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Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

universalsecurity.com

Universal Security Instruments - Smoke, CO, Safety Products

Page Load Speed

1.4 sec in total

First Response

73 ms

Resources Loaded

984 ms

Page Rendered

377 ms

About Website

Welcome to universalsecurity.com homepage info - get ready to check Universal Security best content for United States right away, or after learning these important things about universalsecurity.com

USI makes the most innovative home protection solutions available today. Since our founding in 1969, we’ve become one of the largest manufacturers of smoke and carbon monoxide alarms in the world.

Visit universalsecurity.com

Key Findings

We analyzed Universalsecurity.com page load time and found that the first response time was 73 ms and then it took 1.4 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

universalsecurity.com performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value10.1 s

0/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.435

21/100

15%

TTI (Time to Interactive)

Value8.8 s

35/100

10%

Network Requests Diagram

universalsecurity.com

73 ms

universalsecurity.com

104 ms

www.universalsecurity.com

136 ms

css

30 ms

bootstrap.min.css

52 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 79% of them (48 requests) were addressed to the original Universalsecurity.com, 15% (9 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (448 ms) belongs to the original domain Universalsecurity.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 145.3 kB (9%)

Content Size

1.6 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Universalsecurity.com main page is 1.6 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. 60% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 54.9 kB

  • Original 63.6 kB
  • After minification 40.0 kB
  • After compression 8.6 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 23.6 kB, which is 37% 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 54.9 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 4.2 kB

  • Original 1.3 MB
  • After minification 1.3 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. Universal Security images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 35.0 kB

  • Original 163.9 kB
  • After minification 163.9 kB
  • After compression 128.9 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 35.0 kB or 21% of the original size.

CSS Optimization

-41%

Potential reduce by 51.2 kB

  • Original 123.7 kB
  • After minification 123.7 kB
  • After compression 72.6 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. Universalsecurity.com needs all CSS files to be minified and compressed as it can save up to 51.2 kB or 41% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (60%)

Requests Now

48

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Universal Security. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

universalsecurity.com accessibility score

80

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

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

universalsecurity.com best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

universalsecurity.com SEO score

90

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

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 Universalsecurity.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 Universalsecurity.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

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