Tools & Wizards About Us
cosl.com.sg screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 33

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

cosl.com.sg

中海油田服务股份有限公司

Page Load Speed

3.3 sec in total

First Response

702 ms

Resources Loaded

2.4 sec

Page Rendered

184 ms

cosl.com.sg screenshot

About Website

Welcome to cosl.com.sg homepage info - get ready to check Cosl best content for India right away, or after learning these important things about cosl.com.sg

中海油田服务股份有限公司

Visit cosl.com.sg

Key Findings

We analyzed Cosl.com.sg page load time and found that the first response time was 702 ms and then it took 2.6 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

cosl.com.sg performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value10.2 s

8/100

10%

TBT (Total Blocking Time)

Value180 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.0 s

42/100

10%

Network Requests Diagram

cosl.com.sg

702 ms

index.html

369 ms

jquery.js

5 ms

urite.min.js

14 ms

infotag.css

15 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Cosl.com.sg, 95% (54 requests) were made to Cosl.com.cn and 2% (1 request) were made to . The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Hm.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 233.8 kB (3%)

Content Size

7.3 MB

After Optimization

7.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cosl.com.sg main page is 7.3 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 7.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 41.9 kB

  • Original 51.7 kB
  • After minification 47.2 kB
  • After compression 9.8 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 41.9 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 142.9 kB

  • Original 7.2 MB
  • After minification 7.0 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. Cosl images are well optimized though.

JavaScript Optimization

-86%

Potential reduce by 37.8 kB

  • Original 44.0 kB
  • After minification 40.4 kB
  • After compression 6.3 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 37.8 kB or 86% of the original size.

CSS Optimization

-78%

Potential reduce by 11.2 kB

  • Original 14.5 kB
  • After minification 11.7 kB
  • After compression 3.3 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. Cosl.com.sg needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (13%)

Requests Now

53

After Optimization

46

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cosl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

cosl.com.sg

cosl.com.sg

702 ms

index.html

index.html

369 ms

jquery.js

jquery.js

5 ms

urite.min.js

urite.min.js

14 ms

infotag.css

infotag.css

15 ms

css.css

css.css

16 ms

1506161715599122.js

1506161715599122.js

15 ms

1506162034421996.js

1506162034421996.js

12 ms

jquery.tabs.js

jquery.tabs.js

14 ms

js.js

js.js

15 ms

,_data_uri_useable=1

,_data_uri_useable=1

2 ms

index.html

index.html

16 ms

index.html

index.html

15 ms

hm.js

hm.js

1302 ms

1505111127013153000.jpg

1505111127013153000.jpg

532 ms

1506161124244521250.jpg

1506161124244521250.jpg

15 ms

1506161124248445472.jpg

1506161124248445472.jpg

13 ms

1506161124233555306.jpg

1506161124233555306.jpg

13 ms

1503040939336826561.jpg

1503040939336826561.jpg

15 ms

1503040939322791374.jpg

1503040939322791374.jpg

25 ms

1503040939333882485.jpg

1503040939333882485.jpg

15 ms

1503040939331059787.jpg

1503040939331059787.jpg

20 ms

1503040939327328414.jpg

1503040939327328414.jpg

16 ms

1506031409375475931.jpg

1506031409375475931.jpg

17 ms

1506031410395899342.jpg

1506031410395899342.jpg

18 ms

1503031403057151381.jpg

1503031403057151381.jpg

18 ms

left_qh.jpg

left_qh.jpg

18 ms

1506031418383412026.jpg

1506031418383412026.jpg

23 ms

1506091132252479973.jpg

1506091132252479973.jpg

23 ms

1706301955488965688.jpg

1706301955488965688.jpg

22 ms

1706301955491619677.jpg

1706301955491619677.jpg

27 ms

1505101925491579186.jpg

1505101925491579186.jpg

27 ms

1506031419435612202.jpg

1506031419435612202.jpg

32 ms

1506031423591358002.jpg

1506031423591358002.jpg

33 ms

1506031420229556855.jpg

1506031420229556855.jpg

33 ms

1506031422073457796.jpg

1506031422073457796.jpg

40 ms

1506031422438205643.jpg

1506031422438205643.jpg

40 ms

1506031421467889990.jpg

1506031421467889990.jpg

50 ms

1506031423062807085.jpg

1506031423062807085.jpg

39 ms

1506031420049831859.jpg

1506031420049831859.jpg

43 ms

1506031631359122591.jpg

1506031631359122591.jpg

53 ms

right_qh.jpg

right_qh.jpg

42 ms

1507011039061342553.jpg

1507011039061342553.jpg

45 ms

1506031415140144844.jpg

1506031415140144844.jpg

49 ms

1503031547293133348.jpg

1503031547293133348.jpg

50 ms

1503051411283411204.jpg

1503051411283411204.jpg

51 ms

1506162042321817384.jpg

1506162042321817384.jpg

52 ms

map_new.css

map_new.css

46 ms

jquery.slides.js

jquery.slides.js

45 ms

1506031349332949972.jpg

1506031349332949972.jpg

52 ms

1503041506101899712.jpg

1503041506101899712.jpg

45 ms

1603091714178469590.jpg

1603091714178469590.jpg

46 ms

1503041123294282641.jpg

1503041123294282641.jpg

49 ms

global_network.jpg

global_network.jpg

3 ms

map_tag1.png

map_tag1.png

6 ms

zhy_dtbgt_04.png

zhy_dtbgt_04.png

610 ms

silder_btn.gif

silder_btn.gif

3 ms

Accessibility Review

cosl.com.sg accessibility score

33

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

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

cosl.com.sg 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

cosl.com.sg SEO score

58

Search Engine Optimization Advices

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 Cosl.com.sg 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 Cosl.com.sg 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

cosl.com.sg

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