Tools & Wizards About Us
bulbtronics.com screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

bulbtronics.com

Lamps, LEDs, Batteries, & Lighting Equipment | Bulbtronics

Page Load Speed

2.5 sec in total

First Response

55 ms

Resources Loaded

2.3 sec

Page Rendered

156 ms

bulbtronics.com screenshot

About Website

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

Bulbtronics is a leading supplier of LED's, Lamps, Bulbs, Batteries and related supplies for Theatrical & Studio Lighting, Medical and Scientific Lighting, and Industrial and Commercial applicatio...

Visit bulbtronics.com

Key Findings

We analyzed Bulbtronics.com page load time and found that the first response time was 55 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

bulbtronics.com performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.131

81/100

15%

TTI (Time to Interactive)

Value9.0 s

33/100

10%

Network Requests Diagram

bulbtronics.com

55 ms

bulbtronics.com

134 ms

www.bulbtronics.com

1395 ms

chatinline.aspx

242 ms

stylesheet.css

37 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 81% of them (65 requests) were addressed to the original Bulbtronics.com, 4% (3 requests) were made to A4.mylivechat.com and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Bulbtronics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 351.1 kB (15%)

Content Size

2.4 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bulbtronics.com main page is 2.4 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. 65% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 114.9 kB

  • Original 128.3 kB
  • After minification 77.2 kB
  • After compression 13.4 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 51.2 kB, which is 40% 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 114.9 kB or 90% of the original size.

Image Optimization

-9%

Potential reduce by 178.1 kB

  • Original 2.0 MB
  • After minification 1.9 MB

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. Bulbtronics images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 37.2 kB

  • Original 163.6 kB
  • After minification 162.6 kB
  • After compression 126.4 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 37.2 kB or 23% of the original size.

CSS Optimization

-32%

Potential reduce by 20.9 kB

  • Original 65.3 kB
  • After minification 65.3 kB
  • After compression 44.4 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. Bulbtronics.com needs all CSS files to be minified and compressed as it can save up to 20.9 kB or 32% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (32%)

Requests Now

71

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bulbtronics. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bulbtronics.com

bulbtronics.com

55 ms

bulbtronics.com

bulbtronics.com

134 ms

www.bulbtronics.com

www.bulbtronics.com

1395 ms

chatinline.aspx

chatinline.aspx

242 ms

stylesheet.css

stylesheet.css

37 ms

styles.css

styles.css

84 ms

grid.css

grid.css

112 ms

products.css

products.css

126 ms

jquery-ui.min.css

jquery-ui.min.css

134 ms

jquery-ui.theme.min.css

jquery-ui.theme.min.css

137 ms

jquery-ui.structure.min.css

jquery-ui.structure.min.css

139 ms

css

css

32 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

174 ms

jquery-ui.min.js

jquery-ui.min.js

185 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

151 ms

jquery.animate-enhanced.min.js

jquery.animate-enhanced.min.js

157 ms

jquery.superslides.js

jquery.superslides.js

159 ms

js

js

48 ms

custom.bulb.js

custom.bulb.js

163 ms

thumbelina.js

thumbelina.js

181 ms

home.js

home.js

234 ms

thumblinafunc.js

thumblinafunc.js

259 ms

addthis_widget.js

addthis_widget.js

53 ms

getgeotrustsslseal

getgeotrustsslseal

6 ms

analytics.js

analytics.js

116 ms

logo.png

logo.png

142 ms

account.png

account.png

142 ms

social-facebook.jpg

social-facebook.jpg

142 ms

social-twitter.jpg

social-twitter.jpg

141 ms

downArrow.png

downArrow.png

142 ms

rightArrow.png

rightArrow.png

142 ms

downarrrowhome.png

downarrrowhome.png

146 ms

search.png

search.png

143 ms

cart.png

cart.png

144 ms

menu.png

menu.png

146 ms

lock.png

lock.png

144 ms

Wcart.png

Wcart.png

144 ms

ui-bg_highlight-soft_100_eeeeee_1x100.png

ui-bg_highlight-soft_100_eeeeee_1x100.png

160 ms

btg_slide_v4-spb.jpg

btg_slide_v4-spb.jpg

303 ms

7x3banner_osramspecialty-min.jpg

7x3banner_osramspecialty-min.jpg

182 ms

philips-banner-24.jpg

philips-banner-24.jpg

308 ms

7x3banner_durcell-min.jpg

7x3banner_durcell-min.jpg

161 ms

7x3banner_lensinspection-min.jpg

7x3banner_lensinspection-min.jpg

182 ms

7x3banner_protapespecialites-min.jpg

7x3banner_protapespecialites-min.jpg

202 ms

uvclampsv4.jpg

uvclampsv4.jpg

303 ms

rightSlide.png

rightSlide.png

302 ms

leftSlide.png

leftSlide.png

303 ms

36hv5.jpg

36hv5.jpg

304 ms

240x98_overstocksale_web.jpg

240x98_overstocksale_web.jpg

305 ms

SKU0085610pd.jpg

SKU0085610pd.jpg

304 ms

SKU0100546pd.jpg

SKU0100546pd.jpg

304 ms

SKU0002602pd.jpg

SKU0002602pd.jpg

305 ms

SKU0030408pd.jpg

SKU0030408pd.jpg

306 ms

SKU0002627pd.jpg

SKU0002627pd.jpg

307 ms

SKU0002787pd.jpg

SKU0002787pd.jpg

311 ms

SKU0002575pd.jpg

SKU0002575pd.jpg

308 ms

SKU0051197pd.jpg

SKU0051197pd.jpg

308 ms

SKU0090853pd.jpg

SKU0090853pd.jpg

308 ms

livechat2.aspx

livechat2.aspx

306 ms

SKU0009627pd.jpg

SKU0009627pd.jpg

307 ms

font

font

136 ms

SKU0047450pd.jpg

SKU0047450pd.jpg

307 ms

SKU0080169pd.jpg

SKU0080169pd.jpg

224 ms

collect

collect

43 ms

roboto-medium-webfont.woff

roboto-medium-webfont.woff

175 ms

robotocondensed-regular-webfont.woff

robotocondensed-regular-webfont.woff

176 ms

roboto-regular-webfont.woff

roboto-regular-webfont.woff

196 ms

robotocondensed-italic-webfont.woff

robotocondensed-italic-webfont.woff

197 ms

newyorkhq.png

newyorkhq.png

198 ms

43.png

43.png

198 ms

signup-btn.png

signup-btn.png

196 ms

facebookIcon.png

facebookIcon.png

195 ms

twitterIcon.png

twitterIcon.png

196 ms

energystar.png

energystar.png

204 ms

collect

collect

27 ms

js

js

48 ms

css

css

16 ms

chatinline.css

chatinline.css

34 ms

resources2.aspx

resources2.aspx

110 ms

font

font

3 ms

Accessibility Review

bulbtronics.com accessibility score

84

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

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

bulbtronics.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

bulbtronics.com SEO score

75

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 Bulbtronics.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 Bulbtronics.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

bulbtronics.com

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