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ohm-labs.com screenshot

Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

ohm-labs.com

Resistance Standards - Current Shunts - High Voltage Dividers | Ohm-Labs, Inc.

Page Load Speed

737 ms in total

First Response

103 ms

Resources Loaded

521 ms

Page Rendered

113 ms

ohm-labs.com screenshot

About Website

Click here to check amazing Ohm Labs content. Otherwise, check out these important facts you probably never knew about ohm-labs.com

Ohm-Labs is the only USA company to focus exclusively on resistance. Ohm-Labs manufactures standard resistors, precision current shunts and laboratory high voltage dividers.

Visit ohm-labs.com

Key Findings

We analyzed Ohm-labs.com page load time and found that the first response time was 103 ms and then it took 634 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

ohm-labs.com performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

88/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

36/100

25%

SI (Speed Index)

Value1.9 s

100/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

ohm-labs.com

103 ms

styles.css

16 ms

menu.css

31 ms

jquery.js

46 ms

menu.js

31 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 90% of them (18 requests) were addressed to the original Ohm-labs.com, 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (316 ms) belongs to the original domain Ohm-labs.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 107.4 kB (26%)

Content Size

420.8 kB

After Optimization

313.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ohm-labs.com main page is 420.8 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. 20% of websites need less resources to load. Images take 268.5 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 8.7 kB

  • Original 11.5 kB
  • After minification 9.9 kB
  • After compression 2.8 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 1.6 kB, which is 14% 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 8.7 kB or 75% of the original size.

Image Optimization

-3%

Potential reduce by 7.7 kB

  • Original 268.5 kB
  • After minification 260.8 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. Ohm Labs images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 86.0 kB

  • Original 134.5 kB
  • After minification 113.8 kB
  • After compression 48.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 86.0 kB or 64% of the original size.

CSS Optimization

-80%

Potential reduce by 5.0 kB

  • Original 6.3 kB
  • After minification 4.0 kB
  • After compression 1.3 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. Ohm-labs.com needs all CSS files to be minified and compressed as it can save up to 5.0 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (16%)

Requests Now

19

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ohm Labs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

ohm-labs.com

ohm-labs.com

103 ms

styles.css

styles.css

16 ms

menu.css

menu.css

31 ms

jquery.js

jquery.js

46 ms

menu.js

menu.js

31 ms

jquery.cycle.all.js

jquery.cycle.all.js

60 ms

ga.js

ga.js

39 ms

background.jpg

background.jpg

16 ms

banner.png

banner.png

316 ms

main-bg.png

main-bg.png

17 ms

main-delimiter.png

main-delimiter.png

16 ms

item-pointer.gif

item-pointer.gif

17 ms

resistance_lg.jpg

resistance_lg.jpg

60 ms

precisionshunts_lg.png

precisionshunts_lg.png

105 ms

highvoltage_lg.jpg

highvoltage_lg.jpg

60 ms

instruments_lg.jpg

instruments_lg.jpg

61 ms

newproduct.jpg

newproduct.jpg

75 ms

contact.jpg

contact.jpg

74 ms

lava.png

lava.png

75 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

ohm-labs.com accessibility score

63

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

ohm-labs.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

SEO Factors

ohm-labs.com SEO score

69

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ohm-labs.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ohm-labs.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

ohm-labs.com

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