac91f60.svg
58 ms
tabzilla-static.953a65a1f4a4.png
72 ms
header-logo-inverse.510f97e92635.png
70 ms
icon-sprite.6e9f0f71a7fe.svg
64 ms
btn-google-play.77bdbc935c58.png
72 ms
btn-app-store.1cfd5dba4a92.svg
67 ms
moz-wordmark-light-reverse.cb1bdf6d1de6.svg
70 ms
social-icon-sprite.bf2ae0cd0f01.svg
145 ms
opensans-bold.2abfa530b0d8.woff
108 ms
opensans-regular.fe6f746bb376.woff
62 ms
icon-alert.90f18723c41a.svg
29 ms
opensans-light.c709d7bf4556.woff
70 ms
opensans-semibold.3a18a24d16cb.woff
69 ms
mozillafirefox.us accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
mozillafirefox.us best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
mozillafirefox.us 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 Mozillafirefox.us 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 Mozillafirefox.us 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.
mozillafirefox.us
Open Graph data is detected on the main page of Mozilla Firefox. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: