Access sbc21.co.jp. SBC信越放送

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value80.5 s

0/100

25%

SI (Speed Index)

Value22.7 s

0/100

10%

TBT (Total Blocking Time)

Value3,940 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.346

32/100

15%

TTI (Time to Interactive)

Value42.8 s

0/100

10%

sbc21.co.jp

595 ms

sbc21.co.jp

1003 ms

gtm.js

64 ms

notosansjapanese.css

50 ms

owl.carousel.min.css

269 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 67% of them (86 requests) were addressed to the original Sbc21.co.jp, 7% (9 requests) were made to Fonts.gstatic.com and 4% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Sbc21.co.jp.

Content Size

3.2 MB

After Optimization

2.7 MB

In fact, the total size of Sbc21.co.jp main page is 3.2 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. Only a small number of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 33.6 kB

Original 45.4 kB
After minification 38.4 kB
After compression 11.8 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 7.0 kB, which is 15% 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 33.6 kB or 74% of the original size.

Image Optimization

-3%

Potential reduce by 72.3 kB

Original 2.2 MB
After minification 2.1 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. Sbc 21 images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 143.5 kB

Original 635.8 kB
After minification 611.0 kB
After compression 492.3 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 143.5 kB or 23% of the original size.

CSS Optimization

-68%

Potential reduce by 199.3 kB

Original 292.1 kB
After minification 229.0 kB
After compression 92.9 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. Sbc21.co.jp needs all CSS files to be minified and compressed as it can save up to 199.3 kB or 68% of the original size.

Requests Now

114

After Optimization

The browser has sent 114 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sbc 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 26 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Buttons do not have an accessible name

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

High

Page is blocked from indexing

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

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sbc21.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 Sbc21.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

sbc21.co.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

SBC信越放送

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

sbc21.co.jp

sbc21.co.jp

gtm.js

notosansjapanese.css

owl.carousel.min.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

sbc21.co.jp

sbc21.co.jp

gtm.js

notosansjapanese.css

owl.carousel.min.css

owl.theme.default.min.css

all.css

styles.css

set.css

top.css

gpt.js

jquery.min.js

owl.carousel.min.js

smoothScroll.js

all.js

jquery.cookie.js

moment.min.js

top_nowonair.js

6chan_top.js

modules.radio.js

home_news.js

js

pubads_impl.js

header_charactor.png

logo.png

ad_super_anotoki.jpg

spbtn1.png

spbtn2.png

slide_tv_zukudasetv2024.jpg

slide_tv_special240508.jpg

slide_tv_dohamarilif240508.jpg

slide_tv_news-wide202304.jpg

slider_rd_sakacyan-zukud2307B.jpg

slide_rd_Mix-plus2024.jpg

slide_kominkatsu.jpg

thumb_tv_champ_tabi.jpg

thumb_tv_comecome2405.jpg

thumb_tv_ekiden20240427.jpg

img_saiplus772.jpg

thumb_top_otoriyosetai240424.jpg

thumb_tv_SBC-iwakan202404.jpg

tbs_newsdig.png

W120_1.jpg