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a1dv.com screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

a1dv.com

Account Suspended

Page Load Speed

385 ms in total

First Response

48 ms

Resources Loaded

247 ms

Page Rendered

90 ms

a1dv.com screenshot

About Website

Visit a1dv.com now to see the best up-to-date A 1 Dv content and also check out these interesting facts you probably never knew about a1dv.com

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Key Findings

We analyzed A1dv.com page load time and found that the first response time was 48 ms and then it took 337 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

a1dv.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

a1dv.com

48 ms

suspendedpage.cgi

133 ms

all.css

24 ms

fa-solid-900.woff

21 ms

fa-regular-400.woff

13 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that 40% of them (2 requests) were addressed to the original A1dv.com, 60% (3 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (133 ms) belongs to the original domain A1dv.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.5 kB (23%)

Content Size

15.1 kB

After Optimization

11.6 kB

  • HTML
  • CSS

In fact, the total size of A1dv.com main page is 15.1 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. 15% of websites need less resources to load. HTML takes 7.6 kB which makes up the majority of the site volume.

HTML Optimization

-46%

Potential reduce by 3.5 kB

  • Original 7.6 kB
  • After minification 7.3 kB
  • After compression 4.1 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 3.5 kB or 46% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 7.5 kB
  • After minification 7.5 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. A1dv.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

1

After Optimization

1

  • CSS

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of A 1 Dv. According to our analytics all requests are already optimized.

Network Requests Diagram

a1dv.com

a1dv.com

48 ms

suspendedpage.cgi

suspendedpage.cgi

133 ms

all.css

all.css

24 ms

fa-solid-900.woff

fa-solid-900.woff

21 ms

fa-regular-400.woff

fa-regular-400.woff

13 ms

Accessibility Review

a1dv.com accessibility score

58

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.

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

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

a1dv.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

a1dv.com SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise A1dv.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 A1dv.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

a1dv.com

Open Graph description is not detected on the main page of A 1 Dv. 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: