3.6 sec in total
625 ms
2.7 sec
310 ms
Visit irodori21.com now to see the best up-to-date Irodori 21 content for Japan and also check out these interesting facts you probably never knew about irodori21.com
『いろどり』は、富士市今泉の理系専門の塾です。「クラス」・「マンツーマン」・「家庭教師」と3つの授業スタイルからお子さんに合った学習方法をお選びいただけます。
Visit irodori21.comWe analyzed Irodori21.com page load time and found that the first response time was 625 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
irodori21.com performance score
name
value
score
weighting
Value3.1 s
47/100
10%
Value4.6 s
35/100
25%
Value7.2 s
30/100
10%
Value230 ms
87/100
30%
Value0.158
74/100
15%
Value8.2 s
40/100
10%
625 ms
186 ms
18 ms
319 ms
516 ms
Our browser made a total of 55 requests to load all elements on the main page. We found that 80% of them (44 requests) were addressed to the original Irodori21.com, 4% (2 requests) were made to X5.otoshiana.com and 4% (2 requests) were made to W3.org. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Irodori21.com.
Page size can be reduced by 177.8 kB (26%)
679.0 kB
501.1 kB
In fact, the total size of Irodori21.com main page is 679.0 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 461.0 kB which makes up the majority of the site volume.
Potential reduce by 10.1 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 1.8 kB, which is 13% 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 10.1 kB or 71% of the original size.
Potential reduce by 33.1 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. Irodori 21 images are well optimized though.
Potential reduce by 98.4 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 98.4 kB or 61% of the original size.
Potential reduce by 36.2 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. Irodori21.com needs all CSS files to be minified and compressed as it can save up to 36.2 kB or 84% of the original size.
Number of requests can be reduced by 26 (50%)
52
26
The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Irodori 21. 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 from 8 to 1 for CSS and as a result speed up the page load time.
irodori21.com
625 ms
import-web.css
186 ms
jsapi
18 ms
rollover.js
319 ms
jquery-1.7.2.min.js
516 ms
lightbox.js
334 ms
lightbox.css
344 ms
mt.js
366 ms
04581660j
581 ms
common.css
176 ms
lec-navy.css
313 ms
clearfix.css
325 ms
print.css
335 ms
advanced.css
346 ms
mt5.css
368 ms
jquery.min.js
28 ms
bg-sidebar.gif
172 ms
valid-xhtml10.gif
61 ms
wcag1A.gif
60 ms
top.png
319 ms
bg-contents-title03.gif
186 ms
class1.png
186 ms
clickable.gif
163 ms
class2-manin.png
338 ms
class4-manin.png
473 ms
class3.png
333 ms
class5.png
369 ms
bg-sidebar.gif
353 ms
png.png
474 ms
side1.png
503 ms
side2.png
506 ms
side3.png
528 ms
side4.png
558 ms
side-contents-top.gif
630 ms
btn-mail01.gif
634 ms
pen.gif
669 ms
blog.png
992 ms
banner-douga.jpg
867 ms
btn-pagetop_off.png
746 ms
address-image.jpg
804 ms
icon-access.png
794 ms
icon-arrow_off.png
847 ms
bg-gnav.gif
931 ms
irodori_top.jpg
1261 ms
irodori3.jpg
1447 ms
Zen
382 ms
encount
353 ms
1.13.17
310 ms
icon-arrow.gif
324 ms
menu-navi.png
545 ms
ga.js
16 ms
loading.gif
375 ms
close.png
421 ms
__utm.gif
14 ms
sync
177 ms
irodori21.com 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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
irodori21.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
irodori21.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
Tap targets are not sized appropriately
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Irodori21.com 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 Irodori21.com 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.
irodori21.com
Open Graph description is not detected on the main page of Irodori 21. 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: