Tools & Wizards About Us
polytrondevices.com screenshot

Report Summary

  • 75

    Performance

    Renders faster than
    83% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

polytrondevices.com

Polytron Devices Power Supplies for Sale | Daburn

Page Load Speed

1.4 sec in total

First Response

40 ms

Resources Loaded

1 sec

Page Rendered

285 ms

polytrondevices.com screenshot

About Website

Click here to check amazing Polytron Devices content. Otherwise, check out these important facts you probably never knew about polytrondevices.com

We have a huge selection of Polytron Devices power supplies for sale online. Explore our collection of DC-DC converters, switching power modules, and more.

Visit polytrondevices.com

Key Findings

We analyzed Polytrondevices.com page load time and found that the first response time was 40 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

polytrondevices.com performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value4.1 s

87/100

10%

Network Requests Diagram

polytrondevices.com

40 ms

polytron-power-supplies.aspx

209 ms

jquery-3.5.1.min.js

83 ms

jquery-ui-1.13.0.min.js

173 ms

json2.js

95 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Polytrondevices.com, 83% (68 requests) were made to Daburn.com and 4% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (429 ms) relates to the external source Daburn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 312.5 kB (25%)

Content Size

1.3 MB

After Optimization

957.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Polytrondevices.com main page is 1.3 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 976.1 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 63.0 kB

  • Original 74.7 kB
  • After minification 70.8 kB
  • After compression 11.7 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 63.0 kB or 84% of the original size.

Image Optimization

-20%

Potential reduce by 197.4 kB

  • Original 976.1 kB
  • After minification 778.7 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, Polytron Devices needs image optimization as it can save up to 197.4 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-24%

Potential reduce by 50.2 kB

  • Original 209.8 kB
  • After minification 206.1 kB
  • After compression 159.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 50.2 kB or 24% of the original size.

CSS Optimization

-21%

Potential reduce by 1.9 kB

  • Original 9.5 kB
  • After minification 9.5 kB
  • After compression 7.6 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. Polytrondevices.com needs all CSS files to be minified and compressed as it can save up to 1.9 kB or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (39%)

Requests Now

79

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Polytron Devices. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

polytrondevices.com

polytrondevices.com

40 ms

polytron-power-supplies.aspx

polytron-power-supplies.aspx

209 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

83 ms

jquery-ui-1.13.0.min.js

jquery-ui-1.13.0.min.js

173 ms

json2.js

json2.js

95 ms

jstorage.js

jstorage.js

110 ms

custom.css.aspx

custom.css.aspx

105 ms

jquery-ui.min.css

jquery-ui.min.css

120 ms

storefront.js

storefront.js

100 ms

storefront.ie10.js

storefront.ie10.js

99 ms

jquery.producthistory.js

jquery.producthistory.js

113 ms

js

js

79 ms

siteseal.js

siteseal.js

106 ms

js

js

115 ms

761624.js

761624.js

27 ms

CategoryTree.js

CategoryTree.js

118 ms

ga.js

ga.js

28 ms

WebResource.axd

WebResource.axd

118 ms

defaultButtons.js

defaultButtons.js

121 ms

gtm.js

gtm.js

92 ms

loader.js

loader.js

93 ms

pp_cc_mark_37x23.jpg

pp_cc_mark_37x23.jpg

138 ms

trxscript.php

trxscript.php

99 ms

body_bg.gif

body_bg.gif

208 ms

header_bg.gif

header_bg.gif

186 ms

Daburn%20Website%20Logo%202023%20No%20Text.png

Daburn%20Website%20Logo%202023%20No%20Text.png

156 ms

header_cart_title.gif

header_cart_title.gif

193 ms

header_rt.gif

header_rt.gif

136 ms

top_nav_bg_lt.gif

top_nav_bg_lt.gif

136 ms

top_nav_bg.gif

top_nav_bg.gif

191 ms

top_nav_btn_home.gif

top_nav_btn_home.gif

201 ms

top_nav_btn_about.gif

top_nav_btn_about.gif

206 ms

top_nav_btn_contact.gif

top_nav_btn_contact.gif

221 ms

top_nav_btn_account.gif

top_nav_btn_account.gif

249 ms

top_nav_btn_cart.gif

top_nav_btn_cart.gif

253 ms

custom_search_text.gif

custom_search_text.gif

262 ms

custom_search_submit.gif

custom_search_submit.gif

262 ms

top_nav_bg_rt.gif

top_nav_bg_rt.gif

264 ms

mod_head_category_lt.gif

mod_head_category_lt.gif

270 ms

cc%20website%20graphic.jpg

cc%20website%20graphic.jpg

282 ms

mod_head_mail_lt.gif

mod_head_mail_lt.gif

290 ms

mod_btn_submit.gif

mod_btn_submit.gif

291 ms

Polytron_home_page.png

Polytron_home_page.png

378 ms

pager_next.gif

pager_next.gif

301 ms

MUI50.png

MUI50.png

339 ms

cart_btn_view.gif

cart_btn_view.gif

321 ms

KUIP300.png

KUIP300.png

345 ms

P3P5Linear2.2.png

P3P5Linear2.2.png

329 ms

MUIP300.png

MUIP300.png

348 ms

UIMEW35.png

UIMEW35.png

380 ms

RENUI500.png

RENUI500.png

370 ms

P3P5MHIA.jpg

P3P5MHIA.jpg

381 ms

MWB40B2A.png

MWB40B2A.png

387 ms

KW25-B2A.png

KW25-B2A.png

391 ms

LM1.png

LM1.png

411 ms

RLPB20.png

RLPB20.png

429 ms

AICP60.png

AICP60.png

417 ms

CWA15.jpg

CWA15.jpg

421 ms

CWA20_CWB20_Series.jpg

CWA20_CWB20_Series.jpg

380 ms

call-tracking_9.js

call-tracking_9.js

43 ms

webtraxs.php

webtraxs.php

66 ms

__utm.gif

__utm.gif

15 ms

DMWB15.png

DMWB15.png

300 ms

wcm

wcm

24 ms

DMWB20.png

DMWB20.png

311 ms

DMWB30.png

DMWB30.png

317 ms

DMWB40.png

DMWB40.png

296 ms

DSBH1.png

DSBH1.png

305 ms

DSBH2.png

DSBH2.png

292 ms

DSBH3.png

DSBH3.png

300 ms

FWBD150.png

FWBD150.png

292 ms

hea2.png

hea2.png

299 ms

heb2.png

heb2.png

295 ms

HWA100.png

HWA100.png

273 ms

HWB100.png

HWB100.png

284 ms

HWB150-new.png

HWB150-new.png

279 ms

HWC200-72S5A.1.jpg

HWC200-72S5A.1.jpg

278 ms

HWB75.png

HWB75.png

284 ms

HWC200-72S5A.2.jpg

HWC200-72S5A.2.jpg

280 ms

foot_nav_bg_lt.gif

foot_nav_bg_lt.gif

275 ms

foot_nav_bg.gif

foot_nav_bg.gif

275 ms

foot_nav_bg_rt.gif

foot_nav_bg_rt.gif

283 ms

Accessibility Review

polytrondevices.com accessibility score

67

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.

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

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

polytrondevices.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

polytrondevices.com SEO score

99

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

High

Tap targets are not sized appropriately

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 Polytrondevices.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 Polytrondevices.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

polytrondevices.com

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