Report Summary

  • 64

    Performance

    Renders faster than
    78% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

kagurazaka-iin.com

神楽坂医院 | 内科・麻酔科(ペインクリニック科)・整形外科・外科・大腸肛門外科 | 東京都新宿区神楽坂3-6

Page Load Speed

6 sec in total

First Response

578 ms

Resources Loaded

5.2 sec

Page Rendered

133 ms

kagurazaka-iin.com screenshot

About Website

Welcome to kagurazaka-iin.com homepage info - get ready to check Kagurazaka Iin best content right away, or after learning these important things about kagurazaka-iin.com

神楽坂医院[東京都新宿区]の診療科目は内科・麻酔科(ペインクリニック科)・整形外科・外科・大腸肛門外科です。

Visit kagurazaka-iin.com

Key Findings

We analyzed Kagurazaka-iin.com page load time and found that the first response time was 578 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

kagurazaka-iin.com performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value6.0 s

46/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.072

96/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

Network Requests Diagram

kagurazaka-iin.com

578 ms

www.kagurazaka-iin.com

906 ms

spacer.gif

336 ms

top2008_r1_c1.gif

336 ms

top2008_r2_c1.gif

352 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that all of those requests were addressed to Kagurazaka-iin.com and no external sources were called. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Kagurazaka-iin.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 57.1 kB (71%)

Content Size

80.4 kB

After Optimization

23.3 kB

In fact, the total size of Kagurazaka-iin.com main page is 80.4 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. HTML takes 42.0 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 36.5 kB

  • Original 42.0 kB
  • After minification 39.3 kB
  • After compression 5.5 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 36.5 kB or 87% of the original size.

Image Optimization

-33%

Potential reduce by 7.6 kB

  • Original 22.9 kB
  • After minification 15.3 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, Kagurazaka Iin needs image optimization as it can save up to 7.6 kB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-83%

Potential reduce by 12.9 kB

  • Original 15.5 kB
  • After minification 13.0 kB
  • After compression 2.6 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 12.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (75%)

Requests Now

48

After Optimization

12

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kagurazaka Iin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

kagurazaka-iin.com accessibility score

52

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

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

kagurazaka-iin.com best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

kagurazaka-iin.com SEO score

85

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

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

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

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kagurazaka-iin.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 Kagurazaka-iin.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 Kagurazaka Iin. 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: