Tools & Wizards About Us

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

sekiyu-gakkai.or.jp

公益社団法人石油学会　The Japan Petroleum Institute

Page Load Speed

3.3 sec in total

First Response

581 ms

Resources Loaded

2.6 sec

Page Rendered

80 ms

About Website

Visit sekiyu-gakkai.or.jp now to see the best up-to-date Sekiyu Gakkai content for Japan and also check out these interesting facts you probably never knew about sekiyu-gakkai.or.jp

公益社団法人石油学会　The Japan Petroleum Institute

Visit sekiyu-gakkai.or.jp

Key Findings

We analyzed Sekiyu-gakkai.or.jp page load time and found that the first response time was 581 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

sekiyu-gakkai.or.jp performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

sekiyu-gakkai.or.jp

581 ms

sekiyu-gakkai.or.jp

756 ms

index.css

185 ms

index.js

370 ms

index_bg.gif

185 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 95% of them (19 requests) were addressed to the original Sekiyu-gakkai.or.jp, 5% (1 request) were made to Wwwsoc.nii.ac.jp. The less responsive or slowest element that took the longest time to load (756 ms) belongs to the original domain Sekiyu-gakkai.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.4 kB (6%)

Content Size

72.9 kB

After Optimization

68.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sekiyu-gakkai.or.jp main page is 72.9 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 10% of websites need less resources to load. Images take 66.6 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 3.4 kB

  • Original 4.6 kB
  • After minification 4.4 kB
  • After compression 1.3 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 3.4 kB or 73% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 66.6 kB
  • After minification 66.6 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. Sekiyu Gakkai images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 597 B

  • Original 1.0 kB
  • After minification 946 B
  • After compression 449 B

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 597 B or 57% of the original size.

CSS Optimization

-62%

Potential reduce by 386 B

  • Original 622 B
  • After minification 383 B
  • After compression 236 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. Sekiyu-gakkai.or.jp needs all CSS files to be minified and compressed as it can save up to 386 B or 62% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

17

After Optimization

17

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sekiyu Gakkai. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

sekiyu-gakkai.or.jp accessibility score

93

Accessibility Issues

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

Best Practices

sekiyu-gakkai.or.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

sekiyu-gakkai.or.jp SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sekiyu-gakkai.or.jp can be misinterpreted by Google and other search engines. Our service has detected that English 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 Sekiyu-gakkai.or.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 Sekiyu Gakkai. 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: