Tools & Wizards About Us

Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

506506.ntt.com

NTTコミュニケーションズ | システムメンテナンス作業に伴うサービス停止のお知らせ

Page Load Speed

17.7 sec in total

First Response

902 ms

Resources Loaded

16.5 sec

Page Rendered

320 ms

About Website

Click here to check amazing 506506 Ntt content for Japan. Otherwise, check out these important facts you probably never knew about 506506.ntt.com

NTTコミュニケーションズの506506.ntt.com。国際電話、長距離電話、インターネット接続、光サービス、プラチナ・ラインの紹介など。

Visit 506506.ntt.com

Key Findings

We analyzed 506506.ntt.com page load time and found that the first response time was 902 ms and then it took 16.8 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

506506.ntt.com performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value19.5 s

0/100

10%

TBT (Total Blocking Time)

Value18,460 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.282

43/100

15%

TTI (Time to Interactive)

Value33.4 s

0/100

10%

Network Requests Diagram

506506.ntt.com

902 ms

index.cgi

260 ms

index.html

936 ms

common.css

921 ms

template_new.css

555 ms

Our browser made a total of 141 requests to load all elements on the main page. We found that 97% of them (137 requests) were addressed to the original 506506.ntt.com, 1% (1 request) were made to Googleadservices.com and 1% (1 request) were made to Www31.tracer.jp. The less responsive or slowest element that took the longest time to load (5.5 sec) belongs to the original domain 506506.ntt.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 616.4 kB (54%)

Content Size

1.2 MB

After Optimization

535.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 506506.ntt.com main page is 1.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 695.2 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 46.1 kB

  • Original 56.0 kB
  • After minification 53.0 kB
  • After compression 10.0 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. 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 46.1 kB or 82% of the original size.

Image Optimization

-39%

Potential reduce by 269.1 kB

  • Original 695.2 kB
  • After minification 426.0 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, 506506 Ntt needs image optimization as it can save up to 269.1 kB or 39% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 218.1 kB

  • Original 304.0 kB
  • After minification 265.3 kB
  • After compression 85.8 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 218.1 kB or 72% of the original size.

CSS Optimization

-86%

Potential reduce by 83.0 kB

  • Original 96.4 kB
  • After minification 66.5 kB
  • After compression 13.4 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. 506506.ntt.com needs all CSS files to be minified and compressed as it can save up to 83.0 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (10%)

Requests Now

137

After Optimization

123

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 137 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 506506 Ntt. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

506506.ntt.com accessibility score

70

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

506506.ntt.com 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

506506.ntt.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

High

Tap targets are not sized appropriately

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 506506.ntt.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 506506.ntt.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

Open Graph description is not detected on the main page of 506506 Ntt. 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: