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free.nbbs.biz screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 77

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 55

    SEO

    Google-friendlier than
    20% of websites

Page Load Speed

3.7 sec in total

First Response

1.2 sec

Resources Loaded

2.5 sec

Page Rendered

102 ms

free.nbbs.biz screenshot

About Website

Welcome to free.nbbs.biz homepage info - get ready to check Free Nbbs best content for Japan right away, or after learning these important things about free.nbbs.biz

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Key Findings

We analyzed Free.nbbs.biz page load time and found that the first response time was 1.2 sec and then it took 2.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

free.nbbs.biz performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value4.5 s

73/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value5.1 s

76/100

10%

Network Requests Diagram

free.nbbs.biz

1151 ms

style.css

363 ms

ads.js

7 ms

adssp.js

8 ms

adsnativesp.js

4 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 11% of them (2 requests) were addressed to the original Free.nbbs.biz, 26% (5 requests) were made to Spad.i-mobile.co.jp and 21% (4 requests) were made to Spdeliver.i-mobile.co.jp. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Nbbs.biz.

Page Optimization Overview & Recommendations

Page size can be reduced by 68.7 kB (44%)

Content Size

155.7 kB

After Optimization

87.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Free.nbbs.biz main page is 155.7 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. 15% of websites need less resources to load. Javascripts take 109.7 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 9.9 kB

  • Original 13.3 kB
  • After minification 13.2 kB
  • After compression 3.5 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 9.9 kB or 74% of the original size.

Image Optimization

-8%

Potential reduce by 2.2 kB

  • Original 25.8 kB
  • After minification 23.6 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. Free Nbbs images are well optimized though.

JavaScript Optimization

-47%

Potential reduce by 51.0 kB

  • Original 109.7 kB
  • After minification 109.7 kB
  • After compression 58.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 51.0 kB or 47% of the original size.

CSS Optimization

-82%

Potential reduce by 5.7 kB

  • Original 7.0 kB
  • After minification 5.2 kB
  • After compression 1.3 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. Free.nbbs.biz needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (56%)

Requests Now

18

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Free Nbbs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

free.nbbs.biz

free.nbbs.biz

1151 ms

style.css

style.css

363 ms

ads.js

ads.js

7 ms

adssp.js

adssp.js

8 ms

adsnativesp.js

adsnativesp.js

4 ms

ffree.gif

ffree.gif

1272 ms

f2free.gif

f2free.gif

1286 ms

adcore.js

adcore.js

4 ms

adcore_pc.js

adcore_pc.js

4 ms

adcore_pc_inline.js

adcore_pc_inline.js

3 ms

ad_spot.aspx

ad_spot.aspx

533 ms

adcomp_sp.js

adcomp_sp.js

3 ms

sspcore_spot.js

sspcore_spot.js

171 ms

ssp_spot.ashx

ssp_spot.ashx

882 ms

style.css

style.css

183 ms

ad_creative.ashx

ad_creative.ashx

7 ms

adcore.js

adcore.js

4 ms

adcore_sp.js

adcore_sp.js

6 ms

RestoreXidToMediaStorage.html

RestoreXidToMediaStorage.html

7 ms

Accessibility Review

free.nbbs.biz accessibility score

63

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

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

free.nbbs.biz best practices score

77

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

free.nbbs.biz SEO score

55

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Free.nbbs.biz can be misinterpreted by Google and other search engines. Our service has detected that Japanese 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 Free.nbbs.biz main page’s claimed encoding is shift_jis. 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

free.nbbs.biz

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