Access chromatographytoday.com. Welcome to Chromatography Today

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value13.4 s

0/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value1,760 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

chromatographytoday.com

191 ms

chromatographytoday.com

323 ms

www.chromatographytoday.com

677 ms

jquery-3.6.4.min.js

41 ms

4ffdc26cb2.js

97 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 55% of them (44 requests) were addressed to the original Chromatographytoday.com, 13% (10 requests) were made to Fonts.gstatic.com and 6% (5 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Chromatographytoday.com.

Content Size

1.2 MB

After Optimization

1.0 MB

In fact, the total size of Chromatographytoday.com main page is 1.2 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 658.3 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 147.0 kB

Original 171.4 kB
After minification 117.9 kB
After compression 24.4 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 53.5 kB, which is 31% 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 147.0 kB or 86% of the original size.

Image Optimization

-2%

Potential reduce by 12.4 kB

Original 658.3 kB
After minification 645.9 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. Chromatography Today images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.3 kB

Original 344.4 kB
After minification 344.3 kB
After compression 342.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 25 B

Original 35.1 kB
After minification 35.1 kB
After compression 35.1 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. Chromatographytoday.com has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chromatography Today. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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/).

High

Document doesn't use 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 Chromatographytoday.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 Chromatographytoday.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

chromatographytoday.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Welcome to Chromatography Today

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

chromatographytoday.com

chromatographytoday.com

www.chromatographytoday.com

jquery-3.6.4.min.js

4ffdc26cb2.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

chromatographytoday.com

chromatographytoday.com

www.chromatographytoday.com

jquery-3.6.4.min.js

4ffdc26cb2.js

bootstrap.min.js

ct.css

gpt.js

js

js

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abf74a0666967c7767bfc5fc7eb3616a.js

api.js

css

pubads_impl.js

ga.js

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