Tools & Wizards About Us
nhls.ac.za screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

nhls.ac.za

National Biobank

Page Load Speed

9.2 sec in total

First Response

756 ms

Resources Loaded

8 sec

Page Rendered

442 ms

nhls.ac.za screenshot

About Website

Visit nhls.ac.za now to see the best up-to-date Nhls content for South Africa and also check out these interesting facts you probably never knew about nhls.ac.za

The NHLS National Biobank, as a future knowledge-hub, is planning on growth to meet emerging bio-banking needs of the South African medical researchers, national biobank of south africa.

Visit nhls.ac.za

Key Findings

We analyzed Nhls.ac.za page load time and found that the first response time was 756 ms and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

nhls.ac.za performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value13.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value42.9 s

0/100

25%

SI (Speed Index)

Value42.3 s

0/100

10%

TBT (Total Blocking Time)

Value1,380 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.054

98/100

15%

TTI (Time to Interactive)

Value49.6 s

0/100

10%

Network Requests Diagram

nhls.ac.za

756 ms

www.nhls.ac.za

1336 ms

js

84 ms

style.min.css

602 ms

wp-terms-popup-public.css

609 ms

Our browser made a total of 130 requests to load all elements on the main page. We found that 95% of them (123 requests) were addressed to the original Nhls.ac.za, 3% (4 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Nhls.ac.za.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.8 MB (61%)

Content Size

4.7 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nhls.ac.za main page is 4.7 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. 70% of websites need less resources to load. Javascripts take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 181.4 kB

  • Original 219.5 kB
  • After minification 216.3 kB
  • After compression 38.1 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 181.4 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 25.4 kB

  • Original 1.1 MB
  • After minification 1.1 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. Nhls images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 1.3 MB

  • Original 1.9 MB
  • After minification 1.8 MB
  • After compression 510.2 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 1.3 MB or 72% of the original size.

CSS Optimization

-86%

Potential reduce by 1.3 MB

  • Original 1.5 MB
  • After minification 1.5 MB
  • After compression 203.3 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. Nhls.ac.za needs all CSS files to be minified and compressed as it can save up to 1.3 MB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 98 (80%)

Requests Now

122

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 122 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nhls. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 90 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nhls.ac.za

nhls.ac.za

756 ms

www.nhls.ac.za

www.nhls.ac.za

1336 ms

js

js

84 ms

style.min.css

style.min.css

602 ms

wp-terms-popup-public.css

wp-terms-popup-public.css

609 ms

style.css

style.css

609 ms

651c82c7594bd5ac3567c9023e716a5a.min.css

651c82c7594bd5ac3567c9023e716a5a.min.css

2014 ms

jquery.min.js

jquery.min.js

1006 ms

jquery-migrate.min.js

jquery-migrate.min.js

811 ms

jquery.inview.js

jquery.inview.js

801 ms

wptp-designer-front-end.js

wptp-designer-front-end.js

802 ms

frontend-gtag.min.js

frontend-gtag.min.js

803 ms

rbtools.min.js

rbtools.min.js

1202 ms

rs6.min.js

rs6.min.js

2002 ms

wp-terms-popup-ajaxhandler.js

wp-terms-popup-ajaxhandler.js

1002 ms

wpstg-blank-loader.js

wpstg-blank-loader.js

1009 ms

wpstg-admin-all-pages.min.js

wpstg-admin-all-pages.min.js

1202 ms

css

css

39 ms

pe-icon-7-stroke.css

pe-icon-7-stroke.css

1200 ms

mapsvg-bundle.css

mapsvg-bundle.css

1406 ms

nanoscroller.css

nanoscroller.css

1397 ms

select2.min.css

select2.min.css

1399 ms

rs6.css

rs6.css

1600 ms

index.js

index.js

1597 ms

index.js

index.js

1599 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

1605 ms

select2.full.min.js

select2.full.min.js

2004 ms

jquery.nanoscroller.min.js

jquery.nanoscroller.min.js

1801 ms

typeahead.jquery.js

typeahead.jquery.js

2001 ms

bloodhound.js

bloodhound.js

1804 ms

handlebars.min.js

handlebars.min.js

2214 ms

handlebars-helpers.js

handlebars-helpers.js

3060 ms

mapsvg.js

mapsvg.js

2213 ms

jquery.countTo.js

jquery.countTo.js

2214 ms

gsap.min.js

gsap.min.js

2215 ms

ScrollTrigger.min.js

ScrollTrigger.min.js

2215 ms

awb-tabs-widget.js

awb-tabs-widget.js

2440 ms

awb-vertical-menu-widget.js

awb-vertical-menu-widget.js

2441 ms

cssua.js

cssua.js

2440 ms

modernizr.js

modernizr.js

2437 ms

fusion.js

fusion.js

1846 ms

isotope.js

isotope.js

2029 ms

packery.js

packery.js

2029 ms

swiper.js

swiper.js

2035 ms

bootstrap.transition.js

bootstrap.transition.js

1835 ms

bootstrap.tooltip.js

bootstrap.tooltip.js

1835 ms

bootstrap.tab.js

bootstrap.tab.js

2027 ms

jquery.requestAnimationFrame.js

jquery.requestAnimationFrame.js

1835 ms

jquery.easing.js

jquery.easing.js

1834 ms

jquery.fitvids.js

jquery.fitvids.js

1829 ms

jquery.flexslider.js

jquery.flexslider.js

1835 ms

jquery.ilightbox.js

jquery.ilightbox.js

1836 ms

jquery.infinitescroll.js

jquery.infinitescroll.js

1834 ms

jquery.mousewheel.js

jquery.mousewheel.js

1635 ms

jquery.placeholder.js

jquery.placeholder.js

1636 ms

jquery.fade.js

jquery.fade.js

1827 ms

imagesLoaded.js

imagesLoaded.js

1635 ms

fusion-parallax.js

fusion-parallax.js

1633 ms

fusion-video-general.js

fusion-video-general.js

1637 ms

fusion-video-bg.js

fusion-video-bg.js

1632 ms

fusion-lightbox.js

fusion-lightbox.js

1461 ms

fusion-tooltip.js

fusion-tooltip.js

1626 ms

fusion-sharing-box.js

fusion-sharing-box.js

1436 ms

fusion-flexslider.js

fusion-flexslider.js

1433 ms

fusion-blog.js

fusion-blog.js

1431 ms

gtm.js

gtm.js

85 ms

jquery.sticky-kit.js

jquery.sticky-kit.js

1244 ms

fusion-youtube.js

fusion-youtube.js

1248 ms

vimeoPlayer.js

vimeoPlayer.js

1416 ms

avada-general-footer.js

avada-general-footer.js

1419 ms

avada-quantity.js

avada-quantity.js

1419 ms

avada-crossfade-images.js

avada-crossfade-images.js

1410 ms

S6uyw4BMUTPHjx4wWw.ttf

S6uyw4BMUTPHjx4wWw.ttf

99 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

146 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

164 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

164 ms

avada-select.js

avada-select.js

1197 ms

avada-rev-styles.js

avada-rev-styles.js

1222 ms

avada-contact-form-7.js

avada-contact-form-7.js

1389 ms

jquery.elasticslider.js

jquery.elasticslider.js

1390 ms

avada-live-search.js

avada-live-search.js

1390 ms

fusion-alert.js

fusion-alert.js

1208 ms

awb-off-canvas.js

awb-off-canvas.js

1208 ms

fusion-button.js

fusion-button.js

1235 ms

fusion-motion-effects.js

fusion-motion-effects.js

1404 ms

jquery.textillate.js

jquery.textillate.js

1209 ms

fusion-title.js

fusion-title.js

1209 ms

fusion-animations.js

fusion-animations.js

1207 ms

awb-carousel.js

awb-carousel.js

1212 ms

fusion-counters-box.js

fusion-counters-box.js

1235 ms

fusion-flip-boxes.js

fusion-flip-boxes.js

1209 ms

fusion-container.js

fusion-container.js

1203 ms

fusion-tabs.js

fusion-tabs.js

1204 ms

fusion-recent-posts.js

fusion-recent-posts.js

1204 ms

avada-elastic-slider.js

avada-elastic-slider.js

1207 ms

avada-drop-down.js

avada-drop-down.js

1861 ms

avada-to-top.js

avada-to-top.js

1206 ms

avada-header.js

avada-header.js

1204 ms

avada-menu.js

avada-menu.js

1204 ms

bootstrap.scrollspy.js

bootstrap.scrollspy.js

1203 ms

avada-scrollspy.js

avada-scrollspy.js

1203 ms

fusion-responsive-typography.js

fusion-responsive-typography.js

1375 ms

fusion-scroll-to-anchor.js

fusion-scroll-to-anchor.js

1208 ms

fusion-general-global.js

fusion-general-global.js

1207 ms

fusion-video.js

fusion-video.js

1204 ms

fusion-column.js

fusion-column.js

1204 ms

awb-icons.woff

awb-icons.woff

1403 ms

Pe-icon-7-stroke.woff

Pe-icon-7-stroke.woff

1411 ms

Logo_NHLS.png

Logo_NHLS.png

1239 ms

favicon-32x32.png

favicon-32x32.png

1237 ms

nhls_banner_005.jpg

nhls_banner_005.jpg

1236 ms

dummy.png

dummy.png

1398 ms

nhls_training_home.jpg

nhls_training_home.jpg

1400 ms

nhls_research-1.jpg

nhls_research-1.jpg

1377 ms

NICD_logo_RGB.jpg

NICD_logo_RGB.jpg

1209 ms

NIOH_logo_RGB.jpg

NIOH_logo_RGB.jpg

1208 ms

Biobank_logo_RGB.jpg

Biobank_logo_RGB.jpg

1404 ms

SAVP_logo_RGB.jpg

SAVP_logo_RGB.jpg

1403 ms

COVID_toolkit-800x800.jpg

COVID_toolkit-800x800.jpg

1405 ms

IMG-20211105-WA0035-600x600.jpg

IMG-20211105-WA0035-600x600.jpg

1577 ms

caccine_against_covid_19-600x600.jpg

caccine_against_covid_19-600x600.jpg

1210 ms

COVID_is_Still_with_us3-600x600.jpg

COVID_is_Still_with_us3-600x600.jpg

1846 ms

COVID_is_Still_with_us2-600x600.jpg

COVID_is_Still_with_us2-600x600.jpg

1405 ms

COVID_is_Still_with-600x600.jpg

COVID_is_Still_with-600x600.jpg

1406 ms

doh-320x144.jpg

doh-320x144.jpg

1393 ms

Who-1-320x144.jpg

Who-1-320x144.jpg

1378 ms

logo_samrc-320x144.jpg

logo_samrc-320x144.jpg

1409 ms

logo_fidssa_-320x144.jpg

logo_fidssa_-320x144.jpg

1409 ms

logo_phru-320x144.jpg

logo_phru-320x144.jpg

1409 ms

logo_labtests_online-320x144.jpg

logo_labtests_online-320x144.jpg

1406 ms

Accessibility Review

nhls.ac.za accessibility score

96

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

Links do not have a discernible name

Best Practices

nhls.ac.za best practices score

75

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

Page has valid source maps

SEO Factors

nhls.ac.za SEO score

77

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 Nhls.ac.za 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 Nhls.ac.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

nhls.ac.za

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