Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

Page Load Speed

1.2 sec in total

First Response

313 ms

Resources Loaded

705 ms

Page Rendered

147 ms

javjam.net screenshot

About Website

Welcome to javjam.net homepage info - get ready to check JAVJAM best content for Japan right away, or after learning these important things about javjam.net

Visit javjam.net

Key Findings

We analyzed Javjam.net page load time and found that the first response time was 313 ms and then it took 852 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

javjam.net performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.477

18/100

15%

TTI (Time to Interactive)

Value4.1 s

87/100

10%

Network Requests Diagram

javjam.net

313 ms

style.css

79 ms

panel-logo.png

156 ms

parallels-logo.png

157 ms

top-bottom.png

80 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that all of those requests were addressed to Javjam.net and no external sources were called. The less responsive or slowest element that took the longest time to load (313 ms) belongs to the original domain Javjam.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 15.4 kB (19%)

Content Size

80.4 kB

After Optimization

65.0 kB

In fact, the total size of Javjam.net main page is 80.4 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. Only 10% of websites need less resources to load. Images take 66.9 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 6.6 kB

  • Original 8.8 kB
  • After minification 7.5 kB
  • After compression 2.2 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 1.2 kB, which is 14% 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 6.6 kB or 75% of the original size.

Image Optimization

-8%

Potential reduce by 5.4 kB

  • Original 66.9 kB
  • After minification 61.5 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. JAVJAM images are well optimized though.

CSS Optimization

-72%

Potential reduce by 3.4 kB

  • Original 4.7 kB
  • After minification 4.1 kB
  • After compression 1.4 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. Javjam.net needs all CSS files to be minified and compressed as it can save up to 3.4 kB or 72% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

16

After Optimization

16

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JAVJAM. According to our analytics all requests are already optimized.

Accessibility Review

javjam.net accessibility score

77

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

Form elements do not have associated labels

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

javjam.net best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

javjam.net SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

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