Report Summary

  • 38

    Performance

    Renders faster than
    58% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

1221.co.jp

合宿免許のことなら-アバンセ運転免許センター

Page Load Speed

13.1 sec in total

First Response

1 sec

Resources Loaded

11.8 sec

Page Rendered

350 ms

1221.co.jp screenshot

About Website

Click here to check amazing 1221 content for Japan. Otherwise, check out these important facts you probably never knew about 1221.co.jp

合宿免許で免許を取りたいならアバンセまでご連絡ください。日本全国の教習所情報をご用意しております。お客様の要望に合わせた毎月のおすすめプランなども用意しております。短期間で免許取得可能なコースや、料金サービスなどお得な情報もございます。

Visit 1221.co.jp

Key Findings

We analyzed 1221.co.jp page load time and found that the first response time was 1 sec and then it took 12.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

1221.co.jp performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value12.5 s

0/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value160 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value1.251

1/100

15%

TTI (Time to Interactive)

Value9.8 s

27/100

10%

Network Requests Diagram

1221.co.jp

1017 ms

import.css

337 ms

datepicker.css

343 ms

import.js

361 ms

ui.custom.min.js

1268 ms

Our browser made a total of 146 requests to load all elements on the main page. We found that 94% of them (137 requests) were addressed to the original 1221.co.jp, 1% (2 requests) were made to Apis.google.com and 1% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain 1221.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 436.8 kB (18%)

Content Size

2.4 MB

After Optimization

1.9 MB

In fact, the total size of 1221.co.jp main page is 2.4 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. 45% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 61.6 kB

  • Original 75.8 kB
  • After minification 58.7 kB
  • After compression 14.2 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. This page needs HTML code to be minified as it can gain 17.0 kB, which is 22% 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 61.6 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 90.8 kB

  • Original 1.9 MB
  • After minification 1.8 MB

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. 1221 images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 247.3 kB

  • Original 348.0 kB
  • After minification 339.3 kB
  • After compression 100.7 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 247.3 kB or 71% of the original size.

CSS Optimization

-86%

Potential reduce by 37.0 kB

  • Original 43.1 kB
  • After minification 33.1 kB
  • After compression 6.1 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. 1221.co.jp needs all CSS files to be minified and compressed as it can save up to 37.0 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 54 (37%)

Requests Now

145

After Optimization

91

The browser has sent 145 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 1221. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

1221.co.jp accessibility score

51

Accessibility Issues

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

1221.co.jp best practices score

58

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

1221.co.jp SEO score

83

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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

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 1221.co.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 1221.co.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 1221. 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: