6.1 sec in total
1.2 sec
4.5 sec
411 ms
Click here to check amazing Isaac Gaikokugo School content for Japan. Otherwise, check out these important facts you probably never knew about isaac-gaikokugo-school.jp
アイザック外国語スクールは30カ国語に対応しています。オンラインレッスンでも受講できます!厳選された日本語のできる講師による担任制で短期上達。無料体験レッスンも受付中です。
Visit isaac-gaikokugo-school.jpWe analyzed Isaac-gaikokugo-school.jp page load time and found that the first response time was 1.2 sec and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
isaac-gaikokugo-school.jp performance score
name
value
score
weighting
Value4.9 s
10/100
10%
Value10.7 s
0/100
25%
Value10.3 s
8/100
10%
Value480 ms
60/100
30%
Value0.393
26/100
15%
Value9.3 s
32/100
10%
1173 ms
457 ms
463 ms
324 ms
327 ms
Our browser made a total of 114 requests to load all elements on the main page. We found that 55% of them (63 requests) were addressed to the original Isaac-gaikokugo-school.jp, 9% (10 requests) were made to Static.xx.fbcdn.net and 5% (6 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Isaac-gaikokugo-school.jp.
Page size can be reduced by 517.2 kB (34%)
1.5 MB
1.0 MB
In fact, the total size of Isaac-gaikokugo-school.jp main page is 1.5 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. 80% 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 788.1 kB which makes up the majority of the site volume.
Potential reduce by 41.2 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 41.2 kB or 78% of the original size.
Potential reduce by 37.0 kB
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. Isaac Gaikokugo School images are well optimized though.
Potential reduce by 218.0 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 218.0 kB or 52% of the original size.
Potential reduce by 220.9 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. Isaac-gaikokugo-school.jp needs all CSS files to be minified and compressed as it can save up to 220.9 kB or 82% of the original size.
Number of requests can be reduced by 50 (46%)
109
59
The browser has sent 109 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isaac Gaikokugo 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 31 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
isaac-gaikokugo-school.jp
1173 ms
common10.css
457 ms
commonRight10.css
463 ms
commonTops5.css
324 ms
base.css
327 ms
top3.css
371 ms
common.js
491 ms
add1.js
494 ms
frame.js
556 ms
top2.js
606 ms
AC_RunActiveContent.js
616 ms
swfobject.js
275 ms
mv.js
273 ms
element.js
51 ms
s_retargeting.js
437 ms
pcHeaderImg20140526094918.gif
154 ms
menuBg.gif
215 ms
hdmenu1Off.gif
167 ms
hdmenu2Off.gif
155 ms
hdmenu3Off.gif
158 ms
menuBg.gif
172 ms
01Off.gif
369 ms
02Off.gif
369 ms
03Off.gif
368 ms
04Off.gif
369 ms
05Off.gif
369 ms
pcTopImg120140526094918.jpg
775 ms
1On.jpg
664 ms
2Off.jpg
664 ms
3Off.jpg
662 ms
4Off.jpg
661 ms
5Off.jpg
661 ms
subtitle.gif
792 ms
worldmap3.png
1124 ms
point.gif
807 ms
pcCampaignImgOff20140526094918.gif
790 ms
pcFreelessonImgOff20140526094918.png
1099 ms
pcSel30langImg20140526094918.png
992 ms
bBack.gif
991 ms
b01.png
991 ms
b02.png
992 ms
b03.png
1094 ms
b04.png
1093 ms
b06.png
1146 ms
whatsNew.png
1125 ms
maru.gif
1242 ms
mediainfo.png
1243 ms
addrtitle.png
1250 ms
arrow4.png
1214 ms
inquiry.gif
1234 ms
fgmJNTZPOao
109 ms
7IVuscxV8cw
204 ms
pamphlet.gif
1240 ms
translateelement.css
87 ms
main.js
124 ms
blog_title.png
1252 ms
blog_shibuyaOff.png
1252 ms
blog_nagoyaOff.png
1258 ms
blog_osakaOff.png
1290 ms
business_course.png
1291 ms
www-embed-player-vflfNyN_r.css
57 ms
www-embed-player.js
99 ms
base.js
185 ms
widgets.js
163 ms
kaigai_funindou.png
1305 ms
analytics.js
108 ms
blade_track_jp.js
586 ms
element_main.js
297 ms
tag.js
83 ms
likebox.php
549 ms
collect
272 ms
honyaku.gif
1187 ms
01.gif
1189 ms
QR.jpg
1199 ms
0.jpg
1567 ms
1.jpg
1578 ms
Lrq7Jibxdtv2QOPyDSqncpDfQFNs3PE6SoUrUNh2GTU.js
229 ms
ad_status.js
237 ms
button.0308b81ff1714e446f674b5b9793f2cd.js
232 ms
tag
115 ms
tag
134 ms
translate_24dp.png
134 ms
l
72 ms
collect
137 ms
cleardot.gif
121 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
106 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
109 ms
2.jpg
1234 ms
3.jpg
1192 ms
te_ctrl3.gif
33 ms
follow_button.b9740740e0bcf9b0657c5b11bd4388da.ja.html
55 ms
cookie_enabled_get.html
345 ms
hDvwL1_H7g-.css
62 ms
56WNbrUYLbL.css
71 ms
q68gy-v_YMF.js
74 ms
FJmpeSpHpjS.js
73 ms
0wM5s1Khldu.js
67 ms
1bNoFZUdlYZ.js
66 ms
299786_387063941392902_2113820978_n.jpg
48 ms
13079_387059128060050_229734263_n.jpg
15 ms
10513338_236315963379900_3054474266061266278_n.jpg
14 ms
247694_934823609971996_5067846566977165132_n.jpg
19 ms
76219_499856283359013_779154438_n.jpg
16 ms
11245493_1586055278308660_1254623750689009554_n.jpg
81 ms
wL6VQj7Ab77.png
11 ms
s7jcwEQH7Sx.png
11 ms
jot
92 ms
I6-MnjEovm5.js
11 ms
pQrUxxo5oQp.js
5 ms
bl_track.cgi
353 ms
ya.js
386 ms
banner_b.jpg
152 ms
pb.js
881 ms
362 ms
isaac-gaikokugo-school.jp accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
isaac-gaikokugo-school.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
isaac-gaikokugo-school.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
Document uses legible font sizes
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isaac-gaikokugo-school.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 Isaac-gaikokugo-school.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.
isaac-gaikokugo-school.jp
Open Graph description is not detected on the main page of Isaac Gaikokugo 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: