Tools & Wizards About Us
z-saw.co.jp screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

z-saw.co.jp

のこぎりメーカー ゼットソーの公式サイト 日本製・高品質鋸の製造・販売

Page Load Speed

6.7 sec in total

First Response

1.2 sec

Resources Loaded

5.1 sec

Page Rendered

404 ms

z-saw.co.jp screenshot

About Website

Click here to check amazing Z Saw content for Japan. Otherwise, check out these important facts you probably never knew about z-saw.co.jp

ゼットソーは、1982年に世界で初めて鋸（のこぎり）の刃先に衝撃焼入れ処理した替刃式のこぎりとして発売され、発売以来1.5億枚を超えるロングセラー商品となりました。

Visit z-saw.co.jp

Key Findings

We analyzed Z-saw.co.jp page load time and found that the first response time was 1.2 sec and then it took 5.5 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

z-saw.co.jp performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value15.4 s

0/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.154

75/100

15%

TTI (Time to Interactive)

Value11.8 s

17/100

10%

Network Requests Diagram

z-saw.co.jp

1183 ms

CFInstall.min.js

30 ms

swfobject_modified.js

773 ms

colorbox.css

590 ms

jquery.min.js

72 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 78% of them (56 requests) were addressed to the original Z-saw.co.jp, 6% (4 requests) were made to Platform.twitter.com and 3% (2 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Z-saw.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 445.2 kB (18%)

Content Size

2.4 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Z-saw.co.jp main page is 2.4 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. 45% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 30.6 kB

  • Original 40.2 kB
  • After minification 31.9 kB
  • After compression 9.6 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 8.4 kB, which is 21% 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 30.6 kB or 76% of the original size.

Image Optimization

-12%

Potential reduce by 256.4 kB

  • Original 2.2 MB
  • After minification 1.9 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. Obviously, Z Saw needs image optimization as it can save up to 256.4 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-78%

Potential reduce by 122.3 kB

  • Original 156.1 kB
  • After minification 109.1 kB
  • After compression 33.8 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 122.3 kB or 78% of the original size.

CSS Optimization

-85%

Potential reduce by 35.9 kB

  • Original 42.5 kB
  • After minification 27.3 kB
  • After compression 6.6 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. Z-saw.co.jp needs all CSS files to be minified and compressed as it can save up to 35.9 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (24%)

Requests Now

71

After Optimization

54

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Z Saw. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

z-saw.co.jp

z-saw.co.jp

1183 ms

CFInstall.min.js

CFInstall.min.js

30 ms

swfobject_modified.js

swfobject_modified.js

773 ms

colorbox.css

colorbox.css

590 ms

jquery.min.js

jquery.min.js

72 ms

jquery.colorbox.js

jquery.colorbox.js

794 ms

jquery.bxslider.css

jquery.bxslider.css

399 ms

jquery.bxslider.js

jquery.bxslider.js

1213 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

613 ms

style1024.css

style1024.css

767 ms

stylefooter.css

stylefooter.css

611 ms

menu_styles.css

menu_styles.css

778 ms

menu_jquery.js

menu_jquery.js

788 ms

02_y_yoko_a.jpg

02_y_yoko_a.jpg

1288 ms

okada_logo05-a.png

okada_logo05-a.png

204 ms

okada_logo05-b.jpg

okada_logo05-b.jpg

205 ms

kinzoku_topimage.png

kinzoku_topimage.png

2111 ms

sentei_topimage.png

sentei_topimage.png

1536 ms

zetsaw_banner2.png

zetsaw_banner2.png

961 ms

reciprosaw_Video2.png

reciprosaw_Video2.png

950 ms

mokkopecker_Video2.png

mokkopecker_Video2.png

776 ms

recipro_banner.png

recipro_banner.png

603 ms

zetkun_search.jpg

zetkun_search.jpg

806 ms

mokuzai_link.png

mokuzai_link.png

1353 ms

pura_link.png

pura_link.png

1008 ms

kinzoku_link.png

kinzoku_link.png

1327 ms

katagi_link.png

katagi_link.png

1343 ms

namaki_link.png

namaki_link.png

1612 ms

siding_link.png

siding_link.png

1518 ms

zetkun_jump.jpg

zetkun_jump.jpg

1536 ms

zetkun_bye.jpg

zetkun_bye.jpg

1545 ms

02_y_seimitu_a.jpg

02_y_seimitu_a.jpg

1898 ms

02_y_usuki_a.jpg

02_y_usuki_a.jpg

1725 ms

02_y_naname_a.jpg

02_y_naname_a.jpg

1919 ms

02_y_tome_a.jpg

02_y_tome_a.jpg

1734 ms

02_y_hiki_a.jpg

02_y_hiki_a.jpg

1811 ms

02_y_tate_a.jpg

02_y_tate_a.jpg

1918 ms

02_y_waku_a.jpg

02_y_waku_a.jpg

2118 ms

02_y_diy_a.jpg

02_y_diy_a.jpg

2412 ms

02_y_pipe_aA.jpg

02_y_pipe_aA.jpg

2278 ms

02_y_mado_a.jpg

02_y_mado_a.jpg

2109 ms

kantan3d_LL.png

kantan3d_LL.png

2304 ms

Zetkun_icon164.png

Zetkun_icon164.png

2297 ms

mokuraku.png

mokuraku.png

2301 ms

mail_link_a.gif

mail_link_a.gif

2307 ms

waistern_banner.png

waistern_banner.png

2846 ms

komame_banner.png

komame_banner.png

2872 ms

hanbaitenkensaku_mini3.png

hanbaitenkensaku_mini3.png

2493 ms

tuuhan_link2.png

tuuhan_link2.png

2687 ms

widgets.js

widgets.js

83 ms

facebook_mini3.png

facebook_mini3.png

2451 ms

ga.js

ga.js

26 ms

__utm.gif

__utm.gif

42 ms

timeline.1b43d11859b7663a2225b885f87704a5.js

timeline.1b43d11859b7663a2225b885f87704a5.js

131 ms

like.php

like.php

241 ms

minipop_mini2.png

minipop_mini2.png

2618 ms

omisetouroku_mini2.png

omisetouroku_mini2.png

2491 ms

syndication

syndication

82 ms

555871209489829890

555871209489829890

108 ms

-1cfYrhulAt.js

-1cfYrhulAt.js

273 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

307 ms

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

33 ms

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

58 ms

616417537aba550c0071fc8c0fc60507_normal.png

616417537aba550c0071fc8c0fc60507_normal.png

147 ms

CasWR7kVAAAQhsN.jpg:small

CasWR7kVAAAQhsN.jpg:small

71 ms

catalog_mini2.png

catalog_mini2.png

2094 ms

jot

jot

23 ms

zetkun_jump.png

zetkun_jump.png

2110 ms

ZET-Tower-Camera.png

ZET-Tower-Camera.png

2273 ms

fcount.cgi

fcount.cgi

2266 ms

overlay.png

overlay.png

2061 ms

bx_loader.gif

bx_loader.gif

2035 ms

Accessibility Review

z-saw.co.jp accessibility score

91

Accessibility Issues

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

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

z-saw.co.jp best practices score

75

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

Page has valid source maps

SEO Factors

z-saw.co.jp SEO score

92

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 Z-saw.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 Z-saw.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

z-saw.co.jp

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