Tools & Wizards About Us
tabbrowser.info screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

tabbrowser.info

tabbrowser.info

Page Load Speed

2.7 sec in total

First Response

857 ms

Resources Loaded

1.5 sec

Page Rendered

342 ms

tabbrowser.info screenshot

About Website

Click here to check amazing Tabbrowser content for Japan. Otherwise, check out these important facts you probably never knew about tabbrowser.info

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Key Findings

We analyzed Tabbrowser.info page load time and found that the first response time was 857 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

tabbrowser.info performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

82/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value690 ms

43/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.8 s

66/100

10%

Network Requests Diagram

tabbrowser.info

857 ms

melty.css

306 ms

title.png

627 ms

show_ads.js

8 ms

ie9b.png

304 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 28% of them (7 requests) were addressed to the original Tabbrowser.info, 20% (5 requests) were made to Pagead2.googlesyndication.com and 16% (4 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (857 ms) belongs to the original domain Tabbrowser.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 30.9 kB (31%)

Content Size

98.4 kB

After Optimization

67.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tabbrowser.info main page is 98.4 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. Images take 55.0 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 21.4 kB

  • Original 28.9 kB
  • After minification 28.7 kB
  • After compression 7.5 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 21.4 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 203 B

  • Original 55.0 kB
  • After minification 54.8 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. Tabbrowser images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 6.4 kB

  • Original 10.6 kB
  • After minification 10.5 kB
  • After compression 4.2 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 6.4 kB or 61% of the original size.

CSS Optimization

-71%

Potential reduce by 2.8 kB

  • Original 4.0 kB
  • After minification 3.5 kB
  • After compression 1.1 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. Tabbrowser.info needs all CSS files to be minified and compressed as it can save up to 2.8 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (27%)

Requests Now

22

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tabbrowser. 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.

Network Requests Diagram

tabbrowser.info

tabbrowser.info

857 ms

melty.css

melty.css

306 ms

title.png

title.png

627 ms

show_ads.js

show_ads.js

8 ms

ie9b.png

ie9b.png

304 ms

firefoxb.png

firefoxb.png

183 ms

chromeb.png

chromeb.png

532 ms

ca-pub-7541532082218705.js

ca-pub-7541532082218705.js

51 ms

zrt_lookup.html

zrt_lookup.html

55 ms

show_ads_impl.js

show_ads_impl.js

66 ms

fcount.cgi

fcount.cgi

322 ms

ads

ads

281 ms

osd.js

osd.js

12 ms

ads

ads

230 ms

abg.js

abg.js

19 ms

css

css

59 ms

m_js_controller.js

m_js_controller.js

4 ms

favicon

favicon

52 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

18 ms

s

s

12 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

58 ms

x_button_blue2.png

x_button_blue2.png

3 ms

ui

ui

49 ms

MdyApZkAHG2-UELdOwjNjjFZXSz-CGj4o1JtDR7aGgs.js

MdyApZkAHG2-UELdOwjNjjFZXSz-CGj4o1JtDR7aGgs.js

9 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

64 ms

Accessibility Review

tabbrowser.info accessibility score

70

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

[aria-*] attributes do not match their roles

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

Image elements do not have [alt] attributes

Best Practices

tabbrowser.info best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

tabbrowser.info SEO score

62

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tabbrowser.info can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Japanese. Our system also found out that Tabbrowser.info 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

tabbrowser.info

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