Tools & Wizards About Us
double-h.com screenshot

Report Summary

  • 93

    Performance

    Renders faster than
    92% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

double-h.com

Miscellay 7 / Double-H.com

Page Load Speed

3.6 sec in total

First Response

834 ms

Resources Loaded

2.6 sec

Page Rendered

112 ms

double-h.com screenshot

About Website

Welcome to double-h.com homepage info - get ready to check Double H best content for Japan right away, or after learning these important things about double-h.com

Visit double-h.com

Key Findings

We analyzed Double-h.com page load time and found that the first response time was 834 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

double-h.com performance score

93

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

85/100

25%

SI (Speed Index)

Value4.0 s

81/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

double-h.com

834 ms

urchin.js

20 ms

miscellany_base.css

565 ms

miscellany_top.css

605 ms

xrea_header.js

452 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 32% of them (6 requests) were addressed to the original Double-h.com, 32% (6 requests) were made to Cache1.value-domain.com and 16% (3 requests) were made to J1.ax.xrea.com. The less responsive or slowest element that took the longest time to load (834 ms) belongs to the original domain Double-h.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 58.8 kB (53%)

Content Size

110.9 kB

After Optimization

52.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Double-h.com main page is 110.9 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 87.3 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 2.9 kB

  • Original 4.4 kB
  • After minification 3.9 kB
  • After compression 1.4 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 518 B, which is 12% 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 2.9 kB or 67% of the original size.

Image Optimization

-54%

Potential reduce by 47.2 kB

  • Original 87.3 kB
  • After minification 40.1 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. Obviously, Double H needs image optimization as it can save up to 47.2 kB or 54% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-35%

Potential reduce by 5.0 kB

  • Original 14.2 kB
  • After minification 14.1 kB
  • After compression 9.2 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 5.0 kB or 35% of the original size.

CSS Optimization

-72%

Potential reduce by 3.7 kB

  • Original 5.1 kB
  • After minification 3.9 kB
  • After compression 1.4 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. Double-h.com needs all CSS files to be minified and compressed as it can save up to 3.7 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (17%)

Requests Now

18

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Double H. 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 JavaScripts and as a result speed up the page load time.

Network Requests Diagram

double-h.com

double-h.com

834 ms

urchin.js

urchin.js

20 ms

miscellany_base.css

miscellany_base.css

565 ms

miscellany_top.css

miscellany_top.css

605 ms

xrea_header.js

xrea_header.js

452 ms

l.j

l.j

452 ms

pngcount.fcg

pngcount.fcg

514 ms

__utm.gif

__utm.gif

10 ms

topmenu_about.gif

topmenu_about.gif

613 ms

topmenu_text.gif

topmenu_text.gif

573 ms

topmenu_photo.gif

topmenu_photo.gif

602 ms

xrea_header.css

xrea_header.css

151 ms

x.gif

x.gif

152 ms

l56.f

l56.f

552 ms

ts.gif

ts.gif

299 ms

banner_xrea_sp.gif

banner_xrea_sp.gif

151 ms

banner_background.png

banner_background.png

583 ms

searchbox.png

searchbox.png

597 ms

banner_button.png

banner_button.png

296 ms

Accessibility Review

double-h.com accessibility score

100

Accessibility Issues

Best Practices

double-h.com best practices score

67

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

SEO Factors

double-h.com SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    JA

  • Encoding

    UTF-8

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

double-h.com

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