Tools & Wizards About Us
blackbookcaviar.co.za screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

blackbookcaviar.co.za

Zimco Aluminum Company | Home Page

Page Load Speed

4.8 sec in total

First Response

861 ms

Resources Loaded

3.7 sec

Page Rendered

251 ms

blackbookcaviar.co.za screenshot

About Website

Click here to check amazing Blackbookcaviar content. Otherwise, check out these important facts you probably never knew about blackbookcaviar.co.za

Zimalco became the first secondary aluminium smelter in South Africa to be listed under the SABS 0197 Quality Manufacturing Standard

Visit blackbookcaviar.co.za

Key Findings

We analyzed Blackbookcaviar.co.za page load time and found that the first response time was 861 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

blackbookcaviar.co.za performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

40/100

25%

SI (Speed Index)

Value7.6 s

26/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.242

51/100

15%

TTI (Time to Interactive)

Value7.3 s

49/100

10%

Network Requests Diagram

blackbookcaviar.co.za

861 ms

analytics.js

21 ms

font-awesome.min.css

259 ms

styles.css

495 ms

jquery-ui.min.css

501 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 84% of them (42 requests) were addressed to the original Blackbookcaviar.co.za, 8% (4 requests) were made to Fonts.gstatic.com and 2% (1 request) 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 Blackbookcaviar.co.za.

Page Optimization Overview & Recommendations

Page size can be reduced by 27.3 kB (2%)

Content Size

1.1 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackbookcaviar.co.za main page is 1.1 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 809.8 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 11.8 kB

  • Original 15.5 kB
  • After minification 13.3 kB
  • After compression 3.8 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 2.2 kB, which is 14% 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 11.8 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 5.2 kB

  • Original 809.8 kB
  • After minification 804.7 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. Blackbookcaviar images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 7.5 kB

  • Original 245.0 kB
  • After minification 245.0 kB
  • After compression 237.5 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

-5%

Potential reduce by 2.8 kB

  • Original 56.3 kB
  • After minification 56.3 kB
  • After compression 53.5 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. Blackbookcaviar.co.za has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 24 (62%)

Requests Now

39

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackbookcaviar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blackbookcaviar.co.za

blackbookcaviar.co.za

861 ms

analytics.js

analytics.js

21 ms

font-awesome.min.css

font-awesome.min.css

259 ms

styles.css

styles.css

495 ms

jquery-ui.min.css

jquery-ui.min.css

501 ms

slick.min.css

slick.min.css

500 ms

toastr.min.css

toastr.min.css

499 ms

fullcalendar.min.css

fullcalendar.min.css

506 ms

fullcalendar.print.css

fullcalendar.print.css

510 ms

lightgallery.min.css

lightgallery.min.css

738 ms

bootstrap.css

bootstrap.css

990 ms

plugins.css

plugins.css

740 ms

layout.css

layout.css

741 ms

responsive.css

responsive.css

757 ms

jquery.min.js

jquery.min.js

1108 ms

jquery-ui.min.js

jquery-ui.min.js

1475 ms

slick.min.js

slick.min.js

984 ms

picturefill.min.js

picturefill.min.js

78 ms

lightgallery.js

lightgallery.js

985 ms

lg-fullscreen.js

lg-fullscreen.js

1106 ms

lg-thumbnail.js

lg-thumbnail.js

1231 ms

lg-video.js

lg-video.js

1247 ms

lg-autoplay.js

lg-autoplay.js

1247 ms

lg-zoom.js

lg-zoom.js

1259 ms

lg-hash.js

lg-hash.js

1266 ms

lg-pager.js

lg-pager.js

1502 ms

bootstrap.min.js

bootstrap.min.js

1504 ms

mapit.min.js

mapit.min.js

1500 ms

functions.js

functions.js

1507 ms

logo.png

logo.png

1516 ms

slide1-about-us.jpg

slide1-about-us.jpg

2200 ms

slide2-products.jpg

slide2-products.jpg

2446 ms

slide3-products.jpg

slide3-products.jpg

2452 ms

corporate-social-investment.jpg

corporate-social-investment.jpg

1963 ms

whistle-btn.png

whistle-btn.png

1754 ms

master-alloys.jpg

master-alloys.jpg

1766 ms

foundary-alloys.jpg

foundary-alloys.jpg

2253 ms

powder.jpg

powder.jpg

2020 ms

deoxidants.jpg

deoxidants.jpg

2209 ms

css

css

36 ms

banner-bg.jpg

banner-bg.jpg

1281 ms

breadcrumbs-bg.png

breadcrumbs-bg.png

1448 ms

content-gradient.png

content-gradient.png

1463 ms

z7NOdRfiaC4Vd8hhoPzfb5vBTP2D6pumR_0.ttf

z7NOdRfiaC4Vd8hhoPzfb5vBTP2D6pumR_0.ttf

52 ms

z7NOdRfiaC4Vd8hhoPzfb5vBTP1v7ZumR_0.ttf

z7NOdRfiaC4Vd8hhoPzfb5vBTP1v7ZumR_0.ttf

71 ms

z7NOdRfiaC4Vd8hhoPzfb5vBTP1d7ZumR_0.ttf

z7NOdRfiaC4Vd8hhoPzfb5vBTP1d7ZumR_0.ttf

84 ms

z7NOdRfiaC4Vd8hhoPzfb5vBTP0D7ZumR_0.ttf

z7NOdRfiaC4Vd8hhoPzfb5vBTP0D7ZumR_0.ttf

107 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1670 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

1426 ms

js

js

69 ms

Accessibility Review

blackbookcaviar.co.za accessibility score

58

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

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

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

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

Best Practices

blackbookcaviar.co.za best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

blackbookcaviar.co.za 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 Blackbookcaviar.co.za 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 Blackbookcaviar.co.za 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

blackbookcaviar.co.za

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