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3dchem.com screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

3dchem.com

Home | 3DChem.com - Chemistry, Structures & 3D Molecules

Page Load Speed

3.6 sec in total

First Response

111 ms

Resources Loaded

3.3 sec

Page Rendered

200 ms

3dchem.com screenshot

About Website

Visit 3dchem.com now to see the best up-to-date 3DChem content for United States and also check out these interesting facts you probably never knew about 3dchem.com

Visit 3dchem.com

Key Findings

We analyzed 3dchem.com page load time and found that the first response time was 111 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

3dchem.com performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

65/100

25%

SI (Speed Index)

Value6.0 s

46/100

10%

TBT (Total Blocking Time)

Value7,380 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.118

85/100

15%

TTI (Time to Interactive)

Value15.6 s

6/100

10%

Network Requests Diagram

3dchem.com

111 ms

consolidated.css

303 ms

javascript.js

168 ms

modernizr-respond.min.js

178 ms

jquery.min.js

374 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 93% of them (28 requests) were addressed to the original 3dchem.com, 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain 3dchem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 468.4 kB (30%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 3dchem.com main page is 1.6 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. 45% of websites need less resources to load. Images take 896.6 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 18.3 kB

  • Original 23.2 kB
  • After minification 21.9 kB
  • After compression 4.9 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 18.3 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 3.6 kB

  • Original 896.6 kB
  • After minification 892.9 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. 3DChem images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 358.5 kB

  • Original 546.0 kB
  • After minification 536.7 kB
  • After compression 187.5 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 358.5 kB or 66% of the original size.

CSS Optimization

-83%

Potential reduce by 88.0 kB

  • Original 106.1 kB
  • After minification 93.8 kB
  • After compression 18.1 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. 3dchem.com needs all CSS files to be minified and compressed as it can save up to 88.0 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (65%)

Requests Now

26

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 3DChem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

3dchem.com

3dchem.com

111 ms

consolidated.css

consolidated.css

303 ms

javascript.js

javascript.js

168 ms

modernizr-respond.min.js

modernizr-respond.min.js

178 ms

jquery.min.js

jquery.min.js

374 ms

scripts.min.js

scripts.min.js

400 ms

extracontent.js

extracontent.js

191 ms

uniformjs.js

uniformjs.js

354 ms

easypaginate.js

easypaginate.js

356 ms

fancybox.js

fancybox.js

354 ms

twitter.min.js

twitter.min.js

356 ms

1-5.js

1-5.js

396 ms

fade.js

fade.js

359 ms

horizontal.js

horizontal.js

358 ms

reverse-true.js

reverse-true.js

357 ms

slide-8000.js

slide-8000.js

420 ms

anim-600.js

anim-600.js

418 ms

swing.js

swing.js

418 ms

JSmol.min.js

JSmol.min.js

349 ms

ga.js

ga.js

30 ms

rosario-regular-webfont.woff

rosario-regular-webfont.woff

103 ms

zocial-regular-webfont.woff

zocial-regular-webfont.woff

104 ms

__utm.gif

__utm.gif

43 ms

opensans-regular-webfont.woff

opensans-regular-webfont.woff

98 ms

banner_1.jpg

banner_1.jpg

2492 ms

banner_2.jpg

banner_2.jpg

2495 ms

banner_3.jpg

banner_3.jpg

2493 ms

banner_4.jpg

banner_4.jpg

2491 ms

banner_5.jpg

banner_5.jpg

2492 ms

bg-direction-nav.png

bg-direction-nav.png

2489 ms

Accessibility Review

3dchem.com accessibility score

78

Accessibility Issues

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

3dchem.com best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

3dchem.com SEO score

64

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

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 3dchem.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that 3dchem.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

3dchem.com

Open Graph description is not detected on the main page of 3DChem. 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: