Report Summary

  • 91

    Performance

    Renders faster than
    91% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

oiltest.cn

湖南奥巴夫检测技术有限公司|润滑油检测|液压油检测|变压器油检测|柴油检测|油品检测中心

Page Load Speed

31.8 sec in total

First Response

3.2 sec

Resources Loaded

28.3 sec

Page Rendered

343 ms

oiltest.cn screenshot

About Website

Visit oiltest.cn now to see the best up-to-date Oiltest content and also check out these interesting facts you probably never knew about oiltest.cn

本站提供的油品检测分析服务包括:润滑油检测、变压器油检测、柴油检测。检测服务覆盖以下区域:长沙,大连,营口,天津,秦皇岛,青岛,南通,太仓,张家港,南京,扬州,上海,宁波,厦门,泉州,漳州,惠州,深圳,东莞,广州,珠海,茂名,湛江,钦州,防城港,海南洋浦,海南八所。

Visit oiltest.cn

Key Findings

We analyzed Oiltest.cn page load time and found that the first response time was 3.2 sec and then it took 28.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

oiltest.cn performance score

91

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

oiltest.cn

3186 ms

style.css

3336 ms

jquery.min.js

6459 ms

styleswitch.js

1344 ms

rollpic.css

994 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 90% of them (72 requests) were addressed to the original Oiltest.cn, 3% (2 requests) were made to Hm.baidu.com and 1% (1 request) were made to S4.cnzz.com. The less responsive or slowest element that took the longest time to load (11.6 sec) belongs to the original domain Oiltest.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 223.3 kB (51%)

Content Size

441.7 kB

After Optimization

218.4 kB

In fact, the total size of Oiltest.cn main page is 441.7 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. 20% of websites need less resources to load. Javascripts take 175.8 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 54.3 kB

  • Original 65.8 kB
  • After minification 65.2 kB
  • After compression 11.5 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 54.3 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 3.4 kB

  • Original 152.2 kB
  • After minification 148.8 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. Oiltest images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 125.8 kB

  • Original 175.8 kB
  • After minification 161.9 kB
  • After compression 50.0 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 125.8 kB or 72% of the original size.

CSS Optimization

-83%

Potential reduce by 39.9 kB

  • Original 47.9 kB
  • After minification 40.3 kB
  • After compression 8.0 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. Oiltest.cn needs all CSS files to be minified and compressed as it can save up to 39.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (49%)

Requests Now

74

After Optimization

38

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oiltest. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

oiltest.cn accessibility score

91

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

Best Practices

oiltest.cn best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

oiltest.cn SEO score

69

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oiltest.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Oiltest.cn main page’s claimed encoding is gb2312. 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 Oiltest. 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: