Analyze 金属熱処理講習は初心者から管理者養成までカバーする金属熱処理スクールへ|愛知県 安城市

金属熱処理スクールは、金属熱処理を学びたい方へ、レベルに応じた教育カリキュラムを各種豊富にご用意しています。 実際の熱処理現場プロによる、現場経験を活かした少人数制のきめ細やかな指導を行ない、また、仕事と講習を両立できるように、夜間や土曜日も開講しています。金属熱処理の知識が身に付く万全の体制で受講生の皆様をトータルサポートしています。

Page load speed analysis

  • 49/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    1.3 sec

  • Resources loaded

    4.3 sec

  • Page rendered

    332 ms

  • Total page load time

    5.9 sec

Click here to check amazing Metalheat School content. Otherwise, check out these important facts you probably never knew about

We analyzed page load time and found that the first response time was 1.3 sec and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Page optimization

  • HTML 26.7 kB
    Images 984.3 kB
    Javascripts 338.7 kB
    CSS 26.6 kB

    In fact, the total size of main page is 1.4 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. 55% of websites need less resources to load. Images take 984.3 kB which makes up the majority of the site volume.

    • Original 26.7 kB
    • After minification 25.1 kB
    • After compression 6.7 kB

    HTML optimization

    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 20.1 kB or 75% of the original size.

    • Original 984.3 kB
    • After optimization 658.0 kB

    Image optimization

    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, Metalheat School needs image optimization as it can save up to 326.3 kB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 338.7 kB
    • After minification 333.7 kB
    • After compression 111.2 kB

    JavaScript optimization

    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 227.5 kB or 67% of the original size.

    • Original 26.6 kB
    • After minification 20.8 kB
    • After compression 4.8 kB

    CSS optimization

    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. needs all CSS files to be minified and compressed as it can save up to 21.9 kB or 82% of the original size.

Network requests diagram

  • common.css
  • jquery.min.js
  • school_base.js
  • jquery.smoothScroll.js
  • jquery.easing.min.js
  • analytics.js
  • img01.jpg
  • img02.jpg
  • img03.jpg
  • title.png
  • top_back.jpg
  • selection_back.jpg
  • title_01.jpg
  • icon_01.jpg
  • icon_02.jpg
  • icon_03.jpg
  • title_02.jpg
  • icon_r_04.jpg
  • icon_r_03.jpg
  • page_top.png
  • rogo.png
  • bnr_01.jpg
  • bnr_02.jpg
  • bnr_03.jpg
  • bnr_04.jpg
  • bnr_05.jpg
  • bnr_06.jpg
  • btn_01.jpg
  • btn_02.jpg
  • btn_03.jpg
  • btn_04.jpg
  • btn_05.jpg
  • btn_06.jpg
  • bnr_01.jpg
  • head_nav_01.jpg
  • cse.js
  • collect
  • head_left.png
  • head_h1.png
  • head_h2.png
  • head_h3.png
  • cse.js
  • jsapi
  • head_nav_03_on.jpg
  • head_nav_04.jpg
  • scroll.js
  • default+ja.css
  • default.css
  • default+ja.I.js
  • default.css
  • head_sid.jpg
  • async-ads.js
  • google_custom_search_watermark.gif
  • small-logo.png
  • search_box_icon.png
  • clear.png
  • nav_logo114.png

Our browser made a total of 58 requests to load all elements on the main page. We found that 72% of them (42 requests) were addressed to the original, 17% (10 requests) were made to and 5% (3 requests) were made to The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain

Additional info on


The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Metalheat School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.









Possible request optimization











Normal result

IP address uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 600
NS 600
NS 600

600 Mname:
Serial: 2015100004
Refresh: 4200
Retry: 300
Expire: 3600000
Minimum-ttl: 600
MX 600 Pri: 10

Language and encoding

Normal result


JA ja language flag


N/A  language flag





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

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

The server of is located in Japan, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance can potentially affect the page load time.

Good result

Poor result

Social Sharing Optimization

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

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