Tools & Wizards About Us

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

chromtech.com

Chromatography Specialists & Supplier | Chrom Tech, Inc.

Page Load Speed

2.6 sec in total

First Response

67 ms

Resources Loaded

2.3 sec

Page Rendered

228 ms

About Website

Click here to check amazing Chrom Tech content for China. Otherwise, check out these important facts you probably never knew about chromtech.com

Specializing in high-performance liquid chromatography instrumentation, Chrom Tech is a leading distributor of GC and HPLC products.

Visit chromtech.com

Key Findings

We analyzed Chromtech.com page load time and found that the first response time was 67 ms and then it took 2.5 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

chromtech.com performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value7.0 s

33/100

10%

TBT (Total Blocking Time)

Value6,520 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value1.169

1/100

15%

TTI (Time to Interactive)

Value21.4 s

1/100

10%

Network Requests Diagram

chromtech.com

67 ms

chromtech.com

298 ms

theme-bundle.polyfills.js

121 ms

theme-bundle.head_async.js

184 ms

css

203 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 5% of them (3 requests) were addressed to the original Chromtech.com, 44% (26 requests) were made to Cdn11.bigcommerce.com and 8% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Fonts.gstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 233.8 kB (40%)

Content Size

586.9 kB

After Optimization

353.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Chromtech.com main page is 586.9 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 289.1 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 224.8 kB

  • Original 289.1 kB
  • After minification 272.2 kB
  • After compression 64.3 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 224.8 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 68.9 kB
  • After minification 68.9 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. Chrom Tech images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 8.9 kB

  • Original 228.9 kB
  • After minification 228.8 kB
  • After compression 219.9 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.

Requests Breakdown

Number of requests can be reduced by 28 (54%)

Requests Now

52

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chrom Tech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

chromtech.com accessibility score

78

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

chromtech.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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

chromtech.com SEO score

86

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

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 Chromtech.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 Chromtech.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 Chrom Tech. 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: