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Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

visualvm.java.net

Home — Project Kenai

Page Load Speed

3.4 sec in total

First Response

215 ms

Resources Loaded

3.1 sec

Page Rendered

167 ms

visualvm.java.net screenshot

About Website

Visit visualvm.java.net now to see the best up-to-date Visualvm Java content for China and also check out these interesting facts you probably never knew about visualvm.java.net

Visit visualvm.java.net

Key Findings

We analyzed Visualvm.java.net page load time and found that the first response time was 215 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

visualvm.java.net performance score

0

Network Requests Diagram

visualvm.java.net

215 ms

base_packaged.css

356 ms

head_packaged.js

348 ms

theme.css

289 ms

visualvm.css

282 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 53% of them (17 requests) were addressed to the original Visualvm.java.net, 16% (5 requests) were made to Java.net and 13% (4 requests) were made to Community.oracle.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Community.oracle.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 170.8 kB (58%)

Content Size

296.7 kB

After Optimization

125.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Visualvm.java.net main page is 296.7 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. 25% of websites need less resources to load. Javascripts take 156.5 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 16.2 kB

  • Original 21.3 kB
  • After minification 18.5 kB
  • After compression 5.1 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 2.8 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 16.2 kB or 76% of the original size.

Image Optimization

-4%

Potential reduce by 2.5 kB

  • Original 57.9 kB
  • After minification 55.4 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. Visualvm Java images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 108.0 kB

  • Original 156.5 kB
  • After minification 153.9 kB
  • After compression 48.5 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 108.0 kB or 69% of the original size.

CSS Optimization

-72%

Potential reduce by 44.1 kB

  • Original 61.0 kB
  • After minification 55.9 kB
  • After compression 16.9 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. Visualvm.java.net needs all CSS files to be minified and compressed as it can save up to 44.1 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (44%)

Requests Now

27

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Visualvm Java. 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 from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

visualvm.java.net

visualvm.java.net

215 ms

base_packaged.css

base_packaged.css

356 ms

head_packaged.js

head_packaged.js

348 ms

theme.css

theme.css

289 ms

visualvm.css

visualvm.css

282 ms

jquery.cookies.2.2.0.min.js

jquery.cookies.2.2.0.min.js

320 ms

jnlogin.js

jnlogin.js

276 ms

index.css

index.css

112 ms

shadowbox.css

shadowbox.css

277 ms

shadowbox.js

shadowbox.js

324 ms

screenshots.js

screenshots.js

366 ms

index.js

index.js

160 ms

s_code_remote.js

s_code_remote.js

221 ms

body_packaged.js

body_packaged.js

355 ms

close.gif

close.gif

191 ms

activity.gif

activity.gif

132 ms

b_filler.png

b_filler.png

76 ms

b_logo.png

b_logo.png

122 ms

b_javanet.png

b_javanet.png

81 ms

main_background_1.jpg

main_background_1.jpg

213 ms

main_links_background.png

main_links_background.png

135 ms

main_links_icon.png

main_links_icon.png

133 ms

follow_us-b.png

follow_us-b.png

156 ms

oracle.png

oracle.png

105 ms

kenai.png

kenai.png

104 ms

cognisync.png

cognisync.png

104 ms

metrics_group1.js

metrics_group1.js

104 ms

print_packaged.css

print_packaged.css

46 ms

java

java

646 ms

java

java

550 ms

java

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1534 ms

java

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1768 ms

SEO Factors

visualvm.java.net SEO score

0

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Visualvm.java.net 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 Visualvm.java.net 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.

Social Sharing Optimization

visualvm.java.net

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