Tools & Wizards About Us

Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

ylyonline.com

【超重要】口コミで1番人気！沖縄の優良ダイビングショップ

Page Load Speed

4.5 sec in total

First Response

737 ms

Resources Loaded

3.5 sec

Page Rendered

175 ms

About Website

Click here to check amazing Ylyonline content. Otherwise, check out these important facts you probably never knew about ylyonline.com

沖縄でダイビングをする時は自分に適したダイビングショップを選ぶのがおすすめです。初めて沖縄に行ってダイビングショップを利

Visit ylyonline.com

Key Findings

We analyzed Ylyonline.com page load time and found that the first response time was 737 ms and then it took 3.7 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

ylyonline.com performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

56/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.1 s

95/100

10%

Network Requests Diagram

ylyonline.com

737 ms

style.css

347 ms

logo.png

870 ms

mainImage.png

2974 ms

header.png

177 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that all of those requests were addressed to Ylyonline.com and no external sources were called. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Ylyonline.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (61%)

Content Size

1.9 MB

After Optimization

759.2 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Ylyonline.com main page is 1.9 MB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 3.6 kB

  • Original 5.7 kB
  • After minification 5.0 kB
  • After compression 2.0 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. This page needs HTML code to be minified as it can gain 612 B, which is 11% 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 3.6 kB or 64% of the original size.

Image Optimization

-61%

Potential reduce by 1.2 MB

  • Original 1.9 MB
  • After minification 756.0 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, Ylyonline needs image optimization as it can save up to 1.2 MB or 61% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-75%

Potential reduce by 3.2 kB

  • Original 4.3 kB
  • After minification 3.0 kB
  • After compression 1.1 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. Ylyonline.com needs all CSS files to be minified and compressed as it can save up to 3.2 kB or 75% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ylyonline. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

ylyonline.com accessibility score

100

Accessibility Issues

Best Practices

ylyonline.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

ylyonline.com SEO score

86

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

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

    UTF-8

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

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