Tools & Wizards About Us
adverttech.com screenshot

Report Summary

  • 86

    Performance

    Renders faster than
    89% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

adverttech.com

Advert Technologies

Page Load Speed

2.8 sec in total

First Response

254 ms

Resources Loaded

2.5 sec

Page Rendered

111 ms

adverttech.com screenshot

About Website

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Key Findings

We analyzed Adverttech.com page load time and found that the first response time was 254 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

adverttech.com performance score

86

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

80/100

25%

SI (Speed Index)

Value5.4 s

55/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

adverttech.com

254 ms

bossion.css

214 ms

css

1340 ms

jq.js

274 ms

jquery.easing.1.3.js

215 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that 86% of them (18 requests) were addressed to the original Adverttech.com, 10% (2 requests) were made to Fonts.proxy.ustclug.org and 5% (1 request) were made to Fonts.lug.ustc.edu.cn. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Fonts.lug.ustc.edu.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 30.5 kB (5%)

Content Size

583.5 kB

After Optimization

553.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Adverttech.com main page is 583.5 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. 25% of websites need less resources to load. Images take 510.7 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 11.1 kB

  • Original 15.0 kB
  • After minification 14.8 kB
  • After compression 3.9 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 11.1 kB or 74% of the original size.

Image Optimization

-1%

Potential reduce by 6.1 kB

  • Original 510.7 kB
  • After minification 504.6 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. Advert Tech images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 11.6 kB

  • Original 52.6 kB
  • After minification 52.6 kB
  • After compression 41.0 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 11.6 kB or 22% of the original size.

CSS Optimization

-31%

Potential reduce by 1.6 kB

  • Original 5.2 kB
  • After minification 5.2 kB
  • After compression 3.6 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. Adverttech.com needs all CSS files to be minified and compressed as it can save up to 1.6 kB or 31% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (24%)

Requests Now

17

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Advert Tech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

adverttech.com

adverttech.com

254 ms

bossion.css

bossion.css

214 ms

css

css

1340 ms

jq.js

jq.js

274 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

215 ms

jquery.lavalamp.min.js

jquery.lavalamp.min.js

215 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

216 ms

m.js

m.js

216 ms

css

css

494 ms

css

css

15 ms

logo.png

logo.png

62 ms

gif.gif

gif.gif

63 ms

png.png

png.png

301 ms

69.jpg

69.jpg

118 ms

home_learn.png

home_learn.png

62 ms

14.jpg

14.jpg

186 ms

storage.jpg

storage.jpg

250 ms

earth.png

earth.png

123 ms

nav_a.gif

nav_a.gif

124 ms

prev.png

prev.png

186 ms

next.png

next.png

185 ms

Accessibility Review

adverttech.com accessibility score

53

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

adverttech.com 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

adverttech.com SEO score

54

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

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 Adverttech.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 Adverttech.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

adverttech.com

Open Graph description is not detected on the main page of Advert Tech. 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: