Tools & Wizards About Us
voltamp.com screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

voltamp.com

Continuous Variable Voltage Auto Transformer Variac | Servo Controlled Low Voltage Stabilizer | Toroidal Auto Double Wound Enclosed Transformer | Dimm...

Page Load Speed

1.3 sec in total

First Response

145 ms

Resources Loaded

940 ms

Page Rendered

240 ms

voltamp.com screenshot

About Website

Visit voltamp.com now to see the best up-to-date Voltamp content and also check out these interesting facts you probably never knew about voltamp.com

Click for Transformer, Voltage Transformer, Continuous Variable Voltage Auto Transformer, Variac, Dimmer, Stabilizer, Servo Stabilizer, Voltage Compensator, Auto Voltage Stabilizer, Voltage Stabilizer...

Visit voltamp.com

Key Findings

We analyzed Voltamp.com page load time and found that the first response time was 145 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

voltamp.com performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value7.3 s

28/100

10%

TBT (Total Blocking Time)

Value3,280 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.05

99/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

Network Requests Diagram

voltamp.com

145 ms

www.voltamp.com

159 ms

style.css

101 ms

homepage.css

81 ms

voltamp.css

94 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 96% of them (50 requests) were addressed to the original Voltamp.com, 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (506 ms) belongs to the original domain Voltamp.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 407.5 kB (28%)

Content Size

1.4 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Voltamp.com main page is 1.4 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. 40% of websites need less resources to load. Images take 947.2 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 22.0 kB

  • Original 26.8 kB
  • After minification 23.5 kB
  • After compression 4.8 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 3.4 kB, which is 13% 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 22.0 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 50.9 kB

  • Original 947.2 kB
  • After minification 896.3 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. Voltamp images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 225.7 kB

  • Original 340.8 kB
  • After minification 307.5 kB
  • After compression 115.1 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 225.7 kB or 66% of the original size.

CSS Optimization

-84%

Potential reduce by 109.0 kB

  • Original 129.7 kB
  • After minification 109.6 kB
  • After compression 20.8 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. Voltamp.com needs all CSS files to be minified and compressed as it can save up to 109.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (46%)

Requests Now

48

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Voltamp. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

voltamp.com

voltamp.com

145 ms

www.voltamp.com

www.voltamp.com

159 ms

style.css

style.css

101 ms

homepage.css

homepage.css

81 ms

voltamp.css

voltamp.css

94 ms

responsive.css

responsive.css

91 ms

prettyphoto.css

prettyphoto.css

93 ms

nivoslider.css

nivoslider.css

95 ms

foundation.min.js

foundation.min.js

213 ms

jquery.cycle.js

jquery.cycle.js

244 ms

elasticslideshow.js

elasticslideshow.js

192 ms

jquery.carouFredSel-6.0.5-packed.js

jquery.carouFredSel-6.0.5-packed.js

185 ms

jquery.nivo.slider.pack.js

jquery.nivo.slider.pack.js

178 ms

app.js

app.js

179 ms

modernizr.foundation.js

modernizr.foundation.js

207 ms

slidepanel.js

slidepanel.js

202 ms

scrolltotop.js

scrolltotop.js

234 ms

hoverIntent.js

hoverIntent.js

258 ms

superfish.js

superfish.js

257 ms

responsivemenu.js

responsivemenu.js

257 ms

jquery.tweet.js

jquery.tweet.js

256 ms

twitterusername.js

twitterusername.js

259 ms

jquery.isotope.min.js

jquery.isotope.min.js

289 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

287 ms

custom.js

custom.js

309 ms

analytics.js

analytics.js

23 ms

info.png

info.png

246 ms

plus.png

plus.png

245 ms

logo4.png

logo4.png

245 ms

1.jpg

1.jpg

480 ms

2.jpg

2.jpg

506 ms

3.jpg

3.jpg

356 ms

4.jpg

4.jpg

325 ms

1(1).jpg

1(1).jpg

293 ms

2(1).jpg

2(1).jpg

321 ms

3(1).jpg

3(1).jpg

333 ms

dots.gif

dots.gif

368 ms

playgal.png

playgal.png

365 ms

rect-sm.jpg

rect-sm.jpg

381 ms

steady.jpg

steady.jpg

448 ms

varivolt-sm.jpg

varivolt-sm.jpg

402 ms

Sinetek.jpg

Sinetek.jpg

450 ms

varivolt.jpg

varivolt.jpg

431 ms

toro-sm.jpg

toro-sm.jpg

446 ms

cvt-sm.jpg

cvt-sm.jpg

466 ms

collect

collect

11 ms

cts-sm.jpg

cts-sm.jpg

424 ms

DroidSans-webfont.woff

DroidSans-webfont.woff

457 ms

websymbols-regular-webfont.woff

websymbols-regular-webfont.woff

432 ms

acm-sm.jpg

acm-sm.jpg

446 ms

logo-p.jpg

logo-p.jpg

441 ms

lv-sm.jpg

lv-sm.jpg

437 ms

Accessibility Review

voltamp.com accessibility score

71

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.

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

voltamp.com best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

voltamp.com SEO score

83

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

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 Voltamp.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 Voltamp.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

voltamp.com

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