Tools & Wizards About Us
seiren.cc screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

seiren.cc

健康中華　青蓮　横浜　ランチ　ディナー　歓送迎会　貸切り　求人 【公式サイト】

Page Load Speed

6.9 sec in total

First Response

533 ms

Resources Loaded

5.8 sec

Page Rendered

558 ms

seiren.cc screenshot

About Website

Click here to check amazing Seiren content for Japan. Otherwise, check out these important facts you probably never knew about seiren.cc

健康中華 青蓮（せいれん）は、横浜、蒲田、戸塚、川崎、藤が丘、神保町、有明、浜松町などで展開している中華料理チェーンです。

Visit seiren.cc

Key Findings

We analyzed Seiren.cc page load time and found that the first response time was 533 ms and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

seiren.cc performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value23.9 s

0/100

25%

SI (Speed Index)

Value16.7 s

0/100

10%

TBT (Total Blocking Time)

Value160 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.417

23/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

seiren.cc

533 ms

www.seiren.cc

1565 ms

style.css

203 ms

theme.css

403 ms

common.css

533 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 71% of them (48 requests) were addressed to the original Seiren.cc, 22% (15 requests) were made to Static.xx.fbcdn.net and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Seiren.cc.

Page Optimization Overview & Recommendations

Page size can be reduced by 255.3 kB (8%)

Content Size

3.1 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Seiren.cc main page is 3.1 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. 65% of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 18.7 kB

  • Original 24.6 kB
  • After minification 22.2 kB
  • After compression 5.9 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 18.7 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 38.1 kB

  • Original 2.8 MB
  • After minification 2.8 MB

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. Seiren images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 137.8 kB

  • Original 211.0 kB
  • After minification 203.0 kB
  • After compression 73.1 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 137.8 kB or 65% of the original size.

CSS Optimization

-87%

Potential reduce by 60.6 kB

  • Original 70.0 kB
  • After minification 41.7 kB
  • After compression 9.4 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. Seiren.cc needs all CSS files to be minified and compressed as it can save up to 60.6 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (42%)

Requests Now

66

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seiren. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

seiren.cc

seiren.cc

533 ms

www.seiren.cc

www.seiren.cc

1565 ms

style.css

style.css

203 ms

theme.css

theme.css

403 ms

common.css

common.css

533 ms

files_common.css

files_common.css

528 ms

files_pc.css

files_pc.css

704 ms

jquery.SimplaModalwindow.css

jquery.SimplaModalwindow.css

540 ms

inquiry-form.css

inquiry-form.css

557 ms

jquery.js

jquery.js

772 ms

jquery-migrate.min.js

jquery-migrate.min.js

726 ms

jquery.SimplaModalwindow.js

jquery.SimplaModalwindow.js

724 ms

ajaxzip2.js

ajaxzip2.js

739 ms

jquery.upload.js

jquery.upload.js

755 ms

js

js

68 ms

jquery.min.js

jquery.min.js

23 ms

effect_pc.js

effect_pc.js

886 ms

html_bg.jpg

html_bg.jpg

199 ms

branding_box_bg.png

branding_box_bg.png

188 ms

sp1.gif

sp1.gif

187 ms

style.css

style.css

202 ms

topnavi.png

topnavi.png

420 ms

slide_01.jpg

slide_01.jpg

807 ms

slide_02.jpg

slide_02.jpg

1292 ms

cours_side.png

cours_side.png

750 ms

insta_banner.jpg

insta_banner.jpg

544 ms

fb_banner.jpg

fb_banner.jpg

555 ms

sp_reserve_bnr.jpg

sp_reserve_bnr.jpg

730 ms

5def50e61de26c8221b771822723e5c6-300x199.jpg

5def50e61de26c8221b771822723e5c6-300x199.jpg

760 ms

8f63e0f3bc452e65f4a8df26a26718b1.jpg

8f63e0f3bc452e65f4a8df26a26718b1.jpg

1273 ms

5ed2f1ba14637f379a65ead9a9732123.jpg

5ed2f1ba14637f379a65ead9a9732123.jpg

1779 ms

c34fe768fa5f76f2dda30eb35151f342.jpg

c34fe768fa5f76f2dda30eb35151f342.jpg

1289 ms

bento02_bnr2.jpg

bento02_bnr2.jpg

960 ms

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54112cd1c1689013560577b995863ab92.jpg

1013 ms

b7499ceb66fad4ed42006f19f7862d27.jpg

b7499ceb66fad4ed42006f19f7862d27.jpg

1331 ms

c2205c78916a1ca33cb9e2c8debcd2cc1.jpg

c2205c78916a1ca33cb9e2c8debcd2cc1.jpg

1212 ms

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c69c62f51d841c92c767568219a7285e1.jpg

1413 ms

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55e363b7a57ea2764c3a584ca48834161.jpg

1473 ms

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55047c659ac705144adf9871ea8611ae.jpg

1488 ms

4ed4dfead49f83b4697bbfc2137d0953.jpg

4ed4dfead49f83b4697bbfc2137d0953.jpg

1809 ms

btn_contact.png

btn_contact.png

1516 ms

page.php

page.php

358 ms

blog_bnr.jpg

blog_bnr.jpg

1541 ms

contact_bnr.jpg

contact_bnr.jpg

1601 ms

kanarepo_bnr.jpg

kanarepo_bnr.jpg

1618 ms

entry_title_bg.jpg

entry_title_bg.jpg

1645 ms

read_more_btn.png

read_more_btn.png

1725 ms

footer_bg02.png

footer_bg02.png

1787 ms

footer_box_bg.jpg

footer_box_bg.jpg

1812 ms

loading.gif

loading.gif

1820 ms

close.png

close.png

1874 ms

eOzOzediAge.css

eOzOzediAge.css

25 ms

XVfyC-hY3iC.js

XVfyC-hY3iC.js

33 ms

4vv_Lf70fZS.js

4vv_Lf70fZS.js

31 ms

8O2J-mJIMh1.js

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29 ms

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29 ms

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62 ms

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31 ms

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68 ms

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65 ms

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66 ms

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66 ms

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67 ms

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66 ms

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24 ms

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34 ms

UXtr_j2Fwe-.png

UXtr_j2Fwe-.png

19 ms

mFWyxjCB51c.js

mFWyxjCB51c.js

8 ms

Accessibility Review

seiren.cc accessibility score

76

Accessibility Issues

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

Form elements do not have associated labels

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

seiren.cc best practices score

67

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

High

Browser errors were logged to the console

SEO Factors

seiren.cc SEO score

93

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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 Seiren.cc 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 Seiren.cc 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

seiren.cc

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