Tools & Wizards About Us

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

av313.com

Page Load Speed

19.7 sec in total

First Response

631 ms

Resources Loaded

18.5 sec

Page Rendered

573 ms

About Website

Click here to check amazing Av 313 content for Taiwan. Otherwise, check out these important facts you probably never knew about av313.com

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Key Findings

We analyzed Av313.com page load time and found that the first response time was 631 ms and then it took 19.1 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

av313.com performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

18/100

25%

SI (Speed Index)

Value13.9 s

1/100

10%

TBT (Total Blocking Time)

Value13,180 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.642

9/100

15%

TTI (Time to Interactive)

Value23.7 s

1/100

10%

Network Requests Diagram

av313.com

631 ms

index.php

823 ms

bootstrap.css

440 ms

style.css

432 ms

other.css

437 ms

Our browser made a total of 250 requests to load all elements on the main page. We found that 9% of them (22 requests) were addressed to the original Av313.com, 9% (22 requests) were made to Av313.com and 2% (4 requests) were made to Cdn.staticfile.org. The less responsive or slowest element that took the longest time to load (10.5 sec) relates to the external source .

Page Optimization Overview & Recommendations

Page size can be reduced by 498.3 kB (7%)

Content Size

6.8 MB

After Optimization

6.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Av313.com main page is 6.8 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. Only a small number of websites need less resources to load. Images take 6.3 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 235.5 kB

  • Original 265.9 kB
  • After minification 202.6 kB
  • After compression 30.4 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 63.3 kB, which is 24% 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 235.5 kB or 89% of the original size.

Image Optimization

-2%

Potential reduce by 114.3 kB

  • Original 6.3 MB
  • After minification 6.1 MB

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. Av 313 images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 145.1 kB

  • Original 249.4 kB
  • After minification 249.4 kB
  • After compression 104.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 145.1 kB or 58% of the original size.

CSS Optimization

-8%

Potential reduce by 3.5 kB

  • Original 44.0 kB
  • After minification 44.0 kB
  • After compression 40.5 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. Av313.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (12%)

Requests Now

246

After Optimization

217

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 246 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Av 313. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

av313.com accessibility score

71

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.

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

av313.com best practices score

75

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

SEO Factors

av313.com SEO score

75

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    JA

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Av313.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed English language. Our system also found out that Av313.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

Open Graph description is not detected on the main page of Av 313. 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: