Report Summary

  • 7

    Performance

    Renders faster than
    21% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

nb.org

Αρχική | ΝΟΜΙΚΗ ΒΙΒΛΙΟΘΗΚΗ

Page Load Speed

7.9 sec in total

First Response

255 ms

Resources Loaded

7.2 sec

Page Rendered

367 ms

nb.org screenshot

About Website

Click here to check amazing Nb content for Greece. Otherwise, check out these important facts you probably never knew about nb.org

Νομικές Εκδόσεις, Εκπαιδευτικά Προγράμματα, Συνέδρια, Νομικό λογισμικό, Υπηρεσίες Φιλοξενίας. Νομική Βιβλιοθήκη - www.nb.org

Visit nb.org

Key Findings

We analyzed Nb.org page load time and found that the first response time was 255 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

nb.org performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value20.0 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value3,570 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.338

33/100

15%

TTI (Time to Interactive)

Value25.7 s

0/100

10%

Network Requests Diagram

nb.org

255 ms

www.nb.org

684 ms

style.css

338 ms

google_service.js

18 ms

tsize.js

167 ms

Our browser made a total of 202 requests to load all elements on the main page. We found that 74% of them (150 requests) were addressed to the original Nb.org, 19% (38 requests) were made to Img.youtube.com and 3% (7 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Nb.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (33%)

Content Size

3.2 MB

After Optimization

2.2 MB

In fact, the total size of Nb.org main page is 3.2 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. 55% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 243.7 kB

  • Original 289.4 kB
  • After minification 259.6 kB
  • After compression 45.7 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. 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 243.7 kB or 84% of the original size.

Image Optimization

-3%

Potential reduce by 49.0 kB

  • Original 1.9 MB
  • After minification 1.9 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. Nb images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 570.5 kB

  • Original 803.9 kB
  • After minification 692.5 kB
  • After compression 233.4 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 570.5 kB or 71% of the original size.

CSS Optimization

-88%

Potential reduce by 193.3 kB

  • Original 219.9 kB
  • After minification 135.5 kB
  • After compression 26.6 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. Nb.org needs all CSS files to be minified and compressed as it can save up to 193.3 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 67 (34%)

Requests Now

199

After Optimization

132

The browser has sent 199 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

nb.org accessibility score

78

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[role]s do not have all required [aria-*] attributes

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

nb.org best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nb.org SEO score

82

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EL

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-7

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nb.org can be misinterpreted by Google and other search engines. Our service has detected that Greek 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 Nb.org main page’s claimed encoding is iso-8859-7. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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