Access chemquiry.kakurezato.com. Chemquiry　〜化学の探究〜

chemquiry.kakurezato.com screenshot

37

Performance

Renders faster than
57% of other websites
63

Accessibility

Visual factors better than
that of 28% of websites
62

Best Practices

More advanced features
available than in
24% of websites
77

SEO

Google-friendlier than
36% of websites

First Response

576 ms

Resources Loaded

8.3 sec

Page Rendered

294 ms

chemquiry.kakurezato.com screenshot

About Website

Welcome to chemquiry.kakurezato.com homepage info - get ready to check Chemquiry Kakurezato best content for Japan right away, or after learning these important things about chemquiry.kakurezato.com

「挑戦！化学グランプリ」「決戦！化学オリンピック」「知られざる元素トリビア」「有機化学の部屋」など、化学をとことん探求するサイト。全国高校化学グランプリ、国際化学オリンピックの応援・解説や、元素トリビアの紹介など興味深い化学の話題を掲載。バカテスト解説も。

Visit chemquiry.kakurezato.com

Key Findings

We analyzed Chemquiry.kakurezato.com page load time and found that the first response time was 576 ms and then it took 8.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value800 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.9 s

13/100

10%

chemquiry.kakurezato.com

576 ms

top.css

338 ms

top_ele.css

339 ms

link.css

344 ms

analy.js

347 ms

Our browser made a total of 174 requests to load all elements on the main page. We found that 11% of them (19 requests) were addressed to the original Chemquiry.kakurezato.com, 11% (19 requests) were made to Asumi.shinobi.jp and 7% (13 requests) were made to Ums.adtechjp.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Chemquiry.kakurezato.com.

Content Size

694.9 kB

After Optimization

577.6 kB

In fact, the total size of Chemquiry.kakurezato.com main page is 694.9 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. 30% of websites need less resources to load. Images take 517.6 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 26.2 kB

Original 36.8 kB
After minification 34.9 kB
After compression 10.6 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 26.2 kB or 71% of the original size.

Image Optimization

-9%

Potential reduce by 44.1 kB

Original 517.6 kB
After minification 473.4 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. Chemquiry Kakurezato images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 39.8 kB

Original 131.4 kB
After minification 127.8 kB
After compression 91.6 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 39.8 kB or 30% of the original size.

CSS Optimization

-78%

Potential reduce by 7.1 kB

Original 9.1 kB
After minification 6.9 kB
After compression 2.0 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. Chemquiry.kakurezato.com needs all CSS files to be minified and compressed as it can save up to 7.1 kB or 78% of the original size.

Requests Now

150

After Optimization

19

The browser has sent 150 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemquiry Kakurezato. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 5 to 1 for CSS 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

[id] attributes on active, focusable elements are not unique

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.

High

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

Language and Encoding

Language Detected

JA
Language Claimed

N/A
Encoding

SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chemquiry.kakurezato.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese 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 Chemquiry.kakurezato.com 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

chemquiry.kakurezato.com

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