Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

Page Load Speed

681 ms in total

First Response

225 ms

Resources Loaded

301 ms

Page Rendered

155 ms

replacementlightbulbs.com screenshot

About Website

Visit replacementlightbulbs.com now to see the best up-to-date Replacement Light Bulb S content for United States and also check out these interesting facts you probably never knew about replacementlightbulbs.com

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Key Findings

We analyzed Replacementlightbulbs.com page load time and found that the first response time was 225 ms and then it took 456 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

replacementlightbulbs.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.2 s

100/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

replacementlightbulbs.com

225 ms

blue-seal-200-42-replacementlightbulbscominc-33004074.png

67 ms

rlblogo.gif

70 ms

urchin.js

23 ms

__utm.gif

11 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that 40% of them (2 requests) were addressed to the original Replacementlightbulbs.com, 40% (2 requests) were made to Google-analytics.com and 20% (1 request) were made to Seal-greensboro.bbb.org. The less responsive or slowest element that took the longest time to load (225 ms) belongs to the original domain Replacementlightbulbs.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 7.0 kB (35%)

Content Size

20.2 kB

After Optimization

13.2 kB

In fact, the total size of Replacementlightbulbs.com main page is 20.2 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. Only 5% of websites need less resources to load. HTML takes 8.6 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 5.6 kB

  • Original 8.6 kB
  • After minification 8.0 kB
  • After compression 3.0 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 5.6 kB or 65% of the original size.

Image Optimization

-10%

Potential reduce by 465 B

  • Original 4.8 kB
  • After minification 4.3 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. Replacement Light Bulb S images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 971 B

  • Original 6.8 kB
  • After minification 6.8 kB
  • After compression 5.9 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 971 B or 14% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Replacement Light Bulb S. According to our analytics all requests are already optimized.

Accessibility Review

replacementlightbulbs.com accessibility score

53

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

Form elements do not have associated labels

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

The document uses <meta http-equiv="refresh">

Best Practices

replacementlightbulbs.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

SEO Factors

replacementlightbulbs.com SEO score

84

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

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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Replacementlightbulbs.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 Replacementlightbulbs.com main page’s claimed encoding is iso-8859-1. 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

Open Graph description is not detected on the main page of Replacement Light Bulb 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: