Tools & Wizards About Us
lightbulbs4cars.com screenshot

Report Summary

  • 4

    Performance

    Renders faster than
    20% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

lightbulbs4cars.com

Xenon headlight bulbs, automotive foglight bulbs, HID replacement car bulbs, LED head/fog light bulbs

Page Load Speed

3.9 sec in total

First Response

460 ms

Resources Loaded

2.9 sec

Page Rendered

546 ms

lightbulbs4cars.com screenshot

About Website

Visit lightbulbs4cars.com now to see the best up-to-date Light Bulbs 4 Car S content for China and also check out these interesting facts you probably never knew about lightbulbs4cars.com

Offers HID replacement xenon bulbs, HID conversion kits, automotive halogen headlight & foglight bulbs, H1, H3, H4/9003/HB2, H7, H8, H9, H10/9145, H11, H11B, H12/9055, H13/9008, H15, H16, 5202/9009, 9...

Visit lightbulbs4cars.com

Key Findings

We analyzed Lightbulbs4cars.com page load time and found that the first response time was 460 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

lightbulbs4cars.com performance score

4

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value4,930 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value1.68

0/100

15%

TTI (Time to Interactive)

Value14.4 s

9/100

10%

Network Requests Diagram

www.lightbulbs4cars.com

460 ms

common.css

156 ms

border.css

157 ms

layout.css

234 ms

input.css

231 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that 85% of them (75 requests) were addressed to the original Lightbulbs4cars.com, 2% (2 requests) were made to Sealserver.trustwave.com and 2% (2 requests) were made to Tracedseals.starfieldtech.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Lightbulbs4cars.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 462.4 kB (41%)

Content Size

1.1 MB

After Optimization

654.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lightbulbs4cars.com main page is 1.1 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. 30% of websites need less resources to load. Images take 638.1 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 64.6 kB

  • Original 77.1 kB
  • After minification 76.8 kB
  • After compression 12.5 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 64.6 kB or 84% of the original size.

Image Optimization

-14%

Potential reduce by 90.0 kB

  • Original 638.1 kB
  • After minification 548.1 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, Light Bulbs 4 Car S needs image optimization as it can save up to 90.0 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 257.5 kB

  • Original 338.4 kB
  • After minification 267.8 kB
  • After compression 80.9 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 257.5 kB or 76% of the original size.

CSS Optimization

-79%

Potential reduce by 50.2 kB

  • Original 63.5 kB
  • After minification 56.6 kB
  • After compression 13.3 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. Lightbulbs4cars.com needs all CSS files to be minified and compressed as it can save up to 50.2 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 49 (56%)

Requests Now

87

After Optimization

38

  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Light Bulbs 4 Car S. 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 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.lightbulbs4cars.com

www.lightbulbs4cars.com

460 ms

common.css

common.css

156 ms

border.css

border.css

157 ms

layout.css

layout.css

234 ms

input.css

input.css

231 ms

product.css

product.css

256 ms

site.css

site.css

200 ms

pageelements.css

pageelements.css

224 ms

preview.css

preview.css

223 ms

prototype.js

prototype.js

348 ms

effects.js

effects.js

371 ms

server.js

server.js

297 ms

bounds.js

bounds.js

310 ms

tip.js

tip.js

311 ms

touch.js

touch.js

335 ms

site.js

site.js

369 ms

stats.js

stats.js

486 ms

form.js

form.js

390 ms

productPrice.js

productPrice.js

511 ms

table.js

table.js

419 ms

action.js

action.js

437 ms

seal.js

seal.js

44 ms

get

get

312 ms

seal.js

seal.js

32 ms

lifetime.gif

lifetime.gif

229 ms

menu.img

menu.img

174 ms

menu.img

menu.img

84 ms

menu.img

menu.img

171 ms

menu.img

menu.img

184 ms

menu.img

menu.img

172 ms

menu.img

menu.img

181 ms

menu.img

menu.img

265 ms

menu.img

menu.img

348 ms

menu.img

menu.img

344 ms

menu.img

menu.img

344 ms

menu.img

menu.img

257 ms

menu.img

menu.img

262 ms

menu.img

menu.img

432 ms

menu.img

menu.img

337 ms

menu.img

menu.img

344 ms

menu.img

menu.img

515 ms

menu.img

menu.img

510 ms

menu.img

menu.img

507 ms

menu.img

menu.img

516 ms

content.img

content.img

524 ms

content.img

content.img

514 ms

pagetitle.img

pagetitle.img

584 ms

ZL_image1.jpg

ZL_image1.jpg

649 ms

image.img

image.img

1393 ms

d2s_6k.jpg

d2s_6k.jpg

596 ms

ledbulbH16_3.jpg

ledbulbH16_3.jpg

674 ms

h13_kit.jpg

h13_kit.jpg

661 ms

heading.img

heading.img

753 ms

image.img

image.img

753 ms

heading.img

heading.img

817 ms

autoresize.img

autoresize.img

733 ms

autoresize.img

autoresize.img

752 ms

autoresize.img

autoresize.img

804 ms

autoresize.img

autoresize.img

822 ms

autoresize.img

autoresize.img

833 ms

autoresize.img

autoresize.img

820 ms

ads

ads

192 ms

autoresize.img

autoresize.img

804 ms

add_fav_button.gif

add_fav_button.gif

727 ms

image.img

image.img

730 ms

web_hosting_companies.png

web_hosting_companies.png

748 ms

content.img

content.img

847 ms

content.img

content.img

778 ms

64e1f380007c013264457a163e74bed5.gif

64e1f380007c013264457a163e74bed5.gif

36 ms

seal_image.php

seal_image.php

21 ms

secure90x72.gif

secure90x72.gif

18 ms

gtagb4.js

gtagb4.js

78 ms

1456869883998

1456869883998

805 ms

header.img

header.img

815 ms

siteimage.img

siteimage.img

884 ms

counter.js

counter.js

9 ms

t.php

t.php

49 ms

navbar.img

navbar.img

696 ms

body.img

body.img

769 ms

content.img

content.img

868 ms

content.img

content.img

898 ms

content.img

content.img

908 ms

pagetitle_background.img

pagetitle_background.img

766 ms

gradient.png

gradient.png

717 ms

content.img

content.img

776 ms

content.img

content.img

774 ms

ts

ts

105 ms

siteseal_reseller.gif

siteseal_reseller.gif

297 ms

Accessibility Review

lightbulbs4cars.com accessibility score

67

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Best Practices

lightbulbs4cars.com best practices score

67

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

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

High

Page has valid source maps

SEO Factors

lightbulbs4cars.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

    ISO8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lightbulbs4cars.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 Lightbulbs4cars.com main page’s claimed encoding is iso8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

lightbulbs4cars.com

Open Graph description is not detected on the main page of Light Bulbs 4 Car S. 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: