Tools & Wizards About Us
sentinelpower.com screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

sentinelpower.com

Surge Protection/Current Sensors/AC Power and Dataline Protectors/Veris Power Meters/ Environmental Sensors/Sentinel Power Inc

Page Load Speed

7.7 sec in total

First Response

1.1 sec

Resources Loaded

6.5 sec

Page Rendered

106 ms

sentinelpower.com screenshot

About Website

Welcome to sentinelpower.com homepage info - get ready to check Sentinel Power best content right away, or after learning these important things about sentinelpower.com

Distributor for: MCG-surge protection, AC power and dataline protectors. Veris-power meters, current sensors, environmental sensors. ACI-HVAC controls & sensors, interface devices. Sensaphone- alarm d...

Visit sentinelpower.com

Key Findings

We analyzed Sentinelpower.com page load time and found that the first response time was 1.1 sec and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

sentinelpower.com performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

3/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

Network Requests Diagram

sentinelpower.com

1115 ms

sentinelpowerinc.com

1100 ms

sentinelpowerinc.com

3141 ms

reset.css

28 ms

SPIstyles.css

60 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Sentinelpower.com, 77% (34 requests) were made to Sentinelpowerinc.com and 11% (5 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Sentinelpowerinc.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 79.3 kB (17%)

Content Size

455.9 kB

After Optimization

376.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sentinelpower.com main page is 455.9 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. 35% of websites need less resources to load. Images take 224.6 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 15.3 kB

  • Original 20.8 kB
  • After minification 19.4 kB
  • After compression 5.6 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. 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 15.3 kB or 73% of the original size.

Image Optimization

-12%

Potential reduce by 26.3 kB

  • Original 224.6 kB
  • After minification 198.3 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. Obviously, Sentinel Power needs image optimization as it can save up to 26.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 1.3 kB

  • Original 166.6 kB
  • After minification 166.6 kB
  • After compression 165.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-83%

Potential reduce by 36.4 kB

  • Original 43.9 kB
  • After minification 31.3 kB
  • After compression 7.5 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. Sentinelpower.com needs all CSS files to be minified and compressed as it can save up to 36.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (15%)

Requests Now

39

After Optimization

33

  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sentinel Power. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sentinelpower.com

sentinelpower.com

1115 ms

sentinelpowerinc.com

sentinelpowerinc.com

1100 ms

sentinelpowerinc.com

sentinelpowerinc.com

3141 ms

reset.css

reset.css

28 ms

SPIstyles.css

SPIstyles.css

60 ms

cse.js

cse.js

45 ms

wt.php

wt.php

21 ms

400dpiLogoResize4.png

400dpiLogoResize4.png

47 ms

YouTube.png

YouTube.png

135 ms

Linkedin.png

Linkedin.png

140 ms

GooglePlus.png

GooglePlus.png

171 ms

twitter.png

twitter.png

194 ms

facebook.png

facebook.png

220 ms

button49.jpg

button49.jpg

254 ms

button50.jpg

button50.jpg

280 ms

button1FF.jpg

button1FF.jpg

490 ms

button58.jpg

button58.jpg

521 ms

button5C.jpg

button5C.jpg

546 ms

sentinelbkgrddouble.jpg

sentinelbkgrddouble.jpg

581 ms

lightningplugextended.jpg

lightningplugextended.jpg

632 ms

SensaphoneSentinel1small.jpg

SensaphoneSentinel1small.jpg

664 ms

DiscoverSmall.png

DiscoverSmall.png

696 ms

AmericanExpressSmall.png

AmericanExpressSmall.png

721 ms

MasterCardSmall.png

MasterCardSmall.png

750 ms

VisaSmall.png

VisaSmall.png

780 ms

webtraxs.php

webtraxs.php

131 ms

cse_element__en.js

cse_element__en.js

26 ms

default+en.css

default+en.css

88 ms

minimalist.css

minimalist.css

90 ms

async-ads.js

async-ads.js

40 ms

clear.png

clear.png

18 ms

nav_logo114.png

nav_logo114.png

18 ms

button4A.jpg

button4A.jpg

25 ms

button4B.jpg

button4B.jpg

56 ms

button51.jpg

button51.jpg

88 ms

button52.jpg

button52.jpg

119 ms

button55.jpg

button55.jpg

150 ms

button56.jpg

button56.jpg

181 ms

button59.jpg

button59.jpg

209 ms

button5A.jpg

button5A.jpg

218 ms

button5D.jpg

button5D.jpg

238 ms

button5E.jpg

button5E.jpg

246 ms

button20.jpg

button20.jpg

262 ms

button21.jpg

button21.jpg

275 ms

Accessibility Review

sentinelpower.com accessibility score

98

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

Best Practices

sentinelpower.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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

sentinelpower.com SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sentinelpower.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 Sentinelpower.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

sentinelpower.com

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