Tools & Wizards About Us
emsciences.com screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

emsciences.com

World's Best Solder Training & Certification Since 1981

Page Load Speed

1.3 sec in total

First Response

75 ms

Resources Loaded

1 sec

Page Rendered

185 ms

emsciences.com screenshot

About Website

Welcome to emsciences.com homepage info - get ready to check Emsciences best content right away, or after learning these important things about emsciences.com

Unique Science of Soldering teaches more in less time and lower cost.  Classes are held at YOUR offices.

Visit emsciences.com

Key Findings

We analyzed Emsciences.com page load time and found that the first response time was 75 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

emsciences.com performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value3.7 s

86/100

10%

TBT (Total Blocking Time)

Value990 ms

27/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.5 s

47/100

10%

Network Requests Diagram

emsciences.com

75 ms

emsciences.com

43 ms

site_global.css

25 ms

master_a-master.css

27 ms

index.css

32 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 54% of them (22 requests) were addressed to the original Emsciences.com, 10% (4 requests) were made to Fonts.gstatic.com and 7% (3 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (452 ms) relates to the external source Gm02f.opentracker.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 195.8 kB (30%)

Content Size

652.7 kB

After Optimization

456.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Emsciences.com main page is 652.7 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. 45% of websites need less resources to load. Javascripts take 333.9 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 152.3 kB

  • Original 167.6 kB
  • After minification 131.3 kB
  • After compression 15.3 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. This page needs HTML code to be minified as it can gain 36.3 kB, which is 22% 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 152.3 kB or 91% of the original size.

Image Optimization

-32%

Potential reduce by 40.8 kB

  • Original 127.6 kB
  • After minification 86.8 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. Obviously, Emsciences needs image optimization as it can save up to 40.8 kB or 32% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 2.3 kB

  • Original 333.9 kB
  • After minification 333.9 kB
  • After compression 331.6 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

-1%

Potential reduce by 327 B

  • Original 23.5 kB
  • After minification 23.5 kB
  • After compression 23.2 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. Emsciences.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 20 (57%)

Requests Now

35

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Emsciences. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

emsciences.com

emsciences.com

75 ms

emsciences.com

emsciences.com

43 ms

site_global.css

site_global.css

25 ms

master_a-master.css

master_a-master.css

27 ms

index.css

index.css

32 ms

server1.opentracker.net

server1.opentracker.net

298 ms

require.js

require.js

35 ms

collect.jsp

collect.jsp

452 ms

log.opentracker.net

log.opentracker.net

417 ms

analytics.js

analytics.js

25 ms

bat.js

bat.js

53 ms

blank.gif

blank.gif

39 ms

api.js

api.js

32 ms

museconfig.js

museconfig.js

25 ms

collect

collect

14 ms

recaptcha__en.js

recaptcha__en.js

58 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

22 ms

museutils.js

museutils.js

33 ms

whatinput.js

whatinput.js

21 ms

jquery.musepolyfill.bgsize.js

jquery.musepolyfill.bgsize.js

19 ms

jquery.musemenu.js

jquery.musemenu.js

53 ms

webpro.js

webpro.js

52 ms

jquery.watch.js

jquery.watch.js

51 ms

jquery.museresponsive.js

jquery.museresponsive.js

51 ms

js

js

96 ms

5189326.js

5189326.js

40 ms

soldering-iron-photo-with-pcb-black-with-smoke-flipped-1500px.jpg

soldering-iron-photo-with-pcb-black-with-smoke-flipped-1500px.jpg

19 ms

fallback

fallback

25 ms

fallback__ltr.css

fallback__ltr.css

4 ms

css

css

28 ms

logo_48.png

logo_48.png

4 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

36 ms

KFOlCnqEu92Fr1MmEU9fBBc-.woff

KFOlCnqEu92Fr1MmEU9fBBc-.woff

36 ms

fallback

fallback

106 ms

call_nowfw.png

call_nowfw.png

100 ms

we_come.png

we_come.png

15 ms

worlds_most.png

worlds_most.png

19 ms

logo.png

logo.png

42 ms

science-of-soldering-logo-alt-8-2-2020.png

science-of-soldering-logo-alt-8-2-2020.png

15 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

13 ms

KFOlCnqEu92Fr1MmEU9fBBc-.woff

KFOlCnqEu92Fr1MmEU9fBBc-.woff

11 ms

Accessibility Review

emsciences.com accessibility score

96

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

Some elements have a [tabindex] value greater than 0

Best Practices

emsciences.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

emsciences.com SEO score

86

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 doesn't use 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 Emsciences.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 Emsciences.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

emsciences.com

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