Report Summary

  • 21

    Performance

    Renders faster than
    41% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    34% of websites

  • 96

    SEO

    Google-friendlier than
    93% of websites

sangan.jp

算願(さんがん) | 算数計算PDF問題ドリルの無料ダウンロード

Page Load Speed

3.9 sec in total

First Response

524 ms

Resources Loaded

3.1 sec

Page Rendered

304 ms

sangan.jp screenshot

About Website

Click here to check amazing Sangan content for Japan. Otherwise, check out these important facts you probably never knew about sangan.jp

PDF計算ドリル・算数ドリルの無料プリント教材ダウンロードサイト。小学校から中学校までの問題集。計算問題から文章題の算数プリントが大量にある。タブレット、iPhone、Androidスマホにも対応。

Visit sangan.jp

Key Findings

We analyzed Sangan.jp page load time and found that the first response time was 524 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

sangan.jp performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

17/100

25%

SI (Speed Index)

Value31.5 s

0/100

10%

TBT (Total Blocking Time)

Value73,550 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value91.2 s

0/100

10%

Network Requests Diagram

sangan.jp

524 ms

www.sangan.jp

1163 ms

main.css

316 ms

lay01.css

317 ms

adsbygoogle.js

7 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 14% of them (5 requests) were addressed to the original Sangan.jp, 22% (8 requests) were made to Googleads.g.doubleclick.net and 17% (6 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Sangan.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 101.4 kB (45%)

Content Size

225.0 kB

After Optimization

123.6 kB

In fact, the total size of Sangan.jp main page is 225.0 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. 50% of websites need less resources to load. Javascripts take 143.9 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 18.9 kB

  • Original 24.8 kB
  • After minification 24.0 kB
  • After compression 5.9 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 18.9 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 1.1 kB

  • Original 52.1 kB
  • After minification 51.0 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. Sangan images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 78.5 kB

  • Original 143.9 kB
  • After minification 142.0 kB
  • After compression 65.4 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 78.5 kB or 55% of the original size.

CSS Optimization

-70%

Potential reduce by 2.9 kB

  • Original 4.2 kB
  • After minification 3.2 kB
  • After compression 1.3 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. Sangan.jp needs all CSS files to be minified and compressed as it can save up to 2.9 kB or 70% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (38%)

Requests Now

32

After Optimization

20

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sangan. 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.

Accessibility Review

sangan.jp accessibility score

82

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best Practices

sangan.jp best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

sangan.jp SEO score

96

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

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 Sangan.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 Sangan.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

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