Tools & Wizards About Us
jkem.com screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

jkem.com

Science Instruments | Lab Automation | Robotics | J-KEM Scientific

Page Load Speed

2.1 sec in total

First Response

166 ms

Resources Loaded

1.6 sec

Page Rendered

301 ms

jkem.com screenshot

About Website

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

J-Kem Scientific creates science instruments from scientist that help with lab automation through robotics & more. Call us today. (314) 863-5536.

Visit jkem.com

Key Findings

We analyzed Jkem.com page load time and found that the first response time was 166 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

jkem.com performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.039

100/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

Network Requests Diagram

jkem.com

166 ms

www.jkem.com

419 ms

style.min.css

72 ms

mediaelementplayer-legacy.min.css

142 ms

wp-mediaelement.min.css

207 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 79% of them (44 requests) were addressed to the original Jkem.com, 7% (4 requests) were made to Google-analytics.com and 4% (2 requests) were made to Stats.wp.com. The less responsive or slowest element that took the longest time to load (802 ms) belongs to the original domain Jkem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 85.7 kB (9%)

Content Size

943.5 kB

After Optimization

857.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jkem.com main page is 943.5 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. 40% of websites need less resources to load. Javascripts take 417.8 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 73.9 kB

  • Original 91.8 kB
  • After minification 90.0 kB
  • After compression 17.9 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 73.9 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 2.5 kB

  • Original 311.3 kB
  • After minification 308.8 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. J KEM images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 5.0 kB

  • Original 417.8 kB
  • After minification 417.3 kB
  • After compression 412.8 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

-3%

Potential reduce by 4.3 kB

  • Original 122.6 kB
  • After minification 122.5 kB
  • After compression 118.3 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. Jkem.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 41 (80%)

Requests Now

51

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J KEM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jkem.com

jkem.com

166 ms

www.jkem.com

www.jkem.com

419 ms

style.min.css

style.min.css

72 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

142 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

207 ms

stencil-public.css

stencil-public.css

210 ms

sfsi-style.css

sfsi-style.css

212 ms

woocommerce-layout.css

woocommerce-layout.css

214 ms

woocommerce.css

woocommerce.css

215 ms

dashicons.min.css

dashicons.min.css

283 ms

css

css

36 ms

main.css

main.css

354 ms

jquery.min.js

jquery.min.js

350 ms

jquery-migrate.min.js

jquery-migrate.min.js

281 ms

underscore.min.js

underscore.min.js

284 ms

wp-util.min.js

wp-util.min.js

284 ms

jquery.blockUI.min.js

jquery.blockUI.min.js

352 ms

stencil-public.js

stencil-public.js

353 ms

add-to-cart.min.js

add-to-cart.min.js

445 ms

js.cookie.min.js

js.cookie.min.js

444 ms

woocommerce.min.js

woocommerce.min.js

450 ms

s-202436.js

s-202436.js

19 ms

js

js

7 ms

wc-blocks.css

wc-blocks.css

450 ms

accounting.min.js

accounting.min.js

449 ms

add-to-cart-variation.min.js

add-to-cart-variation.min.js

456 ms

core.min.js

core.min.js

449 ms

datepicker.min.js

datepicker.min.js

448 ms

pao-validation.min.js

pao-validation.min.js

515 ms

addons.min.js

addons.min.js

516 ms

modernizr.custom.min.js

modernizr.custom.min.js

517 ms

jquery.shuffle.min.js

jquery.shuffle.min.js

513 ms

random-shuffle-min.js

random-shuffle-min.js

516 ms

custom.js

custom.js

515 ms

frontend-checkout.min.js

frontend-checkout.min.js

581 ms

sourcebuster.min.js

sourcebuster.min.js

583 ms

order-attribution.min.js

order-attribution.min.js

585 ms

manifest.js

manifest.js

586 ms

vendor.js

vendor.js

802 ms

main.js

main.js

616 ms

e-202436.js

e-202436.js

16 ms

analytics.js

analytics.js

86 ms

logo.gif

logo.gif

257 ms

fallback-2.png

fallback-2.png

536 ms

peripump-1200-300x300.jpg

peripump-1200-300x300.jpg

259 ms

JKEM-Dual-Element-Thermocouple-300x300.jpg

JKEM-Dual-Element-Thermocouple-300x300.jpg

260 ms

JKEM_Precision_Controller_Model_210_Timer-300x300.jpg

JKEM_Precision_Controller_Model_210_Timer-300x300.jpg

293 ms

syr_single2-300x300.jpg

syr_single2-300x300.jpg

326 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

31 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

31 ms

linkid.js

linkid.js

6 ms

ec.js

ec.js

14 ms

collect

collect

23 ms

collect

collect

35 ms

woocommerce-smallscreen.css

woocommerce-smallscreen.css

69 ms

js

js

69 ms

Accessibility Review

jkem.com accessibility score

93

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

jkem.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

jkem.com SEO score

100

Search Engine Optimization Advices

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 Jkem.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 Jkem.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

jkem.com

Open Graph data is detected on the main page of J KEM. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: