Tools & Wizards About Us
onlinescan.avast.com screenshot

Report Summary

  • 69

    Performance

    Renders faster than
    80% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

onlinescan.avast.com

Avast | Download Free Antivirus & VPN | 100% Free & Easy

Page Load Speed

3.9 sec in total

First Response

678 ms

Resources Loaded

2.2 sec

Page Rendered

1.1 sec

onlinescan.avast.com screenshot

About Website

Click here to check amazing Onlinescan Avast content for United States. Otherwise, check out these important facts you probably never knew about onlinescan.avast.com

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Key Findings

We analyzed Onlinescan.avast.com page load time and found that the first response time was 678 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

onlinescan.avast.com performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

21/100

25%

SI (Speed Index)

Value4.8 s

66/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.057

98/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

onlinescan.avast.com

678 ms

index

111 ms

OtAutoBlock.js

47 ms

otSDKStub.js

61 ms

one-trust.js

49 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Onlinescan.avast.com, 80% (73 requests) were made to Static3.avast.com and 8% (7 requests) were made to 4650993.fs1.hubspotusercontent-na1.net. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Static3.avast.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 872.3 kB (43%)

Content Size

2.0 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Onlinescan.avast.com main page is 2.0 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. 65% of websites need less resources to load. Images take 935.3 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 116.6 kB

  • Original 138.4 kB
  • After minification 125.6 kB
  • After compression 21.8 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 116.6 kB or 84% of the original size.

Image Optimization

-2%

Potential reduce by 17.9 kB

  • Original 935.3 kB
  • After minification 917.4 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. Onlinescan Avast images are well optimized though.

JavaScript Optimization

-19%

Potential reduce by 36.2 kB

  • Original 189.6 kB
  • After minification 189.6 kB
  • After compression 153.4 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 36.2 kB or 19% of the original size.

CSS Optimization

-89%

Potential reduce by 701.5 kB

  • Original 786.1 kB
  • After minification 780.1 kB
  • After compression 84.6 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. Onlinescan.avast.com needs all CSS files to be minified and compressed as it can save up to 701.5 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (43%)

Requests Now

86

After Optimization

49

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Onlinescan Avast. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

onlinescan.avast.com

onlinescan.avast.com

678 ms

index

index

111 ms

OtAutoBlock.js

OtAutoBlock.js

47 ms

otSDKStub.js

otSDKStub.js

61 ms

one-trust.js

one-trust.js

49 ms

launch-773db4767ac4.min.js

launch-773db4767ac4.min.js

41 ms

avast.css

avast.css

101 ms

index.css

index.css

134 ms

local.css

local.css

97 ms

userAgentDetect.js

userAgentDetect.js

98 ms

singleDL-primary.js

singleDL-primary.js

97 ms

singleDL-secondary.js

singleDL-secondary.js

287 ms

cash.js

cash.js

92 ms

avast.js

avast.js

217 ms

bootstrap-native-v5.js

bootstrap-native-v5.js

218 ms

cmp-sticky-bars.js

cmp-sticky-bars.js

216 ms

cmp-countdown.js

cmp-countdown.js

219 ms

aa-helper.js

aa-helper.js

220 ms

tiny-slider-2.9.4.min.js

tiny-slider-2.9.4.min.js

218 ms

cmp-academy-carousel.js

cmp-academy-carousel.js

220 ms

trustpilot.js

trustpilot.js

283 ms

client.js

client.js

282 ms

index.js

index.js

282 ms

forms-fetch.js

forms-fetch.js

238 ms

b680e9a8-3d45-4e4a-998f-7d05f89e4486.json

b680e9a8-3d45-4e4a-998f-7d05f89e4486.json

164 ms

id

id

220 ms

Academy-Computer-Virus-Thumb.jpg

Academy-Computer-Virus-Thumb.jpg

245 ms

What_is_a_VPN_and_how_does_it_work-Your_Essential_Guide-Thumb.png

What_is_a_VPN_and_how_does_it_work-Your_Essential_Guide-Thumb.png

229 ms

Hacker-Thumb-a1.png

Hacker-Thumb-a1.png

234 ms

Academy-How-to-Increase-Your-Internet-Speed-Thumb.jpg

Academy-How-to-Increase-Your-Internet-Speed-Thumb.jpg

216 ms

Academy-What-Is-The-about-blank-Page-How-to-Use-or-Remove-It-Thumb.jpg

Academy-What-Is-The-about-blank-Page-How-to-Use-or-Remove-It-Thumb.jpg

249 ms

Academy-How-to-Encrypt-Email-Thumb.jpg

Academy-How-to-Encrypt-Email-Thumb.jpg

250 ms

Academy-How-to-Clean-Your-Computer-Screen-Without-Damaging-It-Thumb.jpg

Academy-How-to-Clean-Your-Computer-Screen-Without-Damaging-It-Thumb.jpg

249 ms

Academy-What-Is-a-Swatting-Incident-and-How-Does-Swatting-Work-Thumb.jpg

Academy-What-Is-a-Swatting-Incident-and-How-Does-Swatting-Work-Thumb.jpg

244 ms

Academy-Everything-You-Need-To-Know-About-Local-Area-Networks-Thumb.jpg

Academy-Everything-You-Need-To-Know-About-Local-Area-Networks-Thumb.jpg

246 ms

discount-1-mono.svg

discount-1-mono.svg

97 ms

avast-logo-default.svg

avast-logo-default.svg

90 ms

prodico-32_free-antivirus_white.svg

prodico-32_free-antivirus_white.svg

127 ms

icons-16.svg

icons-16.svg

92 ms

prodico-32_premium-security_white.svg

prodico-32_premium-security_white.svg

170 ms

prodico-32_ultimate_white.svg

prodico-32_ultimate_white.svg

168 ms

prodico-32_secureline-vpn_white.svg

prodico-32_secureline-vpn_white.svg

167 ms

prodico-32_antitrack_white.svg

prodico-32_antitrack_white.svg

169 ms

prodico-32_secure-browser-color.svg

prodico-32_secure-browser-color.svg

170 ms

prodico-32_secure-browser-pro-color.svg

prodico-32_secure-browser-pro-color.svg

185 ms

prodico-32_breachguard_white.svg

prodico-32_breachguard_white.svg

182 ms

prodico-32_online-privacy-and-security_white.svg

prodico-32_online-privacy-and-security_white.svg

182 ms

prodico-32_cleanup-premium_white.svg

prodico-32_cleanup-premium_white.svg

184 ms

prodico-32_driver-updater_white.svg

prodico-32_driver-updater_white.svg

183 ms

prodico-32_avast-one.svg

prodico-32_avast-one.svg

179 ms

icons-32.svg

icons-32.svg

193 ms

product-icon-32x32-smb-home-office_white.svg

product-icon-32x32-smb-home-office_white.svg

198 ms

product-icon-32x32-smb-small-business_white.svg

product-icon-32x32-smb-small-business_white.svg

193 ms

brush.svg

brush.svg

192 ms

award_43280_2853279_toprated.png

award_43280_2853279_toprated.png

556 ms

avtest_award_2023_best_protection_avast.png

avtest_award_2023_best_protection_avast.png

1154 ms

hero-img.svg

hero-img.svg

200 ms

award-winning--shield-badge.svg

award-winning--shield-badge.svg

198 ms

other-threats--browser-software.svg

other-threats--browser-software.svg

201 ms

users--account.svg

users--account.svg

221 ms

lightbulb--omni.svg

lightbulb--omni.svg

220 ms

av-test-top-product-16-9.png

av-test-top-product-16-9.png

208 ms

deploy-layered--shields-hand.svg

deploy-layered--shields-hand.svg

223 ms

one-click-deployment--laptop-hand.svg

one-click-deployment--laptop-hand.svg

214 ms

location

location

173 ms

defend-wifi--shield.svg

defend-wifi--shield.svg

235 ms

ransomware--laptop-shield-money.svg

ransomware--laptop-shield-money.svg

222 ms

icons-24.svg

icons-24.svg

207 ms

media-security.png

media-security.png

788 ms

media-security.png

media-security.png

962 ms

media-vpn.png

media-vpn.png

650 ms

media-vpn.png

media-vpn.png

826 ms

media-cleanup.png

media-cleanup.png

913 ms

media-cleanup.png

media-cleanup.png

1002 ms

MierB03-SubsetEng-ExtraBold.woff

MierB03-SubsetEng-ExtraBold.woff

727 ms

MierB03-SubsetEng-Regular.woff

MierB03-SubsetEng-Regular.woff

673 ms

MierB03-SubsetEng-Bold.woff

MierB03-SubsetEng-Bold.woff

699 ms

media-install.svg

media-install.svg

699 ms

media-install.svg

media-install.svg

701 ms

av-test-best-protection-2022.png

av-test-best-protection-2022.png

729 ms

award_43280_2853279_toprated.png

award_43280_2853279_toprated.png

734 ms

google-play.svg

google-play.svg

743 ms

app-store-badge.svg

app-store-badge.svg

742 ms

chrome.svg

chrome.svg

747 ms

avast-logo-inverse.svg

avast-logo-inverse.svg

748 ms

flag-language-selector-v3.svg

flag-language-selector-v3.svg

749 ms

gen-logo.svg

gen-logo.svg

762 ms

dtyp-thumb-sm.svg

dtyp-thumb-sm.svg

759 ms

prodico-48_avast-one.svg

prodico-48_avast-one.svg

757 ms

dtyp-thumb-lg.svg

dtyp-thumb-lg.svg

757 ms

icons-16.svg

icons-16.svg

757 ms

Accessibility Review

onlinescan.avast.com accessibility score

90

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

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.

Best Practices

onlinescan.avast.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

onlinescan.avast.com SEO score

86

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

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 Onlinescan.avast.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 Onlinescan.avast.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

onlinescan.avast.com

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