Tools & Wizards About Us
nbjack.com screenshot

Report Summary

  • 91

    Performance

    Renders faster than
    91% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

nbjack.com

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Page Load Speed

912 ms in total

First Response

382 ms

Resources Loaded

530 ms

Page Rendered

0 ms

nbjack.com screenshot

About Website

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Key Findings

We analyzed Nbjack.com page load time and found that the first response time was 382 ms and then it took 530 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

nbjack.com performance score

91

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

nbjack.com

382 ms

wp-emoji-release.min.js

205 ms

style.min.css

22 ms

c7f0c31e738e8e1749658b3526dba3a7.css

32 ms

swiper-bundle.min.css

28 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Nbjack.com and no external sources were called. The less responsive or slowest element that took the longest time to load (382 ms) belongs to the original domain Nbjack.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 155.8 kB (14%)

Content Size

1.1 MB

After Optimization

991.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nbjack.com main page is 1.1 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. 50% of websites need less resources to load. Images take 904.0 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 124.6 kB

  • Original 137.3 kB
  • After minification 105.3 kB
  • After compression 12.7 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 32.0 kB, which is 23% 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 124.6 kB or 91% of the original size.

Image Optimization

-1%

Potential reduce by 5.8 kB

  • Original 904.0 kB
  • After minification 898.2 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. Nb Jack images are well optimized though.

JavaScript Optimization

-18%

Potential reduce by 10.2 kB

  • Original 56.7 kB
  • After minification 56.7 kB
  • After compression 46.5 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 10.2 kB or 18% of the original size.

CSS Optimization

-31%

Potential reduce by 15.2 kB

  • Original 49.2 kB
  • After minification 49.2 kB
  • After compression 34.0 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. Nbjack.com needs all CSS files to be minified and compressed as it can save up to 15.2 kB or 31% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (25%)

Requests Now

16

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nb Jack. 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 CSS and as a result speed up the page load time.

Network Requests Diagram

nbjack.com

nbjack.com

382 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

205 ms

style.min.css

style.min.css

22 ms

c7f0c31e738e8e1749658b3526dba3a7.css

c7f0c31e738e8e1749658b3526dba3a7.css

32 ms

swiper-bundle.min.css

swiper-bundle.min.css

28 ms

style.css

style.css

24 ms

dark-mode.css

dark-mode.css

31 ms

thumb10.jpg

thumb10.jpg

12 ms

thumb33.jpg

thumb33.jpg

15 ms

thumb31.jpg

thumb31.jpg

12 ms

thumb29.jpg

thumb29.jpg

17 ms

thumb27.jpg

thumb27.jpg

15 ms

thumb25.jpg

thumb25.jpg

38 ms

thumb22.jpg

thumb22.jpg

31 ms

swiper-bundle.min.js

swiper-bundle.min.js

21 ms

script.js

script.js

21 ms

thumb20.jpg

thumb20.jpg

27 ms

thumb18.jpg

thumb18.jpg

35 ms

Accessibility Review

nbjack.com accessibility score

96

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

Links do not have a discernible name

Best Practices

nbjack.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

nbjack.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

Links are not crawlable

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    IT

  • Encoding

    UTF-8

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

nbjack.com

Open Graph description is not detected on the main page of Nb Jack. 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: