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caywan.com screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

caywan.com

ケイワン／光学薄膜設計ソフトOptiLayer

Page Load Speed

4.5 sec in total

First Response

972 ms

Resources Loaded

3.3 sec

Page Rendered

184 ms

caywan.com screenshot

About Website

Welcome to caywan.com homepage info - get ready to check Caywan best content right away, or after learning these important things about caywan.com

世界No.1の光学薄膜設計ソフトです。初心者から上級者まで使いやすく強力なインターフェースを有しています。

Visit caywan.com

Key Findings

We analyzed Caywan.com page load time and found that the first response time was 972 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

caywan.com performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

caywan.com

972 ms

hpbparts.css

761 ms

container_1Ba_2c_left.css

582 ms

main_1Ba_2c.css

777 ms

user.css

371 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 Caywan.com and no external sources were called. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Caywan.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 117.9 kB (29%)

Content Size

402.0 kB

After Optimization

284.1 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Caywan.com main page is 402.0 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 351.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 12.5 kB

  • Original 15.6 kB
  • After minification 9.9 kB
  • After compression 3.1 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 5.7 kB, which is 36% 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 12.5 kB or 80% of the original size.

Image Optimization

-21%

Potential reduce by 74.0 kB

  • Original 351.1 kB
  • After minification 277.1 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. Obviously, Caywan needs image optimization as it can save up to 74.0 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-89%

Potential reduce by 31.4 kB

  • Original 35.3 kB
  • After minification 22.3 kB
  • After compression 3.9 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. Caywan.com needs all CSS files to be minified and compressed as it can save up to 31.4 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (17%)

Requests Now

18

After Optimization

15

  • Images
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Caywan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

caywan.com

caywan.com

972 ms

hpbparts.css

hpbparts.css

761 ms

container_1Ba_2c_left.css

container_1Ba_2c_left.css

582 ms

main_1Ba_2c.css

main_1Ba_2c.css

777 ms

user.css

user.css

371 ms

bg_1Ba_01_01.png

bg_1Ba_01_01.png

209 ms

fbg_1Ba.png

fbg_1Ba.png

375 ms

logo_1Ba.png

logo_1Ba.png

797 ms

top_mainimg_1Ba_01.png

top_mainimg_1Ba_01.png

1957 ms

indexBg_1Ba.png

indexBg_1Ba.png

411 ms

point_1Ba.png

point_1Ba.png

423 ms

returnTop_1Ba.png

returnTop_1Ba.png

597 ms

navbg_1Ba_01.png

navbg_1Ba_01.png

994 ms

navitembg_1Ba_01.png

navitembg_1Ba_01.png

830 ms

navitemabg_1Ba_01.png

navitemabg_1Ba_01.png

1182 ms

top_banner_1Ba_01.png

top_banner_1Ba_01.png

1589 ms

top_banner_1Ba_02.png

top_banner_1Ba_02.png

1787 ms

top_banner_1Ba_03.png

top_banner_1Ba_03.png

1751 ms

fpoint_1Ba.png

fpoint_1Ba.png

1369 ms

Accessibility Review

caywan.com accessibility score

74

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

caywan.com best practices score

75

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

Serves images with low resolution

SEO Factors

caywan.com SEO score

67

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

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

caywan.com

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