Tools & Wizards About Us

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

crystal-dc.com

名古屋でインプラント治療なら、クリスタル歯科｜歯科恐怖症外来併設 -

Page Load Speed

8 sec in total

First Response

564 ms

Resources Loaded

6.7 sec

Page Rendered

684 ms

About Website

Welcome to crystal-dc.com homepage info - get ready to check Crystal Dc best content right away, or after learning these important things about crystal-dc.com

名古屋でインプラント治療なら、歯科恐怖症外来併設、静脈鎮静法による無痛治療で快適なインプラント治療が可能。インプラント治療はもちろんのこと、むし歯治療や歯周病治療、審美歯科、ホワイトニング、矯正歯科等も行っています。費用面でご不安な方も、まずはお気軽にご相談ください。

Visit crystal-dc.com

Key Findings

We analyzed Crystal-dc.com page load time and found that the first response time was 564 ms and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

crystal-dc.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.573

12/100

15%

TTI (Time to Interactive)

Value8.2 s

40/100

10%

Network Requests Diagram

crystal-dc.com

564 ms

crystal-dc.com

1525 ms

prototype.js

182 ms

scriptaculous.js

363 ms

layercommon.js

531 ms

Our browser made a total of 119 requests to load all elements on the main page. We found that 96% of them (114 requests) were addressed to the original Crystal-dc.com, 2% (2 requests) were made to Ssl.google-analytics.com and 1% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Crystal-dc.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 93.3 kB (12%)

Content Size

770.0 kB

After Optimization

676.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Crystal-dc.com main page is 770.0 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. 40% of websites need less resources to load. Images take 583.4 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 43.9 kB

  • Original 57.2 kB
  • After minification 51.4 kB
  • After compression 13.4 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 43.9 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 290 B

  • Original 583.4 kB
  • After minification 583.2 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. Crystal Dc images are well optimized though.

JavaScript Optimization

-37%

Potential reduce by 44.9 kB

  • Original 120.3 kB
  • After minification 119.7 kB
  • After compression 75.4 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 44.9 kB or 37% of the original size.

CSS Optimization

-47%

Potential reduce by 4.2 kB

  • Original 9.0 kB
  • After minification 7.8 kB
  • After compression 4.8 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. Crystal-dc.com needs all CSS files to be minified and compressed as it can save up to 4.2 kB or 47% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (16%)

Requests Now

116

After Optimization

97

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Crystal Dc. 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 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

crystal-dc.com accessibility score

87

Accessibility Issues

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

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

crystal-dc.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

crystal-dc.com SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 Crystal-dc.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 Crystal-dc.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 Crystal Dc. 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: