Tools & Wizards About Us
basechem.org screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

basechem.org

物竞化学品数据库-专业、全面的化学品基础数据库

Page Load Speed

17.6 sec in total

First Response

1.3 sec

Resources Loaded

16.1 sec

Page Rendered

191 ms

basechem.org screenshot

About Website

Welcome to basechem.org homepage info - get ready to check Basechem best content for China right away, or after learning these important things about basechem.org

物竞化学品数据库是由上海物竞化工科技有限公司开发的一个化学品专用数据库。其中涵盖了数万种化学品，其内容包括化学品的中英文名称、别名、CAS号、用途、物性、结构式、分子式、分子量以及表征图谱等方面的信息

Visit basechem.org

Key Findings

We analyzed Basechem.org page load time and found that the first response time was 1.3 sec and then it took 16.3 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

basechem.org performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

71/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

basechem.org

1328 ms

www.basechem.org

1200 ms

Home_Index1.css

5565 ms

stat.php

1578 ms

jquery.min.js

9274 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Basechem.org, 53% (21 requests) were made to Pages.basechem.org and 13% (5 requests) were made to Images.basechem.org. The less responsive or slowest element that took the longest time to load (9.3 sec) relates to the external source Pages.basechem.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 45.9 kB (32%)

Content Size

143.3 kB

After Optimization

97.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Basechem.org main page is 143.3 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. Images take 64.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 17.9 kB

  • Original 23.1 kB
  • After minification 20.9 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 17.9 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 1.5 kB

  • Original 64.3 kB
  • After minification 62.7 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. Basechem images are well optimized though.

JavaScript Optimization

-47%

Potential reduce by 26.5 kB

  • Original 55.9 kB
  • After minification 55.2 kB
  • After compression 29.5 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 26.5 kB or 47% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (51%)

Requests Now

37

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Basechem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

basechem.org

basechem.org

1328 ms

www.basechem.org

www.basechem.org

1200 ms

Home_Index1.css

Home_Index1.css

5565 ms

stat.php

stat.php

1578 ms

jquery.min.js

jquery.min.js

9274 ms

jquery.cycle.all.js

jquery.cycle.all.js

8795 ms

jquery-ui-1.8.18.custom.min.js

jquery-ui-1.8.18.custom.min.js

5352 ms

wingch.js

wingch.js

4287 ms

jquery.switchable.min.js

jquery.switchable.min.js

4600 ms

jquery.orbit-1.2.3.min.js

jquery.orbit-1.2.3.min.js

6256 ms

Home_Index1.js

Home_Index1.js

4729 ms

60f9080081ac55c45ef92b64754b9570-thumb.jpg

60f9080081ac55c45ef92b64754b9570-thumb.jpg

3478 ms

f55d1441903c11f423eae290f00a07a8-thumb.gif

f55d1441903c11f423eae290f00a07a8-thumb.gif

3174 ms

3b4d12f64d62840e95f207a279c36c09-thumb.gif

3b4d12f64d62840e95f207a279c36c09-thumb.gif

4254 ms

f9da675a363c68c058df2be25f4284d5-thumb.gif

f9da675a363c68c058df2be25f4284d5-thumb.gif

3874 ms

585ad2e0338669315035436456d6e5b6-thumb.gif

585ad2e0338669315035436456d6e5b6-thumb.gif

4307 ms

logo.png

logo.png

571 ms

sina_bg.png

sina_bg.png

572 ms

nav_bg.png

nav_bg.png

1678 ms

search_bg.png

search_bg.png

2609 ms

entry_bg.png

entry_bg.png

1737 ms

switchable_bg.png

switchable_bg.png

1231 ms

product_bg.png

product_bg.png

1794 ms

toolkit_bg.png

toolkit_bg.png

3405 ms

partner_bg.png

partner_bg.png

2307 ms

partner_eg.png

partner_eg.png

2357 ms

quick_search_bg.png

quick_search_bg.png

2878 ms

copyright_bg.png

copyright_bg.png

2918 ms

v110.jpg

v110.jpg

4521 ms

v111.jpg

v111.jpg

3595 ms

gongshang.gif

gongshang.gif

3507 ms

stat.htm

stat.htm

1299 ms

core.php

core.php

776 ms

9.gif

9.gif

789 ms

pic.gif

pic.gif

1677 ms

app.gif

app.gif

1069 ms

ga.js

ga.js

22 ms

h.js

h.js

3034 ms

__utm.gif

__utm.gif

14 ms

hm.gif

hm.gif

1177 ms

Accessibility Review

basechem.org accessibility score

83

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

basechem.org 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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

basechem.org SEO score

85

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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Basechem.org 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 Basechem.org 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

basechem.org

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