Tools & Wizards About Us
supramolecular.org screenshot

Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

supramolecular.org

Supramolecular.org - Binding Constant Calculators | Supramolecular

Page Load Speed

3.2 sec in total

First Response

524 ms

Resources Loaded

2.5 sec

Page Rendered

143 ms

supramolecular.org screenshot

About Website

Click here to check amazing Supramolecular content. Otherwise, check out these important facts you probably never knew about supramolecular.org

This website calculators for determining binding constants from NMR, UV and Fluorescence data + many other tools for supramolecular chemistry.

Visit supramolecular.org

Key Findings

We analyzed Supramolecular.org page load time and found that the first response time was 524 ms and then it took 2.7 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

supramolecular.org performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value0 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

supramolecular.org

524 ms

js

57 ms

c6440fbf84d3.css

989 ms

40696a39efef.js

999 ms

CGCbzoKa_normal.jpg

59 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 63% of them (10 requests) were addressed to the original Supramolecular.org, 13% (2 requests) were made to Pbs.twimg.com and 13% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (999 ms) belongs to the original domain Supramolecular.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 280.1 kB (51%)

Content Size

546.1 kB

After Optimization

266.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Supramolecular.org main page is 546.1 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. 20% of websites need less resources to load. CSS take 192.4 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 15.0 kB

  • Original 19.2 kB
  • After minification 15.4 kB
  • After compression 4.2 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. This page needs HTML code to be minified as it can gain 3.8 kB, which is 20% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 15.0 kB or 78% of the original size.

Image Optimization

-9%

Potential reduce by 17.2 kB

  • Original 186.5 kB
  • After minification 169.3 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. Supramolecular images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 88.8 kB

  • Original 148.0 kB
  • After minification 148.0 kB
  • After compression 59.2 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 88.8 kB or 60% of the original size.

CSS Optimization

-83%

Potential reduce by 159.2 kB

  • Original 192.4 kB
  • After minification 189.4 kB
  • After compression 33.3 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. Supramolecular.org needs all CSS files to be minified and compressed as it can save up to 159.2 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Supramolecular. According to our analytics all requests are already optimized.

Network Requests Diagram

supramolecular.org

supramolecular.org

524 ms

js

js

57 ms

c6440fbf84d3.css

c6440fbf84d3.css

989 ms

40696a39efef.js

40696a39efef.js

999 ms

CGCbzoKa_normal.jpg

CGCbzoKa_normal.jpg

59 ms

home-feature-bg.png

home-feature-bg.png

199 ms

frontpagepic600_i8j01u2-600x376.jpg

frontpagepic600_i8j01u2-600x376.jpg

399 ms

donate-162x60.jpg

donate-162x60.jpg

396 ms

logossponsors_572acfg-600x500.jpg

logossponsors_572acfg-600x500.jpg

999 ms

wACaEcPe_normal.jpg

wACaEcPe_normal.jpg

58 ms

ga.js

ga.js

7 ms

N59kklKPso9WzbZH9jwJSg.ttf

N59kklKPso9WzbZH9jwJSg.ttf

32 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

337 ms

__utm.gif

__utm.gif

12 ms

glyphicons-halflings-regular.ttf

glyphicons-halflings-regular.ttf

198 ms

glyphicons-halflings-regular.svg

glyphicons-halflings-regular.svg

198 ms

Accessibility Review

supramolecular.org accessibility score

92

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

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

Links do not have a discernible name

Best Practices

supramolecular.org 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

supramolecular.org SEO score

91

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

Links do not have descriptive text

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 Supramolecular.org 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 Supramolecular.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

supramolecular.org

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