Tools & Wizards About Us
blackbox.tw screenshot

Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

blackbox.tw

Global IT Products & Network Solutions Provider | Black Box

Page Load Speed

11.2 sec in total

First Response

263 ms

Resources Loaded

7.8 sec

Page Rendered

3.1 sec

blackbox.tw screenshot

About Website

Click here to check amazing Black Box content for United States. Otherwise, check out these important facts you probably never knew about blackbox.tw

Black Box is the leading provider of copper cabling, patch cabling, and bulk cable for your business communications system. Contact us today.

Visit blackbox.tw

Key Findings

We analyzed Blackbox.tw page load time and found that the first response time was 263 ms and then it took 10.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

blackbox.tw performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value15.1 s

0/100

25%

SI (Speed Index)

Value19.6 s

0/100

10%

TBT (Total Blocking Time)

Value8,760 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.42

23/100

15%

TTI (Time to Interactive)

Value25.6 s

0/100

10%

Network Requests Diagram

blackbox.tw

263 ms

en-us

111 ms

gtm.js

254 ms

main.min.css

115 ms

main.min.css

304 ms

Our browser made a total of 231 requests to load all elements on the main page. We found that 0% of them (1 request) were addressed to the original Blackbox.tw, 67% (155 requests) were made to Bbnscdn.azureedge.net and 9% (20 requests) were made to Blackbox.com. The less responsive or slowest element that took the longest time to load (5.7 sec) relates to the external source Bbnscdn.azureedge.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 357.9 kB (14%)

Content Size

2.6 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackbox.tw main page is 2.6 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. Only a small number of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 228.7 kB

  • Original 261.6 kB
  • After minification 205.2 kB
  • After compression 33.0 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 56.4 kB, which is 22% 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 228.7 kB or 87% of the original size.

Image Optimization

-2%

Potential reduce by 44.5 kB

  • Original 2.0 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. Black Box images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 573 B

  • Original 80.5 kB
  • After minification 80.4 kB
  • After compression 80.0 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

-30%

Potential reduce by 84.2 kB

  • Original 280.6 kB
  • After minification 280.6 kB
  • After compression 196.4 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. Blackbox.tw needs all CSS files to be minified and compressed as it can save up to 84.2 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 46 (21%)

Requests Now

216

After Optimization

170

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 216 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Black Box. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blackbox.tw

blackbox.tw

263 ms

en-us

en-us

111 ms

gtm.js

gtm.js

254 ms

main.min.css

main.min.css

115 ms

main.min.css

main.min.css

304 ms

PageTracker.min.js

PageTracker.min.js

87 ms

ScriptResource.axd

ScriptResource.axd

220 ms

ScriptResource.axd

ScriptResource.axd

494 ms

api.js

api.js

549 ms

project.min.js

project.min.js

483 ms

common.min.js

common.min.js

448 ms

language-selector.min.js

language-selector.min.js

448 ms

WebResource.axd

WebResource.axd

448 ms

jquery.lazy.min.js

jquery.lazy.min.js

545 ms

jquery.lazy.plugins.min.js

jquery.lazy.plugins.min.js

1017 ms

_Incapsula_Resource

_Incapsula_Resource

480 ms

css

css

547 ms

css2

css2

694 ms

optimize.js

optimize.js

807 ms

insight.min.js

insight.min.js

803 ms

conversion_async.js

conversion_async.js

1356 ms

optimize.js

optimize.js

794 ms

uwt.js

uwt.js

791 ms

oktrk.js

oktrk.js

1343 ms

analytics.js

analytics.js

1365 ms

js

js

149 ms

js

js

274 ms

logo_light.png

logo_light.png

2802 ms

contact.png

contact.png

875 ms

logo_light.png

logo_light.png

810 ms

logo_dark.png

logo_dark.png

3924 ms

menu_thumb_discover.jpg

menu_thumb_discover.jpg

4868 ms

menu_thumb_solution.jpg

menu_thumb_solution.jpg

5261 ms

servicemenuthumb.jpg

servicemenuthumb.jpg

5226 ms

menu_thumbs_products.jpg

menu_thumbs_products.jpg

5220 ms

menu_thumb_industry.jpg

menu_thumb_industry.jpg

5226 ms

menu_thumb_insight.jpg

menu_thumb_insight.jpg

5235 ms

digital-workplace.jpg

digital-workplace.jpg

5380 ms

connected-buildings.jpg

connected-buildings.jpg

5435 ms

edge-networking.jpg

edge-networking.jpg

5438 ms

5g-ongo.jpg

5g-ongo.jpg

5439 ms

bb_overviewthumb_datacenter.png

bb_overviewthumb_datacenter.png

5438 ms

bb_overviewthumb_av.png

bb_overviewthumb_av.png

5593 ms

audio-video.jpg

audio-video.jpg

5592 ms

cables-product.jpg

cables-product.jpg

5588 ms

infrastructure.jpg

infrastructure.jpg

5586 ms

iotcb2ccd5974f34a388d4f8d223a4ad9d6.jpg

iotcb2ccd5974f34a388d4f8d223a4ad9d6.jpg

5587 ms

kvm-product.jpg

kvm-product.jpg

5585 ms

networking-product.jpg

networking-product.jpg

5622 ms

transportation.jpg

transportation.jpg

5621 ms

retail.jpg

retail.jpg

5622 ms

military-defence.jpg

military-defence.jpg

5622 ms

manufacturing-industrial.jpg

manufacturing-industrial.jpg

5623 ms

healthcare.jpg

healthcare.jpg

5619 ms

broadcast-production.jpg

broadcast-production.jpg

5654 ms

insight01.jpg

insight01.jpg

5653 ms

insight06da80f6a7d6234f0ba8e4382174eac970.jpg

insight06da80f6a7d6234f0ba8e4382174eac970.jpg

5651 ms

gd-retailarticle_csa_prev2153229142e34916ae05adeccd83cfaf.jpg

gd-retailarticle_csa_prev2153229142e34916ae05adeccd83cfaf.jpg

5652 ms

insight04.jpg

insight04.jpg

5650 ms

insight05eacc09be76674198b6562565695cec00.jpg

insight05eacc09be76674198b6562565695cec00.jpg

5650 ms

insight02.jpg

insight02.jpg

5703 ms

insight03.jpg

insight03.jpg

5704 ms

partner26.png

partner26.png

5709 ms

partner25.png

partner25.png

5691 ms

partner24.png

partner24.png

5690 ms

12001350.js

12001350.js

3658 ms

fbevents.js

fbevents.js

3628 ms

snippet.js

snippet.js

3654 ms

georedirect

georedirect

3627 ms

62458ef5940161001a1e9164

62458ef5940161001a1e9164

3626 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Ew-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Ew-.ttf

3642 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Ew-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Ew-.ttf

4597 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Ew-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Ew-.ttf

4840 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr6Ew-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr6Ew-.ttf

4971 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Uw-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Uw-.ttf

4988 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu170w-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu170w-.ttf

4956 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w-.ttf

4964 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr70w-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr70w-.ttf

4974 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvC70w-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvC70w-.ttf

4964 ms

ionicons.ttf

ionicons.ttf

765 ms

ionicons.ttf

ionicons.ttf

3613 ms

recaptcha__en.js

recaptcha__en.js

3727 ms

3481 ms

3838 ms

ping

ping

3314 ms

collect

collect

2073 ms

collect

collect

2069 ms

collect

collect

2054 ms

collect

collect

2046 ms

Linearicons.woff

Linearicons.woff

2211 ms

_Incapsula_Resource

_Incapsula_Resource

1136 ms

2956 ms

ajax-loader.gif

ajax-loader.gif

1355 ms

partner23.png

partner23.png

1866 ms

collect

collect

1701 ms

partner22.png

partner22.png

1879 ms

collect

collect

1727 ms

collect

collect

1752 ms

get

get

678 ms

352901635118812

352901635118812

504 ms

228e8c87-86a2-48ac-bab4-ea9ef45f2ad7

228e8c87-86a2-48ac-bab4-ea9ef45f2ad7

913 ms

adsct

adsct

797 ms

adsct

adsct

834 ms

partner21.png

partner21.png

933 ms

partner20.png

partner20.png

542 ms

partner19.png

partner19.png

542 ms

partner18.png

partner18.png

540 ms

partner17.png

partner17.png

531 ms

partner16.png

partner16.png

538 ms

Get

Get

212 ms

partner15.png

partner15.png

335 ms

partner14.png

partner14.png

333 ms

partner13.png

partner13.png

337 ms

partner12.png

partner12.png

338 ms

889807401714034

889807401714034

236 ms

174 ms

partner11.png

partner11.png

216 ms

partner10.png

partner10.png

202 ms

ga-audiences

ga-audiences

121 ms

partner09.png

partner09.png

199 ms

partner08.png

partner08.png

199 ms

partner07.png

partner07.png

199 ms

partner06.png

partner06.png

198 ms

101 ms

partner05.png

partner05.png

187 ms

ga-audiences

ga-audiences

91 ms

partner04.png

partner04.png

171 ms

partner03.png

partner03.png

172 ms

partner02.png

partner02.png

173 ms

partner01.png

partner01.png

173 ms

product_partners13.png

product_partners13.png

174 ms

product_partners12.png

product_partners12.png

157 ms

ga-audiences

ga-audiences

77 ms

product_partners10.png

product_partners10.png

153 ms

product_partners9.png

product_partners9.png

154 ms

product_partners8.png

product_partners8.png

156 ms

product_partners7.jpg

product_partners7.jpg

155 ms

product_partners6.jpg

product_partners6.jpg

157 ms

product_partners5.jpg

product_partners5.jpg

154 ms

product_partners4.png

product_partners4.png

117 ms

product_partners2.png

product_partners2.png

116 ms

solution40.png

solution40.png

118 ms

solution39.png

solution39.png

101 ms

solution38.png

solution38.png

102 ms

solution37.png

solution37.png

103 ms

43 ms

solution36.png

solution36.png

72 ms

solution35.png

solution35.png

71 ms

solution34.png

solution34.png

73 ms

solution33.png

solution33.png

73 ms

solution32.png

solution32.png

75 ms

solution31.png

solution31.png

73 ms

solution30.png

solution30.png

80 ms

solution29.png

solution29.png

79 ms

solution28.png

solution28.png

79 ms

solution27.png

solution27.png

78 ms

solution26.png

solution26.png

82 ms

solution25.png

solution25.png

81 ms

solution24.png

solution24.png

91 ms

solution23.png

solution23.png

89 ms

solution22.png

solution22.png

91 ms

solution21.png

solution21.png

91 ms

solution20.png

solution20.png

92 ms

solution19.png

solution19.png

89 ms

solution18.png

solution18.png

95 ms

solution17.png

solution17.png

95 ms

solution16.png

solution16.png

95 ms

solution15.png

solution15.png

95 ms

solution14.png

solution14.png

97 ms

solution13.png

solution13.png

90 ms

solution12.png

solution12.png

93 ms

solution11.png

solution11.png

94 ms

solution10.png

solution10.png

91 ms

solution09.png

solution09.png

91 ms

solution08.png

solution08.png

96 ms

solution07.png

solution07.png

91 ms

solution06.png

solution06.png

93 ms

solution05.png

solution05.png

93 ms

solution04.png

solution04.png

94 ms

solution03.png

solution03.png

93 ms

solution02.png

solution02.png

97 ms

web-widget-framework-401beb9ea3bd83e9b796.js

web-widget-framework-401beb9ea3bd83e9b796.js

35 ms

solution01.png

solution01.png

93 ms

dutch-medical-center-builds-state-of-the-art-lab-on-kvm-solution.jpg

dutch-medical-center-builds-state-of-the-art-lab-on-kvm-solution.jpg

96 ms

successstories2.jpg

successstories2.jpg

100 ms

pandemic-safe-noc-for-miami-airport.jpg

pandemic-safe-noc-for-miami-airport.jpg

97 ms

global-deployment_home-improvement-retailer.jpg

global-deployment_home-improvement-retailer.jpg

97 ms

5g-ongo012c1c4e4583e648518bb378fc6bf8b91e.png

5g-ongo012c1c4e4583e648518bb378fc6bf8b91e.png

100 ms

gsi_banner-1c24208601e2b4a899f3ceb9b658826ca.jpg

gsi_banner-1c24208601e2b4a899f3ceb9b658826ca.jpg

100 ms

tps_banner-1054cbb852c614cc39dd5585696a8db35.jpg

tps_banner-1054cbb852c614cc39dd5585696a8db35.jpg

111 ms

gsi_banner-3.jpg

gsi_banner-3.jpg

130 ms

tps_banner-2.jpg

tps_banner-2.jpg

110 ms

gsi_banner-2.jpg

gsi_banner-2.jpg

189 ms

tps_banner-3.jpg

tps_banner-3.jpg

127 ms

au.png

au.png

117 ms

be.png

be.png

102 ms

br.png

br.png

101 ms

ca.png

ca.png

111 ms

cl.png

cl.png

111 ms

cn.png

cn.png

109 ms

dk.png

dk.png

106 ms

fi.png

fi.png

197 ms

fn.png

fn.png

115 ms

de.png

de.png

115 ms

hk.png

hk.png

114 ms

in.png

in.png

194 ms

ie.png

ie.png

140 ms

it.png

it.png

134 ms

jp.png

jp.png

132 ms

ke.png

ke.png

230 ms

sk.png

sk.png

138 ms

lu.png

lu.png

134 ms

my.png

my.png

152 ms

mx.png

mx.png

163 ms

nl.png

nl.png

162 ms

nz.png

nz.png

163 ms

no.png

no.png

162 ms

ph.png

ph.png

160 ms

pt.png

pt.png

167 ms

sa.png

sa.png

162 ms

sg.png

sg.png

163 ms

es.png

es.png

180 ms

se.png

se.png

181 ms

ch.png

ch.png

180 ms

tw.png

tw.png

175 ms

th.png

th.png

175 ms

ae.png

ae.png

169 ms

eng.png

eng.png

158 ms

us.png

us.png

161 ms

51 ms

pd.js

pd.js

73 ms

Accessibility Review

blackbox.tw accessibility score

82

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 input fields do not have accessible names

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

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

Best Practices

blackbox.tw 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

Missing source maps for large first-party JavaScript

SEO Factors

blackbox.tw SEO score

78

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blackbox.tw 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 Blackbox.tw 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

blackbox.tw

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