Analyze 個別指導と担任制のパソコンスクールならISAパソコン教室

パソコン/オンライン授業を個別指導のパソコンスクール/パソコン教室ISA オンラインパソコンスクール、個別指導のパソコン教室ISA。自宅でも、スクールへ通学でもパソコンスキルアップ を徹底サポート。全国13教室どこも駅から5分以内で通学に便利。まずは資料請求・無料体験から

Page load speed analysis

  • 49/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    721 ms

  • Resources loaded

    7.3 sec

  • Page rendered

    636 ms

  • Total page load time

    8.7 sec

Welcome to homepage info - get ready to check Isa School best content for Japan right away, or after learning these important things about

We analyzed page load time and found that the first response time was 721 ms and then it took 7.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Page optimization

  • HTML 63.9 kB
    Images 1.3 MB
    Javascripts 164.7 kB
    CSS 59.8 kB

    In fact, the total size of main page is 1.6 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.3 MB which makes up the majority of the site volume.

    • Original 63.9 kB
    • After minification 57.0 kB
    • After compression 17.2 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. This page needs HTML code to be minified as it can gain 6.9 kB, which is 11% 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 46.7 kB or 73% of the original size.

    • Original 1.3 MB
    • After optimization 1.2 MB

    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. Isa School images are well optimized though.

    • Original 164.7 kB
    • After minification 162.6 kB
    • After compression 66.9 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 97.8 kB or 59% of the original size.

    • Original 59.8 kB
    • After minification 48.2 kB
    • After compression 11.2 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 48.6 kB or 81% of the original size.

Network requests diagram

  • common.css
  • top.css
  • gurchin.js
  • ga.js
  • __utm.gif
  • isa_logo.jpg
  • head_btn_free_lesson.jpg
  • head_btn_request.jpg
  • head_btn_pamphleta.jpg
  • head_btn_school_list.jpg
  • mainimage.jpg
  • mainimage1.jpg
  • mainimage2.jpg
  • mainimage3.jpg
  • mainimage4.jpg
  • mainimage5.jpg
  • support_img.jpg
  • support_program_btn.jpg
  • support_result.jpg
  • support_story.jpg
  • support_seminar.jpg
  • support_success.png
  • adobe.jpg
  • adobe_package.jpg
  • adobe_schiool_partner.jpg
  • microsoft.jpg
  • ms_party_img.jpg
  • side_nav_title.jpg
  • side_school_title.jpg
  • side_support_title.png
  • bnr_campaign_ms_2015.jpg
  • bnr_progrum_support.png
  • bnr_hitodukuri.png
  • bnr_gakusei.png
  • bnr_adobe.png
  • bnr_adobe_cc.png
  • bnr_compe.png
  • bnr_scjool_emp.png
  • bn_isaxtech_lp90.png
  • bnr_side_orico.png
  • notosansjapanese.css
  • twitter.png
  • jquery.min.js
  • conversion.js
  • s_retargeting.js
  • jquery.hightline.js
  • sdk.js
  • ticker.js
  • NotoSansJP-Regular.woff
  • NotoSansJP-Medium.woff
  • NotoSansJP-DemiLight.woff
  • NotoSansJP-Light.woff
  • NotoSansJP-Thin.woff
  • NotoSansJP-Bold.woff
  • NotoSansJP-Black.woff
  • jquery.bxslider.min.js
  • jTabs.js
  • widgets.js
  • xd_arbiter.php
  • xd_arbiter.php
  • top.config.js
  • google.png
  • facebook.png
  • hatena.png
  • line.png
  • school_select_img.jpg
  • footer_contact_tel.jpg
  • footer_fb_btn.png
  • footer_tw_btn.png
  • footer_logo.jpg
  • bnr_isa_news.png
  • bnr_isa_overveiw.png
  • bnr_Job_offer.png
  • bnr_corp_lesson.png
  • bnr_isa_recruit.png
  • bnr_ms_partner.png
  • bnr_prometric.png
  • bnr_lpi.png
  • bnr_vba.png
  • bnr_oracle.png
  • bg_ticker.png
  • global_btn_bg.png
  • head_contact_bg.jpg
  • select_title_bg.png
  • select_btn_bg2.jpg
  • list_bg_tit01.jpg
  • list_ico_tit.png
  • list_bg_tit02.jpg
  • list_bg_slct.jpg
  • list_ico_slct.png
  • top_img_bg.jpg
  • top_contents_title_bg.png
  • top_tab_bg.png
  • result_ic.jpg
  • side_nav_bg.jpg
  • side_school_ic.png
  • school_select_title_bg.png
  • seminar_index.html
  • school_select_marker_bg.gif
  • school_select_faq_bg.gif
  • like.php
  • school_select_img_bg.jpg
  • vpc6VNjRPXV.js
  • LVx-xkvaJ0b.png
  • school_select_q_ic.png
  • school_select_a_ic.png
  • footer_nav_bg.png
  • footer_bg_ic.png
  • footer_line_y_bg.png
  • bx_loader.gif
  • controls.png
  • isalogo.gif
  • seminar_mainimage.jpg
  • mg_9791.jpg
  • _MG_6486.jpg
  • 1day_hara.JPG
  • net_seminar_img01.jpg
  • btn_mousikomi.gif
  • cr_1029photo.jpg
  • cr_1105photo.JPG
  • cr_1112photo.JPG
  • bt_footerlogo.gif

Our browser made a total of 127 requests to load all elements on the main page. We found that 82% of them (104 requests) were addressed to the original, 6% (7 requests) were made to and 2% (2 requests) were made to The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain

Additional info on


The browser has sent 108 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isa 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 13 to 1 for JavaScripts and as a result speed up the page load time.











Possible request optimization













Normal result


As for redirects, our browser was forwarded to before it reached this domain.

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 300
NS 7200
NS 7200

7200 Mname: NS41.WORLDNIC.COM
Rname: namehost.WORLDNIC.COM
Serial: 120091806
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum-ttl: 3600
MX 7200 Pri: 10

Language and encoding

Good result


JA ja language flag


JA ja 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 it matches the claimed language. 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.

Poor result

Visitor World Map

Country of origin for 100% of all visits is Japan. It’s good for that their server is also located in Japan, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Good result

Social Sharing Optimization

Open Graph data is detected on the main page of Isa School. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

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