java.com java.com: Java + You

Mobile Usability

63/100

Bad

Mobile Speed

65/100

Medium

Last tested: 2017-08-27

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java.com Mobile Usability: 63/100
java.com Mobile Usability Test Quick Overview

Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
IMPORTANT INFO…ITY OF JAVA SE renders only 7 pixels tall (18 CSS pixels).
Download and 1 others render only 5 pixels tall (13 CSS pixels).
Free Java Download renders only 5 pixels tall (14 CSS pixels).
» and 3 others render only 5 pixels tall (12 CSS pixels).
Do I have Java? and 3 others render only 5 pixels tall (12 CSS pixels).
About Java renders only 5 pixels tall (12 CSS pixels).
Select Language and 8 others render only 4 pixels tall (11 CSS pixels).
| and 7 others render only 4 pixels tall (11 CSS pixels).
Cookie Preferences renders only 4 pixels tall (11 CSS pixels).
Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target <a href="/en/download/help/">Help</a> is close to 1 other tap targets.
The tap target <input type="text" name="Ntt" class="bodytext"> is close to 1 other tap targets.
The tap target <input id="searchbtn" type="image" name="submit"> is close to 1 other tap targets.
The tap target <a href="https://go.jav…anner-java-com">What is Java?</a> and 1 others are close to other tap targets.
The tap target <a href="/en/selectlanguage.jsp">Select Language</a> and 8 others are close to other tap targets.
The tap target <a id="icon-id09500259624328464">Cookie Preferences</a> is close to 3 other tap targets.
The tap target <a href="https://www.oracle.com/" class="jvsun0">Oracle</a> is close to 1 other tap targets.
java.com Mobile Speed: 65/100
java.com Mobile Speed Test Quick Overview

Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://java.com/
http://java.com/en/
https://java.com/en/
Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://java.com/ga/css/print.css (expiration not specified)
https://java.com/ga/css/screen.css (expiration not specified)
https://java.com/ga/im/a.gif (expiration not specified)
https://java.com/ga/images/jv0_oracle.gif (expiration not specified)
https://java.com/ga/images/jv0_search_btn.gif (expiration not specified)
https://java.com/ga/images/jv0dl_a.png (expiration not specified)
https://java.com/ga/images/jv0h.jpg (expiration not specified)
https://java.com/ga/images/jv0h_academy.jpg (expiration not specified)
https://java.com/ga/images/jv0h_alice.jpg (expiration not specified)
https://java.com/ga/images/jv0h_gojava.jpg (expiration not specified)
https://java.com/ga/images/jv0h_greenfoot.jpg (expiration not specified)
https://java.com/ga/images/jv0h_java.jpg (expiration not specified)
https://java.com/ga/images/jv0h_javamag.jpg (expiration not specified)
https://java.com/ga/images/jv0ht.gif (expiration not specified)
https://java.com/ga/images/photos/java_home_photo1.jpg (expiration not specified)
https://java.com/ga/images/photos/java_home_photo2.jpg (expiration not specified)
https://java.com/ga/js/footer.min.js (expiration not specified)
https://java.com/ga/js/global.js (expiration not specified)
https://java.com/ga/js/metrics_group1.js (expiration not specified)
https://java.com/ga/js/s_code_remote.js (expiration not specified)
https://java.com/ga/js/subtlePager.js (expiration not specified)
Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://java.com/ga/css/screen.css
Optimize images

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 57.4KiB (51% reduction).
Compressing https://java.com/ga/images/jv0h.jpg could save 27.3KiB (83% reduction).
Compressing https://java.com/ga/images/photos/java_home_photo2.jpg could save 6.3KiB (35% reduction).
Compressing https://java.com/ga/images/photos/java_home_photo1.jpg could save 6.1KiB (36% reduction).
Compressing https://java.com/ga/images/jv0h_java.jpg could save 4.1KiB (48% reduction).
Compressing https://java.com/ga/images/jv0h_javamag.jpg could save 3.5KiB (48% reduction).
Compressing https://java.com/ga/images/jv0h_academy.jpg could save 3.3KiB (42% reduction).
Compressing https://java.com/ga/images/jv0h_gojava.jpg could save 3.1KiB (41% reduction).
Compressing https://java.com/ga/images/jv0dl_a.png could save 2.4KiB (51% reduction).
Compressing https://java.com/ga/images/jv0h_alice.jpg could save 819B (19% reduction).
Compressing https://java.com/ga/images/jv0h_greenfoot.jpg could save 570B (15% reduction).
Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 2.5KiB (14% reduction).
Minifying https://java.com/ga/js/metrics_group1.js could save 2.5KiB (14% reduction) after compression.
Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 1.6KiB (28% reduction).
Minifying https://java.com/ga/css/screen.css could save 1.6KiB (28% reduction) after compression.

java.com Mobile Resources


Total Resources28
Number of Hosts3
Static Resources22
JavaScript Resources7
CSS Resources2

java.com Mobile Resource Breakdown