Tools & Wizards About Us
china-oceanus.com screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

china-oceanus.com

Gas detector - multi type gas detector, gas analyzer, air quality monitor system manufacturer from Oceanus

Page Load Speed

22.6 sec in total

First Response

1.3 sec

Resources Loaded

21 sec

Page Rendered

339 ms

china-oceanus.com screenshot

About Website

Welcome to china-oceanus.com homepage info - get ready to check China Oceanus best content right away, or after learning these important things about china-oceanus.com

Oceanus is professional of the Gad detector and Air quality monitor system solutions, and is committed to provide more added service and the Purchasing center service.

Visit china-oceanus.com

Key Findings

We analyzed China-oceanus.com page load time and found that the first response time was 1.3 sec and then it took 21.3 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

china-oceanus.com performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value12.3 s

3/100

10%

TBT (Total Blocking Time)

Value190 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.117

85/100

15%

TTI (Time to Interactive)

Value17.0 s

4/100

10%

Network Requests Diagram

china-oceanus.com

1301 ms

style.css

636 ms

common.css

859 ms

jquery.min.js

1488 ms

functions.js

642 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 82% of them (93 requests) were addressed to the original China-oceanus.com, 12% (13 requests) were made to Bdimg.share.baidu.com and 3% (3 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (14.7 sec) belongs to the original domain China-oceanus.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.6 MB (25%)

Content Size

6.3 MB

After Optimization

4.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of China-oceanus.com main page is 6.3 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. 70% of websites need less resources to load. Images take 6.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 33.2 kB

  • Original 40.8 kB
  • After minification 40.1 kB
  • After compression 7.6 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 33.2 kB or 81% of the original size.

Image Optimization

-25%

Potential reduce by 1.6 MB

  • Original 6.1 MB
  • After minification 4.6 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. Obviously, China Oceanus needs image optimization as it can save up to 1.6 MB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 12.0 kB

  • Original 120.4 kB
  • After minification 120.1 kB
  • After compression 108.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-27%

Potential reduce by 1.8 kB

  • Original 6.4 kB
  • After minification 6.4 kB
  • After compression 4.6 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. China-oceanus.com needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (23%)

Requests Now

111

After Optimization

86

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 111 CSS, Javascripts, AJAX and image requests in order to completely render the main page of China Oceanus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

china-oceanus.com

china-oceanus.com

1301 ms

style.css

style.css

636 ms

common.css

common.css

859 ms

jquery.min.js

jquery.min.js

1488 ms

functions.js

functions.js

642 ms

FocusSlide.js

FocusSlide.js

641 ms

ScrollPic.js

ScrollPic.js

830 ms

iepngfix_tilebg.js

iepngfix_tilebg.js

853 ms

h.js

h.js

441 ms

index_bg.jpg

index_bg.jpg

835 ms

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868 ms

search_bg.gif

search_bg.gif

228 ms

nav_bg.png

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228 ms

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429 ms

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1685 ms

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1474 ms

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862 ms

left_bg.gif

left_bg.gif

640 ms

topic_bg1.gif

topic_bg1.gif

851 ms

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1045 ms

LinkedIn.png

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1061 ms

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1072 ms

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1076 ms

skype.png

skype.png

1254 ms

box_bg1.jpg

box_bg1.jpg

1271 ms

block_bg1.gif

block_bg1.gif

1282 ms

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1518 ms

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2333 ms

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1535 ms

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1902 ms

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1955 ms

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1780 ms

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1930 ms

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2003 ms

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3874 ms

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4138 ms

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3775 ms

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2774 ms

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2598 ms

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2632 ms

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3060 ms

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2879 ms

analytics.js

analytics.js

24 ms

hm.js

hm.js

640 ms

share.js

share.js

753 ms

collect

collect

12 ms

collect

collect

29 ms

js

js

65 ms

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3493 ms

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2883 ms

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3527 ms

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2924 ms

hm.js

hm.js

1447 ms

share_api.js

share_api.js

285 ms

share_view.js

share_view.js

506 ms

select_api.js

select_api.js

464 ms

select_view.js

select_view.js

562 ms

image_api.js

image_api.js

506 ms

image_view.js

image_view.js

501 ms

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3665 ms

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3543 ms

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3711 ms

tangram.js

tangram.js

477 ms

api_base.js

api_base.js

427 ms

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3754 ms

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5364 ms

view_base.js

view_base.js

294 ms

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3925 ms

partners.js

partners.js

258 ms

share_style1_16.css

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343 ms

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hm.gif

hm.gif

313 ms

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4233 ms

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4769 ms

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4580 ms

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4977 ms

logger.js

logger.js

257 ms

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4103 ms

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4865 ms

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4525 ms

pro_arrow_right.gif

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4139 ms

nav_bg.png

nav_bg.png

3967 ms

sprite.png

sprite.png

4170 ms

Accessibility Review

china-oceanus.com accessibility score

57

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

High

Form elements do not have associated labels

Best Practices

china-oceanus.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

china-oceanus.com SEO score

58

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

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise China-oceanus.com 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 China-oceanus.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

china-oceanus.com

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