Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

towa-kagaku.co.jp

株式会社東和化学、トランス用ボビン、フェライトコア用ボビン|株式会社東和化学 トランス用ボビンの製造・設計・OEM

Page Load Speed

2.7 sec in total

First Response

576 ms

Resources Loaded

2 sec

Page Rendered

95 ms

towa-kagaku.co.jp screenshot

About Website

Click here to check amazing Towa Kagaku content. Otherwise, check out these important facts you probably never knew about towa-kagaku.co.jp

株式会社東和化学のトップページ。トランス用ボビンの製造一筋で国内生産にこだわり、各種様々なサイズを標準品として取り揃え。硬化性樹脂・可塑性樹脂・ピン付きタイプ、ピン無しタイプ。金型の設計から製造まで、OEMでの受注生産も承っております。

Visit towa-kagaku.co.jp

Key Findings

We analyzed Towa-kagaku.co.jp page load time and found that the first response time was 576 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

towa-kagaku.co.jp performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value6,050 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.313

37/100

15%

TTI (Time to Interactive)

Value25.6 s

0/100

10%

Network Requests Diagram

towa-kagaku.co.jp

576 ms

links.html

311 ms

header.html

346 ms

1.html

390 ms

bg03A8.gif

307 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Towa-kagaku.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Towa-kagaku.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 839 B (2%)

Content Size

40.4 kB

After Optimization

39.6 kB

In fact, the total size of Towa-kagaku.co.jp main page is 40.4 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. Images take 39.5 kB which makes up the majority of the site volume.

HTML Optimization

-44%

Potential reduce by 400 B

  • Original 910 B
  • After minification 876 B
  • After compression 510 B

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 400 B or 44% of the original size.

Image Optimization

-1%

Potential reduce by 439 B

  • Original 39.5 kB
  • After minification 39.1 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. Towa Kagaku images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

18

After Optimization

18

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Towa Kagaku. According to our analytics all requests are already optimized.

Accessibility Review

towa-kagaku.co.jp accessibility score

83

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

High

ARIA toggle fields do not have accessible names

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

towa-kagaku.co.jp best practices score

75

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

towa-kagaku.co.jp SEO score

85

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    JA

  • Language Claimed

    N/A

  • Encoding

    X-SJIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Towa-kagaku.co.jp 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 Towa-kagaku.co.jp main page’s claimed encoding is x-sjis. 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 Towa Kagaku. 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: