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black-iz.com screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 44

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

black-iz.com

Welcome to BLACK iz Limited | BLACK iz Limited provide IT Service & Solution, Interior & Exterior, Web Design & Develop, SEO Service, IT Training Cent...

Page Load Speed

2.5 sec in total

First Response

172 ms

Resources Loaded

1.3 sec

Page Rendered

1 sec

black-iz.com screenshot

About Website

Click here to check amazing BLACK Iz content for Bangladesh. Otherwise, check out these important facts you probably never knew about black-iz.com

BLACK iz Limited (commonly referred to as BLACK iz IT) is a Bangladeshi technology company headquartered in Dhanmondi, Dhaka. Basically BLACK iz is an IT solution provider company from Bangladesh. Las...

Visit black-iz.com

Key Findings

We analyzed Black-iz.com page load time and found that the first response time was 172 ms and then it took 2.4 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

black-iz.com performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value5.3 s

57/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.727

6/100

15%

TTI (Time to Interactive)

Value8.2 s

40/100

10%

Network Requests Diagram

black-iz.com

172 ms

black-iz.com

181 ms

css

23 ms

font-awesome.css

36 ms

owl.carousel.css

69 ms

Our browser made a total of 143 requests to load all elements on the main page. We found that 89% of them (127 requests) were addressed to the original Black-iz.com, 8% (11 requests) were made to Fonts.gstatic.com and 1% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (376 ms) belongs to the original domain Black-iz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 436.5 kB (14%)

Content Size

3.2 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Black-iz.com 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 161.3 kB

  • Original 190.9 kB
  • After minification 171.3 kB
  • After compression 29.6 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 161.3 kB or 85% of the original size.

Image Optimization

-7%

Potential reduce by 191.3 kB

  • Original 2.6 MB
  • After minification 2.4 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 Iz images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 78.8 kB

  • Original 371.4 kB
  • After minification 371.2 kB
  • After compression 292.6 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 78.8 kB or 21% of the original size.

CSS Optimization

-10%

Potential reduce by 5.1 kB

  • Original 52.3 kB
  • After minification 52.2 kB
  • After compression 47.2 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. Black-iz.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 47 (37%)

Requests Now

128

After Optimization

81

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 128 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BLACK Iz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

black-iz.com

black-iz.com

172 ms

black-iz.com

black-iz.com

181 ms

css

css

23 ms

font-awesome.css

font-awesome.css

36 ms

owl.carousel.css

owl.carousel.css

69 ms

owl.theme.css

owl.theme.css

99 ms

slit-slider-style.css

slit-slider-style.css

104 ms

slit-slider-custom.css

slit-slider-custom.css

102 ms

idangerous.swiper.css

idangerous.swiper.css

100 ms

yamm.css

yamm.css

106 ms

animate.css

animate.css

108 ms

prettyPhoto.css

prettyPhoto.css

130 ms

bootstrap-slider.css

bootstrap-slider.css

133 ms

device-mockups2.css

device-mockups2.css

135 ms

bootstrap.min.css

bootstrap.min.css

168 ms

main.css

main.css

139 ms

main-responsive.css

main-responsive.css

144 ms

theme_meadow.css

theme_meadow.css

163 ms

modernizr.js

modernizr.js

199 ms

jquery.js

jquery.js

260 ms

queryloader2.min.js

queryloader2.min.js

176 ms

owl.carousel.js

owl.carousel.js

179 ms

jquery.ba-cond.min.js

jquery.ba-cond.min.js

192 ms

jquery.slitslider.js

jquery.slitslider.js

256 ms

idangerous.swiper.js

idangerous.swiper.js

265 ms

jquery.fitvids.js

jquery.fitvids.js

255 ms

jquery.countTo.js

jquery.countTo.js

256 ms

TweenMax.min.js

TweenMax.min.js

370 ms

ScrollToPlugin.min.js

ScrollToPlugin.min.js

258 ms

jquery.scrollmagic.min.js

jquery.scrollmagic.min.js

265 ms

jquery.easypiechart.js

jquery.easypiechart.js

370 ms

jquery.validate.js

jquery.validate.js

370 ms

wow.min.js

wow.min.js

371 ms

jquery.placeholder.js

jquery.placeholder.js

371 ms

jquery.easing.1.3.min.js

jquery.easing.1.3.min.js

372 ms

jquery.waitforimages.min.js

jquery.waitforimages.min.js

374 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

375 ms

imagesloaded.pkgd.min.js

imagesloaded.pkgd.min.js

376 ms

isotope.pkgd.min.js

isotope.pkgd.min.js

376 ms

jquery.fillparent.min.js

jquery.fillparent.min.js

350 ms

raphael-min.js

raphael-min.js

319 ms

bootstrap.js

bootstrap.js

291 ms

jquery.bootstrap-touchspin.min.js

jquery.bootstrap-touchspin.min.js

290 ms

bootstrap-slider.js

bootstrap-slider.js

288 ms

bootstrap-rating-input.js

bootstrap-rating-input.js

288 ms

bootstrap-hover-dropdown.min.js

bootstrap-hover-dropdown.min.js

287 ms

jquery.gmap.min.js

jquery.gmap.min.js

281 ms

circle_diagram.js

circle_diagram.js

265 ms

main.js

main.js

264 ms

no.png

no.png

221 ms

black-iz-it-bangladesh.jpg

black-iz-it-bangladesh.jpg

168 ms

black-iz-limited-logo.jpg

black-iz-limited-logo.jpg

169 ms

first-&-best-pr-service-in-bangladesh.jpg

first-&-best-pr-service-in-bangladesh.jpg

169 ms

scholership-program-dhaka.jpg

scholership-program-dhaka.jpg

220 ms

free-training-program.jpg

free-training-program.jpg

220 ms

best-interior-design-company-bangladesh.jpg

best-interior-design-company-bangladesh.jpg

221 ms

web-designing-service-dhaka.jpg

web-designing-service-dhaka.jpg

224 ms

best-e-commerce-solution-of-bangladesh.jpg

best-e-commerce-solution-of-bangladesh.jpg

199 ms

interior-design-service-bangladesh.jpg

interior-design-service-bangladesh.jpg

338 ms

seo-online-marketing-form-bangladesh.jpg

seo-online-marketing-form-bangladesh.jpg

338 ms

3d-floor-design.jpg

3d-floor-design.jpg

338 ms

live-chate.jpg

live-chate.jpg

338 ms

advance-seo-course-bangladesh.jpg

advance-seo-course-bangladesh.jpg

331 ms

creative-web-design-course.jpg

creative-web-design-course.jpg

331 ms

graphics-design-course-dhanmondi-dhaka.jpg

graphics-design-course-dhanmondi-dhaka.jpg

228 ms

freelancing&-&-outsourcing-course.jpg

freelancing&-&-outsourcing-course.jpg

229 ms

best-it-service-provider-company-bangladesh.jpg

best-it-service-provider-company-bangladesh.jpg

234 ms

black-iz-it-total-it-solution-form-bangladesh.jpg

black-iz-it-total-it-solution-form-bangladesh.jpg

229 ms

black-iz-webs.jpg

black-iz-webs.jpg

229 ms

black-iz-it-institute.jpg

black-iz-it-institute.jpg

229 ms

71 ms

interior-exterior-design-in-bangladesh.jpg

interior-exterior-design-in-bangladesh.jpg

228 ms

soft-coder-advance-software-development-bangladesh.jpg

soft-coder-advance-software-development-bangladesh.jpg

229 ms

black-iz-publication.jpg

black-iz-publication.jpg

229 ms

search-engine-optimization-bangladesh.jpg

search-engine-optimization-bangladesh.jpg

229 ms

sms-marketing-solution-in-bangladesh.jpg

sms-marketing-solution-in-bangladesh.jpg

230 ms

black-iz-host.jpg

black-iz-host.jpg

284 ms

seo-search-engine-optimization-bangladesh.jpg

seo-search-engine-optimization-bangladesh.jpg

252 ms

social-media-marketing-bangladesh.jpg

social-media-marketing-bangladesh.jpg

250 ms

online-marketing-service-company-bd.jpg

online-marketing-service-company-bd.jpg

282 ms

all-branding-of-company.jpg

all-branding-of-company.jpg

248 ms

best-online-marketing-company-bangladesh.jpg

best-online-marketing-company-bangladesh.jpg

279 ms

sales-management-software.jpg

sales-management-software.jpg

280 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

51 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

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53 ms

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55 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

55 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

55 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

55 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

277 ms

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexQ.ttf

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexQ.ttf

54 ms

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk5hkWVAexQ.ttf

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk5hkWVAexQ.ttf

56 ms

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0RkxhjWVAexQ.ttf

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0RkxhjWVAexQ.ttf

62 ms

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0RkyFjWVAexQ.ttf

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59 ms

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk0ZjWVAexQ.ttf

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61 ms

student-management-soft.png

student-management-soft.png

353 ms

ticketing-management-soft.jpg

ticketing-management-soft.jpg

318 ms

warehouse-management-soft.jpg

warehouse-management-soft.jpg

307 ms

banking-management-soft.jpg

banking-management-soft.jpg

317 ms

inventory-management-soft.jpg

inventory-management-soft.jpg

266 ms

order-management-software.jpg

order-management-software.jpg

258 ms

payroll-management-soft.jpg

payroll-management-soft.jpg

266 ms

stock-management-software.jpg

stock-management-software.jpg

269 ms

purchase-management-soft.jpg

purchase-management-soft.jpg

273 ms

office-interior-design-in-dhaka-bangladesh.jpg

office-interior-design-in-dhaka-bangladesh.jpg

291 ms

analytics.js

analytics.js

107 ms

js

js

111 ms

best-resturant-interior-design-company-in-daka1.jpg

best-resturant-interior-design-company-in-daka1.jpg

153 ms

bnak-brunch-interior-design-in-Bangladesh.jpg

bnak-brunch-interior-design-in-Bangladesh.jpg

154 ms

home-apartment-hotel-interior-design-in-dhaka1.jpg

home-apartment-hotel-interior-design-in-dhaka1.jpg

155 ms

IT-company-interior-design-in-dhaka1.jpg

IT-company-interior-design-in-dhaka1.jpg

161 ms

buying-house-interior-designer-in-dhaka.jpg

buying-house-interior-designer-in-dhaka.jpg

241 ms

black-iz-it-institute-training.jpg

black-iz-it-institute-training.jpg

185 ms

soft-coders-software-solution.jpg

soft-coders-software-solution.jpg

184 ms

sms-marketing-solution-bulk-sms.jpg

sms-marketing-solution-bulk-sms.jpg

185 ms

black-iz-webs-web-design-develop.jpg

black-iz-webs-web-design-develop.jpg

185 ms

inexterior-interior-exterior.jpg

inexterior-interior-exterior.jpg

187 ms

black-iz-it-it-service-solution.jpg

black-iz-it-it-service-solution.jpg

213 ms

black-iz-publication-printing-publication.jpg

black-iz-publication-printing-publication.jpg

215 ms

english-press-release-ebiz-news.jpg

english-press-release-ebiz-news.jpg

216 ms

e-marketing-analyzer-ultimate-way-of-online-marketing.jpg

e-marketing-analyzer-ultimate-way-of-online-marketing.jpg

217 ms

about-black-iz.jpg

about-black-iz.jpg

217 ms

securitystore-security%20device-provider-bangladesh.jpg

securitystore-security%20device-provider-bangladesh.jpg

243 ms

black-host-hosting-domain.jpg

black-host-hosting-domain.jpg

242 ms

logo-black-iz.jpg

logo-black-iz.jpg

230 ms

community-building-website.jpg

community-building-website.jpg

222 ms

customized-software.jpg

customized-software.jpg

223 ms

customized-software-solution.jpg

customized-software-solution.jpg

238 ms

collect

collect

40 ms

ecommerce-website-development.jpg

ecommerce-website-development.jpg

219 ms

interior-&-exterior-design.jpg

interior-&-exterior-design.jpg

221 ms

it-saervice-management.jpeg

it-saervice-management.jpeg

221 ms

radio-tv-site-develop.jpeg

radio-tv-site-develop.jpeg

222 ms

sarch-engine-marketing.jpeg

sarch-engine-marketing.jpeg

192 ms

project-profile-design.jpeg

project-profile-design.jpeg

203 ms

social-media-marketing.jpg

social-media-marketing.jpg

211 ms

short-code-number&-gateway.jpg

short-code-number&-gateway.jpg

206 ms

total-online-marketing.jpg

total-online-marketing.jpg

208 ms

building-3D-plan-design.jpg

building-3D-plan-design.jpg

209 ms

bulk-masking-sms.jpg

bulk-masking-sms.jpg

210 ms

3d-exterior-plan-&-design.jpg

3d-exterior-plan-&-design.jpg

221 ms

banner.jpg

banner.jpg

255 ms

macbook.png

macbook.png

218 ms

Accessibility Review

black-iz.com accessibility score

44

Accessibility Issues

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.

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 IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

black-iz.com 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

black-iz.com SEO score

81

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Black-iz.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Black-iz.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

black-iz.com

Open Graph data is detected on the main page of BLACK Iz. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: