Access cssnite.jp. 開催情報：CSS Nite

Report Summary

About Website

Click here to check amazing CSS Nite content for Japan. Otherwise, check out these important facts you probably never knew about cssnite.jp

「CSS」だけでなく、Web制作全般に関するトピックを取り上げるセミナーイベント。都内のほか、神戸、岡山、甲府、札幌、静岡、高知、福岡、大阪、青森でも開催

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name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

26/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value480 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.185

66/100

15%

TTI (Time to Interactive)

Value5.1 s

76/100

10%

cssnite.jp

1103 ms

bootstrap.min.css

39 ms

font-awesome.min.css

33 ms

custom.css

558 ms

logo-CSSNite2015.svg

380 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 52% of them (16 requests) were addressed to the original Cssnite.jp, 13% (4 requests) were made to Maxcdn.bootstrapcdn.com and 10% (3 requests) were made to Stacademy-images.s3.amazonaws.com. The less responsive or slowest element that took the longest time to load (4.2 sec) relates to the external source Yama-web.com.

Content Size

7.3 MB

After Optimization

4.0 MB

In fact, the total size of Cssnite.jp main page is 7.3 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. 25% of websites need less resources to load. Images take 7.1 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 21.7 kB

Original 28.2 kB
After minification 22.5 kB
After compression 6.5 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 5.6 kB, which is 20% 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 21.7 kB or 77% of the original size.

Image Optimization

-44%

Potential reduce by 3.1 MB

Original 7.1 MB
After minification 4.0 MB

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, CSS Nite needs image optimization as it can save up to 3.1 MB or 44% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-44%

Potential reduce by 36.4 kB

Original 83.1 kB
After minification 81.1 kB
After compression 46.7 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 36.4 kB or 44% of the original size.

CSS Optimization

-82%

Potential reduce by 132.2 kB

Original 160.5 kB
After minification 157.5 kB
After compression 28.3 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. Cssnite.jp needs all CSS files to be minified and compressed as it can save up to 132.2 kB or 82% of the original size.

Requests Now

After Optimization

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CSS Nite. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

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

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cssnite.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Cssnite.jp 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

cssnite.jp

Open Graph data is detected on the main page of CSS Nite. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

開催情報：CSS Nite

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)