Tools & Wizards About Us

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

subscription-staging.packtpub.com

Packt Subscription | Advance your knowledge in tech

Page Load Speed

1.7 sec in total

First Response

473 ms

Resources Loaded

1.1 sec

Page Rendered

55 ms

About Website

Click here to check amazing Subscription Staging Packt Pub content for India. Otherwise, check out these important facts you probably never knew about subscription-staging.packtpub.com

Access over 7,500 Programming & Development eBooks and videos to advance your IT skills. Enjoy unlimited access to over 100 new titles every month on the latest technologies and trends

Visit subscription-staging.packtpub.com

Key Findings

We analyzed Subscription-staging.packtpub.com page load time and found that the first response time was 473 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

subscription-staging.packtpub.com performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value17.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value23.5 s

0/100

25%

SI (Speed Index)

Value18.1 s

0/100

10%

TBT (Total Blocking Time)

Value1,300 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value30.4 s

0/100

10%

Network Requests Diagram

subscription-staging.packtpub.com

473 ms

bootstrap.css

114 ms

app.css

244 ms

react.js

596 ms

css2

39 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 57% of them (4 requests) were addressed to the original Subscription-staging.packtpub.com, 29% (2 requests) were made to Fonts.googleapis.com and 14% (1 request) were made to Public.profitwell.com. The less responsive or slowest element that took the longest time to load (596 ms) belongs to the original domain Subscription-staging.packtpub.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.3 kB (4%)

Content Size

81.1 kB

After Optimization

77.8 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Subscription-staging.packtpub.com main page is 81.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. CSS take 67.2 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 3.3 kB

  • Original 5.1 kB
  • After minification 5.1 kB
  • After compression 1.9 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 3.3 kB or 63% of the original size.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 8.8 kB
  • After minification 8.8 kB
  • After compression 8.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 67.2 kB
  • After minification 67.2 kB
  • After compression 67.2 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. Subscription-staging.packtpub.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 3 (50%)

Requests Now

6

After Optimization

3

  • JavaScript
  • CSS

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Subscription Staging Packt Pub. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

subscription-staging.packtpub.com accessibility score

78

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

subscription-staging.packtpub.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

Missing source maps for large first-party JavaScript

SEO Factors

subscription-staging.packtpub.com SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Subscription-staging.packtpub.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 Subscription-staging.packtpub.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 data is detected on the main page of Subscription Staging Packt Pub. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: