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sirenavacuum.com screenshot

Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

sirenavacuum.com

Vacuum Cleaner Manufacturer | Online Shop | Sirena®

Page Load Speed

488 ms in total

First Response

108 ms

Resources Loaded

380 ms

Page Rendered

0 ms

sirenavacuum.com screenshot

About Website

Click here to check amazing Sirena Vacuum content for United States. Otherwise, check out these important facts you probably never knew about sirenavacuum.com

Official Sirena® store. Discover Sirena Vacuum Cleaner, Sirena Twister, and Sirena Kitchenware products. Buy online directly from Sirena!

Visit sirenavacuum.com

Key Findings

We analyzed Sirenavacuum.com page load time and found that the first response time was 108 ms and then it took 380 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

sirenavacuum.com performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

81/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

80/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value410 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

Network Requests Diagram

sirenavacuum.com

108 ms

sirenasystem.com

175 ms

rfsn_v4_main.js

42 ms

1fbq5dp0n

50 ms

Our browser made a total of 4 requests to load all elements on the main page. We found that 25% of them (1 request) were addressed to the original Sirenavacuum.com, 50% (2 requests) were made to Sirenasystem.com and 25% (1 request) were made to Embed.tawk.to. The less responsive or slowest element that took the longest time to load (175 ms) relates to the external source Sirenasystem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 314.3 kB (79%)

Content Size

398.7 kB

After Optimization

84.4 kB

  • HTML
  • JavaScript

In fact, the total size of Sirenavacuum.com main page is 398.7 kB. This result falls within a big category (top 100 000) of medium weight web pages. Only a small number of websites need less resources to load. HTML takes 397.7 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 313.9 kB

  • Original 397.7 kB
  • After minification 397.6 kB
  • After compression 83.8 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 313.9 kB or 79% of the original size.

JavaScript Optimization

-38%

Potential reduce by 397 B

  • Original 1.0 kB
  • After minification 712 B
  • After compression 647 B

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 397 B or 38% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

2

After Optimization

2

  • JavaScript

The browser has sent 2 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sirena Vacuum. According to our analytics all requests are already optimized.

Network Requests Diagram

sirenavacuum.com

sirenavacuum.com

108 ms

sirenasystem.com

sirenasystem.com

175 ms

rfsn_v4_main.js

rfsn_v4_main.js

42 ms

1fbq5dp0n

1fbq5dp0n

50 ms

Accessibility Review

sirenavacuum.com accessibility score

78

Accessibility Issues

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

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

sirenavacuum.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

sirenavacuum.com SEO score

79

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

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

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 Sirenavacuum.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 Sirenavacuum.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

sirenavacuum.com

Open Graph data is detected on the main page of PARSED_DOMAIN, but there is no image specified in description. It would be a good idea for the website admin to select a nice image that can properly represent the website in Open Graph data, otherwise the first found image will be taken for this purpose and social media information block will look like this: