Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

slow-jam.jp

slow-jam.jp - slow jam Resources and Information.

Page Load Speed

2.5 sec in total

First Response

560 ms

Resources Loaded

1.9 sec

Page Rendered

84 ms

slow-jam.jp screenshot

About Website

Welcome to slow-jam.jp homepage info - get ready to check Slow Jam best content right away, or after learning these important things about slow-jam.jp

slow-jam.jp is your first and best source for all of the information you’re looking for. From general topics to more of what you would expect to find here, slow-jam.jp has it all. We hope you find wha...

Visit slow-jam.jp

Key Findings

We analyzed Slow-jam.jp page load time and found that the first response time was 560 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

slow-jam.jp performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

96/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.5 s

100/100

10%

Network Requests Diagram

slow-jam.jp

560 ms

iepngfix.js

187 ms

jquery-1.2.6.min.js

629 ms

jquery.bgpos.js

335 ms

index_import.css

357 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that all of those requests were addressed to Slow-jam.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (676 ms) belongs to the original domain Slow-jam.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 48.1 kB (69%)

Content Size

69.6 kB

After Optimization

21.5 kB

In fact, the total size of Slow-jam.jp main page is 69.6 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 60.2 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 1.7 kB

  • Original 2.7 kB
  • After minification 2.5 kB
  • After compression 1.0 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 1.7 kB or 63% of the original size.

Image Optimization

-1%

Potential reduce by 14 B

  • Original 1.5 kB
  • After minification 1.5 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. Slow Jam images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 42.4 kB

  • Original 60.2 kB
  • After minification 58.7 kB
  • After compression 17.8 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 42.4 kB or 70% of the original size.

CSS Optimization

-77%

Potential reduce by 4.0 kB

  • Original 5.2 kB
  • After minification 4.1 kB
  • After compression 1.2 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. Slow-jam.jp needs all CSS files to be minified and compressed as it can save up to 4.0 kB or 77% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

15

After Optimization

15

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slow Jam. According to our analytics all requests are already optimized.

Accessibility Review

slow-jam.jp accessibility score

100

Accessibility Issues

Best Practices

slow-jam.jp best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

slow-jam.jp SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    JA

  • Encoding

    SHIFT-JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Slow-jam.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Japanese language. Our system also found out that Slow-jam.jp main page’s claimed encoding is shift-jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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