4.4 sec in total
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3.4 sec
774 ms
Welcome to docker.com homepage info - get ready to check Docker best content for China right away, or after learning these important things about docker.com
Docker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code.
Visit docker.comWe analyzed Docker.com page load time and found that the first response time was 197 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
docker.com performance score
name
value
score
weighting
Value3.4 s
38/100
10%
Value3.9 s
52/100
25%
Value6.7 s
36/100
10%
Value2,780 ms
3/100
30%
Value0.435
21/100
15%
Value15.8 s
6/100
10%
197 ms
37 ms
77 ms
125 ms
90 ms
Our browser made a total of 73 requests to load all elements on the main page. We found that 66% of them (48 requests) were addressed to the original Docker.com, 7% (5 requests) were made to App-sj05.marketo.com and 5% (4 requests) were made to Rtp-static.marketo.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Goto.docker.com.
Page size can be reduced by 1.5 MB (62%)
2.4 MB
932.1 kB
In fact, the total size of Docker.com main page is 2.4 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. 80% 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. Javascripts take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 41.3 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 41.3 kB or 77% of the original size.
Potential reduce by 69.3 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, Docker needs image optimization as it can save up to 69.3 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 831.8 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 831.8 kB or 67% of the original size.
Potential reduce by 575.0 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. Docker.com needs all CSS files to be minified and compressed as it can save up to 575.0 kB or 86% of the original size.
Number of requests can be reduced by 44 (62%)
71
27
The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Docker. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
www.docker.com
197 ms
jquery-ui.min.css
37 ms
jquery-ui-slider-pips.css
77 ms
bootstrap.min.css
125 ms
flexslider.css
90 ms
magnific-popup.css
121 ms
cubeportfolio.min.css
112 ms
font-awesome.min.css
116 ms
app.css
135 ms
app1.css
162 ms
animate.min.css
35 ms
modernizr.min.js
38 ms
track.js
73 ms
forms2.min.js
357 ms
vendor.js
400 ms
foundation.js
357 ms
jquery-migrate-1.2.1.min.js
249 ms
jquery-ui.min.js
355 ms
jquery-ui-slider-pips.min.js
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affix.js
351 ms
scrollspy.min.js
352 ms
jquery.flexslider.js
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jquery.magnific-popup.min.js
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jquery.matchHeight.min.js
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isotope.pkgd.min.js
355 ms
jquery.cubeportfolio.min.js
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wow.js
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jquery.smooth-scroll.min.js
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jquery.ui.touch-punch.min.js
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jquery.ba-bbq.js
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app.js
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docker.js
368 ms
2793990448.js
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pixel-config.json
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Swarmnado-357x627-15.gif
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logo.png
138 ms
hero-wave.svg
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control_panel_1.svg
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docker_diagram51.svg
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build.png
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ship.png
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run.png
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agility_0.png
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control_0.png
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portability_0.png
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open_standards_image.png
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integration_blue_icon.svg
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deployment_blue_icon.svg
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devops_blue_icon.svg
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big_data_blue_icon.svg
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infrastructure_blue_icon.svg
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footer-wave.svg
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docker-blog-24.png
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fa-reddit-alien.png
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pix.gif
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getForm
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fontawesome-webfont.woff
196 ms
gtm.js
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forms2.css
82 ms
forms2-theme-simple.css
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analytics.js
138 ms
roundtrip.js
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munchkin.js
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rtp.js
75 ms
XDFrame
316 ms
munchkin.js
4 ms
visitWebPage
410 ms
jquery.min.js
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jquery-ui-insightera-custom-1.7.css
93 ms
ga-integration-2.0.1.js
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collect
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jquery-custom-ui.min.js
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TT5ARL2XPVGU5C3UJJYC2C.js
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docker.com 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
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
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
docker.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
docker.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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 Docker.com 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 Docker.com 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.
docker.com
Open Graph description is not detected on the main page of Docker. 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: