Tools & Wizards About Us

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

molecularvisions.com

Molecular Chemistry Models - introductory chemistry models, chemistry modeling guides, biochemistry models, organic models, atom models, framework mod...

Page Load Speed

1.9 sec in total

First Response

386 ms

Resources Loaded

1.4 sec

Page Rendered

109 ms

About Website

Welcome to molecularvisions.com homepage info - get ready to check Molecular Visions best content right away, or after learning these important things about molecularvisions.com

organic models, atom models, framework models, space filling models, solid-state models, diamond model, graphite model, biochemistry models, protein models, fullerene models, cyclohexane model, modeli

Visit molecularvisions.com

Key Findings

We analyzed Molecularvisions.com page load time and found that the first response time was 386 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

molecularvisions.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

www.molecularvisions.com

386 ms

layout.css

67 ms

style.css

132 ms

lightbox.css

177 ms

prototype.js

346 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 94% of them (30 requests) were addressed to the original Molecularvisions.com, 3% (1 request) were made to Code.jquery.com and 3% (1 request) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (386 ms) belongs to the original domain Molecularvisions.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 227.2 kB (54%)

Content Size

420.1 kB

After Optimization

192.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Molecularvisions.com main page is 420.1 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. 25% of websites need less resources to load. Javascripts take 262.3 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 10.7 kB

  • Original 15.2 kB
  • After minification 14.1 kB
  • After compression 4.5 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 10.7 kB or 71% of the original size.

Image Optimization

-0%

Potential reduce by 18 B

  • Original 127.3 kB
  • After minification 127.3 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. Molecular Visions images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 204.9 kB

  • Original 262.3 kB
  • After minification 201.6 kB
  • After compression 57.3 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 204.9 kB or 78% of the original size.

CSS Optimization

-75%

Potential reduce by 11.5 kB

  • Original 15.3 kB
  • After minification 12.2 kB
  • After compression 3.8 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. Molecularvisions.com needs all CSS files to be minified and compressed as it can save up to 11.5 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (55%)

Requests Now

31

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Molecular Visions. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

molecularvisions.com accessibility score

45

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best Practices

molecularvisions.com 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

molecularvisions.com SEO score

67

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 Molecularvisions.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 Molecularvisions.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

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