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deriheru-tokyo.com screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

Page Load Speed

31.7 sec in total

First Response

402 ms

Resources Loaded

30.9 sec

Page Rendered

438 ms

deriheru-tokyo.com screenshot

About Website

Welcome to deriheru-tokyo.com homepage info - get ready to check Deriheru Tokyo best content right away, or after learning these important things about deriheru-tokyo.com

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Key Findings

We analyzed Deriheru-tokyo.com page load time and found that the first response time was 402 ms and then it took 31.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 10 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

deriheru-tokyo.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value7.6 s

26/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.36

30/100

15%

TTI (Time to Interactive)

Value5.0 s

77/100

10%

Network Requests Diagram

pc

402 ms

866 ms

common.css

370 ms

jquery-1.10.2.min.js

1282 ms

jquery-migrate-1.2.1.min.js

369 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 98% of them (104 requests) were addressed to the original Deriheru-tokyo.com, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (20.1 sec) belongs to the original domain Deriheru-tokyo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 228.5 kB (23%)

Content Size

1.0 MB

After Optimization

782.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Deriheru-tokyo.com main page is 1.0 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. 30% of websites need less resources to load. Images take 807.5 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 31.2 kB

  • Original 37.1 kB
  • After minification 31.2 kB
  • After compression 5.8 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 5.8 kB, which is 16% 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 31.2 kB or 84% of the original size.

Image Optimization

-11%

Potential reduce by 91.1 kB

  • Original 807.5 kB
  • After minification 716.4 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, Deriheru Tokyo needs image optimization as it can save up to 91.1 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-63%

Potential reduce by 96.7 kB

  • Original 154.1 kB
  • After minification 153.9 kB
  • After compression 57.4 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 96.7 kB or 63% of the original size.

CSS Optimization

-80%

Potential reduce by 9.4 kB

  • Original 11.8 kB
  • After minification 9.5 kB
  • After compression 2.4 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. Deriheru-tokyo.com needs all CSS files to be minified and compressed as it can save up to 9.4 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (4%)

Requests Now

94

After Optimization

90

  • Images
  • JavaScript
  • CSS

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Deriheru Tokyo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

pc

pc

402 ms

866 ms

common.css

common.css

370 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

1282 ms

jquery-migrate-1.2.1.min.js

jquery-migrate-1.2.1.min.js

369 ms

common.js

common.js

372 ms

coverSlider.js

coverSlider.js

377 ms

bg-body.png

bg-body.png

393 ms

hdr-logo.jpg

hdr-logo.jpg

1022 ms

353.jpg

353.jpg

859 ms

349.jpg

349.jpg

1414 ms

221.jpg

221.jpg

936 ms

341.jpg

341.jpg

873 ms

329.jpg

329.jpg

1298 ms

493.jpg

493.jpg

1313 ms

277.jpg

277.jpg

1694 ms

317.jpg

317.jpg

2049 ms

365.jpg

365.jpg

2055 ms

305.jpg

305.jpg

2056 ms

517.jpg

517.jpg

2090 ms

637.jpg

637.jpg

2133 ms

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565.jpg

2399 ms

234x60.jpg

234x60.jpg

2418 ms

331.gif

331.gif

3843 ms

343.gif

343.gif

5009 ms

249.gif

249.gif

16116 ms

246.gif

246.gif

20134 ms

251.gif

251.gif

15397 ms

247.gif

247.gif

18572 ms

347.gif

347.gif

7597 ms

468x60.jpg

468x60.jpg

5606 ms

120x90.jpg

120x90.jpg

6016 ms

245.gif

245.gif

11430 ms

150x500.jpg

150x500.jpg

8145 ms

447.jpg

447.jpg

16283 ms

time-icon.jpg

time-icon.jpg

11865 ms

446.jpg

446.jpg

20071 ms

711.jpg

711.jpg

15910 ms

710.jpg

710.jpg

20062 ms

231.jpg

231.jpg

20110 ms

230.jpg

230.jpg

20074 ms

723.jpg

723.jpg

20107 ms

analytics.js

analytics.js

129 ms

722.jpg

722.jpg

19995 ms

collect

collect

29 ms

267.jpg

267.jpg

19753 ms

266.gif

266.gif

19631 ms

279.jpg

279.jpg

19621 ms

278.jpg

278.jpg

19576 ms

255.jpg

255.jpg

19497 ms

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254.jpg

19234 ms

363.jpg

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19225 ms

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362.jpg

19445 ms

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19178 ms

638.gif

638.gif

20083 ms

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20077 ms

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566.gif

20075 ms

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20041 ms

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578.gif

19999 ms

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591.jpg

19735 ms

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19715 ms

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351.jpg

19270 ms

350.gif

350.gif

19872 ms

519.jpg

519.jpg

17964 ms

518.gif

518.gif

18877 ms

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17150 ms

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15276 ms

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13742 ms

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12473 ms

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9128 ms

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8818 ms

223.jpg

223.jpg

9059 ms

222.gif

222.gif

9243 ms

283.

283.

7319 ms

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5272 ms

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5272 ms

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5470 ms

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5442 ms

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5623 ms

331.jpg

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5611 ms

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5745 ms

343.jpg

343.jpg

5848 ms

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342.jpg

5504 ms

355.jpg

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5650 ms

354.jpg

354.jpg

5691 ms

367.jpg

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5822 ms

366.jpg

366.jpg

5809 ms

img-agecheck.png

img-agecheck.png

6002 ms

bt-enter.png

bt-enter.png

5701 ms

bt-exit.png

bt-exit.png

5808 ms

img-qr.png

img-qr.png

4587 ms

h-group.png

h-group.png

4787 ms

h-relatiive.png

h-relatiive.png

4802 ms

bg-hdr.png

bg-hdr.png

5571 ms

bg-title.png

bg-title.png

5014 ms

bg-header525.png

bg-header525.png

5217 ms

bg-side.png

bg-side.png

5235 ms

bg-sideHeader02.png

bg-sideHeader02.png

4279 ms

bg-header740.png

bg-header740.png

3979 ms

bg-header745.png

bg-header745.png

3964 ms

bg-sideHeader01.png

bg-sideHeader01.png

3407 ms

bg-sideList.png

bg-sideList.png

3223 ms

bg-sideUrl.png

bg-sideUrl.png

3052 ms

bg-ftr.png

bg-ftr.png

3030 ms

ftr-logo.png

ftr-logo.png

3036 ms

blt-01.png

blt-01.png

3186 ms

Accessibility Review

deriheru-tokyo.com accessibility score

95

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

Links do not have a discernible name

Best Practices

deriheru-tokyo.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

deriheru-tokyo.com SEO score

83

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Deriheru-tokyo.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Deriheru-tokyo.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

deriheru-tokyo.com

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