Tools & Wizards About Us
glascol.com screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

glascol.com

Glas-Col®: Tools for Scientists®

Page Load Speed

2.4 sec in total

First Response

154 ms

Resources Loaded

1.7 sec

Page Rendered

541 ms

glascol.com screenshot

About Website

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

Glas Col is a manufacturer of laboratory equipment and lab instruments who strive to provide products that are safe, efficient, reliable, and of the highest quality.

Visit glascol.com

Key Findings

We analyzed Glascol.com page load time and found that the first response time was 154 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

glascol.com performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.146

77/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

glascol.com

154 ms

www.glascol.com

115 ms

www.glascol.com

286 ms

array.js

28 ms

app.css

104 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 84% of them (42 requests) were addressed to the original Glascol.com, 4% (2 requests) were made to Ajax.googleapis.com and 2% (1 request) were made to App.posthog.com. The less responsive or slowest element that took the longest time to load (605 ms) belongs to the original domain Glascol.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 432.0 kB (1%)

Content Size

49.4 MB

After Optimization

49.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Glascol.com main page is 49.4 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. 60% of websites need less resources to load. Images take 49.1 MB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 28.8 kB

  • Original 42.4 kB
  • After minification 37.7 kB
  • After compression 13.6 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 4.7 kB, which is 11% 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 28.8 kB or 68% of the original size.

Image Optimization

-1%

Potential reduce by 380.7 kB

  • Original 49.1 MB
  • After minification 48.7 MB

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. Glas Col images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 15.3 kB

  • Original 217.5 kB
  • After minification 216.7 kB
  • After compression 202.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-15%

Potential reduce by 7.3 kB

  • Original 50.2 kB
  • After minification 50.2 kB
  • After compression 42.9 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. Glascol.com needs all CSS files to be minified and compressed as it can save up to 7.3 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (53%)

Requests Now

45

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Glas Col. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

glascol.com

glascol.com

154 ms

www.glascol.com

www.glascol.com

115 ms

www.glascol.com

www.glascol.com

286 ms

array.js

array.js

28 ms

app.css

app.css

104 ms

print.css

print.css

160 ms

master.js

master.js

284 ms

js

js

71 ms

jquery.min.js

jquery.min.js

42 ms

spin.js

spin.js

293 ms

ladda.js

ladda.js

283 ms

jquery.ladda.js

jquery.ladda.js

275 ms

jquery.defaultbutton.js

jquery.defaultbutton.js

324 ms

jquery-ui.css

jquery-ui.css

324 ms

jquery-ui.min.js

jquery-ui.min.js

42 ms

bdsw.js

bdsw.js

338 ms

main.js

main.js

339 ms

bdsw.cart.js

bdsw.cart.js

363 ms

modernizr.js

modernizr.js

363 ms

fastclick.js

fastclick.js

387 ms

foundation.min.js

foundation.min.js

399 ms

knockout-3.0.0.js

knockout-3.0.0.js

408 ms

knockout.mapping.js

knockout.mapping.js

397 ms

jquery.cycle.all.js

jquery.cycle.all.js

435 ms

WebResource.axd

WebResource.axd

406 ms

ScriptResource.axd

ScriptResource.axd

407 ms

ScriptResource.axd

ScriptResource.axd

435 ms

72 ms

css

css

30 ms

logo%20complete.png

logo%20complete.png

149 ms

Airfiltronix%20Web%20Banner.png

Airfiltronix%20Web%20Banner.png

337 ms

Distillation%20Web%20Banner.png

Distillation%20Web%20Banner.png

404 ms

Heating%20Mantles%20Web%20Banner.png

Heating%20Mantles%20Web%20Banner.png

417 ms

FB.png

FB.png

80 ms

Instagram.png

Instagram.png

81 ms

LinkedIn.png

LinkedIn.png

83 ms

hitbox.gif

hitbox.gif

65 ms

menugradient2.png

menugradient2.png

95 ms

Airfiltronix%20Web%20Banner.png

Airfiltronix%20Web%20Banner.png

374 ms

Distillation%20Web%20Banner.png

Distillation%20Web%20Banner.png

503 ms

Heating%20Mantles%20Web%20Banner.png

Heating%20Mantles%20Web%20Banner.png

343 ms

Airfiltronix%20Web%20Banner.png

Airfiltronix%20Web%20Banner.png

364 ms

Distillation%20Web%20Banner.png

Distillation%20Web%20Banner.png

540 ms

Heating%20Mantles%20Web%20Banner.png

Heating%20Mantles%20Web%20Banner.png

580 ms

Airfiltronix%20Web%20Banner.png

Airfiltronix%20Web%20Banner.png

500 ms

Distillation%20Web%20Banner.png

Distillation%20Web%20Banner.png

562 ms

Heating%20Mantles%20Web%20Banner.png

Heating%20Mantles%20Web%20Banner.png

605 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

546 ms

font

font

13 ms

update.js

update.js

25 ms

Accessibility Review

glascol.com accessibility score

77

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

Best Practices

glascol.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

glascol.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

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 Glascol.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 Glascol.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

glascol.com

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