Access nantoka-antenna.com. ナントカアンテナ

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value870 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value7.9 s

43/100

10%

nantoka-antenna.com

1556 ms

bootstrap.css

1118 ms

bootstrap-responsive.css

571 ms

sapp.css

400 ms

frontend.css

398 ms

Our browser made a total of 146 requests to load all elements on the main page. We found that 44% of them (64 requests) were addressed to the original Nantoka-antenna.com, 6% (9 requests) were made to Ums.adtechjp.com and 4% (6 requests) were made to Adm.shinobi.jp. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Nantoka-antenna.com.

Content Size

961.4 kB

After Optimization

447.3 kB

In fact, the total size of Nantoka-antenna.com main page is 961.4 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. 40% of websites need less resources to load. Images take 317.3 kB which makes up the majority of the site volume.

HTML Optimization

-94%

Potential reduce by 161.6 kB

Original 172.7 kB
After minification 89.5 kB
After compression 11.1 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 83.1 kB, which is 48% 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 161.6 kB or 94% of the original size.

Image Optimization

-6%

Potential reduce by 17.9 kB

Original 317.3 kB
After minification 299.3 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. Nantoka Antenna images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 175.8 kB

Original 285.7 kB
After minification 252.0 kB
After compression 109.9 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 175.8 kB or 62% of the original size.

CSS Optimization

-85%

Potential reduce by 158.8 kB

Original 185.8 kB
After minification 147.5 kB
After compression 27.0 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. Nantoka-antenna.com needs all CSS files to be minified and compressed as it can save up to 158.8 kB or 85% of the original size.

Requests Now

128

After Optimization

The browser has sent 128 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nantoka Antenna. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

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

High

<html> element does not have a valid value for its [lang] attribute.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

JA
Language Claimed

JP
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nantoka-antenna.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed language. Our system also found out that Nantoka-antenna.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.

Social Sharing Optimization

nantoka-antenna.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

ナントカアンテナ | アンテナ一覧

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

nantoka-antenna.com

bootstrap.css

bootstrap-responsive.css

sapp.css

frontend.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

nantoka-antenna.com

bootstrap.css

bootstrap-responsive.css

sapp.css

frontend.css

font-awesome.min.css

jquery-1.10.2.min.js

jquery-ui-1.9.2.custom.min-sortable.js

jquery.ui.touch-punch.min.js

bootstrap.js

portal.js

app.js

jquery.cookie.js

bbc82be5a80aa891fc9b0af48876aaa8

ga.js

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