Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

oreiwa.com

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Page Load Speed

2.4 sec in total

First Response

800 ms

Resources Loaded

1.1 sec

Page Rendered

465 ms

oreiwa.com screenshot

About Website

Visit oreiwa.com now to see the best up-to-date Oreiwa content and also check out these interesting facts you probably never knew about oreiwa.com

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Visit oreiwa.com

Key Findings

We analyzed Oreiwa.com page load time and found that the first response time was 800 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

oreiwa.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

21/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value680 ms

44/100

30%

CLS (Cumulative Layout Shift)

Value0.167

71/100

15%

TTI (Time to Interactive)

Value5.1 s

75/100

10%

Network Requests Diagram

oreiwa.com

800 ms

wp-emoji-release.min.js

116 ms

style.css

119 ms

css

25 ms

genericons.css

122 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 68% of them (13 requests) were addressed to the original Oreiwa.com, 26% (5 requests) were made to Fonts.gstatic.com and 5% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (800 ms) belongs to the original domain Oreiwa.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 89.2 kB (9%)

Content Size

940.2 kB

After Optimization

851.0 kB

In fact, the total size of Oreiwa.com main page is 940.2 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. 30% of websites need less resources to load. Images take 831.5 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 12.8 kB

  • Original 18.0 kB
  • After minification 16.4 kB
  • After compression 5.2 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. 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 12.8 kB or 71% of the original size.

Image Optimization

-2%

Potential reduce by 16.5 kB

  • Original 831.5 kB
  • After minification 815.0 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. Oreiwa images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 13.3 kB

  • Original 19.0 kB
  • After minification 17.9 kB
  • After compression 5.7 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 13.3 kB or 70% of the original size.

CSS Optimization

-65%

Potential reduce by 46.6 kB

  • Original 71.8 kB
  • After minification 57.4 kB
  • After compression 25.2 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. Oreiwa.com needs all CSS files to be minified and compressed as it can save up to 46.6 kB or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (23%)

Requests Now

13

After Optimization

10

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oreiwa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

oreiwa.com accessibility score

53

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.

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

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

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

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

oreiwa.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

oreiwa.com SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    JA

  • Encoding

    UTF-8

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

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