Tools & Wizards About Us
yokokou.co.jp screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

yokokou.co.jp

ファイバーレーザー加工品・メタルジャケットガスケット・シム・各種パッキン│株式会社横浜工業所

Page Load Speed

9 sec in total

First Response

583 ms

Resources Loaded

8.1 sec

Page Rendered

317 ms

yokokou.co.jp screenshot

About Website

Welcome to yokokou.co.jp homepage info - get ready to check Yokokou best content right away, or after learning these important things about yokokou.co.jp

ファイバーレーザー加工品・メタルジャケットガスケット等の製造やパッキン・銅パッキン・アルミパッキンやOリングの販売なら株式会社横浜工業所。ご依頼に対して、特急対応、短納期にてご対応致します。各種ガスケット・金属加工・シム・調整ライナー・スペーサー等、規格外の商品もお気軽にご相談ください。

Visit yokokou.co.jp

Key Findings

We analyzed Yokokou.co.jp page load time and found that the first response time was 583 ms and then it took 8.4 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

yokokou.co.jp performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

6/100

10%

LCP (Largest Contentful Paint)

Value14.9 s

0/100

25%

SI (Speed Index)

Value9.5 s

11/100

10%

TBT (Total Blocking Time)

Value230 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value7.0 s

53/100

10%

Network Requests Diagram

yokokou.co.jp

583 ms

www.yokokou.co.jp

962 ms

common.css

292 ms

base.css

297 ms

top.css

332 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 92% of them (83 requests) were addressed to the original Yokokou.co.jp, 4% (4 requests) were made to Google.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Yokokou.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 357.0 kB (18%)

Content Size

2.0 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Yokokou.co.jp main page is 2.0 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. 55% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 17.3 kB

  • Original 22.5 kB
  • After minification 20.4 kB
  • After compression 5.2 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 17.3 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 73.1 kB

  • Original 1.6 MB
  • After minification 1.6 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. Yokokou images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 233.2 kB

  • Original 295.3 kB
  • After minification 168.8 kB
  • After compression 62.1 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 233.2 kB or 79% of the original size.

CSS Optimization

-84%

Potential reduce by 33.3 kB

  • Original 39.6 kB
  • After minification 25.7 kB
  • After compression 6.3 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. Yokokou.co.jp needs all CSS files to be minified and compressed as it can save up to 33.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (11%)

Requests Now

88

After Optimization

78

  • Images
  • JavaScript
  • CSS

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yokokou. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

yokokou.co.jp

yokokou.co.jp

583 ms

www.yokokou.co.jp

www.yokokou.co.jp

962 ms

common.css

common.css

292 ms

base.css

base.css

297 ms

top.css

top.css

332 ms

jquery.js

jquery.js

927 ms

common.lib.js

common.lib.js

370 ms

jquery.page-scroller.js

jquery.page-scroller.js

371 ms

jsapi

jsapi

47 ms

state2.js

state2.js

1194 ms

ga.js

ga.js

69 ms

bg_body.jpg

bg_body.jpg

348 ms

bg_home.jpg

bg_home.jpg

1480 ms

logo.png

logo.png

390 ms

hd_txt.png

hd_txt.png

392 ms

hd_tel.png

hd_tel.png

398 ms

bg_hd_inq.png

bg_hd_inq.png

422 ms

hd_inq.png

hd_inq.png

687 ms

bg_hd_fax.png

bg_hd_fax.png

734 ms

hd_fax.png

hd_fax.png

733 ms

bg_nav.jpg

bg_nav.jpg

731 ms

nav00_on.jpg

nav00_on.jpg

762 ms

nav01.jpg

nav01.jpg

1120 ms

nav02.jpg

nav02.jpg

1023 ms

nav03.jpg

nav03.jpg

1049 ms

nav04.jpg

nav04.jpg

1094 ms

nav06.jpg

nav06.jpg

1123 ms

main_home.png

main_home.png

1457 ms

bg_tit2.jpg

bg_tit2.jpg

1590 ms

tit_aboutus.jpg

tit_aboutus.jpg

1527 ms

bg_aboutus.jpg

bg_aboutus.jpg

1425 ms

tit_aboutus1.png

tit_aboutus1.png

1456 ms

img_aboutus1.jpg

img_aboutus1.jpg

1892 ms

btn_detail1.jpg

btn_detail1.jpg

1796 ms

tit_aboutus2.png

tit_aboutus2.png

1804 ms

img_aboutus2.jpg

img_aboutus2.jpg

1942 ms

tit_aboutus3.png

tit_aboutus3.png

1906 ms

img_aboutus3.jpg

img_aboutus3.jpg

2104 ms

tit_aboutus4.png

tit_aboutus4.png

2106 ms

img_aboutus4.jpg

img_aboutus4.jpg

2357 ms

bg_tit1.jpg

bg_tit1.jpg

2240 ms

tit_products.jpg

tit_products.jpg

2437 ms

st_ca1.jpg

st_ca1.jpg

2518 ms

img_ca1.jpg

img_ca1.jpg

2561 ms

txt_ca1.jpg

txt_ca1.jpg

2418 ms

btn_detail2.jpg

btn_detail2.jpg

2549 ms

st_ca2.jpg

st_ca2.jpg

2694 ms

__utm.gif

__utm.gif

12 ms

19 ms

default+en.css

default+en.css

2 ms

default+en.I.js

default+en.I.js

7 ms

img_ca2.jpg

img_ca2.jpg

2667 ms

txt_ca2.jpg

txt_ca2.jpg

2418 ms

st_ca3.jpg

st_ca3.jpg

2476 ms

img_ca3.jpg

img_ca3.jpg

2669 ms

txt_ca3.jpg

txt_ca3.jpg

2497 ms

st_ca4.jpg

st_ca4.jpg

2377 ms

img_ca4.jpg

img_ca4.jpg

2417 ms

txt_ca4.jpg

txt_ca4.jpg

2505 ms

st_ca5.jpg

st_ca5.jpg

2505 ms

img_ca5.jpg

img_ca5.jpg

2745 ms

txt_ca5.jpg

txt_ca5.jpg

2333 ms

st_ca6.jpg

st_ca6.jpg

2328 ms

img_ca6.jpg

img_ca6.jpg

2533 ms

txt_ca6.jpg

txt_ca6.jpg

2459 ms

tit_plines.jpg

tit_plines.jpg

2662 ms

line1.jpg

line1.jpg

2386 ms

arw.gif

arw.gif

2212 ms

line2.jpg

line2.jpg

2560 ms

line3.jpg

line3.jpg

2567 ms

tit_strong.jpg

tit_strong.jpg

2613 ms

img_strong.jpg

img_strong.jpg

2599 ms

bg_tit11.jpg

bg_tit11.jpg

2899 ms

tit_news.jpg

tit_news.jpg

2873 ms

icon_rss.jpg

icon_rss.jpg

2503 ms

btn_list.jpg

btn_list.jpg

2525 ms

sd_logo.jpg

sd_logo.jpg

2678 ms

sd_icon1.jpg

sd_icon1.jpg

2399 ms

sd_icon2.jpg

sd_icon2.jpg

2630 ms

arw_up.gif

arw_up.gif

2501 ms

bg_foot.jpg

bg_foot.jpg

3051 ms

ft_logo.png

ft_logo.png

2566 ms

get_adobe_reader.png

get_adobe_reader.png

2749 ms

nav01_on.jpg

nav01_on.jpg

2697 ms

nav02_on.jpg

nav02_on.jpg

2536 ms

nav03_on.jpg

nav03_on.jpg

2573 ms

nav04_on.jpg

nav04_on.jpg

2624 ms

nav06_on.jpg

nav06_on.jpg

2602 ms

btn_detail1_on.jpg

btn_detail1_on.jpg

2666 ms

btn_detail2_on.jpg

btn_detail2_on.jpg

2604 ms

Accessibility Review

yokokou.co.jp 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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

yokokou.co.jp best practices score

58

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

yokokou.co.jp SEO score

58

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

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 Yokokou.co.jp 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 Yokokou.co.jp 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

yokokou.co.jp

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