Access shop.centrendl.org. Pay4ebooks | Buy, Download or Sell eBooks Online - Pay4ebooks™

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

shop.centrendl.org

226 ms

shop.centrendl.org

2277 ms

style.css

233 ms

css

87 ms

jquery-1.3.2.min.js

387 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 9% of them (5 requests) were addressed to the original Shop.centrendl.org, 76% (41 requests) were made to Pay4ebooks.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Shop.centrendl.org.

Content Size

384.8 kB

After Optimization

206.0 kB

In fact, the total size of Shop.centrendl.org main page is 384.8 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. Javascripts take 167.9 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 66.6 kB

Original 76.8 kB
After minification 75.1 kB
After compression 10.2 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 66.6 kB or 87% of the original size.

Image Optimization

-41%

Potential reduce by 57.4 kB

Original 140.0 kB
After minification 82.6 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. Obviously, Shop Centrendl needs image optimization as it can save up to 57.4 kB or 41% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-33%

Potential reduce by 54.8 kB

Original 167.9 kB
After minification 167.2 kB
After compression 113.1 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 54.8 kB or 33% of the original size.

Requests Now

After Optimization

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Shop Centrendl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Shop.centrendl.org 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 Shop.centrendl.org 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

shop.centrendl.org

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Pay4ebooks | Buy, Download or Sell eBooks Online - Pay4ebooks™ | Start Earning 80% Income Instantly

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

shop.centrendl.org

shop.centrendl.org

style.css

css

jquery-1.3.2.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

shop.centrendl.org

shop.centrendl.org

style.css

css

jquery-1.3.2.min.js

jquery.cycle.all.min.js

js

buttons.js

loader.js

jquery.min.js

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