Tools & Wizards About Us

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

tls-osaka.com

大阪梅田のタイ語教室 - TLS大阪タイ語学校

Page Load Speed

4.7 sec in total

First Response

544 ms

Resources Loaded

3.7 sec

Page Rendered

535 ms

About Website

Welcome to tls-osaka.com homepage info - get ready to check Tls Osaka best content right away, or after learning these important things about tls-osaka.com

大阪市北区の梅田駅、ＴＬＳ大阪タイ語学校です。通学とオンラインレッスンの併用が可能です。法人向け語学研修と赴任前語学研修には絶対の自信があります。タイ語検定協会公認の「タイ語検定 対策講座・過去問講座」や「タイ人向け日本語講座」などタイ語に関する多彩なレッスンメニューをご用意しています。体験レッスンは無料ですので、まずはお気軽にお問い合わせ下さい！

Visit tls-osaka.com

Key Findings

We analyzed Tls-osaka.com page load time and found that the first response time was 544 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

tls-osaka.com performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

54/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value380 ms

70/100

30%

CLS (Cumulative Layout Shift)

Value0.185

66/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

tls-osaka.com

544 ms

tls-osaka.com

723 ms

base.css

1267 ms

header-footer-l.css

1130 ms

osaka-l.css

178 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 22% of them (11 requests) were addressed to the original Tls-osaka.com, 36% (18 requests) were made to Platform.twitter.com and 18% (9 requests) were made to Tls-group.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Tls-group.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 110.9 kB (17%)

Content Size

648.8 kB

After Optimization

537.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tls-osaka.com main page is 648.8 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. 65% of websites need less resources to load. Images take 440.4 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 14.2 kB

  • Original 21.9 kB
  • After minification 20.8 kB
  • After compression 7.7 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 14.2 kB or 65% of the original size.

Image Optimization

-14%

Potential reduce by 62.2 kB

  • Original 440.4 kB
  • After minification 378.2 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, Tls Osaka needs image optimization as it can save up to 62.2 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-20%

Potential reduce by 33.1 kB

  • Original 168.3 kB
  • After minification 168.3 kB
  • After compression 135.2 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 33.1 kB or 20% of the original size.

CSS Optimization

-8%

Potential reduce by 1.4 kB

  • Original 18.1 kB
  • After minification 18.1 kB
  • After compression 16.7 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. Tls-osaka.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 28 (60%)

Requests Now

47

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tls Osaka. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

tls-osaka.com accessibility score

59

Accessibility Issues

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

Buttons do not have an accessible name

High

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

tls-osaka.com best practices score

83

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

tls-osaka.com SEO score

92

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

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tls-osaka.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 Tls-osaka.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 Tls Osaka. 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: