Tools & Wizards About Us

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

erc-c.jp

ＥＲＣ：　イーアールシー有限会社

Page Load Speed

3.7 sec in total

First Response

540 ms

Resources Loaded

3.1 sec

Page Rendered

71 ms

About Website

Click here to check amazing Erc C content. Otherwise, check out these important facts you probably never knew about erc-c.jp

ＥＲＣは幅広い技術情報のネットワークで最適なソリューションを提案します。パソコンで専用計測器の機能を実現するアナログ信号解析ツール　バーチャル計測器や小型、軽量、各種コントロール機能付光学26倍、18倍、10倍ズーム内臓インテリジェントカメラ及び３次元加速度センサー・広帯域磁気センサーをご提供します。

Visit erc-c.jp

Key Findings

We analyzed Erc-c.jp page load time and found that the first response time was 540 ms and then it took 3.2 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

erc-c.jp performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.3 s

100/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.3 s

100/100

10%

Network Requests Diagram

erc-c.jp

540 ms

erc-c.jp

721 ms

erc.css

182 ms

Count.exe

577 ms

spacer.gif

361 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 91% of them (21 requests) were addressed to the original Erc-c.jp, 4% (1 request) were made to Willnet.ne.jp and 4% (1 request) were made to Willnet.ad.jp. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Erc-c.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 5.3 kB (34%)

Content Size

15.5 kB

After Optimization

10.2 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Erc-c.jp main page is 15.5 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. Only 5% of websites need less resources to load. HTML takes 7.8 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 5.2 kB

  • Original 7.8 kB
  • After minification 7.2 kB
  • After compression 2.6 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 5.2 kB or 66% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 7.1 kB
  • After minification 7.1 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. Erc C images are well optimized though.

CSS Optimization

-13%

Potential reduce by 77 B

  • Original 583 B
  • After minification 583 B
  • After compression 506 B

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. Erc-c.jp needs all CSS files to be minified and compressed as it can save up to 77 B or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (74%)

Requests Now

19

After Optimization

5

  • Images
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Erc C. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

erc-c.jp accessibility score

58

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

Best Practices

erc-c.jp best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

erc-c.jp SEO score

67

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Erc-c.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Erc-c.jp main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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