Tools & Wizards About Us
blue-siren.net screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

blue-siren.net

Flow and Environmental Monitoring Systems – Blue Siren Inc.

Page Load Speed

1.5 sec in total

First Response

32 ms

Resources Loaded

1 sec

Page Rendered

398 ms

blue-siren.net screenshot

About Website

Welcome to blue-siren.net homepage info - get ready to check Blue Siren best content right away, or after learning these important things about blue-siren.net

Wireless Data Loggers and Monitors for Flow, Level, Velocity, Water Meters, Sewers, Combined Sewer Overflows, CSO, SSO, Inflow and Infiltration Studies, Engineering, Depth, Water Sampling

Visit blue-siren.net

Key Findings

We analyzed Blue-siren.net page load time and found that the first response time was 32 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

blue-siren.net performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value23.1 s

0/100

25%

SI (Speed Index)

Value15.9 s

0/100

10%

TBT (Total Blocking Time)

Value3,360 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value21.2 s

1/100

10%

Network Requests Diagram

blue-siren.net

32 ms

www.blue-siren.com

275 ms

theme.css

9 ms

preloads.js

220 ms

load_feature-9f951eb7d8d53973c719de211f807d63af81c644e5b9a6ae72661ac408d472f6.js

16 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Blue-siren.net, 72% (26 requests) were made to Blue-siren.com and 22% (8 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (458 ms) relates to the external source Blue-siren.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 463.5 kB (37%)

Content Size

1.3 MB

After Optimization

787.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blue-siren.net main page is 1.3 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 650.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 240.6 kB

  • Original 292.6 kB
  • After minification 250.5 kB
  • After compression 52.0 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. This page needs HTML code to be minified as it can gain 42.1 kB, which is 14% 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 240.6 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 1.2 kB

  • Original 219.8 kB
  • After minification 218.5 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. Blue Siren images are well optimized though.

JavaScript Optimization

-34%

Potential reduce by 221.7 kB

  • Original 650.8 kB
  • After minification 650.8 kB
  • After compression 429.1 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 221.7 kB or 34% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 87.8 kB
  • After minification 87.8 kB
  • After compression 87.8 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. Blue-siren.net has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 14 (56%)

Requests Now

25

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blue Siren. 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 as a result speed up the page load time.

Network Requests Diagram

blue-siren.net

blue-siren.net

32 ms

www.blue-siren.com

www.blue-siren.com

275 ms

theme.css

theme.css

9 ms

preloads.js

preloads.js

220 ms

load_feature-9f951eb7d8d53973c719de211f807d63af81c644e5b9a6ae72661ac408d472f6.js

load_feature-9f951eb7d8d53973c719de211f807d63af81c644e5b9a6ae72661ac408d472f6.js

16 ms

omgrfq-chunk-vendors-app.js

omgrfq-chunk-vendors-app.js

18 ms

globo.formbuilder.index.js

globo.formbuilder.index.js

41 ms

shopify-perf-kit-1.0.0.min.js

shopify-perf-kit-1.0.0.min.js

41 ms

theme.css

theme.css

46 ms

load_feature-9f951eb7d8d53973c719de211f807d63af81c644e5b9a6ae72661ac408d472f6.js

load_feature-9f951eb7d8d53973c719de211f807d63af81c644e5b9a6ae72661ac408d472f6.js

34 ms

vendor-scripts-v9.js

vendor-scripts-v9.js

131 ms

features-1c0b396bd4d054b94abae1eb6a1bd6ba47beb35525c57a217c77a862ff06d83f.js

features-1c0b396bd4d054b94abae1eb6a1bd6ba47beb35525c57a217c77a862ff06d83f.js

131 ms

theme.js

theme.js

158 ms

omgrfq-chunk-vendors-app.js

omgrfq-chunk-vendors-app.js

57 ms

trekkie.storefront.d9a2901985070af52757469f28b0cd483872a169.min.js

trekkie.storefront.d9a2901985070af52757469f28b0cd483872a169.min.js

93 ms

shop_events_listener-61fa9e0a912c675e178777d2b27f6cbd482f8912a6b0aa31fa3515985a8cd626.js

shop_events_listener-61fa9e0a912c675e178777d2b27f6cbd482f8912a6b0aa31fa3515985a8cd626.js

92 ms

shopify-boomerang-1.0.0.min.js

shopify-boomerang-1.0.0.min.js

92 ms

BLUESIRENLOGOBLUR_400x.png

BLUESIRENLOGOBLUR_400x.png

76 ms

BLUESIRENLOGOBLUR_140x.png

BLUESIRENLOGOBLUR_140x.png

77 ms

button-arrow.png

button-arrow.png

458 ms

logoblue_x50@2x.png

logoblue_x50@2x.png

76 ms

trekkie.storefront.d9a2901985070af52757469f28b0cd483872a169.min.js

trekkie.storefront.d9a2901985070af52757469f28b0cd483872a169.min.js

65 ms

shop_events_listener-61fa9e0a912c675e178777d2b27f6cbd482f8912a6b0aa31fa3515985a8cd626.js

shop_events_listener-61fa9e0a912c675e178777d2b27f6cbd482f8912a6b0aa31fa3515985a8cd626.js

64 ms

ECRs6t8AQT4

ECRs6t8AQT4

145 ms

WEBSITE_BANNER3_1600x.jpg

WEBSITE_BANNER3_1600x.jpg

30 ms

BLUESIRENLOGOBLUR_400x.png

BLUESIRENLOGOBLUR_400x.png

38 ms

logoblue_x50@2x.png

logoblue_x50@2x.png

72 ms

BLUESIRENLOGOBLUR_140x.png

BLUESIRENLOGOBLUR_140x.png

65 ms

RnG0iql3xmQ

RnG0iql3xmQ

135 ms

iframe_api

iframe_api

31 ms

WEBSITE_BANNER3_1600x.jpg

WEBSITE_BANNER3_1600x.jpg

54 ms

www-widgetapi.js

www-widgetapi.js

3 ms

8Yb-gSArZ-M

8Yb-gSArZ-M

110 ms

www-player.css

www-player.css

9 ms

www-embed-player.js

www-embed-player.js

28 ms

base.js

base.js

66 ms

Accessibility Review

blue-siren.net accessibility score

82

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 have valid values

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

Buttons do not have an accessible name

High

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

High

Links do not have a discernible name

Best Practices

blue-siren.net best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

blue-siren.net SEO score

92

Search Engine Optimization Advices

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 Blue-siren.net 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 Blue-siren.net 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

blue-siren.net

Open Graph data is detected on the main page of Blue Siren. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: